KR960028475A - PTS vector quantization encoder with multiple code books - Google Patents

PTS vector quantization encoder with multiple code books Download PDF

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Publication number
KR960028475A
KR960028475A KR1019940038210A KR19940038210A KR960028475A KR 960028475 A KR960028475 A KR 960028475A KR 1019940038210 A KR1019940038210 A KR 1019940038210A KR 19940038210 A KR19940038210 A KR 19940038210A KR 960028475 A KR960028475 A KR 960028475A
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South Korea
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pts
code
encoder
index
vector
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KR1019940038210A
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Korean (ko)
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KR0169662B1 (en
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윤성욱
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배순훈
대우전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/94—Vector quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

본 발명은 다수의 부호책을 갖는 PTS VQ 엔코더에 관한 것으로, 프레임 메모리(6)로부터 영상데이타를 입력하여 제1부호책에 의해 PTS VQ를 수행하여 제1인덱스코드를 발생하는 제1PTSVQ 엔코더(1)와; 프레임 메모리(6)로부터 영상데이타를 입력하여 제2부호책에 의해 PTS VQ를 수행하여 제2인덱스 코드를 발생하는 제2PTSVQ엔코더(2); 프레임 메모리(6)로부터 영상데이타를 입력하여 제3부호책에 의해 PTS VQ를 수행하여 제3인덱스코드를 발생하는 제3PTSVQ엔코더(3); 프레임 메모리(6)로부터 영상데이타를 입력하여 제4부호책에 의해 PTS VQ를 수행하여 제4인덱스코드를 발생하는 제4PTSVQ엔코더(4); 및 상기 제1PTSVQ 엔코더(1) 내지 제4 PTS VQ 엔코더(4)로부터 입력된 제1인덱스코드를 내지 제4인덱스코드를 비교하여 왜곡치가 최소인 인텍스와 그 인덱스를 출력한 PTS VQ엔코더의 번호를 출력하는 비교기(5)를 구비하여 벡터양자화의 성능을 향상시킨다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PTS VQ encoder having a plurality of code books, wherein a first PTS VQ encoder (1) for inputting image data from the frame memory (6) to perform a PTS VQ according to the first code book to generate a first index code. )Wow; A second PTSVQ encoder (2) for inputting image data from the frame memory (6) to perform a PTS VQ by means of a second coding scheme to generate a second index code; A third PTSVQ encoder (3) for inputting image data from the frame memory (6) to perform a PTS VQ by means of a third code book to generate a third index code; A fourth PTSVQ encoder (4) for inputting image data from the frame memory (6) to perform a PTS VQ by a fourth code book to generate a fourth index code; And comparing the first index code inputted from the first PTSVQ encoders 1 to the fourth PTS VQ encoder 4 to the fourth index code to determine the index having the minimum distortion value and the number of the PTS VQ encoder outputting the index. Comparator 5 for outputting is provided to improve the performance of vector quantization.

Description

다수의 부호책을 갖는 피티에스 벡터양자화 부호기PTS vector quantization encoder with multiple code books

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

제1도는 본 발명에 따른 다수의 부호책을 갖는 PTS VQ 엔코더를 도시한 블럭도, 제2도는 제1도에 도시된 제1 내지 제4 PTS VQ 엔코더의 세부블럭도, 제4도는 본 발명에 적용되는 PTS VQ의 구조 예를 비교한 도면.1 is a block diagram showing a PTS VQ encoder having a plurality of code books according to the present invention, FIG. 2 is a detailed block diagram of the first to fourth PTS VQ encoders shown in FIG. 1, and FIG. A diagram comparing the structural example of the applied PTS VQ.

Claims (2)

프레임 메모리(6)로부터 영상데이타를 입력하여 제1부호책에 의해 PTS VQ를 수행하여 제1인덱스 코드를 발생하는 제1PTS VQ 엔코더(1)와; 프레임 메모리(6)로부터 영상데이타를 입력하여 제2부호책에 의해 PTS VQ를 수행하여 제2인덱스코드를 발생하는 제2PTS VQ엔코더(2); 프레임 메모리(6)로부터 영상데이타를 입력하여 제3부호책에 의해 PTS VQ를 수행하여 제3인덱스코드를 발생하는 제3PTS VQ 엔코더(3); 프레임 메모리(6)로부터 영상데이타를 입력하여 제4부호책에 의해 PTS VQ를 수행하여 제4인덱스코드를 발생하는 제4PTS VQ엔코더(4); 및 상기 제1PTS VQ 엔코더(1) 내지 제4PTS VQ엔코더(4)로부터 입력된 제1인덱스코드 내지 제4인덱스코드를 비교하여 왜곡치가 최소인 인덱스와 그 인덱스를 출력한 PTS VQ엔코더의 번호를 출력하는 비교기(5)를 구비한 것을 특징으로 하는 다수의 부호책을 갖는 피티에스 벡터양자화 부호기.A first PTS VQ encoder (1) for inputting image data from the frame memory (6) to perform a PTS VQ by means of a first coding scheme to generate a first index code; A second PTS VQ encoder (2) for inputting image data from the frame memory (6) to perform a PTS VQ by means of a second coding scheme to generate a second index code; A third PTS VQ encoder (3) for inputting image data from the frame memory (6) to perform a PTS VQ by means of a third code book to generate a third index code; A fourth PTS VQ encoder (4) for inputting image data from the frame memory (6) to perform a PTS VQ by the fourth code book to generate a fourth index code; And comparing the first to fourth index codes inputted from the first PTS VQ encoder 1 to the fourth PTS VQ encoder 4 to output an index having a minimum distortion value and a number of the PTS VQ encoder that outputs the index. A PTS vector quantization encoder having a plurality of code books, comprising: a comparator (5). 제1항에 있어서, 제1 내지 제4 PTS VQ엔코더는 영상데이타를 읽어와 입력벡터(Vin)를 형성하는 램억세스부(10)와; 상기 부호책(5)으로부터 부호벡터를 미리 읽어와 좌측 부호벡터(VL)와 우측 부호벡터(VR)를 출력하고, 결과신호에 따라 선택된 가지(branch)의 노드를 중심으로 다시 우측 부호벡터와 좌측 부호벡터를 읽어오고, 단자 노드(terminal node)에 도달하면 완료신호(complete)를 발생하는 프리패치부(30); 상기 입력벡터(Vin)를 프리 패치된 좌측 부호벡터(VL) 및 우측 부호벡터(VR)와 왜곡치를 계산하여 왜곡치가 적은 쪽의 가지를 선택하도록 상기 결과신호를 출력하는 계산부(20); 및 상기 계산부(20)의 결과신호에 따라 해당 부호 벡터의 인덱스 코드를 생성하여 상기 완료신호(complete)에 따라 출력하는 코드발생부(40)를 구비한 것을 특징으로 하는 다수의 부호책을 갖는 피티에스 벡터양자화 부호기.2. The apparatus of claim 1, wherein the first to fourth PTS VQ encoders include: a RAM access unit 10 configured to read image data to form an input vector Vin; The code vector is read in advance from the code book 5 and the left code vector VL and the right code vector VR are output, and the right code vector and the left are again centered on the node of the branch selected according to the result signal. A prefetch unit 30 that reads a sign vector and generates a completion signal when it reaches a terminal node; A calculation unit (20) for calculating the distortion value with the pre-patched left sign vector (VL) and right sign vector (VR) from the input vector (Vin), and outputting the result signal to select a branch having the least distortion value; And a code generator 40 for generating an index code of the corresponding code vector according to the result signal of the calculator 20 and outputting the index code of the corresponding code vector according to the completion signal. PS vector quantization encoder. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940038210A 1994-12-28 1994-12-28 A classified pts vq encoder KR0169662B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100911098B1 (en) * 2002-09-30 2009-08-06 주식회사 케이티 Apparatus and method for prediction of distortion in H.263 video coding

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WO2011090798A1 (en) 2010-01-22 2011-07-28 Thomson Licensing Data pruning for video compression using example-based super-resolution
EP2526698A1 (en) 2010-01-22 2012-11-28 Thomson Licensing Methods and apparatus for sampling -based super resolution video encoding and decoding
WO2012033971A1 (en) 2010-09-10 2012-03-15 Thomson Licensing Recovering a pruned version of a picture in a video sequence for example - based data pruning using intra- frame patch similarity
US9544598B2 (en) 2010-09-10 2017-01-10 Thomson Licensing Methods and apparatus for pruning decision optimization in example-based data pruning compression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100911098B1 (en) * 2002-09-30 2009-08-06 주식회사 케이티 Apparatus and method for prediction of distortion in H.263 video coding

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