EP1550992A1 - Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter - Google Patents

Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter Download PDF

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Publication number
EP1550992A1
EP1550992A1 EP03104986A EP03104986A EP1550992A1 EP 1550992 A1 EP1550992 A1 EP 1550992A1 EP 03104986 A EP03104986 A EP 03104986A EP 03104986 A EP03104986 A EP 03104986A EP 1550992 A1 EP1550992 A1 EP 1550992A1
Authority
EP
European Patent Office
Prior art keywords
images
series
viewers
frame
screen
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.)
Withdrawn
Application number
EP03104986A
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English (en)
French (fr)
Inventor
Mao Xiaogang
Liya Hu
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.)
Howtech Bv
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Individual
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 Individual filed Critical Individual
Priority to EP03104986A priority Critical patent/EP1550992A1/de
Publication of EP1550992A1 publication Critical patent/EP1550992A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • G09F2019/221—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated on tunnel walls for underground trains

Definitions

  • the invention relates to a new and improved system for visualizing one or more relatively still or animated images to one or more viewers in motion, especially for displaying traffic information or advertisements to the passengers on a train traveling in a subway tunnel.
  • the invention further relates to a method of visualizing one or more images to one or more viewers in motion.
  • Prior art includes a sequence of individual image frames mounted beside railway tracks, and a sequence of still images fixed or projected on the corresponding frames.
  • the said still images differ slightly in sequence, such that when a viewer passes by the still images one after another, he perceives an animated image.
  • This principle of creating an animation is just the inverse of the principle of conventional movies: the images are still but the viewer moves.
  • Such prior art is represented by U.S. Pat. Nos. 742,632; 978,854; 2,913,954; 3,653,753; 3,694,062; 5,108,171; 6,016,183; 6,564,486 B1, etc.
  • the interval between two adjacent frames must be predetermined with respect to a constant speed. If a vehicle speed is too slow compared to the constant speed, a viewer on the vehicle can only see a series of individual still images without animation effect. If a vehicle speed is too fast, the images turn into a blur to the viewer.
  • a train is slowing down to stop at, or speeding up to leave from, a train station, its speed is slow and not constant. In this situation, the known prior art cannot generate a continuous animation from a sequence of still images to the viewers on a moving train, although the sites in the neighborhood of train stations are crucial for displaying the traffic information and advertisements.
  • the still images are fixed on the frames, so it costs a lot of work and money to renew the images.
  • This object is achieved by providing a system for visualizing one or more images to one or more viewers in motion, comprising:
  • each frame of original image is divided into a number of sub-images.
  • the dividing lines are shifted backward with respect to the measured velocity of the viewer.
  • the said series of original images are split into a number of series of shifted sub-images.
  • each series of sub-images are separately projected on the said screen by one of the corresponding projectors.
  • one or more complete images are displayed on the screen, and the display positions move forward in synchronism with the viewer. If each series of original images are substantially the same, the moving viewer perceives a relatively still image on the screen. If each series of original images are slightly different one after another, the moving viewer perceives an animated image on the screen.
  • a system for visualizing one or more still or animated images to one or more viewers in motion comprising:
  • the present invention Besides visualizing an animated image on a screen by a sequence of projectors, the present invention thus also makes it possible to visualize an animated image direct on a sequence of adjacent electronic displaying panels, such as LED or LCD, etc.
  • the present invention it is possible to display up-to-date traffic information by linking the apparatuses to the railway control network, and also possible to receive and display television programs with extra apparatuses such as a satellite dish.
  • the present invention uses the principle of conventional movies to generate an animated sub-image separately by each projector.
  • the invention also provides a method of visualizing one or more images to one or more viewers in motion, comprising:
  • a method of visualizing one or more still or animated images to one or more viewers in motion comprising:
  • This invention relates to a new and improved system for visualizing one or more relatively still or animated images to one or more viewers in motion, especially for displaying traffic information or advertisements to the passengers on a train traveling in a tunnel.
  • the present invention uses the principle of conventional movies to generate an animated image and uses a new and improved method to make the display position of the animated image move on an extended span of screen in synchronism with a viewer in motion.
  • the apparatuses of the present invention comprise a center computer 111 with an image database 112.
  • An extended span of screen 13 is mounted on a sidewall of a subway tunnel, and another screen could be mounted on another sidewall of the said tunnel if necessary.
  • a sequence of projectors 121-12n are mounted on the ceiling of the tunnel along the screen 13, which are connected to the center computer 111. It is also possible to use a transparent screen and install the said projectors 121-12n behind the transparent screen.
  • a sensor 17 is installed at one end of the screen 13 beside the rail tracks for detecting the position and the velocity of an approaching train. The sensor 17 is also connected to the center computer 111.
  • the computer 111 could be connected to the center control station 18 of the railway network, such that it can receive up-to-date traffic information.
  • the computer 111 could also be connected to a satellite dish 19 so that it can receive the television programs via satellite.
  • Fig. 2 schematically shows the progress of processing, transforming and displaying images on a screen to the viewers in a moving vehicle.
  • the sensor 17 for instance, emits a radar signal or an infrared signal.
  • the sensor 17 receives a signal reflected by an approaching vehicle, e.g. train 16, the sensor 17 calculates the position and velocity of the train 16 and sends a message to the center computer 111.
  • the center computer 111 divides each original image into a number of sub-images and shifts the dividing lines on each frame of original image according to a function of the velocity of the train 16.
  • Fig. 3 schematically shows the progress of processing, transforming and displaying images on a screen to the viewers in a moving vehicle.
  • the sensor 17 for instance, emits a radar signal or an infrared signal.
  • the sensor 17 calculates the position and velocity of the train 16 and sends a message to the center computer 111.
  • the center computer 111 divides each original image into a number of sub-images and
  • the computer 111 transmits the processed sub-images to the corresponding projectors 121-12n.
  • Each projector 12n independently projects a corresponding series of sub-images on the screen 13.
  • a sequence of complete images 141, 142, etc. are displayed on the screen 13, whose display positions are moving on the screen 13 in synchronism with the train 16.
  • the center computer 111 sends the synchronous soundtrack to the train 16, such that the viewers on the train 16 can listen to the soundtrack corresponding to the displayed images via broadcast or headphone.
  • Fig. 3 schematically shows the geometry and optics, as an example of the present invention, for displaying an image on a screen moving in synchronism with viewers in a moving train carriage.
  • a two-dimensional Cartesian coordinate system X-O-Y is made as shown in Fig. 3, wherein the x-direction is the same as the direction of V 33 and y-direction is upwards.
  • a series of original images 311, on which there is a racing horse with a rider on its back, have the same width of W 0 and height of H 0 .
  • the first frame in series 311 is divided into three sub-images 31a-31c with the same width of W 1 and height of H 1 .
  • the dividing lines 312 are shifted backward with a horizontal displacement - ⁇ x in the opposite direction of the train velocity v 33 .
  • each series of sub-images 32a-32c is transformed into series of sub-images 33a-33c.
  • the sub-images 33a-33c have the same sizes but inverse directions as the sub-images 32a-32c.
  • each series of sub-images 33a-33c is separately projected on the screen 351 through the corresponding lenses 34a-34c of the projectors.
  • the sub-images 352a-352c displayed on the screen 351 combine in a complete frame 352, and the position of the display frame 352 moves forward with a horizontal velocity v 32 relative to the fixed screen 351.
  • the width and height of the displayed sub-images 352a-352c as well as the velocity v 31 and v 32 satisfy the following equations, where f is the focal length of the lenses 34a-34c, L 1 is the distance form the center horizontal axis of sub-images 33a-33c to the center of the lenses 34a-34c, L 2 is the distance from the center of the lenses 34a-34c to the center horizontal axis of the screen 351, W 1 and H 1 are the width and height of the sub-images 33a-33c, W 2 and H 2 are the width and height of the displayed sub-images 352a-352c. If the shifting velocity v 32 of the display frame 352 equals the velocity v 33 of the train 36, then the display frame 352 moves on the screen 351 in synchronize the
  • the display frame 352 has a corresponding shifting velocity v ' 32 as follows,
  • the formula (7) shows that the display frame 352 has a small velocity difference - L 2 / L 1 ⁇ t ⁇ ( x,y ) relative to the train 36.
  • the train windows 361a-361d act as view windows roving on the display frame 352 with a relative velocity L 2 / L 1 ⁇ t ⁇ ( x,y ).
  • Selecting a suitable function ⁇ ( x,y ) then all the viewers 362a-362d at the different positions of the train 36 can see the whole display frame 352 roving on the fixed screen 351 through the windows 361a-361d.
  • Fig. 4 schematically shows an example of displaying a series of relatively still images 43n on the screen 41 to a viewer 42 moving with a horizontal velocity v 4 ( t n ).
  • the displayed images 431-43n are the same, except that each frame of image is shifted forward on the screen 41, frame by frame, according to the velocity v 4 ( t n ) of the viewer 42.
  • the display positions of image 431-43n move forward on the screen 41 in synchronism with the viewer 42, so the viewer 42 perceives a relatively still image 43n on the screen 41.
  • Fig. 5 schematically shows an example of displaying a series of animated images 531-53n on the screen 51 to a viewer 52 moving with a horizontal velocity v 5 ( t n ).
  • the velocity v 5 ( t n ) of the viewer 52 increases in time
  • the images 531-53n differ slightly in sequence. When the images 531-53n are displayed on the screen 51 one after another and the display positions move forward on the screen 51 in synchronism with the viewer 52, then the viewer 52 perceives an animated image 53n on the screen 51.
  • the present invention uses the principle of conventional movies to display an animated sub-image on a screen separately by each projector, so the generation of animation effect is independent of the moving velocity of the viewer. Therefore, it is possible for the system of the present invention to display a continuously animated image to a viewer moving with an arbitrary velocity. Besides visualizing an animated image on a screen by a sequence of projectors, the present invention is also possible to visualize an animated image direct on a sequence of adjacent electronic displaying panels, such as LED or LCD, etc. Using the present invention, it is possible to display up-to-date traffic information by linking the apparatuses to the railway control network, and also possible to receive and display television programs with extra apparatuses such as a satellite dish.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
EP03104986A 2003-12-29 2003-12-29 Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter Withdrawn EP1550992A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03104986A EP1550992A1 (de) 2003-12-29 2003-12-29 Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03104986A EP1550992A1 (de) 2003-12-29 2003-12-29 Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter

Publications (1)

Publication Number Publication Date
EP1550992A1 true EP1550992A1 (de) 2005-07-06

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EP03104986A Withdrawn EP1550992A1 (de) 2003-12-29 2003-12-29 Anzeigevorrichtung zur Darstellung von Bildern an bewegliche Beobachter

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011029935A3 (en) * 2009-09-14 2011-06-30 Spectrum Motion Media Ltd Display apparatus and a method for the same
WO2012019769A3 (en) * 2010-08-12 2012-04-05 Babak Taherloo Echo light complex
US20150073914A1 (en) * 2013-09-10 2015-03-12 Utechzone Co., Ltd. Playing method and electronic apparatus information
CN109767709A (zh) * 2019-02-14 2019-05-17 宁波大红鹰学院 一种视觉交互式广告系统
CN109817120A (zh) * 2019-02-14 2019-05-28 宁波大红鹰学院 一种数字互动景观系统
CN113393783A (zh) * 2021-06-03 2021-09-14 北京交通大学 一种地铁隧道用自动跟踪移动广告系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02201489A (ja) * 1989-01-31 1990-08-09 Mitsubishi Rayon Co Ltd 表示装置
EP0386269A1 (de) * 1988-09-02 1990-09-12 TOKIMOTO, Toyotaro N-dimensionale anzeigeanordnung von abtastungstyp und gerät
WO1994007233A1 (en) * 1992-09-11 1994-03-31 Tunnelvision Ab Method to provide a display of pictures and means for this
GB2317985A (en) * 1996-09-10 1998-04-08 Timothy Robert Kermode Cowin Display means
WO2003041038A1 (en) * 2001-11-05 2003-05-15 Train Russell H Animation display process and assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386269A1 (de) * 1988-09-02 1990-09-12 TOKIMOTO, Toyotaro N-dimensionale anzeigeanordnung von abtastungstyp und gerät
JPH02201489A (ja) * 1989-01-31 1990-08-09 Mitsubishi Rayon Co Ltd 表示装置
WO1994007233A1 (en) * 1992-09-11 1994-03-31 Tunnelvision Ab Method to provide a display of pictures and means for this
GB2317985A (en) * 1996-09-10 1998-04-08 Timothy Robert Kermode Cowin Display means
WO2003041038A1 (en) * 2001-11-05 2003-05-15 Train Russell H Animation display process and assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0144, no. 94 (P - 1123) 26 October 1990 (1990-10-26) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011029935A3 (en) * 2009-09-14 2011-06-30 Spectrum Motion Media Ltd Display apparatus and a method for the same
WO2012019769A3 (en) * 2010-08-12 2012-04-05 Babak Taherloo Echo light complex
EP2418639A3 (de) * 2010-08-12 2012-10-31 Babak Taherloo Echolichtkomplex
CN103038807A (zh) * 2010-08-12 2013-04-10 巴巴科·塔赫卢 回音灯光复合体
US8472865B2 (en) 2010-08-12 2013-06-25 Babak Taherloo Echo light complex
CN103038807B (zh) * 2010-08-12 2014-06-18 巴巴科·塔赫卢 回音灯光复合体
US20150073914A1 (en) * 2013-09-10 2015-03-12 Utechzone Co., Ltd. Playing method and electronic apparatus information
CN104424585A (zh) * 2013-09-10 2015-03-18 由田新技股份有限公司 播放方法及电子装置
CN109767709A (zh) * 2019-02-14 2019-05-17 宁波大红鹰学院 一种视觉交互式广告系统
CN109817120A (zh) * 2019-02-14 2019-05-28 宁波大红鹰学院 一种数字互动景观系统
CN109767709B (zh) * 2019-02-14 2020-06-30 宁波财经学院 一种视觉交互式广告系统
CN113393783A (zh) * 2021-06-03 2021-09-14 北京交通大学 一种地铁隧道用自动跟踪移动广告系统

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