JPH07244343A - Stereoscopic photograph - Google Patents

Abstract

PURPOSE:To obtain a stereoscopic photograph at low cost without necessitating special spectacles. CONSTITUTION:The stereoscopic photograph is constituted of a transparent sheet 10 having specified thickness, a parallax barrier 11 printed on the 1st surface of the sheet 10 and the stereoscopic image 12 printed on the 2nd surface of the sheet 10. The parallax barrier 11 is printed with back ink at the specified pitch in a vertical stripe state on the 1st surface of the sheet 10. The stereoscopic image where the picture elements of L and R are formed in a horizontal direction at the specified pitch and the picture elements of L and R are formed in a vertical direction in the stripe state is printed on the 2nd surface of the sheet 10. By arranging a light source 13 on the 2nd surface side of the stereoscopic photograph and observing the photograph distantly from the 1st surface side by a proper visual range, the stereoscopic image of a still picture is observed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic photograph capable of observing a stereoscopic still image without requiring special glasses.

[0002]

2. Description of the Related Art Conventionally, a method for obtaining a three-dimensional photograph with a multi-lens type three-dimensional still camera is described in, for example, Japanese Patent Publication No. 57-7422. According to this method, it is possible to synthesize a stereoscopic photograph by printing from a plurality of taken negatives through the lenticular sheet. Then, a stereoscopic image can be viewed by attaching the same lenticular sheet to the stereoscopic picture.

[0003]

However, in the above-mentioned method, the process of attaching the lenticular sheet to the printed stereoscopic photograph is required, and the lenticular sheet needs to be prepared separately, which is expensive. .

The present invention solves the above-mentioned drawbacks.
It is intended to provide a stereoscopic photograph in which a stereoscopic still image can be observed inexpensively without the need for a lenticular sheet.

[0005]

According to the present invention, a vertical stripe-shaped parallax barrier having a predetermined pitch is formed on a first surface of a transparent sheet, and the second surface of the transparent sheet has a predetermined pitch in the horizontal direction. 3 is a stereoscopic photograph formed by printing a stereoscopic image in which a right-eye image and a left-eye image are alternately formed.

[0006]

With the above-mentioned means, when the light source is arranged on the second surface side of the transparent sheet and is observed at the proper viewing distance from the first surface side of the transparent sheet, the image for the left eye is the same as the image for the left eye for the right eye. In addition to being shielded by the Lux barrier, the image for the right eye is shielded by the parallax barrier for the left eye, so only the image for the right eye is incident on the right eye and only the image for the left eye is incident on the left eye for stereoscopic viewing. Becomes

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, FIG. 1 shows a sectional view of a three-dimensional photograph of the present invention. This three-dimensional photograph is a transparent sheet 1 having a predetermined thickness.
0, the parallax barrier 11 printed on the first surface of the transparent sheet and the stereoscopic image 13 printed on the second surface of the transparent sheet.

As shown in FIG. 2a, the parallax barrier 11 is printed with black ink in a vertical stripe pattern at a predetermined pitch and blocks light.

The stereoscopic image 12 is created by a stereoscopic video printing system, which will be described later, based on a still image signal, and as shown in FIG. 2b, L and R pixels are formed in a horizontal direction at a predetermined pitch. Further, L and R are formed in a stripe shape in the vertical direction.

Then, the light source 1 is provided on the second surface side of the three-dimensional photograph.
When 3 is arranged and observed at an appropriate viewing distance from the first surface side, the image for the left eye is shielded from the parallax barrier 11 for the right eye, and the image for the right eye is described for the left eye. Since the parallax barrier 11 blocks light, only the right-eye image enters the right eye and the left-eye image enters the left eye, enabling stereoscopic viewing.

In the above embodiment, the light source is arranged on the second surface side of the stereoscopic photograph, but as shown in FIG. 3, the light source 13 is arranged on the first surface of the stereoscopic photograph, that is, the parallax barrier side. Alternatively, the observation may be performed from the second surface side. In this case, since the parallax barrier 11 is made of an aluminum film, reflected light can also be used, so that an image with higher brightness can be obtained.

In both cases of FIG. 1 and FIG. 3, the horizontal pitch of L and R of the stereoscopic image depends on the thickness of the transparent sheet, the distance from the transparent sheet to the observer, and the distance between the eyes of the observer. The pitch of the parallax barrier can be geometrically determined by the thickness of the transparent sheet, the distance from the transparent sheet to the observer, and the L and R pitches of the stereoscopic image.

Next, a stereoscopic still video printing system for producing a stereoscopic photograph according to the present invention will be described.

FIG. 4 is a block diagram of the three-dimensional still video printing system in this embodiment. First, moving image signals are output from the right-eye and left-eye digital video cameras 1 and 2, respectively. The output of each digital video camera is supplied to the frame memories 3 and 4. Writing and reading of this frame memory can be controlled by a personal computer to be described later, and data for one screen of a still image is stored. This frame memory output is supplied to the synthesis circuit 6. Here, the combining process is performed by interleaving the left and right image data for each pixel in the horizontal direction.

Then, the combined left and right image data is supplied to a personal computer (hereinafter referred to as a personal computer) 7. The personal computer 7 can select an arbitrary scene output from the digital video cameras 1 and 2 as a still image. When this still image selection is executed, a control signal is output to the frame memories 3 and 4. Then, after the image data for each of the left and right frames is written in the frame memory, the image data is read out at a low speed and the synthesizing circuit 5 is read.
Is supplied to.

Furthermore, characters and the like can be combined with the still image selected in the personal computer 7. Further, a 3D monitor 8 is connected to the personal computer 7 so that a still image in which characters are combined can be monitored.

The image data processed by the personal computer 7 is output to the sublimation type printer 8, and the transparent sheet 1
Printed on the second side of 0. The printed transparent sheet 10 is in a state where left and right images are alternately arranged in a vertical stripe shape.

A parallax barrier is previously printed with black ink on the first surface of the transparent sheet.

Further, in this embodiment, the left and right pixels are interleaved for each pixel in the synthesis of the left and right image data, but this may be interleaved with two or more pixels.

Further, the left and right digital cameras were used as the input means, but other than this, a VTR, a laser disk, a still camera using a magnetic disk, a CD-ROM,
A scanner or the like can be applied. Also, from 2D image signals to 3D
It may be a converter output that can be converted into an image signal.

The stereoscopic photograph of the present invention is not produced by the stereoscopic still video printing system, but is optically processed from the negative film photographed by the stereoscopic still camera and printed on the transparent sheet. May be.

Further, the present invention can be applied to stereoscopic radiography.

[0024]

As described above, according to the present invention, a stereoscopic photograph that can be observed without special glasses can be created without using a lenticular sheet, so that the stereoscopic photograph can be enjoyed at low cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a stereoscopic photograph according to an embodiment of the present invention.

FIG. 2 is a plan view of a first surface and a second surface of a stereoscopic photograph in the present embodiment.

FIG. 3 is a sectional view of a stereoscopic photograph according to another embodiment of the present invention.

FIG. 4 is a block diagram of a stereoscopic still video printing system for producing stereoscopic photographs according to the present invention.

[Explanation of symbols]

 10 Transparent Sheet 11 Parallax Barrier 12 Stereoscopic Image 13 Light Source

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[Procedure amendment]

[Submission date] February 1, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

First, FIG. 1 shows a sectional view of a three-dimensional photograph of the present invention. This three-dimensional photograph is a transparent sheet 1 having a predetermined thickness.
0, the parallax barrier 11 printed on the first surface of the transparent sheet and the stereoscopic image 12 printed on the second surface of the transparent sheet.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

The combined left and right image data is supplied to a personal computer (hereinafter referred to as a personal computer) 6. The personal computer 6 can select an arbitrary scene output from the digital video cameras 1 and 2 as a still image. When this still image selection is executed, a control signal is output to the frame memories 3 and 4. Then, after the image data for each of the left and right frames is written in the frame memory, the image data is read out at a low speed and the synthesizing circuit 5 is read.
Is supplied to.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

Further, characters and the like can be combined with the still image selected in the personal computer 6. Further, a 3D monitor 7 is connected to the personal computer 6 so that a still image in which characters are combined can be monitored.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

The image data processed by the personal computer 6 is output to the sublimation type printer 8, and the transparent sheet 1
Printed on the second side of 0. The printed transparent sheet 10 is in a state where left and right images are alternately arranged in a vertical stripe shape.

Front page continuation (72) Inventor Toshiya Iinuma 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Seiji Okada 2-5-5 Keihan-hondori, Moriguchi-shi, Osaka Sanyo Denki Co., Ltd. (72) Inventor Ken Masutani 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Denki Co., Ltd.

Claims (4)

[Claims] 1. An image for right eye and an image for left eye are formed on the second surface of the transparent sheet at a predetermined pitch in the horizontal direction while forming a vertical stripe-shaped parallax barrier on the first surface of the transparent sheet. A three-dimensional photograph formed by printing a three-dimensional image in which is alternately formed. 2. The three-dimensional photograph according to claim 1, wherein a light source is arranged on the second surface side and the light source is observed from the first surface side. 3. The three-dimensional photograph according to claim 1, wherein a light source is arranged on the first surface side and the light source is observed from the second surface side. 4. The three-dimensional photograph according to claim 1, wherein the parallax barrier is formed of an aluminum film.