JPH0632483B2 - 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. Based on a signal from the print image designating unit that designates the frame of the video image to be printed on a frame-by-frame basis when specifying a frame unit and printing a plurality of non-contiguous images, a pair of left and right images is output. When printing the image of, the image signal of the frame of the specified image is When reading out from the field memory in frame units and outputting to the printer to print continuous video, the video signals of the frames from the first frame to the last frame in the specified area are sequentially output from the field memory in frame units. When reading out and outputting to the printer and printing a plurality of images that are not continuous, a control means for sequentially reading out image signals of frames of a specified image from the field memory in frame units and outputting to the printer. It is characterized by having.

<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 for each frame, and when printing a plurality of videos that are not continuous, specify the frame of the video to be printed for each frame. Then, the control means, based on the signal from the print image designation means,
When printing a pair of left and right images, the video signals of the frames of the specified video are read from the field memory in frame units and output to the printer. When printing continuous video, the specified area When the video signals of the frames from the first frame to the last frame are sequentially read from the field memory in frame units and output to the printer, and when printing multiple non-continuous videos, the specified video The frame video signal is sequentially read from the field memory in frame units 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, and anyone can easily make a stereo pair for each specified image without making a mistake on the left and right, and also for the images in the specified range. The stereo pair of can be made consecutively, and the stereo pair of a plurality of images which are not designated can be made consecutively.

<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. The control unit 7 controls the VTR 1 in response to an instruction from the operation unit 8 and also outputs information from the frame count circuit 3 and the field determination circuit 4. In addition, 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 either creates only one stereo pair, creates a stereo pair of consecutive scenes, or creates a stereo pair of only necessary scenes among the consecutive scenes. Enter the instructions. Then, a video tape containing a stereoscopic video signal including a scene for which a stereo pair is to be created is played back on the VTR 1 and viewed on the monitor 2. This VT
The video signal output from R1 is A / D converted by the A / D converter 5.
A field memory 6 which has been D-converted and has a left-right pair from memory-1 to memory-n as shown in FIG.
Recorded in. The contents recorded in the field memory 6 are displayed as a frame on the monitor 2 via the D / A converter 8 and are confirmed. 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, information representing the scene is stored in the RAM 73. 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 it to the printer 11 via the D / A converter 9 or the printer interface 10.
Print out right and left simultaneously.

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 6 separately for the left eye field and the right eye field, and then the printer 11 via the D / A converter 9 or the printer interface 10.
Output to. Then, the screens in the specified range are printed out simultaneously on the left and right sides.

As in the case of creating a stereo pair of only the necessary scenes in a continuous case, by operating the changeover switch of the field memory 6 from the operation unit 8 and confirming on the monitor 2 and specifying the necessary scenes in the order in which they are to be output, Information representing the frames of the scene is stored in the RAM 73 in the designated order. Then, the CPU 71 sequentially reads the designated frame from the field memory 6 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, the designated screens are sequentially printed out simultaneously on the left and right sides.

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 signal of the frame of the designated video is read from the field memory 6 in frame units and output to the printer 11 to print continuous video, from the first frame to the last frame of the designated area When the video signals of the frames are sequentially read from the field memory 6 in frame units and output to the printer 11 to print a plurality of non-continuous videos, the video signals of the frames of the designated video are transferred to the field memory. Since the image data is sequentially read out from the frame 6 and output to the printer 11, It is not necessary to make the right and left images distinct by holding the stand still, so anyone can easily make a stereo pair for each specified image without making a mistake on the left and right, and also make a stereo pair of images in the specified range. It can be made consecutively, and a stereo pair of a plurality of images which are not designated and consecutive can be made consecutively.

<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 discriminate the left and right images, and therefore, anyone can easily make a right and left mistake. , You can create a stereo pair for each specified image, you can also make a stereo pair of images in the specified range continuously, and you can also make a continuous stereo pair of multiple non-specified images. You can make it.

[Brief description of 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 input to the field memory in the above embodiment and a state in which the stereoscopic video signal is stored in the field memory. FIG. 3 is a diagram showing an example of a stereoscopic video signal output from the field memory, FIG. 3 is a flow chart 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 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, specify the first frame and the last frame of the area to be printed in frame units, and when printing multiple non-contiguous images, specify the frame of the video to be printed in frame units. And a pair of left and right images are printed based on the signal from the means and the print image designating means, the image signals of the frames of the designated image are read from the field memory in frame units and output to the printer. , When printing continuous video, from the first frame to the end of the specified area When the video signals of the frames up to the frame are sequentially read from the field memory in frame units and output to the printer to print a plurality of non-continuous videos, the video signals of the frames of the specified video are transferred to the field. A three-dimensional printing apparatus comprising: a control unit that sequentially reads from a memory in frame units and outputs the frame to the printer.