KR20020054253A - Apparatuses and Methods for Digital Stereo Video Processing using Decimation/Interpolation Filtering - Google Patents

Abstract

PURPOSE: A device for processing a digital stereo image is provided to perform a decimation filtering and an interpolation filtering for a digital stereo image, to reduce information lost, and to transmit/restore a stereo image in an existing digital video processing device, thereby obtaining a high-quality stereo image. CONSTITUTION: A decimation filter(210) decimation-filters left/right images pictured from video cameras(200, 201). A multiplexer(220) multiplexes the decimation-filtered images. A recorder/transmitter(230) records or transmits the multiplexed image signals. An image separator(240) reproduces, receives, and decodes data recorded or transmitted from the recorder/transmitter, and separates the left image from the right image. An interpolation filter(250) interpolation-filters the separated images to restore to original size. An image display(260) displays the restored images.

Description

Apparatuses and Methods for Digital Stereo Video Processing using Decimation / Interpolation Filtering}

The present invention relates to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, and a method and a computer readable recording medium recording a program for realizing the method. Digital stereo to obtain compatibility with existing devices by transmitting multiplexed images by reducing and filtering by a certain ratio of the number of original video image pixels in either the horizontal or vertical direction of each image. An image processing apparatus and a method thereof, and a computer-readable recording medium having recorded thereon a program for realizing the method.

The methods of processing stereoscopic images in the analog method up to now include color coding, polarization coding, and field sequential technique.

Color coding involves placing two different color filters in front of the camera, taking a picture, and displaying the image so that the observer wears glasses with the same color filters as the picture. The image acquired by the left camera is viewed, and the right eye sees only the image acquired by the right camera to feel a three-dimensional effect. This technique has been used in stereoscopic movies for decades and can be used in three-dimensional television.

However, for real-time TV, that is, TV live broadcasting, it requires electronically synthesizing before transmitting the two signals, additional hardware is required to perform the synchronization of the TV camera, and overall color display is impossible, The image is dark overall, and there is a problem that eye fatigue comes when the alignment is misaligned in the vertical direction.

Polarization coding (polarization coding) uses the characteristics of the electromagnetic plane wave, and mainly uses a polarizing film (Polaroid Film). First, take images from the left and right cameras, record them, and then display them. Attach a polarizer to both the front of the monitor where the left and right images are displayed, and to both eyes of the glasses worn by the observer, and through the half mirror. Make the two images overlap. At this time, each polarizer maintains an angle of 90 ° to each other so that one cannot see the other image through the polarizer, thereby making it possible to feel a three-dimensional effect.

This method has the advantage of being able to express colors, but it requires two image sources, has the disadvantage that brightness is reduced by half mirror, and two independent channels required for left and right images for TV broadcasting. There is a problem that a new production and transmission equipment that can transmit using the frequency is required.

Meanwhile, in order to solve this problem, stereoscopic images may be observed through spatial filtering by using a stereogram in which rows are alternately arranged into a composite image.

The field sequential technique is the most recently proposed technique for displaying stereoscopic images on a single display screen (CRT). The field sequential technique records the left and right images sequentially in a time multiplexer and the same sequence by proper synchronization. As it is displayed by an optical shutter or switch.

However, this method requires twice as many pieces of equipment as a single image to transmit and display two images without reducing the amount of information, which is expensive and complicated in system configuration. In addition, when the switching or shuttering frequency is greater than 60 Hz, which is a conventional TV field frequency, compatibility is inferior and there is a problem that it cannot be applied to an existing video structure.

In addition to the above method, a recently published stereoscopic image recording and display technique uses two micro polarization panels having an electrically passive polarization characteristic to make two patterns corresponding to spatially demodulated left and right images, There is a method of generating a spatially multiplexed image by optically combining, but the above method has a problem that it is difficult to use MPEG-2 compression.

Alternatively, the left and right images are compressed as digital video signals and transmitted through different channels, and the two channels are selected by the receiver, and then restored and output respectively, so that stereoscopic and planar images can be selectively viewed according to the type of the TV receiver. However, there is a problem in that two channels and channel tuning means are required.

As another method, there is a method of subsampling and transmitting or recording the size of the left and right images to 1/2 of the original image in the analog method, separating the two images during reception or playback, and restoring the original size through interpolation. However, there is a problem in that loss of pixel information that is not selected as a sample occurs in the subsampling process, and information about these pixels is not reflected in the interpolation process.

1A and 1B are structural examples of a conventional stereoscopic image processing apparatus.

As shown in FIGS. 1A and 1B, the stereoscopic image processing apparatus includes image recording apparatuses 110 and 150, and image reproducing apparatuses 130 and 170.

In FIG. 1A, the image recording apparatus 110 is an A / D converter 111 and 112 for converting an analog image signal photographed from the cameras 100 and 101 into a digital image signal. A subsampling circuit (113, 114) for sampling by one pixel in a row direction or a column direction to reduce the image size by 1/2, and a multiplexing unit which performs an operation of multiplexing left and right images and combining them into a single image signal ( And an image reproducing apparatus 130, which separates the received signal into left and right images again, and performs an operation of making an image of the original size through interpolation, and the reconstructed image. It includes a display device 132 for displaying the.

The operation of the stereoscopic image processing apparatus configured as described above is as follows.

First, analog video signals photographed from the cameras 100 and 101 are converted into digital video signals using the A / D converters 111 and 112, and the converted video signals are processed by the subsampling circuits 113 and 114. The image size is reduced to 1/2 by sampling by skipping pixel by pixel in the direction or column direction.

The sampled left and right images are multiplexed by the multiplexer 115 to combine the left and right images into one image signal, and the synthesized image signal is transmitted through the transmission path 120.

The signal synthesized and transmitted into the one image signal is separated into the left and right images again by the separation and interpolation circuit 131, and restored to the original size image through interpolation, and the restored image is displayed using the display device 132. Display.

However, the stereoscopic image processing apparatus has a problem in that all the missing pixel information is lost because sub-sampling reduces the image size to 1/2.

In FIG. 1B, the image recording apparatus 150 includes A / D converters 151 and 152 for converting analog image signals photographed from the cameras 140 and 141 into digital image signals, and converts the A / D converted signals into MPEG. Encoders 153 and 154 for performing image compression using the < RTI ID = 0.0 > -2 < / RTI > encoding technique, and a multiplexer 155 for multiplexing the left and right images, and the image reproducing apparatus includes a signal encoded by MPEG-2. The decoders 171 and 172 restore the original signal, and the display device 132 displays the restored image.

The operation of the stereoscopic image processing apparatus configured as described above is as follows.

The analog video signal photographed from the cameras 140 and 141 is converted into a digital video signal using the A / D converters 151 and 152, and the A / D converted signal is converted into an MPEG by the encoders 153 and 154. Image compression is performed using MPEG-2 encoding.

Next, the encoded video is not synthesized into one signal, but is transmitted to the video reproducing apparatus 170 through the transmission path 160 as each signal.

The signals encoded by the respective MPEG-2 are restored by the decoders 171 and 172 to the original signals. The restored image is displayed on the display device 173.

However, the stereoscopic image processing apparatus does not need to separate or interpolate the original left and right images by performing MPEG-2 decoding, but the number of necessary equipment increases because the left and right images are transmitted separately. There was this.

The present invention has been proposed to solve the above problems, and reduces information loss through reduction filtering and interpolation filtering of a digital stereoscopic image, and reduces the loss of information in a conventional digital image processing apparatus. A digital stereoscopic image processing apparatus capable of transmitting and restoring and obtaining high quality stereoscopic images with minimal equipment addition, and a method thereof, and a computer readable recording medium recording a program for realizing the method. There is a purpose.

1A and 1B are structural examples of a conventional stereoscopic image processing apparatus.

2 is a block diagram of an embodiment of a stereoscopic image processing apparatus according to the present invention;

3 is a diagram illustrating an embodiment of a multiplexing method according to the present invention;

4 is a flowchart illustrating an embodiment of a digital stereoscopic image processing method according to the present invention;

* Explanation of symbols for the main parts of the drawings

210: reduction operation unit 220: multiplexing unit

230: recording and transmitting unit 240: image separation unit

250: interpolation operation unit 260: image display unit

An apparatus of the present invention for achieving the above object is, in the digital stereoscopic image processing apparatus using reduction filtering, for receiving a video image to reduce the left and right images in the horizontal or vertical direction to obtain a reduced image (decimation) Reduction operation means; Multiplexing means for combining the left and right images reduced and filtered by the reduction operation means in a horizontal direction or a vertical direction to output one multiplexed image signal; Encoding means for encoding a video signal multiplexed by the multiplexing means; Storage means for storing the video signal multiplexed by the multiplexing means as it is or storing the video signal encoded by the encoding means; And transmission means for transmitting the video signal encoded by the encoding means or the video signal encoded and stored in the storage means.

In addition, another apparatus of the present invention is a digital stereoscopic image processing apparatus using interpolation filtering, comprising: decoding means for decoding data transmitted from the outside or data encoded by the storage means; Image separation means for separating the data decoded by the decoding means or the data read by the storage means into left and right images; Interpolation calculation means for restoring the image separated by the image separation means to an original size by interpolation filtering; And image display means for displaying the image reconstructed by the interpolation calculation means.

On the other hand, the method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, comprising: a first step of receiving a video image to obtain a reduced image through the reduction filtering; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; A fourth step of transmitting an image encoded using the encoding means by using a transmission means; A fifth step of decoding the stereoscopic image signal received through the transmission means; A sixth step of separating the decoded image into left and right images again; A seventh step of restoring the separated left and right images to an original size by performing interpolation filtering; And an eighth step of displaying the restored left and right images through a display device.

In addition, another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, comprising: a first step of receiving a video image and performing reduction image filtering to obtain a reduced image; ; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; A fourth step of storing an image encoded by the encoding means in a storage means; A fifth step of reading and decoding a stereoscopic image signal stored in the storage means; A sixth step of separating the decoded image into left and right images again; A seventh step of restoring the separated left and right images to an original size by performing interpolation filtering; And an eighth step of displaying the restored left and right images through a display device.

In addition, another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, the method comprising: receiving a video image and performing a reduced image filtering to obtain a reduced image; step; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of storing the multiplexed image in the storage means by using the multiplexing means; A fourth step of reading a stereoscopic image signal stored in the storage means and separating the stereoscopic image signal into a left and right image; A fifth step of restoring the separated left and right images to an original size by performing interpolation filtering; And a sixth step of displaying the restored left and right images through a display device.

In addition, another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction filtering, comprising: a first step of receiving a video image and obtaining a reduced image through reduction filtering; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; And a fourth step of transmitting the encoded image using the transmission means.

Another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction filtering, comprising: a first step of receiving a video image and obtaining a reduced image through reduction filtering; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; And a fourth step of storing in the storage means.

Another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction filtering, comprising: a first step of receiving a video image and obtaining a reduced image through reduction filtering; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; And a third step of storing the multiplexed video signal in the storage means.

In addition, another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using interpolation filtering, the first step of decoding a stereoscopic image signal received from outside or encoded and recorded in a storage means ; A second step of separating the left and right images again after decoding; A third step of restoring the separated left and right images to their original sizes by performing interpolation filtering; And a fourth step of displaying the restored left and right images through a display device.

In addition, another method of the present invention is a digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using interpolation filtering, comprising: a first step of reading a stereoscopic image signal recorded in a storage means and separating the stereoscopic image signal into a left and right image again; ; A second step of restoring the separated left and right images to their original sizes by performing interpolation filtering; And displaying the restored left and right images through a display device.

On the other hand, the present invention, the digital stereoscopic image processing apparatus having a large-capacity processor, a first function for receiving a video image and to obtain a reduced image through the reduction filtering the image; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; A fourth function of transmitting an image encoded by the encoding means by using a transmission means; A fifth function of decoding the stereoscopic image signal received through the transmission means; A sixth function of separating the decoded image into left and right images again; A seventh function of restoring the separated left and right images to an original size by performing interpolation filtering; And a computer readable recording medium having recorded thereon a program for realizing an eighth function of displaying the restored left and right images on a display device.

The present invention also provides a digital stereoscopic image processing apparatus having a large-capacity processor, comprising: a first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; A fourth function of storing an image encoded by the encoding means in a storage means; A fifth function of reading and decoding the stereoscopic image signal stored in the storage means; A sixth function of separating the decoded image into left and right images again; A seventh function of restoring the separated left and right images to an original size by performing interpolation filtering; And a computer readable recording medium having recorded thereon a program for realizing an eighth function of displaying the restored left and right images on a display device.

The present invention also provides a digital stereoscopic image processing apparatus having a large-capacity processor, comprising: a first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of storing the multiplexed image in the storage means using the multiplexing means; A fourth function of reading the stereoscopic image signal stored in the storage means and separating the stereoscopic image signal into left and right images again; A fifth function of restoring the separated left and right images to an original size by performing interpolation filtering; And a computer readable recording medium having recorded thereon a program for realizing a sixth function of displaying the restored left and right images on a display device.

The present invention also provides a digital stereoscopic image processing apparatus having a large-capacity processor, comprising: a first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; And a computer readable recording medium having recorded thereon a program for realizing a fourth function of transmitting the encoded image using a transmission means.

The present invention also provides a digital stereoscopic image processing apparatus having a large-capacity processor, comprising: a first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; And a computer readable recording medium having recorded thereon a program for realizing a fourth function of storing in the storage means.

The present invention also provides a digital stereoscopic image processing apparatus having a large-capacity processor, comprising: a first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; And a computer readable recording medium having recorded thereon a program for realizing a third function of storing the multiplexed video signal in the storage means.

The present invention also provides a digital stereoscopic image processing apparatus having a large capacity processor, comprising: a first function of decoding a stereoscopic image signal received from outside or encoded and recorded in a storage means; A second function of splitting back into left and right images after decoding; A third function of restoring the separated left and right images to an original size by performing interpolation filtering; And a computer readable recording medium having recorded thereon a program for realizing a fourth function of displaying the restored left and right images on a display device.

The present invention also provides a digital stereoscopic image processing apparatus having a large capacity processor, comprising: a first function of reading a stereoscopic image signal recorded in a storage means and separating the stereoscopic image signal into left and right images; A second function of restoring the separated left and right images to an original size by performing interpolation filtering; And a computer readable recording medium having recorded thereon a program for realizing a third function of displaying the restored left and right images on a display device.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of an embodiment of a stereoscopic image processing apparatus according to the present invention.

As shown in FIG. 2, the digital stereoscopic image processing apparatus includes a reduction operation unit 210 and a reduction operation unit 210 which perform reduction filtering on each of the left and right images captured by the two video cameras 200 and 201. The multiplexer 220 multiplexes each of the down-filtered images in the multiplexer, a recording and transmitting unit 230 for recording or transmitting the multiplexed video signal in the multiplexer 220, and the recording and transmitting unit 230. After reproducing, receiving, and decoding the data recorded or transmitted in the above), the image separation unit 240 separating the left and right images and interpolating the image separated by the image separation unit 240 restores the original size. And an image display unit 260 for displaying an image reconstructed by the interpolation operation unit 250.

The operation of the digital stereoscopic image processing apparatus according to the present invention configured as described above is as follows.

First, in the reduction operation unit 210, each image obtained from the left and right video cameras 200 and 201 is subjected to a reduction ratio (decimation filtering) of the reduction operation units 213 and 214 so that the number of rows or columns is a predetermined ratio (eg, 1/2) to reduce the image. Here, the format of the image acquired from the video camera is output as an RGB signal, which is an analog signal, or output from the camera in a digital HDTV standard format. In this case, in case of analog RGB signal, A / D converters 111, 112, 151, and 152 as shown in FIGS. 1A and 1B must be provided to convert to digital signals. There is also an apparatus for converting from one digital format to another. For example, in order to be able to convert from the SMPTE digital 292M format to the SMPTE digital 274M, the S / P (serial to parallel) 211 and 212 converters are provided in the reduction operation unit 210. Here, the signal input to the reduction operation unit 210 may be a signal of a video tape recorder (VTR), not necessarily a signal through a camera.

The left and right images reduced and filtered by the reduction operation unit 210 are combined in the horizontal or vertical direction by the multiplexer 220 and output as a single multiplexed image signal through the multiplexer 221. In this case, when the video format needs to be converted, a device such as a parallel to serial (P / S) converter 222 is provided to support the video format.

The video signal multiplexed by the multiplexer 220 is a transmitter 233 using the signal encoded by the encoder 231 (eg, MPEG-2 encoder) in the recorder and transmitter 230 as it is. A signal encoded by the encoding apparatus 231 or encoded by the encoding apparatus 231 is recorded on a storage medium 232 (eg, a DVD), or stored in the storage medium 232 (eg, a video tape) without being encoded.

The video signal transmitted from the recording and transmitting unit 230 is received by a digital TV receiver such as an HDTV through satellite, terrestrial wave, and internet broadcasting. The stereoscopic image signal received or encoded by the digital TV receiver and stored in the storage medium is decoded by the decoding apparatus 241 in the image separator 240, and the stereoscopic image signal decoded or stored in the storage medium is stored in the video output format. Accordingly, the S / P (serial to parallel) converter 241 or as it is input to the separation unit 243 is separated into a left and right image.

The image separated by the separator 242 is inputted to the interpolation calculator 250, and then subjected to interpolation filtering of the interpolation calculators 251 and 252 in the horizontal or vertical direction according to the reduced method. It is restored to the left and right image size.

The left and right images reconstructed by the interpolation operation unit 250 are respectively converted into the SMPTE 274M digital format according to the video output format, or are output as they are in the SMPTE 292M digital format, and when the input is an analog signal, the A / D converter is used. The digitally converted signal is converted into an analog signal through a D / A converter and output. The converted image signal is transmitted to the image display device 261 for display, and the user can feel a three-dimensional effect by wearing polarized glasses or shuttered glasses and observing left and right images.

3 is a diagram illustrating an embodiment of a multiplexing method according to the present invention.

As shown in FIG. 3, in the multiplexing method, the left and right two images are reduced in a horizontal direction by the reduction operation units 213 and 214 to reduce the number of columns of each image to a predetermined ratio (eg, 1/2), A multiplexing method that combines the left image on the left (301), the right image on the right (302), or the left image on the right (302) and the right image on the left (301) and combines them into a single image. Reduce the number of rows of each image by a certain ratio (e.g. 1/2) by performing reduction filtering, then the left image at the top (303), the right image at the bottom (304) or the left image at the bottom (304), There is a multiplexing method of synthesizing a single image by placing the right image on the top (303).

The multiplexing method of combining the left image on the left side (301), the right image on the right side (302) or the left image on the right side (302), and the right image on the left side (301) is combined into a single image. It is easy to implement a single image by combining the left image at the top (303), the right image at the bottom (304) or the left image at the bottom (304), and the right image at the top (303). The multiplexing method has the advantage of less information loss in the horizontal direction where the human eye is sensitive to changes.

4 is a flowchart illustrating a digital stereoscopic image processing method according to the present invention.

As shown in FIG. 4, first, each image obtained from the left and right cameras is reduced and filtered to obtain a reduced image (401), and one multiplexed image is combined in a horizontal direction or a vertical direction to encode the reduced left and right images. The signal is output (402).

Next, the multiplexed video signal is recorded as it is on a storage medium, or encoded through an encoding device (eg, MPEG-2 encoder) and then recorded on a storage medium, or transmitted using a transmission means (403). .

The received or encoded stereoscopic image signal is decoded by a decoding apparatus (404) and then separated into left and right images, or in the case of a stereoscopic image signal stored as it is without encoding, the image signal read from a recording medium is directly converted into a left and right image. Separate (405).

In operation 406, the left and right images are restored to their original size by performing interpolation filtering in the horizontal direction or the vertical direction according to the reduction filtering method.

The restored left and right images are observed in a predetermined manner such as polarized glasses or shuttered glasses and displayed on a TV, a screen, a monitor, or the like so as to feel a three-dimensional effect (407).

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention reduces information loss due to subsampling by a stereoscopic digital image processing method through reduction filtering and interpolation filtering, and minimizes the addition of equipment for broadcasting existing digital TV (HD, SD). High-quality stereoscopic video viewing is effective.

Claims (22)

In the digital stereoscopic image processing apparatus using reduced filtering, Reduction operation means for receiving a video image and reducing and filtering each of the left and right images in a horizontal or vertical direction to obtain a reduced image; Multiplexing means for combining the left and right images reduced and filtered by the reduction operation means in a horizontal direction or a vertical direction to output one multiplexed image signal; Encoding means for encoding a video signal multiplexed by the multiplexing means; Storage means for storing the video signal multiplexed by the multiplexing means as it is or storing the video signal encoded by the encoding means; And Transmission means for transmitting a video signal encoded by the encoding means or a video signal encoded and stored in the storage means Digital stereoscopic image processing apparatus comprising a. The method of claim 1, The reduction operation means, Conversion means for converting the format of the input video image into another digital video format; And Reduction operation unit for reducing the number of rows or columns by reducing the image filtering Digital stereoscopic image processing apparatus comprising a. The method of claim 1, The multiplexing means, A multiplexer for combining the reduced filtered image in a horizontal direction or a vertical direction to output one multiplexed image signal; And Conversion means for converting the format of the converted video into an original digital video format Stereoscopic video image recording and display device comprising a. In the digital stereoscopic image processing apparatus using interpolation filtering, Decoding means for decoding data transmitted from the outside or data stored by being encoded in the storage means; Image separation means for separating the data decoded by the decoding means or the data read by the storage means into left and right images; Interpolation calculation means for reconstructing the image separated by the image separation means to an original size by interpolation filtering; And Image display means for displaying the image reconstructed by the interpolation calculation means Digital stereoscopic image processing apparatus comprising a. A digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, A first step of receiving a video image and performing a reduced filtering on the image to obtain a reduced image; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; A fourth step of transmitting an image encoded using the encoding means by using a transmission means; A fifth step of decoding the stereoscopic image signal received through the transmission means; A sixth step of separating the decoded image into left and right images again; A seventh step of restoring the separated left and right images to an original size by performing interpolation filtering; And An eighth step of displaying the restored left and right images through a display device; Digital stereoscopic image processing method comprising a. A digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, A first step of receiving a video image and performing a reduced filtering on the image to obtain a reduced image; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; A fourth step of storing an image encoded by the encoding means in a storage means; A fifth step of reading and decoding a stereoscopic image signal stored in the storage means; A sixth step of separating the decoded image into left and right images again; A seventh step of restoring the separated left and right images to an original size by performing interpolation filtering; And An eighth step of displaying the restored left and right images through a display device; Digital stereoscopic image processing method comprising a. A digital stereoscopic image processing method applied to a digital stereoscopic image processing apparatus using reduction / interpolation filtering, A first step of receiving a video image and performing a reduced filtering on the image to obtain a reduced image; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of storing the multiplexed image in the storage means by using the multiplexing means; A fourth step of reading a stereoscopic image signal stored in the storage means and separating the stereoscopic image signal into a left and right image; A fifth step of restoring the separated left and right images to an original size by performing interpolation filtering; And A sixth step of displaying the restored left and right images through a display device; Digital stereoscopic image processing method comprising a. In the digital stereoscopic image processing method applied to the digital stereoscopic image processing apparatus using reduction filtering, A first step of receiving a video image and performing a reduced filtering on the image to obtain a reduced image; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; And Fourth step of transmitting the encoded image using the transmission means Digital stereoscopic image processing method comprising a. In the digital stereoscopic image processing method applied to the digital stereoscopic image processing apparatus using reduction filtering, A first step of receiving a video image and performing a reduced filtering on the image to obtain a reduced image; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third step of encoding the multiplexed video signal; And A fourth step of storing in the storage means Digital stereoscopic image processing method comprising a. In the digital stereoscopic image processing method applied to the digital stereoscopic image processing apparatus using reduction filtering, A first step of receiving a video image and obtaining a reduced image through reduction filtering; A second step of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; And A third step of storing the multiplexed video signal in the storage means Digital stereoscopic image processing method comprising a. The method according to any one of claims 5 to 10, The reduction and multiplexing process, Reduced filtering is performed in a horizontal direction, that is, a direction in which the number of columns decreases, so that a single multiplexed signal is output with the left image on the left, the right image on the right, or the right image on the left, and the left image on the right. Digital stereoscopic image processing method. The method according to any one of claims 5 to 10, The reduction and multiplexing process, Reduced filtering is performed in a vertical direction, that is, a direction in which the number of rows decreases so that a single multiplexed signal is output by placing a left image at the top and a right image at the bottom, or a left image at the bottom and the right image at the top. Digital stereoscopic image processing method. In the digital stereoscopic image processing method applied to the digital stereoscopic image processing apparatus using interpolation filtering, A first step of decoding a stereoscopic image signal received from outside or encoded and recorded in the storage means; A second step of separating the left and right images again after decoding; A third step of restoring the separated left and right images to their original sizes by performing interpolation filtering; And A fourth step of displaying the restored left and right images through a display device; Digital stereoscopic image processing method comprising a. In the digital stereoscopic image processing method applied to the digital stereoscopic image processing apparatus using interpolation filtering, A first step of reading a stereoscopic image signal recorded in the storage means and separating the stereoscopic image signal into a left and right image; A second step of restoring the separated left and right images to their original sizes by performing interpolation filtering; And A third step of displaying the restored left and right images through a display device; Digital stereoscopic image processing method comprising a. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; A fourth function of transmitting an image encoded by the encoding means by using a transmission means; A fifth function of decoding the stereoscopic image signal received through the transmission means; A sixth function of separating the decoded image into left and right images again; A seventh function of restoring the separated left and right images to an original size by performing interpolation filtering; And An eighth function of displaying the restored left and right images through a display device; A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; A fourth function of storing an image encoded by the encoding means in a storage means; A fifth function of reading and decoding the stereoscopic image signal stored in the storage means; A sixth function of separating the decoded image into left and right images again; A seventh function of restoring the separated left and right images to an original size by performing interpolation filtering; And An eighth function of displaying the restored left and right images through a display device; A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of storing the multiplexed image in the storage means using the multiplexing means; A fourth function of reading the stereoscopic image signal stored in the storage means and separating the stereoscopic image signal into left and right images again; A fifth function of restoring the separated left and right images to an original size by performing interpolation filtering; And A sixth function of displaying the restored left and right images through a display device; A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; And Fourth function of transmitting the encoded image using the transmission means A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; A third function of encoding the multiplexed video signal; And A fourth function for storing in the storage means A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of receiving a video image and obtaining a reduced image through reduction filtering; A second function of multiplexing the reduced left and right images and outputting them as one multiplexed image signal; And A third function of storing the multiplexed video signal in the storage means A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of decoding a stereoscopic image signal received from outside or encoded and recorded in the storage means; A second function of splitting back into left and right images after decoding; A third function of restoring the separated left and right images to an original size by performing interpolation filtering; And A fourth function of displaying the restored left and right images through a display device A computer-readable recording medium having recorded thereon a program for realizing this. In a digital stereoscopic image processing apparatus having a large capacity processor, A first function of reading the stereoscopic image signal recorded in the storage means and separating the stereoscopic image signal into left and right images again; A second function of restoring the separated left and right images to an original size by performing interpolation filtering; And A third function of displaying the restored left and right images through a display device; A computer-readable recording medium having recorded thereon a program for realizing this.