JPH0292188A - Stereoscopic printing device - Google Patents

Abstract

PURPOSE:To make it unnecessary to stop a field and discriminate right end left pictures by successively reading frame video signals from the first frame in a designated area to the last frame in units of a frame, and outputting them to a printer. CONSTITUTION:A solid video signal, whose frame consists of the video field for a left eye and that for a right eye, is stored into a field memory 6 in units of a frame. When a pair of right and left videos re printed, the frame video signal of the designated video is read in unit of a frame from the field memory 6, outputted to a printer 11, when the continuous videos are printed, the frame video signals from the first frame in the designated area up to the last frame are successively read in units of a frame from the field memory 6, and outputted to the printer 11. Thus, it is made unnecessary to stop the field and discriminate the right and left pictures by an operator.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a three-dimensional printing apparatus that creates a stereo pair from three-dimensional video signals.

<Prior Art> Conventionally, this type of 3D printing device receives a 3D video signal from a recording/playback device such as a VTR, and freezes the screen using functions such as pause and frame advance of the recording/playback device. However, there is a system that prints the still video to create a stereo pair.

By the way, a stereo pair is used to view stereoscopic images, and as shown in Figure 4, a stereo pair is a pair of photographs, pictures, etc. for the left eye and for the right eye, arranged horizontally on the left and right, respectively. It is something.

To view this stereo pair in 3D, hold the stereo pair horizontally with both hands about 25 cm in front of both eyes, relax your eyes as if looking into the distance, and view the left picture with your left eye, and the right picture with your right eye. When you look at a picture, the left and right images come together and become one, giving you a three-dimensional view. This is called macroscopic stereopsis. Furthermore, stereoscopic viewing can be easily achieved by using a stereoscope.

In this way, stereo pairs can easily provide stereoscopic viewing without the need for any tools, and are therefore used in a wide range of fields, including presentations at academic conferences, creation of topographic maps, and medical care.

<Problems to be Solved by the Invention> By the way, the video signal for creating this stereo pair uses a stereoscopic video signal in which one frame consists of a field of video for the left eye and a field of video for the right eye. 1. Conventional 3D printing devices print still images, so recording and playback is equipped with a field freeze function that alternately displays fields for the left image and fields for the right image. equipment was needed.

Another drawback is that it is difficult to distinguish whether the image stopped at - is the left image or the right image, and the operator must rely on the operator to distinguish between the left and right images.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a three-dimensional printing device that does not require an operator to discriminate between left and right images and does not require a recording/playback device equipped with a field static function.

<Means for Solving the Problems> In order to achieve the above object, the present invention receives a stereoscopic video signal in which one frame consists of a field of video for the left eye and a field of video for the right eye. In a stereoscopic printing device in which an image for the eyes and an image for the right eye are printed separately by a printer, a frame counting means for counting frames of the stereoscopic image signal, and a field of the stereoscopic image signal for the left eye are provided. field determining means for determining whether the field is for the right eye, and a plurality of frame areas each including a left eye field area for storing the left eye field and a right eye field area for storing the right eye field. field memory,
In response to the output from the frame counting means and the output from the field determining means, the stereoscopic video signal is sequentially stored frame by frame in a left eye field area and a right eye field area of a predetermined frame area of the field memory. When printing a pair of left and right images, specify the frame of the image to be printed in frame units, and when printing a continuous image, specify the first frame and last frame of the area to be printed. When printing a pair of left and right images based on the print image specifying means that specifies the first frame unit and the signal from the print image specifying means, the image signal of the specified image frame is transferred from the field memory. When reading out frame by frame and outputting it to the above printer to print continuous video, the video signals of the frames from the first frame to the last frame in the specified area are read frame by frame from the field memory in order. It is characterized by comprising a control means for reading out and outputting it to the printer.

<Operation> The frame counting means counts frames of a stereoscopic video signal in which one frame consists of a field of video for the left eye and a field of video for the right eye, and the two fields of the stereoscopic video signal are for the left eye. A field determining means determines whether the field is a field or a field for the right eye. Then, the video signal storage means receives the output from the frame counting means and the output from the field determination means, and sequentially stores the video signal frame by frame into the left eye field area and right eye field area of a predetermined frame area of the field memory. Stored in the ophthalmic field area. On the other hand, when printing a pair of left and right images, the print video specifying means specifies the frame of the video to be printed in frame units, and when printing a continuous video, the print video specifying means specifies the first frame and last frame of the area to be printed. Specify in frames. When the control means prints a pair of left and right images based on the signal from the print image specifying means, the control means reads the video signal of the frame of the specified image frame by frame from the field memory and prints the video signal to the printer. When printing consecutive images, the video signals of the frames from the first frame to the last frame of the designated area are sequentially read frame by frame from the field memory and output to the printer.

Therefore, there is no need for the operator to hold the field still and distinguish between left and right images, so anyone can easily create a stereo pair for each specified image without making a mistake between left and right images. can create consecutive stereo pairs.

<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

FIG. 1 is a block diagram showing the circuit configuration of an embodiment of the present invention.

In FIG. 1, I is a VTR 12 that records and reproduces a stereoscopic video signal in which one frame consists of a left eye video field and a subsequent right eye video field. This is a monitor that displays In addition, 3 is a frame count circuit that counts the frames of the stereoscopic video signal output from the TRI, and 4 determines whether the video of the stereoscopic video signal is for the left eye or the right eye. 5 is an A/D converter for converting the stereoscopic video signal into a digital signal; 6 is a left eye field area for storing a left eye field of the stereoscopic video signal converted into the digital signal; This field memory includes a plurality of frame areas each consisting of a right-eye field area that stores a right-eye field. Further, 7 is a control section, and 8 is an operation section. This control unit 7 includes a CPU 71. Program ROM72 and work R
AM73, which controls the VTR 1 in response to instructions from the operation section 8, and controls the field memory 6 frame by frame based on information from the frame count circuit 3 and field determination circuit 4. Controls writing and reading for each eye field and right eye field. Further, 9 is a D/A converter, 10 is a printer interface, and 11 is a printer.

FIG. 2 is a diagram showing an example of the stereoscopic video signal input to the field memory 6, the state in which this stereoscopic video signal is stored in the field memory 6, and the stereoscopic video signal output from the field memory 6. , FIG. 3 is a flowchart showing the operation of this embodiment.

The operation of this embodiment will be explained below according to the flowchart in FIG.

First, using the operation unit 8, an instruction is input to either create a single stereo pair or create a stereo pair of consecutive scenes. Then, send the videotape containing the stereoscopic video signal containing the scene for which you want to create a stereo pair to VT.
Play it on R1 and watch it on monitor 2. The video signal output from this VTRI is A/D converted by an A/D converter 5,
As shown in FIG. 2, all data from memory (2) to memory (n) are recorded in a pair of left and right field memories 6. The contents recorded in this field memory 6 are the D/A
A frame is displayed on the monitor 2 via the converter 8 and confirmed. Next, after stopping the VTR, the following operations are performed in accordance with instructions input through the operation section 8.

When creating 01 stereo pairs, use the operation unit 8 to operate the changeover switch in the field memory 6 to call up and specify the scene for which you want to create a stereo pair, and information representing the frames of that scene is stored in the RAM 7.
It is stored in 3. Then, the control unit 7 reads the frame of the called scene from the field memory 6 based on the above information, outputs it to the printer 11 via the D/A converter 9 or via the printer interface 10, and prints the left and right frames simultaneously. Do out.

■When creating a stereo pair of continuous scenes Similarly to ■, operate the changeover switch in the field memory 6 from the operation unit 8, specify the start and end of the continuous scene while checking on the monitor 2, and the start and end frames is specified and stored in the RAM 73. Then, the CPU 71 sequentially reads out the left eye field and the right eye field separately from the field memory for frames from the first frame to the last frame, and sends them to the printer 11 via the D/A converter 9 or the printer interface 10. Output. Then, as shown in FIG. 2, the designated area of the screen is printed out simultaneously on both the left and right sides.

When inputting video from the VTR 1 to the field memory 6, if the continuous scene is too long to fit in the field memory 6, stop the V'l''R1 and rewind it. Then, print out the video. After this is completed, playback is performed, and the frame next to the last frame that was previously imported into the field memory 6 is sequentially imported into the field memory 6, and then printed out.In this way,
(2) By repeating the control of vR1, the loading of images into the field memory 6, and the printing out to the printer 11, a stereo pair can be created even if the continuous scene is long.

In this way, when storing a stereoscopic video signal in which one frame consists of a left-eye video field and a right-eye video field in the field memory 6 frame by frame, and printing a pair of left and right images, , reads the video signal of the specified video frame from the field memory 6 frame by frame and outputs it to the printer II, and when printing continuous video, from the first frame to the last frame in the designated area. frame video signals are sequentially read out frame by frame from the field memory 6 and output to the printer 11, so there is no need for the operator to hold the field still and distinguish between left and right images, and therefore, it is possible to confuse left and right images. Anyone can easily create a stereo pair for each specified image, and
You can create a stereo pair of images in a specified range consecutively.

<Effects of the Invention> As is clear from the above, according to the three-dimensional printing device of the present invention, there is no need for the operator to hold the field still to distinguish between the left and right images, and therefore anyone can easily print the image without making a mistake between left and right images. , it is possible to create a stereo pair for each specified image, and it is also possible to create a stereo pair of images in a specified range consecutively.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of an embodiment of the present invention, and FIG. 2 shows a stereoscopic video signal input to the field memory in the above embodiment and a state in which this stereoscopic video signal is stored in the field memory. FIG. 3 is a flowchart showing the operation of the above embodiment, and FIG. 4 is a diagram showing an example of a stereo pair. 1...VTR, 2...Monitor, 3...Frame count circuit, 4...Field judgment circuit, 6...Field memory, 7...Control unit, 8...Operation unit, 11...Printer.

Claims (1)

[Claims] (1) Receive a stereoscopic video signal in which one frame consists of a left-eye video field and a right-eye video field, and print the left-eye video and right-eye video separately using a printer. In the stereoscopic printing apparatus, a frame counting means for counting frames of the stereoscopic video signal; a field determining means for determining whether a field of the stereoscopic video signal is a field for a left eye or a field for a right eye; a field memory comprising a plurality of frame areas each consisting of a left eye field area for storing a left eye field and a right eye field area for storing a right eye field; an output from the frame counting means; video signal storage means for receiving the output from the field determination means and sequentially storing the stereoscopic video signal frame by frame in a left eye field area and a right eye field area of a predetermined frame area of the field memory; A print video specifying means for specifying a frame of the video to be printed in frame units when printing a video, and specifying a first frame and a last frame of a print area in frame units when printing continuous video; , when printing a pair of left and right images based on the signal from the print image specifying means,
If the video signal of the specified video frame is read frame by frame from the above field memory and output to the above printer to print continuous video, the frames from the first frame to the last frame of the specified area 3. A three-dimensional printing apparatus, comprising: control means for sequentially reading video signals from the field memory frame by frame and outputting the video signals to the printer.