EP2467833A2 - Procédé de visualisation d'une information virtuelle dans un environnement réel - Google Patents

Procédé de visualisation d'une information virtuelle dans un environnement réel

Info

Publication number
EP2467833A2
EP2467833A2 EP10744693A EP10744693A EP2467833A2 EP 2467833 A2 EP2467833 A2 EP 2467833A2 EP 10744693 A EP10744693 A EP 10744693A EP 10744693 A EP10744693 A EP 10744693A EP 2467833 A2 EP2467833 A2 EP 2467833A2
Authority
EP
European Patent Office
Prior art keywords
virtual information
poi
area
view
real environment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP10744693A
Other languages
German (de)
English (en)
Inventor
Peter Meier
Frank Angermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Metaio GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metaio GmbH filed Critical Metaio GmbH
Priority to EP20158415.8A priority Critical patent/EP3675067A1/fr
Publication of EP2467833A2 publication Critical patent/EP2467833A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating three-dimensional [3D] models or images for computer graphics
    • G06T19/006—Mixed reality
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—Three-dimensional [3D] image rendering
    • G06T15/10—Geometric effects
    • G06T15/20—Perspective computation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00—Manipulating three-dimensional [3D] models or images for computer graphics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C23/00—Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the present invention relates to a method for displaying virtual information in a real environment.
  • the method is particularly suitable for the ergonomic representation and marking of points of interest in the world by means of augmented reality technology.
  • Augmented Reality is a technology that overlays virtual data with reality, facilitating the association of data with reality.
  • mobile AR systems are already known.
  • powerful mobile devices e.g., smartphones
  • They have been found to be suitable for AR deployment. They now have comparatively large color displays, built-in cameras, good processors and additional sensors, such as orientation sensors and GPS.
  • the position of the device can be approximated via radio networks.
  • the so-called "Birdview” (a kind of bird's-eye view) is used as an overview of points in the environment.It is used, for example, to display to the user through visualized virtual information, such as where interesting in the real world With limited screen size, it has a limited view of distant elements, or the resolution becomes too small and the elements are indistinguishable / visible, complicating the surface through simultaneous display two views.
  • the size of the objects is not scaled correctly, this reduces the distance perception of the users and thus the ability to allocate.
  • the size of the objects is scaled, they become small and unreadable at long distances. The surface looks unclean and untidy.
  • the aim of the invention is to provide a method for displaying virtual information in a real environment, with which an ergonomic representation of points of interest in the real world can be achieved without restricting the field of view of the user too much and the user with too much information overwhelm.
  • a first aspect of the invention relates to a method for presenting virtual information in a real environment, comprising the following steps:
  • the system structure comprising at least one display device
  • the at least one part of the system structure may, for example, be a camera whose position and orientation (pose) is determined, the camera not having to be permanently connected to the display device. In certain cases, no camera is needed at all for the entire system, if, for example, the pose of at least part of the system setup is determined only by GPS and orientation sensors. Basically, the determination of the position of each part of the system structure is suitable, provided that conclusions about the viewing direction of the user can be made.
  • the first area may be a near area, while the second area may be a far area.
  • the first area represents a location area, while the second area represents a proximity area.
  • weather data can be taken into account in the display of virtual information in a view of a real environment, for example, via the Internet ("online") queried
  • online the Internet
  • different degrees of complexity are conceivable for processing, eg fixed lighting models or materials can be assigned on the basis of the weather conditions (eg textures).
  • Shadow throws or lighting conditions may be calculated virtual information is an interesting point (also commonly referred to as a "point of interest", POI for short, especially in conjunction with navigation devices) in relation to the real environment.
  • the invention offers the advantage that one obtains an ergonomic representation of virtual information, in particular of interesting points, in the real world, without restricting the field of vision of the user too much and overburdening the user with too much information.
  • many different virtual information can be displayed, but this does not lead to an excessive demand of the user due to the ergonomic presentation of the virtual information.
  • the assignment of information can be strengthened by considering the human perception mechanisms. Further advantageous embodiments of the invention can be found in the dependent claims.
  • FIG. 1 is a plan view showing a schematic arrangement of exemplary system structures in relation to a real environment that are usable to perform a method according to the invention
  • FIG. 2 shows, in a schematic arrangement, an exemplary division of points of interest (surrounding POIs) into different radii ranges
  • FIG. 3 shows, in a schematic arrangement, a possible approach for the calculation of the radii over POIs in sectors, wherein the radii per sector may differ.
  • FIG. 4 shows possible elements of an exemplary view of the real environment with visualized virtual information (here : POI objects) for forming an embodiment of a user interface according to aspects of the invention
  • 5 shows possible elements of the user interface according to FIG. 4, when the operating focus is in the location area
  • FIG. 6 shows an exemplary preview ("Preview") for a virtual information (here: POI) in the location area of the view according to FIG. 4,
  • FIG. 7 shows an exemplary possibility of masking out surface elements from the view according to FIG. 4, if these are not needed;
  • FIG. 8-1 1 show different display options for embodiments of virtual information (here: POI objects),
  • FIG. 12 is a flowchart showing an overview of the overall flow of an embodiment of a method according to the invention.
  • FIG. 13 shows by means of an embodiment a possible procedure for calculating the radius 0 (see FIG. 2) of the location area, as shown by way of example in the view according to FIG. 4.
  • FIG. 14 shows by way of an embodiment a possible procedure for calculating the radius 1, as shown by way of example in FIG. 2,
  • FIG. 15 shows by way of an embodiment a possible procedure for calculating the radius 2, as illustrated by way of example in FIG. 2, FIG.
  • FIG. 16 shows a schematic view to illustrate exemplary possibilities for the aggregation of virtual information (here: POI objects),
  • FIG. 17 shows an exemplary, possible procedure for assigning shading and material effects (shading) to the virtual information (FIG. here: POI objects),
  • FIG. 18 shows exemplary possible interactions with virtual information (here: POI objects).
  • Figure 1 shows in a plan view a schematic arrangement of exemplary system structures with respect to a real environment, which are usable to perform a method according to the invention.
  • Figure 1 shows various possibilities of a system structure.
  • the user carries as a display device a head-mounted display system (HMD for short) with a display 21 which is part of the system structure 20.
  • the display 21 can, for example, comprise a generally known semipermeable data glasses ( "Optical See-Through Display"), in the virtual information provided by a computer 23, can be displayed.
  • the user then sees in a view of the real world 40 through the semitransparent data goggles 21 real-world objects enriched with visualized virtual information (such as POI objects related to the real world).
  • the system assembly 20 forms one embodiment of a well known Augmented Reality (AR) system.
  • AR Augmented Reality
  • Additional sensors 24, such as rotation sensors and an optical tracking camera 22 may be attached to the display 21.
  • the display 21 may be semipermeable or powered by a camera image with images of reality. If the display 21 is semitransparent, calibration between eye 25 and display 21 is necessary. For this purpose, various methods are documented in the prior art and known to the person skilled in the art.
  • position sensors can also be installed, such as GPS sensors (GPS: Global Positioning System), for determining the geographical location of the system structure 20 (eg, according to lengths and latitude) in the real world 40.
  • GPS Global Positioning System
  • FIG. 1B another exemplary system structure 30 is shown which can often be found eg in modern mobile phones (so-called "smartphones") .
  • the display device 31 eg in the form of a screen or display
  • computer 33 Sensors 34 and camera 32 form a system unit which is accommodated approximately in a common housing of a mobile telephone
  • the view of the real environment 40 is provided by the display 31, which represents a camera image of the real environment 40, which is from the camera 32
  • the camera image may be displayed on display 31 and supplemented with additional virtual information (such as POI objects related to the real world.)
  • the system assembly 30 forms another embodiment of the present invention well-known Augmented Reality (AR) system.
  • AR Augmented Reality
  • this invention can be used sensibly for all forms of AR.
  • the visualization is performed in the so-called optical-see-through mode with semi-transmissive HMD or in the video sea-through method with camera and screen.
  • the camera is referred to below, this may be a camera or the optical system which results from the combination of eye and display screen (see display 21 of FIG. Both have camera properties relevant to the insertion of virtual information, such as the opening angle and the main image point.
  • the invention can also be used in connection with stereoscopic displays, whereby advantageously two cameras each record a video stream for an eye in the video see-through approach.
  • the virtual 3D information can be calculated individually for each eye.
  • the processing of the different substeps described below can basically be distributed to different computers via network. So it is a client / server architecture or purely client-based solution possible.
  • the client could send an image to a server, which based on the image statements on the 3D position and 3D orientation of the system structure (see. Fig. 1) or a part thereof in relation to the real world (hereinafter called pose) and provides the client with visibility.
  • the client or server may also include multiple computing devices, such as multiple CPUs or specialized hardware components, such as well-known FPGAs, ASICs, GPUs, or DSPs.
  • Multiple clients can also exchange information with each other, which is generated, for example, in terms of visibility at this location or if a client creates a POI. This information exchange can take place via a server, but it would also be possible direct connections via Bluetooth or WLAN.
  • the pose (position and orientation) of the camera in the room is needed. This can be realized in many different ways. For example, you can only detect the pose in the world with GPS and an orientation sensor with electronic compass (as used in some modern mobile phones, for example). However, the uncertainty of the pose is then very high. Therefore, other methods such as optical initialization and tracking or the combination of optical methods with GPS and orientation sensors may be used. WLAN localization can also be used or RFIDs or optical markers can help localization.
  • a client-server based approach is possible. In particular, the client may request location-specific information that it requires for optical tracking from the server. These may be, for example, reference images of the environment with pose information and depth information. The invention can improve the information presentation for the client.
  • remote view scenario For example, a maintenance expert in a control room sees the image of the client transmitted via the data network and the correspondingly prepared information on his screen. He could then give the client instructions or just watch.
  • a person it is conceivable for a person to view recorded image or video material with interactive additional information presented according to the invention and, if possible, navigate through the material similarly to the Internet-based application "Google Streetview”.
  • the invention can also be installed or carried in vehicles, aircraft or ships as a monitor, HMD or by means of a head-up display.
  • an interesting Point of Interest can be created for a wide variety of information types, examples are given below, images of places with GPS information can be displayed, and information from the Internet can be extracted automatically Companies or restaurants can be websites with addresses or pages on which evaluations can be made, users can deposit texts, pictures or 3D objects in places and make them accessible to others, information pages such as Wikipedia can be searched for geoinformation and The sites can be made accessible as POIs, POIs can be generated automatically from the search or browse behavior of mobile device users, and other interesting places can be displayed such as subways or bus stations, hospitals, police stations, doctors, real estate ads or fitness clubs.
  • POI Point of Interest
  • FIG. 2 shows in a schematic arrangement an exemplary distribution of points of interest (surrounding POIs) into different radii ranges.
  • FIG. 3 shows in a schematic arrangement a possible approach for calculating the radii over POIs in sectors, the radii differing per sector 4 shows possible elements of an exemplary view of the real environment with displayed virtual information (here: POI objects) to form an embodiment of a user interface according to aspects of the invention.
  • POI objects displayed virtual information
  • At least part of the view 1 is related to the real environment (which is the view through a semitransparent HMD 21 or on-screen HMD 21 of FIG. 1A, or a screen shot of a camera image on the display 31 of FIG Fig. IB) into several areas.
  • these comprise a first region 3, which in this embodiment represents a proximity region 3, a second region 4, which in this embodiment represents a far region 4, and a third region 5, which in this embodiment represents a location region 5.
  • objects of the real environment 40 within the proximity area 3 are placed closer to the system structure 20 or 30 than objects of the real environment within the far area 4.
  • objects of the real environment 40 are closer to the system structure 20 or 30 Placed as objects of the real environment within the proximity 3.
  • At least one virtual information is displayed in the view 1 according to FIG. 4 (in the present exemplary embodiment, a plurality of virtual information POI1-POI4, POIl 1-POI14 and POI21-POI23 is displayed).
  • these represent points of interest (POIs) in relation to reality, which are visible in view 1.
  • a virtual information POIl is displayed for a visible in the view 1 building (not shown in FIG. 4), which points to this building or is optically associated with this and possibly allows to retrieve more information about the building.
  • the information POIl is superimposed on the display device 21 or 31 in at least one part of the view 1 of the real environment, taking into account the position and orientation of the corresponding system structure 20 or 30 or a part thereof.
  • the visual information displayed with respect to the type of insertion in the view 1 is displayed differently in the proximity area 3 than in the distance area 4.
  • the same virtual information (say POI1) in the proximity area 3 eg if it is associated with a real object in the near zone 3, shown differently than if it were faded in the far-end region 4, e.g. if it is associated with a real object in the far-end area 4 (a POI is simultaneously present in only one area here).
  • the proximity region 3 is separated from the far region 4 and the location region 5 by a respective boundary, each having a radius (radius 0 to radius 3) in the direction of a viewing angle of the display device in the present embodiment (Fig. 2 shows beyond that, further limitations or radii, as explained in more detail below).
  • the definition and calculation of the radii according to Figures 2 and 3 will be described in more detail below.
  • the boundaries have no fixed shape, but are preferably rotationally symmetric with respect to the camera or the viewer. Also, the boundaries need not be circular, but may, for example, also have elliptical or other shapes.
  • FIG. 12 shows in a flow chart an overview of the sequence of an embodiment of a method according to the invention in conjunction with FIGS. 1-11.
  • a first step 1.0 the system is initialized or, if a run has already taken place, old values can optionally be kept.
  • data is loaded, if not existing or if the situation has changed.
  • the data source may be located on one or more servers or stored locally on the device or encoded as information in the environment (e.g., via RFID or QR codes). If a very large number of POIs are stored in the data source, the number can be limited by the position and the definition of a radius 3.
  • spatial features For example, modern database systems with spatial features or properties (“spatial features") offer such functionality, and in principle, POIs can be filtered out with filters already defined in this step by the user, for example, only catering or no catering. POIs which carry corresponding information are then sorted out, and it is clear to the person skilled in the art that a corresponding data structure can be stored for a POI, for example its position, its 2D or 3D shape, an image and / or or further meta-information, such as the category, for example, the POIs are then organized according to the invention in steps 3.0 - 6.0, after which they can be visually processed and displayed, after which interaction with the illustrated POIs is possible explained in more detail by way of example.
  • FIGS. 13-18 relate to possible sub-steps of the general method steps shown in FIG. In principle, these steps can be performed per run or in the background, at certain intervals, depending on the performance of the system.
  • a fundamental aspect of the invention is that superimposed virtual information (here: POIs) in tightly configured or automatically calculated, different areas of a view are classified in the real world.
  • Figure 2 shows a view of a possible scenario from a bird's eye view.
  • Different POIs are spatially arranged around the camera. If all these POIs were simply displayed, the screen would quickly become crowded with many objects. Therefore, a division into different areas.
  • the location area 5 is restricted by radius 0. Regarding the radii, it should be said that they do not have to be constant over all angles, but can change depending on the angle (see Fig. 3).
  • the location area 5 shows objects that are in the immediate vicinity, so that it is difficult for the user to retrieve them with the device.
  • the findability is particularly dependent on the accuracy of the detectable pose.
  • the radius 0 can advantageously be set larger or smaller as a function of the (uncertainty of) the pose determination (FIG. 13).
  • FIG. 4 shows possible elements of an exemplary view of the real environment with inserted virtual information (here: POI objects) for forming an embodiment of a user interface according to aspects of the invention.
  • FIG. 4 shows an advantageous distribution of the user interface.
  • POIs in the location area 5 are fixedly arranged in the lower area of the view 1 and can be selected, for example, by mouse click or touch by means of a touchscreen.
  • FIG. 6 shows a possible indication as a result of the activation of an exemplary POI23. If present, an image P23 of the exact location of POI23 may be displayed for guidance. If available, an additional preview V23 ("Preview") of the stored information can be displayed POI objects that are outside of the location area 5 but are within sight are placed in close proximity 3.
  • Preview an additional preview V23
  • the near zone 3 is bounded by the radii 0 and 1 (FIG. 2).
  • FIG. 14 shows a possibility for calculating the radius 1.
  • the meaningful visibility of POI objects plays a role. If the representation of a POI were only 2 mm in size (sample value), it would bring little benefit, but only cause disorder in the display.
  • the resolution of the display the size of the POI (the representation of, for example, a dinosaur allows a larger radius 1 than the representation of a large ball), and the aperture angle of the camera.
  • the radius 1 can be further adjusted if too many POIs fill the screen (referred to as a global approach).
  • the calculation can refer to the total aperture angle of the camera or even a larger area. It is also possible to set smaller sectors individually. The sectors may e.g.
  • step 6.2 in Fig. 16
  • An example method could be performed as follows: The center of gravity is calculated for each cluster. This will draw a straight line. Now straight lines, which have a small angle to each other, summarized. Each resulting line is aligned to integer angles and assigned a sector. The size of the sectors is then rounded and iteratively magnified in integer angular increments until they come in contact with a neighboring sector. If the sectors are determined by clusters or by fixed settings, the number of POIs of a sector is counted in step 4.2. If this is above a certain configurable limit value, the radius is reduced until it falls below the limit value (step 4.3).
  • individual POIs can also be moved into the far-end area 4 without adjusting the radius (referred to as a local approach) if POIs in the Overlap display.
  • the 2D position and extent of the POIs, corresponding to the rendering pipeline are calculated in step 4.4.
  • a rendering pipeline a person skilled in the art understands the projection of objects in 3D space onto a smaller-dimensional display. In the near range, this happens, for example, depending on the position, orientation, opening angle of the camera and resolution of the 2D display area that is available to the near range.
  • the rendering pipeline projects to a line.
  • step 4.5 This designation may be preserved for a rendering run (step 1.0-9.0 of FIG. 12) or may be retained longer (for example, 3 seconds or 5 rendering runs).
  • the system can continue with steps 4.4 and 4.5 until no overlaps occur or fall below a certain value.
  • There can also be a tolerance as to when an overlap is considered as such (eg more than 10% of the sum of the area of both objects as intersection).
  • the global can also be combined with the local approach.
  • the far-end area 4 contains POIs which have been displaced from the near area or which lie outside the radius 1 in the sector. But even here it does not necessarily make sense to represent all existing POI objects. Therefore, advantageously, a radius 2, similar to radius 1, can be calculated, as shown in FIG. Since radius 2 should in particular still display POI objects which lie within the range of the user, advantageously the current speed or the average speed of the user or the distance which the user can travel by public transport, vehicle or bicycle or the like Time can be used to calculate radius 2.
  • the ability to calculate which depends on these factors Objects can be represented by AR, can also be used independently of the other claims of the invention.
  • the POI object is then permanently stored, e.g. displayed in close range 3.
  • FIG. 4 shows a possible exemplary representation for POIs in different areas.
  • POIs in the location area 5 below are displayed in a uniform size immobile and initially independent of the viewing direction.
  • POI objects in the vicinity 3 are superimposed according to the pose, the camera parameters and the model properties three-dimensionally and in perspective correctly the environment 40.
  • POI objects in the far-end area 4 are advantageously displayed in a uniform size and advantageously move in accordance with the orientation of the device (in particular the presentation device) so that a vertical line downwards would hit the corresponding assigned real location.
  • symbols can still be displayed on the right and left edge 6, which point to POI objects outside the opening angle of the camera.
  • An arrow 8 can give an indication of direction, so that if you move the device along the direction of the arrow around the viewer, the POI object would enter the field of view.
  • These edges 6 may exist for each area (FIG. 4) or, for example, only for the near area 3 (FIG. 5).
  • Short range 3, far range 4, and / or location range 5 may optionally be hidden, especially if no virtual information is presented therein. This can also be done automatically if there is no POI in these areas ( Figure 7).
  • a point of interest (POI) may be represented by a symbol, an image, an SD object, or the like.
  • the presentation is the use of a 3D rendering technology (like the well-known OpenGL or DirectX) with 3D objects, the rendering of so-called billboards (2D objects, which are always facing the viewer) or so-called 2D overlays with 2D Rendering techniques possible whose projection is calculated independently.
  • the presentation can be based on the category of the POIs (eg a globe for the representation of a website) or determined by the user (eg the placement of a dinosaur with additional information).
  • the POIs can be colored in a high contrast.
  • POIs may be provided with additional information that is differently detailed (hereinafter exemplified by POIl).
  • the lowest level of detail is just the POI.
  • the next step is to display labels (see Label Ll) ( Figure 10, left), which, for example, display a descriptive text about the associated POI object.
  • the next stage is the so-called preview (see Vl or picture Pl in Fig. 11) (e.g., an image or a rendering of the website or an info text).
  • Some POI objects can then be examined in more detail in a next step (see Information II). This can also trigger the activation of a separate program of the operating system, such as starting an Internet browser or a media player.
  • the POIs can be displayed simultaneously with their additional information or only by activation. It can also advantageously be determined which POI object is closest to one another, and only the foremost POI objects first display labels at a certain distance, and previews automatically when approaching.
  • the display can also be controlled by so-called eye tracking.
  • the POIs that the user views are displayed with additional information.
  • the additional information can advantageously be anchored immovably in the view and be connected by means of a dynamic connection with the mobile POI representation. This increases the readability of the information.
  • the use of eye-tracking to activate additional information about a POI in AR can also be used independently of the method according to claim 1.
  • a perspectively correct 3D rendering of the POI object takes place (in particular in the proximity region 3 when a region is divided).
  • the standard POI objects have a fixed size in order to be able to estimate the distance to them continuously.
  • weather data can advantageously be queried online.
  • different levels of complexity are conceivable for processing.
  • the simplest technical implementation is the setting of the fog settings in OpenGL.
  • a part of a virtual object can be changed by fog, while another part is clearly displayed. This is to prevent, for example, when using the technology in a vehicle important POI information disappear completely through fog.
  • this can be realized, for example, by a second rendering pass, which takes into account only certain materials but does not represent fog.
  • the state of the sun or of the moon can additionally be calculated on the basis of the position, the date and the time, and set to set the light sources.
  • the shadows can be precomputed textures (advantageously with a transparency value) located below the POI on the ground level, depending on the position of the sun or moon, where the line between the sun or moon and POI intersects the ground plane (exceptions, if that not the case). If the sun or moon are visible at the same time, the sun is used for the calculation.
  • the shadows may also be dynamically calculated as known in the art. This may advantageously involve the mutual shading of POIs. If a 3D model of the environment exists (see also step 7.4 in FIG. 17, eg in the form of a model for masking a real object, so-called "occlusion geometry"), this can be used in addition to the realistic calculation of the shadow situation, for example by shadows POIs raises (see also Figure 9)
  • the reality level of the overlay can be further increased by the materials are enriched by images of the environment of the POI.
  • environment maps environment maps
  • step 7.4 another step is taken to strengthen the depth perception of the viewer.
  • occlusion geometry so-called "occlusion geometry”
  • the hidden part may be displayed semi-transparently, with dashed lines or other colors, and advantageously also the shadows are not calculated and displayed.
  • the depth model may be deposited or generated dynamically by SLAM algorithms, stereo cameras or a Time Of Flight camera In this case, depth information per pixel is sufficient
  • the camera parameters are generated for a correct overlay in the near range (this need not be constant), which can be generated dynamically, for example by means of a SLAM mechanism or according to the device name of server be retrieved or stored in the program.
  • the results of the sea-through calibration or a dynamic measurement of the position of the eye are used for the display.
  • the camera image can be processed so that only the most important image components are displayed in high contrast. This only makes sense in video sea-through mode and should help users make the mapping, especially in very bright ambient light.
  • the video image can be revised, for example, by means of the Sobel operator for edge extraction.
  • this mode can be switched on and off in bright outdoor light, for example when the device contains a brightness sensor.
  • the parameters of the pose are now additionally made available to the rendering system if this was not already necessary for the calculations in steps 3 to 6 of FIG. Now, depending on the hardware capabilities of the system in step 7.8, everything can be represented and calculated.
  • Step 7.8B the calculation of the correct material surfaces can also be done on the server side (Step 7.8B) or the overall picture on the server side.
  • a modern GPU Graphic Processor Unit
  • step 7.8A many possibilities are known to the expert.
  • POIs can also be combined, as shown in FIG. 16, bottom left.
  • the points of a cluster form a new, differently shaped POI. This can be done individually in the close range 3, in the location area 5 and in the distance range 4 or can already be done before the allocation.
  • this can only be done with POIs of a category (e.g., Web sites only).
  • POIs in the forefront can be excluded from this process. INTERACTION WITH POIs
  • FIG. 18 shows possible interaction possibilities with POIs according to aspects of the method according to the invention.
  • the user can already change the section to the virtual information and the reality by changing his location or the viewing direction. This can also trigger automatic interaction, as already described in "Appearance of Objects.”
  • the device is equipped with a touch screen or a kind of mouse control (eg a trackball)
  • it is basically possible to select POIs directly POI object the individual POIs are now arranged to be selectable and the labels are displayed (step 9.8) Otherwise, if not yet displayed, the label is displayed (step 9.9)
  • the info text or preview is displayed if it is not already displayed (step 9.11)
  • Re-activation triggers the detail display, step 9.13 for POIs that have stored the information (eg playing a movie, music or viewing a website).
  • this display can be closed. Alternatively, you could possibly run this
  • the interaction can also be carried out by means of the target cross 7 shown in FIG. 7 (optional), as described in FIG. 18 in steps 9.5-9.7.
  • the next detail level is activated there (label if only POI visible, preview, if label visible).
  • the system can also activate the POI closest to the user interface to the crosshairs. Long aiming at a POI or pressing a button activates the next level of detail.
  • the user points the camera upwards until he has exceeded the highest POI in the vicinity 3 by a threshold (e.g., 10 degrees).
  • a special feature in the location area 5 is that a POI, if specified or automatically created, there in addition to the POI detail information is given an image of the place to facilitate finding (see preview V23 and Figure P23 for the POI23 in Figure 6).
  • the image can be entered manually or automatically created using an image database containing pose information.
  • the selection of a POI can optionally also be done by voice control. To do this, the user activates control over a particular set (e.g., "activate voice control"), whereupon each POI is identified with a number, and then, by pronouncing the number, that POI can be activated.
  • a particular set e.g., "activate voice control”
  • the system can be activated by further pointing down a card mode.
  • an acoustic signal is triggered immediately when changing the POI or when triggering an interaction.
  • a haptic signal for example a slight vibration
  • a map mode may be opened centering the map at the POI location.
  • a navigation to this POI can be started by a special interaction.
  • the virtual information (e.g., POIs) may be superimposed on the real-world view in the remote area 4 in a uniform size.
  • the virtual information is displayed differently than when it is displayed in the proximity area 3.
  • the virtual information can be included in the view of the real environment in the location area 5 immovable, especially in a uniform size and / or regardless of the orientation of the display device, are displayed.
  • the plurality of virtual information can be selected from a group of virtual information that together form a cluster, wherein the virtual object is shaped differently compared to the virtual information.
  • a geographical map and / or a bird's-eye view can be superimposed on the display device if the display device is held approximately horizontal to the earth's surface or if more than one specific angle is kept below the lowest POI in the near zone or if this function is already used to achieve the Location area is occupied, is held further below.
  • a respective boundary, in particular its radius, between the areas can be changed if virtual information from the user of one of the areas rich, for example, the near area, in another of the areas, such as the long-range, and / or vice versa is transferred.
  • the boundary in particular its radius, can also be calculated as a function of the number of multiple virtual information within a particular sector of the view.
  • the boundary in particular its radius, can also be calculated as a function of the two-dimensional density of a plurality of virtual information within a particular sector of the view.
  • the limitation in particular its radius, can also be calculated as a function of a plurality of virtual information items which together form a cluster.
  • a shadow in the vicinity of a ground plane represented in the presentation device, which corresponds to the position of the virtual information, can be displayed in the display device below the virtual information.
  • a video display device may be used in which the view of the real environment is enriched by an edge image or replaced to enhance the contrast.
  • the user may be given acoustic and / or haptic feedback in an input device used for selection in a user action to select virtual information or switch between multiple virtual information.
  • depth information relating to at least one real object included in the view may be calculated or loaded, wherein the depth information may be used Masking model for concealing a real object in the display device when virtual information is obscured by the real object to be hidden in the view. Such depth information can also be used to calculate a boundary between areas, eg between near and far. Furthermore, a number can be assigned to a plurality of virtual information displayed in the display device, wherein the corresponding virtual information can be selected by voice recognition of the number or selection of the number on a keyboard or a touch-sensitive input field.
  • multiple virtual information can each be assigned to one of several categories, whereby the virtual information can be shown and / or hidden depending on the category.
  • an edge 6 can be displayed, which indicates a range of the proximity area 3, wherein a limitation of the near area can be changed by a user action, in particular by dragging the boundary.
  • the virtual information can be displayed in at least three stages.
  • a first stage has a body (eg a 2D body or SD body)) as merely a local indication of the virtual information (cf. POIl in FIGS. 10, 11)
  • a second stage has an indication of the virtual one Information in the form of a labeled label (see Label L1 in Fig. 11)
  • a third stage has an abstract-like preview of the virtual information (see Preview V1 and picture P1 in Figures 10, 11), which are particularly shown becomes when a user action selects the dot-like display or the label.
  • a fourth stage may represent the full length information (see Information II of Fig. 10).
  • One embodiment may provide that in a first part of the long range 4 virtual information is displayed only in the first stage, in a second part of the long range 4 with real objects placed closer to the display device than in the first part of the long range and in a first part of the short range 3 virtual information is displayed in the second stage, and in a second part of the short range 3 with closer than in the first part of the short range at the Representation device placed real objects the virtual information is displayed in the third stage.
  • a boundary between the near range and the far range, in particular a radius of the limit, depending on a size of the displayed virtual information, a resolution of the display device and / or a resolution of a camera, which is used to generate the view is calculated , Furthermore, the boundary of the location area can become larger with an increased measurement uncertainty of the position detection.
  • the limitation which may be, in particular, a radius and determines which objects are to be displayed at all, may be based on the current speed or the average speed of the user or the distance which the user uses by public transport, vehicle or bicycle or the like certain time can depend.
  • the system may overlay virtual information with reality, taking into account, in the display of virtual information in a view of a real environment, weather data, e.g. queried over the Internet ("online") to increase the level of realism of visual information displayed in relation to the real environment and thus to improve the allocation
  • weather data e.g. queried over the Internet
  • online Internet

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Abstract

L'invention concerne un procédé de visualisation ergonomique d'une information virtuelle dans un environnement réel, comportant les étapes suivantes: préparer au moins une vue d'un environnement réel et élaborer un système pour superposer une information virtuelle sur l'environnement réel dans au moins une partie de la vue, le système comportant au moins un dispositif de visualisation; déterminer une position et orienter au moins une partie du système relativement à au moins une partie de l'environnement réel; subdiviser au moins une partie de la vue de l'environnement réel en plusieurs zones comprenant une première zone et une deuxième zone, des objets de l'environnement réel à l'intérieur de la première zone étant plus proches du système que des objets de l'environnement réel à l'intérieur de la deuxième zone; afficher au moins une information virtuelle sur le dispositif de visualisation dans au moins une partie de la vue de l'environnement réel en tenant compte de la position et de l'orientation de la partie ou des partie du système, l'information virtuelle étant représentée différemment dans la première zone et dans la deuxième zone quant au mode d'affichage dans la vue de l'environnement réel.
EP10744693A 2009-08-18 2010-08-13 Procédé de visualisation d'une information virtuelle dans un environnement réel Ceased EP2467833A2 (fr)

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DE102009037835A DE102009037835B4 (de) 2009-08-18 2009-08-18 Verfahren zur Darstellung von virtueller Information in einer realen Umgebung
PCT/EP2010/061841 WO2011020793A2 (fr) 2009-08-18 2010-08-13 Procédé de visualisation d'une information virtuelle dans un environnement réel

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WO2011020793A2 (fr) 2011-02-24
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CN104731337A (zh) 2015-06-24
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US20200242846A1 (en) 2020-07-30
US20230290083A1 (en) 2023-09-14
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