KR950010630A - Video encoding device - Google Patents

Video encoding device Download PDF

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Publication number
KR950010630A
KR950010630A KR1019930018682A KR930018682A KR950010630A KR 950010630 A KR950010630 A KR 950010630A KR 1019930018682 A KR1019930018682 A KR 1019930018682A KR 930018682 A KR930018682 A KR 930018682A KR 950010630 A KR950010630 A KR 950010630A
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KR
South Korea
Prior art keywords
video encoding
encoding apparatus
image
control means
video signal
Prior art date
Application number
KR1019930018682A
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Korean (ko)
Inventor
임종태
Original Assignee
배순훈
대우전자 주식회사
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930018682A priority Critical patent/KR950010630A/en
Publication of KR950010630A publication Critical patent/KR950010630A/en

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Abstract

본 발명은 구조가 간단하면서도 영상을 정해진 전송율로 전송하기 위한 전처리를 영상에 따라 적응적으로 실행할 수 있도록 한 동영상 부호화장치에 관한 것으,로 입력되는 영상신호를 전처리부를 통해 로패스 필터링하고 이 필터링된 영상신호에 대해 움직임 추정/보상을 수행하여 차분신호를 추출하며 이 추출된 차분신호를 이산코인변한 및 양자화수단을 통해 부호화하여 버퍼 제어수단을 통해 부호화된 영상신호를 출력하는 동영상 부호화장치에 있어서 버퍼 제어수단으로부터의 양자화 파라메터에 의거하여 전처리부의 로패스 필터링을 조절하는수단을 더욱 구비함으로서 구조의 간소화가 도모되면서도 전송되어 복원된 영상의 화질열화를 방지하도록 한 것이다.The present invention relates to a video encoding apparatus that has a simple structure and is capable of adaptively performing a preprocessing for transmitting an image at a predetermined data rate according to an image. In the video encoding apparatus for performing motion estimation / compensation for a video signal to extract a differential signal, and encoding the extracted differential signal through discrete coin change and quantization means to output the encoded video signal through a buffer control means. The apparatus further includes a means for adjusting the low pass filtering of the preprocessor based on the quantization parameter from the control means to prevent the deterioration of the image quality of the transmitted and reconstructed image while simplifying the structure.

Description

동영상 부호화장치Video encoding device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 동영상 부호화장치의 블럭 구성도.1 is a block diagram of a video encoding apparatus according to the present invention.

제2도는 종래의 동영상 부호화장치의 블럭 구성도.2 is a block diagram of a conventional video encoding apparatus.

Claims (2)

입력되는 영상신호를 전처리부를 통해 로패스 필터링 하고, 이 필터링된 영상신호에 대해 움직임 추정/보상을 수행하여 차분신호를 추출하며, 이 추출된 차분신호를 이산코사인변한 및 양자화수단을 통해 부호화하여 버퍼 제어수단을 통해 부호화된 영상신호를 출력하는 동영상 부호화장치에 있어서 상기 버퍼 제어수단으로부터의 양자화 파라메터에 의거하여 전처리부의 로패스 필터링을 조절하는수단을 더욱 포함하여 이루어진 것을 특징으로 하는 동영상 부호화장치.Low pass filtering the input video signal through a preprocessor, extracts the differential signal by performing motion estimation / compensation on the filtered video signal, and encodes the extracted differential signal through discrete cosine transforming and quantization means A video encoding apparatus for outputting a video signal encoded through a control means, the video encoding apparatus further comprising means for adjusting the low-pass filtering of the preprocessor based on the quantization parameter from the buffer control means. 제1항에 있어서 상기 필터링 조절수단은 상기 양자화 파라메터에 의거하여 상기 로패스 필터의 횟수를 조절하는 것을 특징으로 하는 동영상 부호화장치.The video encoding apparatus of claim 1, wherein the filtering control unit adjusts the number of the low pass filters based on the quantization parameter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930018682A 1993-09-16 1993-09-16 Video encoding device KR950010630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930018682A KR950010630A (en) 1993-09-16 1993-09-16 Video encoding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930018682A KR950010630A (en) 1993-09-16 1993-09-16 Video encoding device

Publications (1)

Publication Number Publication Date
KR950010630A true KR950010630A (en) 1995-04-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930018682A KR950010630A (en) 1993-09-16 1993-09-16 Video encoding device

Country Status (1)

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KR (1) KR950010630A (en)

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