KR0185848B1 - 호환 부호화기 - Google Patents
호환 부호화기 Download PDFInfo
- Publication number
- KR0185848B1 KR0185848B1 KR1019950032556A KR19950032556A KR0185848B1 KR 0185848 B1 KR0185848 B1 KR 0185848B1 KR 1019950032556 A KR1019950032556 A KR 1019950032556A KR 19950032556 A KR19950032556 A KR 19950032556A KR 0185848 B1 KR0185848 B1 KR 0185848B1
- Authority
- KR
- South Korea
- Prior art keywords
- output
- motion
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- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/43—Hardware specially adapted for motion estimation or compensation
- H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
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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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
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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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (1)
- 프레임 메모리에 저장된 영상 데이타를 입력받아 이산여현 변환하는 이산여현 변환기(21); 상기 이산여현 변환기(21)의 출력을 입력받아 다운 샘플링하는 간축부(30); 상기 간축부(30)의 출력을 입력받아 움직임 보상된 저해상도 영상신호와 감산하는 저해상도 감산기(31); 상기 저해상도 감산기(31)의 출력을 벡터 양자화하여 저해상도 영상시퀀스를 형성하는 저해상도 벡터양자화기(32); 상기 저해상도 벡터양자화기(32)의 출력을 입력받아 역 벡터양자화하는 저해상도 역벡터 양자화기(33); 상기 저해상도 역벡터 양자화기(33)의 출력을 움직임 보상된 출력과 가산하는 저해상도 가산기(34); 상기 저해상도 가산기(34)의 출력을 입력받아 움직임 보상하는 저해상도 움직임 보상부(35); 상기 움직임 보상된 저해상도의 출력을 입력받아 보간하여 원영상의 크기로 재생하는 보간부(29); 상기 보간부(29)의 출력을 입력받아 움직임 보상된 고해상도와 저주파부분을 비교하여 차이가 없으면 움직임 보상된 고해상도의 영상 데이타로 보간된 영상신호를 출력하는 판단부(28); 상기 이산여현 변환기(21)의 출력영상과 판단부(28)의 출력영상을 감산하는 제1 감산기(22); 상기 제1 감산기(22)의 출력을 움직임 보상된 고해상도 영상신호와 감산하는 제2 감산기(23); 상기 제2 감산기(33)의 출력을 벡터양자화하여 고해상도 영상시퀀스를 출력하는 고해상도 벡터양자화기(24); 상기 고해상도 벡터양자화기(25)의 출력을 역벡터 양자화하는 고해상도 역벡터 양자화기(25); 상기 고해상도 역벡터양자화기(25)의 출력과 움직임 보상된 영상신호를 가산하는 고해상도 가산기(26); 및 상기 고해상도 가산기(26)의 출력을 입력받아 움직임 보상하는 고해상도 움직임 보상부(27)로 구성되는 호환 부호화기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950032556A KR0185848B1 (ko) | 1995-09-29 | 1995-09-29 | 호환 부호화기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950032556A KR0185848B1 (ko) | 1995-09-29 | 1995-09-29 | 호환 부호화기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970019663A KR970019663A (ko) | 1997-04-30 |
KR0185848B1 true KR0185848B1 (ko) | 1999-05-01 |
Family
ID=19428313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950032556A Expired - Fee Related KR0185848B1 (ko) | 1995-09-29 | 1995-09-29 | 호환 부호화기 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0185848B1 (ko) |
-
1995
- 1995-09-29 KR KR1019950032556A patent/KR0185848B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR970019663A (ko) | 1997-04-30 |
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