JPH0632484B2 - 3D printing device - Google Patents

Description

The present invention relates to a stereoscopic printing apparatus that creates a stereo pair from stereoscopic video signals.

<Prior Art> Conventionally, a stereoscopic printing apparatus of this type receives a stereoscopic video signal from a recording / reproducing apparatus such as a VTR, and freezes the screen by using a function of the recording / reproducing apparatus such as pause and frame advance. However, there is one that prints the still image and creates a stereo pair.

By the way, a stereo pair is used for stereoscopic viewing of a stereoscopic image. As shown in FIG. 4, left-eye and right-eye photographs, pictures, etc. are arranged horizontally to the left and right respectively. It is a thing.

To stereoscopically view this stereo pair, hold the stereo pair horizontally with your hands about 25 cm in front of your eyes, relax your eyes as if you are looking at a distance, and use the left eye to draw the left picture and the right eye to the right picture. When you look at the picture, the left and right images come closer to each other and you can see them in stereo. This is called naked-eye stereoscopic vision. Also, stereoscopic viewing can be easily performed by using a stereoscopic mirror.

In this way, the stereo pair can be easily viewed stereoscopically without the need for tools, so it is used in a wide range of fields such as presentations at academic conferences, creation of topographic maps, and medical fields.

<Problem to be Solved by the Invention> By the way, as a video signal for creating this stereo pair, a stereoscopic video signal in which one frame is composed of a field of a video for the left eye and a field of a video for the right eye is used. However, since the conventional stereoscopic printing device is designed to print a still image, a recording / playback device having a field still function for alternately displaying a left image field and a right image field in a still state is provided. Was needed. In addition, there is a drawback that it is difficult to distinguish a paused image from a left image and a right image, and the left and right images must be discriminated only by the operator.

Therefore, an object of the present invention is to provide a stereoscopic printing apparatus that does not require an operator to distinguish between left and right images and does not require a recording / playback apparatus having a field stillness function.

<Means for Solving the Problems> In order to achieve the above object, according to the present invention, one frame receives a stereoscopic video signal including a left eye image field and a right eye image field, In a stereoscopic printing apparatus in which an image for the eye and the image for the right eye are separately printed 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 Field determining means for determining whether the field is for the right eye or a field for the right eye, and a plurality of frame areas 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 with
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 for each frame in a left eye field area and a right eye field area of a predetermined frame area of the field memory. Video signal storage means, and when printing a pair of left and right video, specify the frame of the video to be printed in frame units, and when printing consecutive video, select the first frame and the last frame of the printing area. When a pair of left and right images are printed based on a print image designating unit that designates in units of frames and a signal from the print image designating unit, the image signals of the frames of the designated image are separated from the field memory to the left and right. To print on the above printer and print continuous video. Of the video signals of the frames of the selected area, the video signal of one of the left and right fields is sequentially read from the field memory and output to the printer, and the video signal of the other of the left and right fields is sequentially output from the field memory. And a control means for reading out and outputting to the printer.

<Operation> The frame counting means counts the frames of the stereoscopic video signal in which one frame is composed of the field of the video for the left eye and the field of the video for the right eye, and whether the field of the stereoscopic video signal is the field for the left eye. The field determination means determines whether the field is for the right eye. The video signal storage means outputs the output from the frame counting means,
In response to the output from the field determination means, the video signal is sequentially stored for each frame in the left eye field area and the right eye field area of a predetermined frame area of the field memory. On the other hand, when the pair of left and right images is printed, the print image designating unit designates the frames of the image to be printed on a frame-by-frame basis, and when printing consecutive images, the first frame and the last frame of the area to be printed. Is specified in frame units. Then, when the control means prints a pair of left and right images on the basis of the signal from the print image designating means, the image signals of the frames of the designated images are read out from the field memory separately on the left and right sides and the printer is read. If you want to output the continuous video, output the video signal of one of the left and right fields among the video signals from the first frame to the last frame of the specified area in order from the above field memory. After reading out and outputting to the printer, the video signal of the other field on the left or right side is read out in the frame order from the field memory and output to the printer.

Therefore, it is not necessary for the operator to determine the left and right images by keeping the field still, so anyone can easily make a stereo pair separately for each specified image without making a mistake in the left and right. Stereo pairs of range images can be created consecutively on the left and right.

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

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

In FIG. 1, reference numeral 1 is a VTR for recording / reproducing a stereoscopic video signal in which one frame is composed of a left eye video field and a right eye video field, and 2 is a stereoscopic video signal. It is a monitor that displays the video. Further, 3 is a frame counting circuit for counting the frames of the stereoscopic video signal output from the VTR 1 and 4
Is a field determination circuit for determining whether the video of the stereoscopic video signal is a video for the left eye or a video for the right eye, 5 is an A / D converter for converting the stereoscopic video signal into a digital signal, 6 Is a field memory having a plurality of frame areas including a left-eye field area for storing a left-eye field of the stereoscopic video signal converted into the digital signal and a right-eye field area for storing a right-eye field. Is. Further, 7 is a control unit and 8 is an operation unit. The control unit 7 is composed of a CPU 71, a program ROM 72 and a work RAM 73, and controls the VTR 1 in response to an instruction from the operation unit 8 and has information from the frame count circuit 3 and the field determination circuit 4. Then, the writing / reading control is performed for each frame of the field memory 6 and for each of the left-eye field and the 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 a stereoscopic video signal input to the field memory 6, a state in which the stereoscopic video signal is stored in the field memory 6, and an example of the stereoscopic video signal output from the field memory 6. FIG. 3 is a flow chart showing the operation of this embodiment.

The operation of this embodiment will be described below with reference to the flowchart of FIG.

First, the operation unit 8 inputs an instruction to create only one stereo pair or to create a stereo pair of consecutive scenes. Then, VT the videotape containing the stereoscopic video signal including the scene where you want to create a stereo pair.
Play on R1 and watch on monitor 2. The video signal output from the VTR 1 is A / D converted by the A / D converter 5,
As shown in FIG. 2, all the data from memory-1 to memory-n are recorded in the left and right field memories 6. The contents recorded in the field memory 6 are D /
The frame is displayed and confirmed on the monitor 2 via the A converter 8. Next, after stopping the VTR, the following operation is performed in accordance with the instruction input from the operation unit 8.

When creating one stereo pair When the changeover switch of the field memory 6 is operated from the operation unit 8 to call up and specify a scene for which a stereo pair is to be created, the information representing the frame of the scene is stored in the RAM 7
3 is stored. Then, the control unit 7 reads out the frame of the called scene from the field memory 6 based on the above information, and outputs the frame to the printer 11 separately via the D / A converter 9 or the printer interface 10 to the left and right. , Print out left and right separately.

Similar to the case of creating a stereo pair of continuous scenes, if you operate the changeover switch of the field memory 6 from the operation unit 8 and specify the start and end of continuous scenes while checking on the monitor 2, the start and end frames are specified. And stored in the RAM 73. And the CPU 71
Reads the frames from the first frame to the last frame sequentially from the field memory separately for the left eye field and the right eye field and outputs them to the printer 11 via the D / A converter 9 or the printer interface 10. Then, as shown in FIG. 2, only the left screen in the designated range is sequentially printed out, and then only the right screen is sequentially printed out. By setting the printout order on the operation unit 8, the right screen can be set first.

When a video is input from the VTR 1 to the field memory 6, if the continuous scenes are long and the field memory 6 cannot be fully filled, the VTR 1 is temporarily stopped and rewound. Then, after the printout is completed, reproduction is performed, the frames next to the last frame captured in the field memory 6 last time are sequentially captured in the field memory 6, and then the printout is performed. Thus, VT
R1 control, image capture to field memory 6,
By repeating the printout to the printer 11, a stereo pair can be created even when a continuous scene is long.

As described above, when one frame stores a stereoscopic video signal including a left-eye video field and a right-eye video field in the field memory 6 on a frame-by-frame basis and prints a pair of left and right videos, When the video signals of the frames of the specified video are separately read from the field memory 6 and output to the printer 11 and the continuous video is printed, the left and right of the video signals of the frames of the specified area are printed. After the video signal of one of the fields is sequentially read from the field memory 6 and output to the printer 11, the video signal of the other field of the left and right is sequentially read from the field memory 6 and output to the printer 11. Therefore, the operator does not have to stop the field to distinguish the left and right images, and Anyone easily without mistake,
A stereo pair can be created separately for each of the specified images, and a stereo pair of images in the specified range can be created separately for each of the left and right.

<Effects of the Invention> As is apparent from the above, according to the three-dimensional printing apparatus of the present invention, it is not necessary for the operator to stop the field to determine the left and right images, and therefore, anyone can easily make a right or left mistake. , A stereo pair can be made separately for each left and right for each designated image, and an image in a designated range can be made continuously for each left and right stereo pair.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a circuit configuration of an embodiment of the present invention, and FIG. 2 is a stereoscopic video signal inputted to a field memory in the above embodiment, and this stereoscopic video signal is the above-mentioned. FIG. 4 is a diagram showing an example of a stereoscopic video signal output from the field memory and a state of being stored in the field memory; FIG. 3 is a flowchart showing the operation of the above embodiment; FIG. 4 is an example of a stereo pair. is there. 1 ... VTR, 2 ... monitor, 3 ... frame counting circuit, 4 ... field determination circuit, 6 ... field memory, 7 ... control section, 8 ... operation section, 11 ... printer.

Claims (1)

[Claims] 1. A printer for receiving a left-eye image and a right-eye image separately by receiving a stereoscopic image signal in which one frame includes a left-eye image field and a right-eye image field. In a three-dimensional printing apparatus configured to perform printing by means of a frame counting means for counting the frames of the three-dimensional video signal, and a field determination means for determining whether the field of the three-dimensional video signal is a left-eye field or a right-eye field. And a field memory having a plurality of frame areas including a left-eye field area for storing a left-eye field and a right-eye field area for storing a right-eye field, and an output from the frame counting means. In response to the output from the field determination means, the stereoscopic video signal is sequentially stored for each frame in the field memory. Video signal storage means for storing in the left eye field area and right eye field area of the constant frame area, and when printing a pair of left and right images, specify the frame of the image to be printed in frame units and When printing, when printing a pair of left and right images based on the print image designating means for designating the first frame and the last frame of the area to be printed in frame units, and the signal from the print image designating means, , When the video signals of the specified video frame are read separately from the field memory and output to the printer and the continuous video is printed, the left or right of the video signals of the frames of the specified area The video signal of one of the fields is sequentially read from the field memory and output to the printer. And then, three-dimensional printing apparatus, characterized in that the video signal of the left or right other field is read in order from the field memory and a control means for outputting to the printer.