KR970012585A - Encoding Control Device of Movie Compressed Disk - Google Patents

Abstract

The present invention relates to an encoding control apparatus for moving picture compression disks. The video source 40 having an SIF image to be encoded, and a preprocessing unit 42 for performing preprocessing by filtering luminance and color difference signals of the SIF image. ), An adder 44 that adds the preprocessed video data and the frame data whose motion is compensated for, the original video data according to the I picture from the preprocessor 42 or the video according to the P picture through the adder 44. A switching unit 46 for selectively passing data, a DCT unit 48 for performing DCT processing for converting video data passing through the switching unit 46 into coefficients in a frequency domain, and the DCT processed I picture and P Filtering means (50,52) for filtering to separate the low-frequency components (I _LF , P _LF ) and high frequency components (I _HF , P _HF ) in the coefficient value for the video data of the picture, the filtered and separated I picture and P Picture Low-frequency component (I _LF, P _LF) and high frequency component (I _HF, P _HF) is separated switching 54 is switched so as to pass in sequence, the separated I pikchwo and low-frequency component of the P pikchwo (I _LF, P _LF ) and a quantization unit 56 for quantizing the high frequency components I _HF and P _HF , and the P picture whose motion of the image screen is compensated by estimating the motion through the video data of the preprocessing unit 42. Motion estimation / compensation means 58 for transmitting the frame data according to the data to the adder 44, the low frequency components I _LF and P _LF and the high frequency components I _HF and P _{HF of} the quantized I and P pictures. A variable length encoder 62 for DLC processing the included frame data on the basis of the motion vector from the macroblock shape determination unit 60, a channel buffer 64 for buffering the DLC processed video stream data for each channel; By combining the video stream data and audio stream data, a video disc ( And a program stream generation unit 66 for generating program stream data to be recorded in step 68).

Description

Encoding Control Device of Movie Compressed Disk

Since this is an open matter, no full text was included.

5 is a block diagram showing the configuration of an encoding control apparatus for a moving picture compressed disk according to the present invention.

Claims (3)

A video source 40 having an SIF image to be encoded, a preprocessing unit 42 for pre-processing the luminance signal and the chrominance signal of the SIF image, and preprocessed video data and frame data whose motion is compensated for. An adder 44 which adds s, a switching unit 46 for selectively passing original video data according to an I picture from the preprocessor 42 or video data according to a P picture through the adder 44, and the switching. A DCT unit 48 for performing DCT processing for converting video data passing through the unit 46 into coefficients in the frequency domain, and a low frequency component (I _LF) in coefficient values for the video data of the DCT-processed I-picture and P-picture. , P _LF ) and filtering means (50,52) to be separated into high frequency components (I _HF , P _HF ), the low frequency components (I _LF , P _LF ) and the high frequency components of the filtered and separated I pictures and P pictures to (I _HF, P _HF) is orderly Removing the switching (54), which is switched to and the separated I pikchwo and low-frequency component of the P pikchwo (I _LF, P _LF) and high frequency components of the quantization unit 56, the quantization to quantize the (I _HF, P _HF) Motion estimation / compensation means 58 for estimating the motion of the frame data through the video data of the preprocessor 42 and transmitting the frame data according to the P picture whose motion of the video screen is compensated to the adder 44; DLC processing of frame data including low frequency components (I _LF , P _LF ) and high frequency components (I _HF , P _HF ) of the quantized I picture and P picture based on the motion vector from the macroblock shape determiner 60 Variable length encoder 62, a channel buffer 64 for buffering the DLC processed video stream data for each channel, and program stream data for combining the video stream data and the audio stream data to be recorded on the video disc 68. Frog to generate Encoding control device for a moving picture compressed disc, characterized in that it comprises a ram stream generating unit (66). The low frequency components I _LF and P _LF of the I picture and the P picture filtered by the filtering means 50 and 52 are filtered by a low pass filter LPF, and the I picture and the P picture. The high frequency component (I _HF , P _HF ) of the encoding control device for a moving picture compressed disc, characterized in that the filtering by a high pass filter (HPF). The low frequency component (I _LF , P _LF ) and the high frequency component (I _HF , P _HF ) of the I picture and the P picture through the filtering means (50, 52). Encoding control device for a moving picture compressed disc, characterized in that the switching to pass in the order of I _{LF →} I _{HF →} P _{LF →} P _HF . ※ Note: The disclosure is based on the initial application.