JP3539002B2 - Stereogram - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereogram composed of a plurality of images, in which an image expressing motion is synthesized on an image expressing depth.

[0002]

2. Description of the Related Art A stereogram is for reproducing a planar image as a stereoscopic image. Conventionally, a holographic stereogram, a lenticular stereogram,
Parallax stereograms and the like are known. These stereograms selectively reproduce a plurality of original images according to the viewing angle to enable stereoscopic viewing by binocular parallax. As an application example, a stereogram combining a stereoscopic image and a moving image is known. For example, there is an image obtained by synthesizing a depth expression image expressing depth and a motion expression image expressing motion. In order to produce the stereogram, for example, the camera is moved at a constant pitch in the horizontal direction to simultaneously or separately photograph the copy object to be subjected to the depth expression and the subject to be subjected to the motion expression, and then take the original film. Make and combine both. FIG. 11 shows an example thereof, in which a background (room) 1a is adopted as a depth expression image.
This shows a case where a picture pattern 2a of a finger of Goo Choki Par's hand is adopted as the motion expression image. Since both are photographed at the same pitch, the number of constituent images is the same. Accordingly, an original stereogram image in which the finger pattern 2a is superposed correspondingly on the background 1a whose shape changes as shown in the figure is formed. When the stereogram is observed with both eyes, an image in which the pattern of the finger of the hand dynamically changes is observed in a stereoscopic image having a depth.

[0003]

When an image (animation) with motion is to be expressed in an original image of the conventional stereogram as described above, a motion expression element and a depth expression element are intermingled, and There was a problem that a typical stereogram was hard to appreciate. That is, FIG.
In the case of such a stereogram, both the background 1a and the picture pattern 2b of the finger of the hand change at the same time according to the viewing angle, and there is a problem that the image becomes rather difficult to see. If the depth expression image is sacrificed and only the motion expression image is narrowed down, the above-mentioned problem is temporarily solved, but there is a problem that the attractiveness of the depth expression as a stereogram disappears.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and has an attractive stereogram that avoids mixing of motion expression elements and depth expression elements and can achieve both effects of motion expression and depth expression. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a stereogram which selectively reproduces a plurality of original images according to a viewing angle to enable a stereoscopic view of a background and a picture. In the above, the original image is obtained by synthesizing a depth expression image expressing the depth of the background and a motion expression image expressing the movement of the pattern with each other, and the number of components of the motion expression image is equal to the number of components of the depth expression image. And a stereogram in which one motion expression image is assigned to several different depth expression images. Also, the present invention is characterized by a stereogram formed by blocking a part of the background by using the same mask as the picture when synthesizing the motion expression image with the depth expression image.

A representative frame is selected from the motion expression images, and the remaining frames are thinned to reduce the number of constituent frames. The reduced original image film of the motion expression image and the original film of the depth expression image having a greater number of components are combined to produce an original image of a stereogram. At this time, the two may be combined with a mask having the same shape as the pattern of the motion expression image selected, or the mask may not be used. As described above, it is possible to reproduce a three-dimensional image with sharp movements and deepness.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a stereogram according to the present invention will be described in detail with reference to the drawings. First, an example of producing a general stereogram according to the present invention will be described. 12 to 14 show a method of producing a holographic stereogram. As shown in FIG. 12, the subject 9 is photographed one frame at a time while moving the camera 8 at a constant pitch in the horizontal direction, and an original film 10 is produced. Next, as shown in FIG. 13, the plane image 11 of the original film 10 is irradiated with laser light, and the screen 13 is projected through the projection lens 12.
One planar image is formed on the top. The laser light that has passed through the plane image passes through the gap 14 smaller than the human pupil size of the slit plate 15 and reaches the hologram dry plate 16 as object light, and the element hologram 17 is recorded by irradiation of the reference light of the laser light. The original film 10 and the hologram dry plate 16 are moved one frame at a time to obtain a planar image 11 of the original film 10.
Are recorded on a hologram dry plate 16 to produce a master hologram 18. Next, as shown in FIG. 14, the master hologram 18 is irradiated with laser light to generate object light, and all frames are multiplex-recorded on the hologram dry plate 19 to produce a holographic stereogram.

In the present invention, as shown in FIG. 1, an original film 3 having a depth expression image 1 and a motion expression image 2 is used as the original film 10. FIG. 1 shows a case where the depth expression image 1 and the motion expression image 2 are simultaneously photographed. For convenience of explanation, (1), (2), (3)... Are assigned to each frame of the original film 3, and the depth expression image 1 corresponding to this frame number is represented by (a),
(B), (c)..., And the motion expression image 2 is represented by (a), (b), (c). On the other hand, FIGS. 2 and 3 show a case where the depth expression image 1 and the motion expression image 2 are separately photographed, and a depth expression image original film 4 and a motion expression image original film 5 are produced. FIG.
Shows a stereogram original image 6 of the present invention synthesized using the original film of FIGS. As will be described in detail later with reference to a specific example, the stereogram original image 6 includes the depth representation images 1 having the same number of frames as the frame numbers indicated by the frame numbers (1), (2), (3),. However, the number of components of the motion expression image 2 is thinned out, and only representative frames (the motion expression images indicated by (b), (e), and (h) in the figure) are selected and superimposed on the depth expression image. Synthesized.

FIG. 10 is a flow chart for specifically explaining a method for producing a stereogram original image according to the present invention. That is, the original film 5 of the motion expression image and the original film 4 of the depth expression image are produced separately or simultaneously (step 100). Next, a representative image in the original film 5 of the motion expression image is selected (step 10).
1) A thinned motion expression image original image film is set (step 102). The original film is subjected to preprocessing such as coloring (step 103). When the representative image is selected, a mask corresponding to this pattern is produced (step 104). On the other hand, a depth expression image original film 4
Is subjected to a desired pre-processing (step 105). Masking of the original film 4 of the depth-represented image using a mask suitable for the selected image (step 106), and synthesis with the original film 5 of the pre-processed motion-represented image and the original film 4 of the depth-represented image (step 107). A stereogram original image 6 is prepared (step 108). Note that the direct synthesis (step 107) may be performed without performing the mask processing (step 106). In this case, the background of the depth expression image and the pattern of the motion expression image visually overlap each other.

Next, a specific example of the present invention will be described with reference to FIGS. FIG. 5 shows each frame of the background (room) 1a as a depth expression image. For convenience of description, reference numerals (a), (b), (c),. On the other hand, FIG. 6 shows a picture 2a of the finger of the hand as a motion expression image, and the motion (change) of goo, choki, par is expressed. As shown in the figure, the image of the picture 2a of the finger of the hand shows a frame in which the state of the goo is slightly open and the state continuously changes to the state of the par. This image is also shown from left to right for convenience of explanation (a), (b),
(C), (d), (e), (f), (g), (h),
(I). In the prior art, as shown in FIG. 11, (a) to (i) of the background 1a in FIG. 5 correspond to (a) to (i) of the finger pattern 2a in FIG. That is,
(A) corresponds to (a), (b) corresponds to (b), and (c) corresponds to (c).

[0011] Next, as shown in FIG.
Among the frames of the picture pattern 2a of the finger of the hand, a characteristic one is selected as a representative image. For example, a sign 2b of a finger of “Goo” of a sign (B), a pattern 2c of a finger of a hand of “Cho” of a sign (E), and a pattern of a finger of a hand of “Par” of a sign (4) 2
d is selected. This is because goo, choki and par are displayed most characteristically.

Next, masks 7b, 7c, 7c, which correspond to the finger pattern 2b of the "goo" hand, the finger pattern 2c of the "choke" hand, and the finger pattern 2d of the "par" hand, respectively. 7d. The background 1 is provided by the masks 7b, 7c, 7d.
a is closed. As shown in FIG. 8, the mask 7b corresponding to the pattern 2b (goo) of the finger of the hand is applied to the three frames (a), (b), and (c) of the background 1a, The pattern 2c (choki) is the background 1a (d), (e),
(F) Applied to three places, 2d (par)
Correspond to (g), (h), and (i) of the background 1a, respectively. FIG. 9 shows the stereogram original image 6a produced as described above. That is, up to three frames of the background 1a included in the depth expression image, the same hand finger pattern 2b (goo)
Are sequentially arranged until the next three frames, and the same hand finger pattern 2d (par) is arranged until the next three frames. From the above,
A stereogram original 6a different from the conventional stereogram original shown in FIG. 11 is produced. As described above, a stereogram original image 6a can be produced in which the hand movements of goo, choki, and par are sharply emphasized in front of the background 1a where the depth changes. On the other hand, the depth expression of the background is also clearly seen. In this way, by rather thinning out the motion expression image, the change of the pattern and the depth of the background are compatible,
Excellent visual effects can be obtained.

Assuming that the number of components of the depth expression image is 100, if two out of the three motion images are thinned out, the same motion expression image becomes a common image for the three depth expression images. Therefore, the actual number of constituent images of the motion expression image is 100/3 ≒ 33. In this case, the ratio of the number of components is 33 [%], and the appropriate value is an appropriate ratio that does not generate noise according to the type and shape of the subject.

Although the holographic stereogram has been described as the stereogram, lenticular stereograms, parallax stereograms and the like shown in FIGS. 15 and 16 may be used. The lenticular stereogram uses a lenticular sheet 20 in the shape of a cylinder, and if the original image synthesized according to the back surface of the cylindrical lens is arranged in a vertical slit shape, the original image is reproduced with parallax, It can evoke a three-dimensional effect. The parallax stereogram is obtained by observing an original image ahead of the parallax stereogram through the vertical lattice mask 21 with the left and right eyes, and stereoscopic viewing is performed.

In the above description, the synthesis of the depth expression image and the motion expression image is performed on the original image. However, it is also possible to select the motion expression image at the time of final stereogram synthesis. Further, the motion expression image may be an image accompanied by parallax.

[0016]

The stereogram according to the present invention has the following remarkable effects. 1) The motion expression image is sharply emphasized in a deep background. On the other hand, the depth expression does not become difficult to see due to the motion expression. 2) Since the motion expression image and the depth expression image are separated and re-synthesized, each of them can exhibit its own effect. Further, it is possible to obtain an image in which both the motion expression element and the depth expression element are compatible. 3) Since the number of components of the motion expression image is reduced, processing time such as pre-processing of the image is reduced. It is also easy to perform full color processing only on the motion expression image. In this case, complicated color correction is not required.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an original film for producing a stereogram according to the present invention.

FIG. 2 is a schematic configuration diagram of an original film of a depth expression image according to the present invention.

FIG. 3 is a schematic configuration diagram of an original film of a motion expression image according to the present invention.

FIG. 4 is a general configuration diagram of a stereogram original image according to the present invention.

FIG. 5 is a plan view showing a frame of a specific depth expression image of the stereogram of the present invention.

FIG. 6 is a plan view showing a frame of a specific motion expression image of the stereogram of the present invention.

FIG. 7 is a plan view showing selection of a representative frame of the motion expression image of FIG. 6;

FIG. 8 is a plan view showing a specific example of a mask used for producing a stereogram original image of the present invention.

FIG. 9 is a plan view showing a specific example of a stereogram original image according to the present invention.

FIG. 10 is a flowchart for explaining a method for producing a stereogram original image according to the present invention.

FIG. 11 is a plan view showing an example of a conventional stereogram original image.

FIG. 12 is a schematic diagram for explaining a method for producing a holographic stereogram.

FIG. 13 is a schematic diagram showing a configuration of an optical system for producing a laser reproduction type holographic stereogram.

FIG. 14 is a schematic configuration diagram of an optical system for explaining recording of a hologram.

FIG. 15 is a schematic configuration diagram for explaining a method for producing a lenticular stereogram.

FIG. 16 is a schematic configuration diagram for explaining a method for producing a parallax stereogram.

[Explanation of symbols]

1 Depth expression image 1a Background (indoor) 2 Motion expression image 2a Hand finger pattern 2b Hand finger pattern (goo) 2c Hand finger pattern (choki) 2d hand finger pattern (par) 3 Original film 4 Original film of depth expression image 5 Original film of motion expression image 6 Original for stereogram 6a Original for stereogram 7 Mask 7b mask 7c mask 7d mask 8 Camera 9 subject 10 Original film 11 Plane image 12 Projection lens 13 screen 14 gap 15 Slit plate 16 dry plate 17-element hologram 18 Master hologram 19 Hologram dry plate 20 Lenticular sheet 21 Vertical lattice mask

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Claims (2)

(57) [Claims] 1. A stereogram that selectively reproduces a plurality of original images according to a viewing angle to enable stereoscopic viewing of a background and a picture, wherein the original image includes a depth expression image that expresses the depth of the background. A motion expression image expressing the movement of the pattern is synthesized with each other, and the number of components of the motion expression image is thinned out compared to the number of components of the depth expression image, so that the number of different depth expression images is different from each other. A stereogram to which one motion expression image is assigned. 2. The stereogram according to claim 1, wherein when synthesizing the motion expression image with the depth expression image, a part of the background is blocked using the same mask as the picture.