JPH0146801B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting the dimensions of an object, particularly the dimensions of a human body for dressing, from a photograph, in which the photograph of the object or the person is oriented in different directions. The image is taken along with the mesh scale.

In a known method (German Patent No. 1034375), a person to be dressed is placed in front of a board with marking lines and a photograph is taken, during which a tape scale is attached to the person. Being photographed. After the exposure has been completed, a plate with a mesh scale is now used, the plane of which is aligned with the line marked on the floor. This marked line represents the midsection of the person standing in that position. Then, without changing the position of the camera, the mesh scale is photographed again on the same plate or on the same film, superimposed on the previously photographed human image. In this way, a photograph of a human being superimposed on the mesh scale is obtained. In a similar manner, a person is photographed from three different directions.

The method described above is a time consuming method.
This is because imaging must be performed at least twice in one direction. That is, if the back and side images are combined, four images are required. Furthermore, moving the board requires great attentiveness on the part of the operator and is a time-consuming task. However, this method is not particularly suitable for detecting physical defects such as curvature of the spine or protrusion of the shoulder blades.

It is an object of the invention to provide a method by which the dimensions of an object can be obtained in an essentially simple and rapid manner. In particular, it is an object of the present invention to provide a method that makes it possible to accurately measure the curvature of an object surface.

The above object is achieved in a method of the type mentioned at the outset as follows. That is, according to the present invention, an image of the mesh scale is first formed, and then, superimposed on this image, the object to be measured is photographed together with a pattern of horizontal lines attached to the mesh scale by a light beam incident obliquely from above. This is achieved by

In particular, the following is taken into account: That is, in one half of the photograph, the object or person is first photographed from one direction, and in the other half, the mesh scale is photographed, then the mesh scale and the object or person are placed in a different position, and This arrangement is photographed overlapping the first photograph.

The method of the invention requires two exposures for imaging from two directions and is therefore inherently more economical than the known methods described above. However, an important feature of the invention is that the pattern of lines projected onto the surface of the object or person makes the raised or depressed parts of the object visible and measurable, i.e. the third dimension is discernible. It is becoming possible to do so. The dimensional factors are the spacing of the lines as well as the direction of curvature.

In particular, a line pattern is projected each time from the front center onto the surface of the object or the person to be clothed.
The exact shape of the surface of the object or person is detected from the running course of the line pattern and the spacing between the line patterns. It is particularly advantageous for the projection of the line pattern to be performed using a flash projector which is photoelectrically coupled to the flash of the camera.

Although it is possible to adopt almost any projection angle between 0° and 90° with respect to the vertical line, the line pattern can be projected at a projection angle of 30° to 60° with respect to the vertical line. Or it is intended to be projected onto the human surface. When the projection angle is within the above range, the unevenness is particularly noticeable. The pattern of lines is projected onto the surface of an object or person in such a way that they are equally spaced from each other when projected onto a vertical wall. Image distortion is removed in this way. It turns out that in order to clothe a human, it is only necessary to photograph the back and sides. The method according to the invention makes it possible to accurately detect the dimensions, and the image of the front part can usually be omitted.

The invention furthermore relates to a device for carrying out the above method, which device differs from known devices in the following respects. That is, the difference is that a flash projector that projects a line pattern diagonally above the object or person to be photographed is placed between the camera and the board. Advantageously, the plate is pivotable by at least 180° about a vertical axis, the camera is directly facing the pivot axis, and the plate is capable of being photographed in both swiveled positions. . In addition to the features already mentioned above, such a device is characterized by its simple construction and by the fact that it can be operated even by untrained personnel.

Advantageously, a transparence carrying a line pattern is placed inside the flashlight. This transparency can be quickly replaced with another type of line pattern if necessary.

Advantageously, the flashlight is arranged so as to be parallel to the camera and, in the photographic position, is emitted from a particularly central position. In this way, no optical distortions occur and the surface of the object or person is best represented.

In order to easily transport the flashlight to both of its photographic positions, the flashlight is movable parallel to the plate. For this purpose, rails are used, and the flash projector is suspended on the rails via rollers.

The flashlight is connected to the plate by a particularly advantageous configuration of the device according to the invention and is movable along said rail when pivoting the plate.
Therefore, only one manual operation is required to pivot the plate and move the flashlight. Furthermore, such an embodiment ensures that the flashlight is exactly in the photographic position after pivoting the plate.

In order to reduce the noise and impact of transporting the flashlight, an endless belt is used that is guided through two rollers along the rail.
A flashlight projector is coupled to the belt, and at the position of the belt furthest from the flashlight projector is articulated a retractable rod like a telescope tube, which tube is also articulated to a plate.

Such a structure is prone to failure during use and cannot guarantee that the line pattern will be projected from the same position every time. Such devices are not fully satisfactory when performing comparative measurements, such as measuring changes in the dimensions of objects.

Therefore, according to an advanced idea of the present invention, for photographing an object or a person from two directions, two separate fixedly installed cameras projecting toward a fixed point are provided.
A flash projector is provided which projects a pattern of lines while the image is being taken. This keeps the angle of incidence of the line pattern constant and thus makes it possible to obtain accurate measurement results.

In order to avoid optical distortion of the line pattern and equalize the spacing of the projected lines on the vertical plane, the flash projector possesses a corrected optical lens system, in which the flash light source is The lens facing the is tilted with respect to the optical axis of the system.

According to a particularly advantageous embodiment of the device according to the invention,
A transparency with a pattern of lines has several rows of dots running vertically, with at least one dot placed between each two lines, the spacing between the rows of dots being: It is at least twice the line spacing and at most five times as large. When projected onto the oblique surface of an object or person, not only dots but also vertically running lines are formed, which make the representation of the object or person's surface more precise. The spacing of the dots as described above is sufficient without cluttering the image.

The invention will be explained in more detail in the following description by means of exemplary embodiments which are shown diagrammatically in the appended FIGS. 1 to 4. FIG.

In FIG. 1 (see FIG. 1), the left half shows a human being seen from behind, and the right half shows a side view of a human being. Each half of FIG. 1 shows a mesh scale consisting of a vertical line 1 and a horizontal line 2, the distance between the mesh scales being 1 centimeter from each other. To make it easier to understand the dimensions, numbers are shown on the sides for every 10 centimeters of the dimensions. The ruler 3, which can be moved up and down and can be turned, makes it possible to quickly read the length of the interval.

The line pattern, consisting of lines 4 running essentially horizontally, makes the contour of the surface clear by the different curvatures and line spacings. Thus, for example, a position with a small spacing as indicated by symbol 5 indicates a tilted state of the neck, while a wide spacing of the lines in the position indicated by symbol 6 is due to a slight curvature of the spine. . By evaluating the photograph, it is therefore possible to create a cross-sectional model of the object or to create a matching mounting section for the garment to be made. The photographs show precise behind-the-scenes shapes and reveal three-dimensional dimensions that were previously impossible to measure.

In FIG. 2, symbol 7 indicates a wall, and a mirror 8 that reflects light is attached to the wall. A vertically rising plate 9 approximately in the center between the mirrors 8 is mechanically firmly attached to the wall 7. The ruler 3 can be turned in a horizontal plane and can be displaced up and down. Attached to the free end of the vertical plate 9 is a plate 10, for example by a hinge not shown in detail, which plate can be manually pivoted through 180 DEG. Plate 10 carries on both sides a mesh scale formed by lines 1 and 2.
A camera 11 equipped with a flash device and in particular an instantaneous image recording camera 11
is located at a distance of about 3 meters from the plate 10 and directly opposite the pivot axis of the plate 10. A holding device 12 is fixed to the vertically rising plate 9, which carries at its free end a rail 13, which rail is precisely horizontal. A flash projector 14 is suspended on the rail 13 via a roller (not shown), and the flash of the projector is emitted simultaneously with the flash provided on the camera side. The flash projector 14 is connected in a manner not shown along the rail 13 to an endless belt which is guided via two rollers, which tape moves when the plate 10 pivots. To this end, the plate 10 is pivotally articulated with a tube 15 of telescope-like construction, the other end of which is pivotally connected to the above-mentioned tape. When the plate 10 is pivoted, the telescopic rod 15, which can be retracted like a telescope tube, is first retracted. The component of force perpendicular to the holding device 12 causes the tape to move, thereby causing the flashlight to move from left to right in the figure. At the end of the pivoting movement, the plate 10 reaches the position shown in broken lines. Flash floodlight 1
4 are two end positions, each located directly opposite the center of the plate 10 when the plate 10 is swiveled through 180°. The flashlight projector 14 projects a pattern of lines onto the surface of a person or object by means of a transparency with no details shown. In order to avoid distortion of the line pattern, the flashlight projector 14 is equipped with a special lens system, the lens of which is located opposite the direction of the wall 7 and is tilted with respect to the axis of the optical system. There is. The flash projector 14 is set so that the luminous flux emitted by it is equal to the width of the plate 10 within the range of the plate 10. The photographing range of the camera 11 is approximately twice the width of the board 10. Symbols 16 and 17 indicate footrests for the person being photographed to step on before the photograph is taken.

FIG. 3 is a side view of the arrangement of FIG. 2; From this figure, it can be seen that the flash projector 14 is directed toward the surface of the board 10 at an angle of about 45° between the board 10 and the camera 11, but the pattern of lines projected from the flash projector is within the range of the surface of the board 10. It can be seen that at least the entire height of the plate 10 is covered (range indicated by the broken line). The same can be said about the photographing range of the camera 11 (the range indicated by the dashed dotted line).

The method of the invention is carried out in the following working sequence. That is, as shown in FIG. 2, first, a person stands on the footrest 16 and a photograph is taken. Simultaneously with the emission of the flash of the flash device equipped on the camera 11, the flash of the flash projector 14 is emitted. In the left half of the photograph, a person with the projected line pattern is photographed, and in the right half, the mesh scale of the board 10 is photographed. The plate 10 is then manually pivoted to the position shown in dashed lines. At that time, as mentioned above, the flash projector 14 is connected to the rail 1.
Move from left to right along 3. The rod 15, which is extendable and retractable like a telescope tube, moves from right to left. The person moves to the footrest 17 and once again exposes the dry plate or film inside the camera, thereby superimposing the mesh scale on the person projected by the first exposure and then repeating the first exposure. An image of the side of the person is superimposed on the mesh scale projected by the camera and exposed, and a line pattern is projected onto the side of the person while the image is being photographed.

The method of the invention makes it possible to produce sufficiently accurate dimensions that completely represent the human surface, for example in the back and side areas, in a shorter time than was previously possible. Photographic images produced by the method of the invention are advantageously used for making outer garments such as jackets, trousers, overcoats and the like.

The invention is, of course, not limited to the application of photographic images for making garments as made clear in the description with the accompanying drawings. The invention also applies to measurements of the human body or parts thereof. Thus, for example, it is possible to recognize and measure spinal curvatures, slanted shoulders, slanted hips and other supporting injuries, and in particular to reveal changes after treatment.

A particularly advantageous device is shown in FIG. Instead of the movable flashlight 14, two flashlights are fixed and slid. The flash of the camera 11 is photoelectrically coupled to a flash projector 14a or 14b. The flash projectors 14a and 14b are directed at a fixed angle from above onto the surface of the plate 10. The flash projector projects a pattern of lines onto the surface of the person standing on the footrest 16 or 17, the pattern being formed by a diapositive. The spacing between the line patterns on the transparency is calculated according to the inclination angle of the flash projector so that the spacing between the line patterns projected on the diagonal surface is equal. Flash floodlight 14
a and 14b are operated alternately via contacts not shown but attached to the plate 10. When a person is standing on the footrest 17, the flash floodlight 14b is activated and the person is standing on the footrest 17.
The flash projector 14a is activated when the user is standing at the location.

An important feature of the device described above is that it maintains, by simple means, the angle of incidence of the line pattern constant, thus making it possible to visually and precisely measure the third dimensions of the human body, i.e. curvature, etc. There is a particular thing.

[Brief explanation of drawings]

FIG. 1 is a drawing based on a photograph taken by the method of the present invention, FIG. 2 is a plan view of the apparatus for taking the photograph on which FIG. 1 is based, and FIG.
FIG. 4 is a side view of the device shown in the figure, and FIG. 4 is a plan view showing a modification of the device shown in FIG. In the figure, 10... Board, 11... Camera, 13... Rail, 14, 14a, 14b... Flash floodlight, 15
...It is a rod that can be expanded and contracted like the tube of a telescope.

Claims (1)

[Claims] 1. In a method for photographically detecting the dimensions of an object, especially the dimensions of a human body to be dressed, such as taking photographs of the object or the person to be clothed from various directions along with a grid scale. , first forms an image of the mesh scale, and then superimposes on this image the object to be measured, which is photographed together with a pattern of horizontal lines attached to the mesh scale by light rays incident from diagonally above. How to do it. 2. In the method described in claim 1,
In one half of the photograph the object or the person being dressed is photographed from one direction and in the other half the mesh scale is photographed, then the mesh scale and the object or the person being dressed swap positions and the A method characterized by arranging an object or a person to be dressed so as to face a different direction from the above, and photographing this arrangement overlapping the first photographing. 3. A method according to claim 1 or 2, characterized in that the line pattern is projected each time from the front center onto the surface of the object or the person to be clothed. 4. The method according to any one of claims 1 to 3, including projecting the line pattern using a flash projector that is photoelectrically connected to the flash of a camera. How to characterize it. 5. In the method according to any one of claims 1 to 4, the line pattern is projected onto the surface of an object or human being at a projection angle of 30° to 60° with respect to a vertical line. A method characterized by projecting to. 6. In the method according to any one of claims 1 to 5, the pattern of lines is formed such that when projected onto a vertical wall they are equidistant from each other. A method characterized by projecting images onto the surface of an object or a person. 7. A method according to any one of claims 1 to 6, characterized in that the rear and side parts of the person being dressed are photographed. 8. In order to detect the dimensions of the object, especially the dimensions of the human body to be dressed, by means of photographs, such as taking photographs of the object or the person to be clothed together with the mesh scale from different directions, the image of the mesh scale is first taken. In order to carry out a method in which the object to be measured superimposed on this image is photographed together with a pattern of horizontal lines attached to the mesh scale by a light beam incident obliquely from above, a mesh scale is provided. In an apparatus consisting of a board and a camera installed at a certain distance from the board, a pattern of lines is placed diagonally above the object or person to be photographed between the camera 11 and the board 10. A device characterized in that a flash projector 14 for projecting light is arranged. 9. In the device according to claim 8,
The plate 10 is pivotable by at least 180° about a vertical axis, the camera 11 is directly facing said vertical pivot axis, and the plate 10 is capable of taking pictures in both pivoted positions. A device featuring: 10. Device according to claim 8 or 9, characterized in that a transparencies carrying a pattern of lines are arranged in the flash projector (14). 11. The device according to any one of claims 8 to 10, characterized in that the flash projector 14 is arranged parallel to the camera 11. 12. The device according to any one of claims 8 to 11, characterized in that the flashlight projector 14 faces directly to the center of the plate 10 in each photographic position. 13. The device according to any one of claims 8 to 12, characterized in that the flash projector 14 is movable parallel to the plate 10. 14. The device according to any one of claims 8 to 13, characterized in that the flash projector 14 is movable on the rail 13 via rollers. . 15. In the device according to any one of claims 8 to 14, the flash projector 14 is connected to the plate 10 and the plate 1
A device characterized in that it is movable along a rail 13 when turning around 0. 16. The device according to any one of claims 8 to 15, in which an endless belt is arranged along the rail 13 and guided via two rollers, a flashlight projector 14 is coupled to the belt and at a position on the belt furthest from the flashlight projector 14;
A device characterized in that a telescopic rod 15, like a telescopic tube, is articulated to the plate 10. 17. The apparatus according to any one of claims 8 to 16, which is fixedly installed separately for photographing an object or a person from two directions, and is fixedly installed at a fixed point. An apparatus characterized in that two flash projectors 14a and 14b are provided, which project a line pattern while the image is being photographed. 18. In the device according to any one of claims 8 to 17, the flashlight projector 14 has a corrected optical lens system in which the flashlight source is A device characterized in that the lens facing the is inclined with respect to the optical axis of the system. 19. A device according to any one of claims 8 to 18, in which the transparency with a line pattern has at least one dot between each two lines. 1. An apparatus characterized in that it has a vertically running line of dots in which the dots are arranged, and the spacing between the dots is at least twice the line spacing, and at most five times the line spacing.