JPH05508984A - image system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] image system This invention should first be referred to as International Patent Application Nix Wo 90/13848. The imaging system described in British patent application NcL9015843.7 This invention relates to an improved decoder for use in

According to the invention, a decoder screen for use in an imaging system is provided. , in the imaging system the decoder screen forms a stereoscopic image pair with the observer. and a composite image containing an alternating portion of two images, the decoder screen is A surface with a moving pattern that alternates bright and opaque areas and a pattern when used a plurality of lens system elements in contact with the retaining surface and disposed between the viewer and the surface; It is something to be prepared for. The lens system elements also adjust the brightness and darkness perceived by one eye of the observer. The appearance of the transparent area is whether the pattern above is the pattern seen by the other eye of the observer. It is formed in such a way that it is the opposite of the

The Lascrete hybrid decoder screen of the present invention is designed for each eye. One, it is possible to send sharp images of two bright areas using the stereoscopic image difference contained between the two. It is possible. As a result, each eye receives a complete image of the stereo image pair. Since it receives a color image, it can produce a good three-dimensional effect.

A preferred form of the front system decoder according to the invention will be explained by way of example with reference to the drawings. This will be explained in detail.

Figures 1(a) and 1(b) show a line segment grid and a checkerboard type decoder. Shows a clean pattern.

FIG. 2 shows a prior art system using a decoder screen.

Figure 3 illustrates the decoder screen of the present invention when perceiving left and right limits, respectively. ing.

Figure 4 shows the image perceived by the left and right eyes when using the decoder screen according to the present invention. Show the image.

FIG. 5 shows a checkerboard screen similar to FIG.

FIG. 6 shows a schematic diagram of the intersection point effect.

FIG. 7 shows a composite image of the type used in an imaging system of the type to which the present invention relates. Show the image.

FIG. 8 shows a raster-lens hybrid decoder according to the present invention.

In an imaging system of the type in which the decoder of the present invention is used, the composite image is Formed for display. The composite image contains two sets of regions, which are generally colored Two lines separated by overlay, line multiplexing, or a combination of these two techniques Each set containing a portion of the image is generally alternated. scree A ``decoder'' is interposed between the image and the viewer; so that each eye sees only one of the two sets of areas when looking at the image, thus two You are supposed to see only one part of the two images.

In the brain, the two images are combined to produce a three-dimensional effect according to the observer's perception. generate.

The two types of decoder patterns are column line grid and checkerboard. 1(a) and FIG. 1(b). For example, the line grid in Figure 1(a) , the decoder will be in the form of a grid of stripes of equal width, with The stripes are light and dark respectively. This pattern is the shape of the composite image used by the decoder. reflected in the expression. Composite image used using the line grid decoder in Figure 1(a) The image will have a similar arrangement of stripes, with alternating stripes giving a stereoscopic three-dimensional effect. contains portions of each of the two images combined to produce a picture.

The raster-lens type hybrid screen or decoder of the present invention is a one-nons type screen. The clean effect (with respect to the encoded image on the screen) is expressed as a raster screen. In other words, as described in our application above and shown in FIG. 1(a) and the column line grid or checkerboard shown in FIG. 1(b).

In advance, the line segment grid or checkerboard decoder 10 in the column direction determines the pixels of the encoded image. The phosphor screen 12 is spaced apart and the degree of displacement changes with the situation. De This displacement between the plane of the coder screen lO and the plane of the image pixel plane 12 is Allowing for horizontal parallax between the eyes, each eye is marked as shown in FIG. Viewing through the bright portion 14 of the decoder screen for different positions of the encoded image It is something. The different positions of the encoded images are as specified in our application above. This is due to the characteristics of its own encoding. Each eye is an international application Pseudo-stereoscopic or two camera-stereoscopic images as described in 090/13848 Either the left image of the stereoscopic image pair or the right image of the stereoscopic image pair produced by the recording film method. In contrast, it is viewed through the bright portion 14 of the decoder screen 10.

In the earlier system cited, the plane of the decoder screen 1o and the pixel plane If there is no displacement with plane 12, there is no horizontal parallax. however, The raster lenticular hybrid of the present invention uses the optical activity of its lenticular components to to displace the position of the rusk opposing part. As a result, the lascrens-like hybrid The decoder screen and image plane are in direct physical contact between the two planes, causing displacement. Does not occur.

The left eye and right eye The horizontal parallax between It is designed to displace. Raster decoder screen stopped at the same position (line segment grid or checker board) and the previous image plane can be seen to different positions. It is the raster image that is itself displaced for each eye instead of each eye. As shown in Fig. 4, immediately before that, a different image plane is Remove the cover of the part.

FIG. 4 shows an RLH type star screen monitor 40 according to the present invention, similarly as previously described. In the image encoding system described in the referenced international application WO90/13848 , a pair of stereoscopic images 44° 46 formed from these, and the resulting composite image 48. It shows. 40(Iri and 40(r) are the RL sensed by the left and right eyes, respectively. 48(f) and 48(r) are composite images seen by each eye. shows the part.

Figure 5 is similar to Figure 4, but this time with a checkerboard pattern of RLH style studs. The screen shows the monitor. 50(f) and 50(r) are left and right, respectively. The RLH-type star screen is sensed by the human eye.

The RLH decoder flips the raster image 180° between the eyes. RL) I Deco Since the encoder and the image screen are in direct contact, the encoded composite image and the RLH deco There can be perfect alignment between the reader screens. Once this alignment is established, kept constant, then from a certain position in the observation region the optical properties of the RLH are It takes effect due to the horizontal displacement between the eyes. Each eye aligned left or right Image observation is performed, and the opposite eye is aligned again by looking at the amount of light on the opposite side. Previous The difference between the line segment grid decoder screen and the RLH decoder screen is that the former In contrast, the horizontal displacement of each eye is determined by the insertion of a line segment grid decoder screen. , one of the two image pairs encoded in the image plane is "unlocked".

On the other hand, RLf (the horizontal displacement of each eye with respect to the decoder screen is Unlock one of the two image positions of the rask pattern, and each one of the rask positions then "Unlock" one of the two images encoded in the image plane.

Same type of line segment grid decoder screen (excluding liquid crystal display device) Improved alignment of the RLH screen that can match the monitor or projection screen At the beginning of the program, the two images combined to form a composite encoded image are the words "left" and "right," and the observer then aligns their eyes accordingly. Place to align, and cross-over visible effects (for advanced alignment) (see Figure 6), but this effect is caused by the brain using the display screen. This allows objects to be clearly not brought outside the plane of the plane. R.L.H. The screen was encoded according to the system described in the above-incorporated international application. The software allows the generation of the illusion of an object sinking into the plane of the screen, Return to the clean grid, then go far through its depths.

The RLH screen of the present invention consists of a badge (representation) and a simple display (see Figure 8). A standard lens-based two-dimensional image display device of the type commonly used in Designed with As shown in the figure, for the RLH screen 80, most plastic encoded on a strip aligned after the strip of semicircular lenses 82 made of The resulting image is made up of alternating dark and light, black and uninked column-wise lines and screens. It consists of a pattern. For each eye, the pattern is similar in appearance to the darkness above. Switch the light pattern.

The RLH screen in some situations consists of a series of prisms as opposed to a lens system array. It can be made up of more than one. However, the net effect is the perceived rusk relative to hibernation. The position must be realigned, i.e. with one phase shift, the rask pattern for 1800 must be reversed.

Features in this configuration have two standard dimensions. First, the image shown in Figure 7 There is a standard dimension of the decoder pattern that corresponds to the dimension of the encoded image in a plain plane. . Second, there are standard dimensions of the semicircular lens 82, which is a lens system component of the RLH screen. . This latter standard dimension determines the width of the strips of the decoder pattern image (the first Figure 8).

The relationship between these two standard dimensions, i.e. their ratio, is the image in which the RLH is specified. It will change according to the situation of application of the system.

The basic principle underlying this system is to Measured in the horizontal plane, as generated by both eyes, as the only image difference introduced It seems that the brain does not require the stereoscopic displacement that was created. The reason for this is our Revolutions involve several stages, in which our distant ancestors and pioneers were predatory, Fast (rather nimble) and even more so than those in use today. There was a stage when he was an acrobat. As a result, hunting, food tracking, and survival events An accurate three-dimensional representation of the world in which the brain moves quickly, using both eyes to rotate The exact location of tributaries, anchorage, hiding places, crevices and the bait itself. The body was deadly.

For this reason, both eyes are capable of simultaneous left and right movements with a difference representing rotation, distortion, between the two eyes. Compare images and calculate temporal differentiation as well as many plane translations - asynchronously blinking eyes have.

As a result, a three-dimensional image is created from two images with differences other than horizontal displacement. It is an inherited neural algorithm that can generate .

The pseudostereoscopic behavior provided by this imaging system behaves similarly for this purpose. do. The reason is that the brain solves deep puzzles (left image, right image) observer observer -a---A-← abstract The Lasque lens hybrid decoder uses the difference in 3D images included between each image. This makes it possible to transmit two bright sharp images, one to each eye. Ru.

The decoder screen 80 has bright and opaque patterns such as parallel stripes and checkerboard patterns. a surface printed with a pattern of alternating regions, and a plurality of lens elements 82. Therefore, it is equipped with a semicircular lens or an elongated prism. This Len The shape of the lens elements is such that the bright and opaque regions perceived by one of the observer's eyes are pattern when the observer's other eye is positioned directly behind the decoder screen. The appearance that we perceive when looking at a finished image is formed so that it is an inversion of the upper pattern. . Therefore, each eye of the observer sees only one of the two images forming the stereo image pair. It senses the parts and produces a three-dimensional effect of the whole.

Submission of translation of written amendment (Article 184-8 of the Patent Law) February 1, 1993

Claims (7)

[Claims] 1. between the viewer and a composite image containing alternations of the two images that together form a stereoscopic image pair. Decoder used in imaging systems with a decoder screen between them a screen, the decoder screen having a pattern of alternating bright and opaque areas; a surface having a pattern and, in use, being in contact with a surface having a pattern and having a pattern thereon; a plurality of lens system elements disposed between the observer and the surface; The visual elements are the apparent bright and opaque regions perceived by one of the observer's eyes. The above pattern is an inversion of the apparent pattern perceived by the observer's other eye. A decoder screen formed as follows. 2. The lens system element includes a plurality of partially cylindrical lenses extending substantially parallel to each other. 2. The decoder screen according to claim 1, wherein the decoder screen is a lens. 3. The lens system elements include a plurality of elongated prisms extending substantially parallel to each other. A decoder screen according to claim 1, characterized in that it is a decoder screen. 4. The pattern possessed by the surface extends substantially parallel to the lens system elements. claim 1, comprising a plurality of alternating light and opaque stripes. A decoder screen according to any one of clauses 1, 2, or 3. 5. The pattern on the surface has a checkerboard of alternating bright and opaque areas. a disc pattern, one edge line of each region being substantially parallel to the lens system element; Claims 1, 2, or 3, characterized in that the invention extends to decoder screen. 6. The pattern-bearing surface is provided edge-to-edge on the rear surface of the lens system element. Any one of claims 1 to 5, characterized in that it is formed by a surface. Decoder screen described in Crab. 7. A decoder screen that is substantially the same as described in the text above.