JP2005182413A - Image separator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image separator capable of separateing only one image information from the mixed image of two images different in a generation source, for instance, capable of discriminating the image projected on a screen by a projector (a projected image: a second image in this in vention) and the other image existing in front of the projected image (the actual image of an object: a first image in this invention) and acquiring only the one image information. <P>SOLUTION: In this image separator, the first image is composed of the object or the projected image existing in a space. A projection means generates primary color images composed of projection colors successively selected from a plurality of primary colors selected so as to reproduce colors in a wide range by mixing them and periodically projects them in order to form the second image by successively and repeatedly projecting the object or the projection image in the space by an image source. An image pickup means photographs the space. A processing means removes the projection color components of the unit for each unit from the mixed image of the first image and the second image in the space photographed by the image pickup means. An arithmetic means computes the output of the processing means and obtains only the video information of the first image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides an image separation device that separates only information of one image from a mixed image of two images having different sources, for example, an image projected on a screen by a projection device (projection image: second image in the present application) and The present invention relates to an image separating apparatus capable of distinguishing another image (real image of an object: a first image in the present application) existing in front of the image and acquiring only information of one image.

As an example of separating only information of one image from two images having different generation sources, there is an example of obtaining a real object image in front of a projection image. There are the following two existing methods for detecting a real object in front of the projected image.
(Specific wavelength detection method) Used in an image projector with a dedicated support bar. This is characterized by attaching an infrared light emitter to the tip of the indicator bar and detecting the indicator bar using the fact that the projected image does not originally contain an infrared component, or the visible indicator point indicated by a laser pointer, etc. Some are detected using.
(Image difference method) The entire display surface is once imaged by a camera, and the residual image is assumed to be a real image by the object on the front surface of the projection surface by an operation of matching and subtracting the original image input to the display device after that.

  In the specific wavelength detection method described above, an object in front of the display surface needs to emit light at a specific wavelength, and a real image cannot be taken with any object. In particular, in the case of using a wavelength in the visible light region, a malfunction may occur when a characteristic color is included in the video input to the display device. In the image difference method, a high-speed computing device is required for computation for correcting a difference in resolution and luminance between an image captured by a camera and an original image.

A main object of the present invention is to provide an image separation device that can acquire image information of one image without giving a special stimulus (unnatural lighting or the like) to the space in question.
Another object of the present invention is to provide an image separating apparatus that can reliably acquire video information of one image without being easily affected by the situation of the outside world.
Still another object of the present invention is to provide an image separation apparatus that can be used for many applications, for example, in-vehicle applications, by using information on one acquired image.

In order to achieve the object, an image separating apparatus according to claim 1 according to the present invention is provided.
An image separation apparatus used together with a projection unit that decomposes image information including moving image information into a plurality of primary color components and sequentially projects each primary color component at high speed sequentially,
Imaging means for capturing an image of a space affected by the projected image;
Processing means for removing the primary color component from the image output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
It is composed of
According to the present invention, there is provided an image separating apparatus according to claim 2.
A projecting means for periodically projecting an image separated into a plurality of primary color components at high speed sequentially for each primary color component;
Imaging means for capturing an image of a space affected by the projected image;
Processing means for removing the primary color component from the image output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
It is composed of

An image separating apparatus according to claim 3 according to the present invention, wherein an illumination unit that sequentially selects a plurality of primary colors and periodically projects illumination light of the primary colors at a high speed;
Imaging means for capturing an image of the space affected by the illumination;
Processing means for removing the primary color component from the output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
It is composed of

An image separation apparatus according to claim 4 according to the present invention is an illumination unit that sequentially selects a plurality of primary colors and periodically projects illumination light of the primary colors at high speed.
Imaging means for capturing an image of the space affected by the illumination;
Processing means for removing the primary color component from the output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
It is composed of

An image separation device according to a fifth aspect of the present invention is the image separation device according to any one of the first to fourth aspects, wherein the arithmetic means is configured to reproduce an image of a space by adding the images of each period. Yes.
According to a sixth aspect of the present invention, in the image separation device according to the first to fourth aspects, the plurality of primary colors are a plurality of primary colors selected so that a wide range of colors can be reproduced by mixing. Yes, preferably R, G, B.

According to a seventh aspect of the present invention, in the image separation device according to the second aspect, the moving image existing in the space and the projection image by the projection unit are separated, and the moving image is a person in front of the screen or It is an image that indicates the portion of the projected image.
The image separating apparatus according to claim 8 of the present invention is the image separating apparatus according to claim 3, wherein a speaker or a driver is present in the space, the illumination means is white illumination, Images are separated for driver attitude detection.
The image separation device according to claim 9 according to the present invention is the image separation device according to claim 4, wherein the space is a front space of a traveling vehicle, and an object exists in the space.
The projection unit projects a scale image onto the object, and the calculation unit separates the scale image affected by the object and provides data of the object.

According to the present invention, it is possible to provide an image separation device that can acquire video information of one image without giving a special stimulus (unnatural lighting or the like) to the space in question.
It is another object of the present invention to provide an image separation device that can reliably acquire video information of one image without being easily affected by the external environment.
In addition, it is possible to provide an image separation device that can be used for many applications, for example, in-vehicle applications, using information on one acquired image.

Embodiments of an apparatus according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic diagram for explaining the concept of an image separation device according to the present invention. In this embodiment, a first image 20 exists in a space, and a second image is projected on the image 20 by a projection means. It forms an image. First, the concept of the first image and the second image will be described with reference to FIG. FIG. 2 is a schematic diagram for explaining the operation principle of the image separation device, and illustrates mixing by imaging, processing of captured images, and calculation processes by taking a specific image pattern as an example.

The first image is determined by the object 20 existing in space. In order to facilitate understanding, the object is formed into a sheet shape, and the surface thereof is in a region called Ob in the center of the upper side in FIGS. This sheet is colored in a pattern as shown in 20 of FIGS. 1 and 2, and the coloring components are r, g, and b. The object in the space is sequentially and repeatedly illuminated by a second image source (not shown) by the projecting means to form a second image.
For this purpose, an image composed of each of two or more projection colors (R, G, B) that form a complementary color relationship as a whole is divided and generated at high speed and projected with illumination composed of a plurality of illumination units.
The second image source projects the second image 21 (visible image) into space, and (R), (G), and (B) in the image 21 are such patterns of the respective colors. I want to be understood.
This image (visible image) is obtained by sequentially projecting 21R, 21G, and 21B shown in FIG. 2 in three consecutive extremely short projection units onto a space in succession. An observer (not shown) cannot follow the repetitive projection of the R, G, and B colors and observes a mixed image as indicated by 22 in FIG. The observer observes an image in which the vertical line of R, the horizontal line of G, and the oblique line of B overlap the first image.
In the present invention, the terms complementary color and complementary color as a whole are used. This is used in the above-described example to mean that the mixed color of the colors G and B with respect to the color R becomes a complementary color and becomes colorless as a whole. For example, when the color of the illumination is considered, when the R, G, and B illuminations are repeated at high speed, when the observer recognizes that it is illuminated with white light, the overall color relationship is said to be complementary. It is used for.
For this purpose, an image composed of each of two or more primary colors (R, G, B) is divided at high speed and projected with illumination composed of a plurality of illumination units.
The second image source projects the second image 21 (visible image) into space, and (R), (G), and (B) in the image 21 are such patterns of the respective colors. I want to be understood.
This image (visible image) is obtained by sequentially projecting 21R, 21G, and 21B shown in FIG. 2 in three consecutive extremely short projection units onto a space in succession. An observer (not shown) cannot follow the repetitive projection of the R, G, and B colors and observes a mixed image as indicated by 22 in FIG. The observer observes an image as if the first image is irradiated with an image formed with a white light source.

Here, the configuration of the projection means will be described with reference to FIG. 8A.
FIG. 8A is a schematic diagram showing a configuration example of a combination of a rear projection and a three-plate CMOS or CCD color camera of the image separation device according to the present invention.
In FIG. 8A, white light from the light source 1 is condensed through the condenser lens 2 and colored into a projected color through the color wheel 4 that rotates at high speed. The calculation means 3B generates density information relating to the projection color of the projection original image of the second image from the image source sheet 3. The colored image is formed on the back surface of the screen 10 by the projection lens 6 to form an image corresponding to the second image described above. The difference from the arrangement shown in FIG. 1 is that the second image is the background of the first image (the object 13 in FIG. 8A). The configuration from the light source 1 to the lens 6 corresponds to the projection means in FIG. An image that the observer will visually recognize with the observation eye 19 is shown as 19A.
FIG. 8B is a schematic diagram showing a configuration example of a combination of a rear projection and a single-chip CMOS or CCD color camera of the image separation device according to the present invention.
In FIG. 8B, the white light from the light source 801 is condensed through a condenser lens 802 and colored into a projected color through a color wheel 804 that rotates at high speed. The projection color determination unit 809 determines the current projection color based on the output of the rotation angle detection unit 808, and the calculation unit 809A sends to the single-plate digital mirror 803 density information regarding the projection color in the projection original image. A single-plate digital mirror has a large number of minute movable mirrors installed on a single plate. By adjusting the angle of each movable mirror, whether or not the reflected light of the movable mirror is guided to the lens 806 is determined. To replace the image source sheet of FIG. 8A. The colored image forms an image of selectively reflected light on the screen 810 through the lens 806. Thereby, an image corresponding to the second image is formed. A significant difference from the configuration of FIG. 8A is that the projection color information is not derived from the projection apparatus and is independently determined by the imaging system. The configuration from the light source 801 to the lens 806 corresponds to the projection means in FIG. Note that an image that the observer will visually recognize through the observation eye 820 is indicated as 820A.

The imaging means shown in FIG. 1 images the space and sequentially captures a mixed image of the first image and the second image in the space.
The mixed image 23 of the image 21R and the image 20 is captured in the first imaging unit synchronized with the first projection unit, the mixed image 24 of the image 21G and the image 20 is captured in the next imaging unit, and the next imaging is performed. A mixed image 25 of the image 21B and the image 20 is captured in units, and this imaging is repeated.

On the other hand, the processing means performs processing for removing the projected color component of each unit from the mixed image of the first image and the second image in the space for each unit.
An image 26 from which the projection color component has been removed is obtained from the mixed image 23 of the image 21R and the image 20 by the first processing synchronized with the first imaging unit. Note that at this time, the r component of the first image is removed together with the component image 21R of the second image.
Similarly,
An image 27 from which the projection color component has been removed is obtained from the mixed image 24 of the image 21G and the image 20 by the second process synchronized with the second imaging unit. At this time, the g component of the first image is similarly removed together with the component image 21G of the second image.
An image 28 obtained by removing the projection color component from the mixed image 25 of the image 21B and the image 20 is obtained by the third process synchronized with the third imaging unit. At this time, the b component of the first image is also removed together with the component image 21B of the second image.

The above-described cooperative operation between the photographing unit and the processing unit will be described with reference to the example of FIG. 8A. 8A and 8B show an example using a color wheel and a translucent image source sheet for easy understanding, but a single-plate digital mirror type DLP projector is suitable as the projection means. Available to: In FIG. 8A, the image of the screen 10 corresponds to the second image 21 of FIG. 1, and the object 13 illuminated with the light beam 15 from the white light source corresponds to the first image 20.
The first image and the second mixed image in space are processed in the following time series.
The projection of 21R in FIG. 2 is performed by the first projection unit. The red component 21R of the projection source image is formed on the screen by the R of the color wheel 4 and the image source sheet 3 synchronized therewith. The image and the image 23 of the object 13 are distributed by the lens 14 to the three-plate CMOS or the CCDs 17R, 17G, and 17B via the dichroic prism 16. At this time, a combined output image 26 of the image components 17G and 17B excluding the projection color is taken out from the analog switch 18.
The projection of 21G in FIG. 2 is performed by the second projection unit. The green component 21G of the image projection source image is formed on the screen 10 by G of the color wheel 4 and the image source sheet 3 synchronized therewith. The image and the image 24 of the object 13 are distributed by the lens 14 to the three-plate CCDs 17R, 17G, and 17B via the dichroic prism 16. At this time, a combined output image 27 of the image components 17B and 17R excluding the projection color is extracted from the analog switch 18.
The projection of 21B in FIG. 2 is performed by the third projection unit. The blue component 21B of the image projection source image is formed on the screen 10 by the color wheel 4 B and the image source sheet 3 synchronized therewith. The image and the image 25 of the object 13 are distributed by the lens 14 to the three-plate CCDs 17R, 17G, and 17B via the dichroic prism 16. At this time, a combined output image 28 of the image components 17R and 17G excluding the projection color is extracted from the analog switch 18.
The analog switch is switched by the photo interrupter 7 detecting the position of the color wheel 4, and determining the projection color by the projection color determination unit 9 via the PLL circuit 8.

  The image 26 is obtained by removing the component r having the same color as the projection color and the image 21R which is the R component of the second image from the first image. Similarly, the image 27 is obtained by removing the component g having the same color as the projection color and the image 21G which is the G component of the second image from the first image. Similarly, the image 28 is obtained by removing the component b of the same color as the projection color and the image 21B which is the B component of the second image from the first image. The projection color-removed images 26, 27, and 28 obtained as described above are calculated by the calculation means (FIG. 1). When the sum of the images 26, 27, and 28 is obtained, the color component of the first image is enhanced and recovered, and the second image component considered to be background light is completely removed.

The cooperative operation between the photographing means and the processing means will be further described with reference to the example of FIG. 8B.
In FIG. 8B, the image of the screen 810 corresponds to the second image 21 in FIG. 1, and the object 813 illuminated with the light beam 815 from the white light source corresponds to the first image 20.
The first image and the second mixed image in space are processed in the following time series.
The projection of 21R in FIG. 2 is performed by the first projection unit. A red image 21R is formed on the screen by R of the color wheel 804. 2 and the image 13 of the object 13 (FIG. 2) are picked up by the single-chip CMOS or CCD 816A of the single-plate color image pickup device 816 and stored in the frame memory 817 as the projection color component, in this case the R component, as shown in FIG. 2, the image 26 of FIG. 2 is extracted from the 20r component of FIG.
Since the subsequent processes related to the second and third projection units are the same, the description thereof will be omitted.
The projection color removal unit 818 is controlled based on the projection color determination result of the projection color determination unit 809 by the angle detection unit 808 detecting the position of the color wheel 804.
The arithmetic processing is also the same as described above, and the color component of the first image is enhanced and recovered by a factor of 2, and the second image component considered to be background light is completely removed.
FIG. 8B illustrates a more practical configuration that does not require routing of the synchronization signal from the projection apparatus. When imaging is repeated at a very high speed using the single color imaging device 816, an area where the color changes at an extremely high speed can be found in the imaging area. Since natural light or normal illumination cannot change at an extremely high speed, the projection area determination unit 818A determines this as the projection area of the projection apparatus. The projection color determination unit 818B calculates the current projection color while paying attention only to the projection area. The current projection color can be calculated by the following logic. When the color of the projection area changes at high speed, the immediately preceding captured image is subtracted from the captured image immediately after the change. For example, when the projected color changes from R to B, the colors R, r, g, and b are captured in the immediately preceding captured image, and the colors G, r, g, and b are captured in the immediately following captured image. Therefore, the former is subtracted from the latter to obtain a difference of GR. Of these, the positive component is the new color and the negative component is the old color. Actually, when the real object in front of the screen moves, noise is added to the difference. However, since the movement of the real object is slight movement in the ultra-high-speed imaging cycle, the main component of the positive component is obtained by statistical methods. By finding the color, the new color can be calculated sufficiently.

(Embodiment 1) An example applied to a gesture recognition apparatus will be described below with reference to FIG.
A moving image is projected from below the frost glass 304 to the frost glass 304 corresponding to the screen 10 having the configuration described with reference to FIGS.
Reference numeral 303 denotes a reflecting mirror used for projection. The projected moving image corresponds to the above-described second image, and generates an image composed of each of two or more projected colors (R, GB) forming a complementary color relationship as a whole at high speed. However, it is projected in a plurality of projection units, and is observed as a normal color moving image by the user.
When the hand 301 corresponding to the first image described above in relation to the moving image is moved, only the actual image is acquired ignoring the projected image. The image is captured by the camera 305 that is an image capturing unit, processed by the processing unit 310, and the motion of the user is extracted by the calculation unit 312 without being affected by the motion of the projection image. Only the hand image 308 is projected onto the screen 307 by the projection device 306 and shown.
As described above, in the synchronous imaging, only the actual image can be obtained by ignoring the projection image, so that the user's movement can be quickly recognized without being influenced by the movement of the projection image.
This embodiment can also be applied to a rear projection on the inside of a vehicle or a wall surface, and an imaging device synchronized therewith.

(Example 2) An example of application to a chroma key device will be described with reference to FIG. A chroma key device (or chroma key composition) refers to a device or effect that creates an image as if the actor was on the spot by superimposing the actor's video taken separately in the studio on the landscape video. In traditional chroma key composition, actors act in front of a blue screen (or green screen) to erase the studio background. The removal of the blue component (green component) from the studio video and the synthesis with the landscape video are performed digitally, so there is little degradation of the video. And it is difficult to imagine the finish. For this reason, a large screen is placed on the actor's background, and a landscape image is projected on the screen by rear projection (projection from the back of the screen), and the actor is acting in front of it. However, in this method, since the process of projecting the landscape video once taken and imaging again for each actor can be performed only in an analog manner, degradation of the landscape video is inevitable.

According to the image separation device of the present invention, it is possible to capture only the actual image from which the projected image is removed while actually projecting the image in the same manner as the rear projection method. For this reason, it is possible to record without impairing the ease of acting and production, and the background can be digitally synthesized later with high image quality. In FIG. 4, a background image is projected by a projector 400 as projection means on a rear screen 401 arranged behind the actor 403 corresponding to the first image. The background is projected in units of primary colors. The output of the camera 404 is processed by the processing unit 410 and is calculated by the calculation unit 411, and only the image of the actor 403 that is the first image is taken out. The actor's image, which is the calculation output of the calculation means 411, is composed of shooting data and background composition means 412.

  The conventional chroma key method is not bad in image quality, but there are difficulties in performance and production, and confirmation of the finish. The conventional rear projection method has few problems in the ease of acting and production and the confirmation of the finish, but has a problem in image quality. On the other hand, the image separation apparatus according to the present invention is superior to the conventional method in any of the above points.

(Embodiment 3) Next, an example applied to stage screen imaging projection or a speaker's projection apparatus will be described with reference to FIG. When a lecturer on the stage is photographed and projected onto the screen on the stage again, the projected image may enter the imaging device again, and may appear in multiple layers like a mirror. When the image separation device according to the present invention is used, the projected image can be removed while projecting, so that the visibility is not impaired even if the imaging screen is projected onto the screen 506 in real time. The video of the lecturer 502 (corresponding to the first image) being lectured on the podium 501 is projected again in primary color units by the ceiling fishing projector 503, but the cameras 504 are connected to each other by a synchronous connection line 508. And is synchronized as in the previous embodiment. As for the output of the camera 504, only the image of the lecturer is taken out by the processing means 510 and the computing means 512 and projected from the projector 503 onto the screen 506.

(Embodiment 4) A remote control type projector using an image separating apparatus according to the present invention will be described with reference to FIG. The projector 603 is wirelessly notified of the pressing state of the click button by the laser pointer 605 and the pointing device 608 having several click buttons. The projector (time-division color display device) 603 includes an imaging camera 604 directly beside the projection lens, and examines the projection point 605A of the laser pointer at the moment when the click button is notified by the image separation device according to the present invention. Specifically, the bright spot component of the red laser can be detected at high speed by detecting the different color component of red while the time-division color display device displays blue or green.
It is also possible to identify the color of the laser pointer 605 by detecting different color components for all the primary colors of the projector 603. For example, if there is a bright spot that is detected as a different color component only when displaying red and blue, it can be identified as a green bright spot, and a different color component that is detected to the same extent is recognized for all primary colors. It can be identified as a white bright spot. The output of the camera 604 is displayed as necessary by extracting the projection point 605A of the pointer as the first image by the processing means 610 and the arithmetic means 612.

(Embodiment 5) A vehicle-mounted distance measuring device can be constructed using the image separating device according to the present invention. FIG. 7A illustrates the principle of the light cutting method as means for acquiring the distance to the object. In this method, linear light is projected onto an object, and the degree of bending of the light beam due to the unevenness of the surface of the object 708 is captured by an imaging device having an optical axis different from that of the light source, and measured by the principle of triangulation.
Assume that there is an object 703 (corresponding to the first image) made of an object existing in the front space of the automobile 700 as shown in FIG. A mesh-like scale projection image (second image) is sequentially and repeatedly projected onto the object 703 (corresponding to A 708) in the space by an image source (not shown). The projection device 702 that is a projection means generates two or more projection colors whose complementary colors form a complementary color relationship as a whole, and generates an image composed of one color at a high speed and projects it in a plurality of projection units.

  An object 703 and a mesh-like scale projection image (second image) are picked up by a synchronous camera 701 as image pickup means. The projection color component of the unit is removed for each unit from the mixed image of the first image and the second image of the space captured by the imaging unit by the processing unit 710 shown in FIG. 7C. The first calculation means calculates the output of the processing means to obtain only the video information of the first image. The second calculation means 712 acquires distance data of the object 703 from the output of an arbitrary projection unit of the processing means 710 and the video information of the first image of the first calculation means 711. In the above-described embodiments, all three primary colors are used. However, in this example, when a mesh image and its complementary color image are alternately displayed at an ultra-high speed, the image appears white for human eyes. In other words, a mesh (squares) image for distance measurement and its complementary color mesh image are alternately projected at high speed from the own vehicle. The driver of other vehicles can only see a white light like a headlight, but the high-speed in-vehicle camera of the vehicle can accurately capture the mesh as a mesh and use it for distance measurement. If the complementary color combinations can be negotiated dynamically, there is a possibility that the interference between vehicles seen in the active ranging method can be avoided.

  As described above in detail, the image separation device according to the present invention can be used as a vehicle-mounted device and widely in the field of video processing.

1 is a schematic diagram illustrating a schematic configuration example of an image separation device according to the present invention. 1 is a schematic diagram for explaining an operation principle of an image separation device according to the present invention. It is a perspective view which shows the gesture recognition apparatus comprised using the image separation apparatus by this invention. It is a perspective view which shows the chroma key apparatus comprised using the image separation apparatus by this invention. It is a perspective view which shows the speaker projection apparatus comprised using the image separation apparatus by this invention. It is a perspective view which shows the pointer apparatus comprised using the image separation apparatus by this invention. It is explanatory drawing for demonstrating the block diagram (C) of the vehicle-mounted obstacle detection system (B) comprised using the image separation apparatus by this invention, the principle of a measurement distance (A), and the said system. 1 is a schematic diagram showing a configuration example of a combination of a rear projection of an image separation device according to the present invention and a three-plate CCD color camera. 1 is a schematic diagram illustrating a configuration example of a combination of a rear projection of an image separation device according to the present invention and a single-plate CCD color camera.

Explanation of symbols

1 light source 2 condenser lens 3 image source sheet (liquid crystal image source)
4 Color wheel 5 Relay lens 6 Projection lens 7 Projection color detection means (photo interrupter)
8 PLL circuit 9 Judgment part 10 Screen 11 Sync signal line 13 Object 14 Imaging lens 15 Light flux 16 Dichroic prism 17 (17R, 17B, 17G) CCD
18 Analog switch 19 Observation eye 20 First image 21 Visual image of second image 22 Mixed visual image of first and second images 23 R image projection image (not visible)
24 G image projection image (not visible)
25 B image projection image (not visible)
26 R image projection image (composite output)
27 G image projection image (composite output)
28 B image projection image (composite output)
29 Calculation means output image 30 Interface (processing means)
31, 32, 33 Switch output 34 Interface (arithmetic unit)
DESCRIPTION OF SYMBOLS 300 Desk 301 Hand 302 Projector 303 Reflector 304 Frost glass 305 Camera 306 Projector 307 Display surface corresponding screen 308 Hand image 400 Projector 401 Screen 405 Synchronization signal line 500 Illumination means 501 Podium 502 Speaker 502A Speaker image 503 Projector 504 Camera 506 Screen 601 Desk 602 Speaker 603 Projector 605 Laser pointer 700 Automobile 701 Synchronous camera 702 Projector 706 Slit laser light source 707 Camera 708 Measurement object 801 Light source 803 Single plate digital mirror 804 Color wheel 806 Projection lens 808 Angle detection unit 810 Screen 811 Sync signal line 813 Object 816 Single plate color imaging device 817 Frame memory 818 Projection color Remover 819 Output image 820 Observation eye

Claims (9)

An image separation apparatus used together with a projection unit that decomposes image information including moving image information into a plurality of primary color components and sequentially projects each primary color component at high speed sequentially,
Imaging means for capturing an image of a space affected by the projected image;
Processing means for removing the primary color component from the image output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
An image separation device composed of A projecting means for periodically projecting an image with a primary color sequentially selected from a plurality of primary colors at high speed;
Imaging means for capturing an image of a space affected by the projected image;
Processing means for removing the primary color component from the image output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
An image separation device composed of Illumination means for sequentially selecting a plurality of primary colors and periodically projecting illumination light of the primary colors at a high speed,
Imaging means for capturing an image of the space affected by the illumination;
Processing means for removing the primary color component from the output corresponding to each primary color of the imaging means;
An arithmetic device for calculating the output of the processing means to obtain an image of the space;
An image separation device composed of Projection means for sequentially selecting a plurality of primary colors and periodically projecting the primary color image at a high speed;
Imaging means for capturing an image of a space affected by the projection;
Processing means for removing the primary color component from the output corresponding to each primary color of the imaging means;
A computing device that computes the output of the processing means to obtain an image of any primary color affected by the space;
An image separation device composed of   5. The image separation device according to claim 1, wherein the calculation unit reproduces an image of the space by adding the images of each period.   5. The image separating apparatus according to claim 1, wherein the plurality of primary colors are a plurality of primary colors selected so that a wide range of colors can be reproduced by mixing, preferably R, G, and B.   3. The image separation device according to claim 2, wherein a moving image existing in the space and a projection image by the projection unit are separated, and the moving image is an image indicating a person in front of the screen or a portion of the projection image. .   4. The image separating apparatus according to claim 3, wherein a speaker or a driver is present in the space, and the illumination unit is white illumination, and an image is separated for projecting the speaker or detecting the posture of the driver. Image separation device. The image separation device according to claim 4, wherein the space is a front space of a traveling vehicle, and an object exists in the space.
The projection unit projects a scale image onto the object, and the calculation unit separates the scale image affected by the object and provides data of the object.

Images