KR960020538A - A method of reducing mosquito noise generated during decoding processing of video data and a device for decoding video data using the method - Google Patents
A method of reducing mosquito noise generated during decoding processing of video data and a device for decoding video data using the method Download PDFInfo
- Publication number
- KR960020538A KR960020538A KR1019950043476A KR19950043476A KR960020538A KR 960020538 A KR960020538 A KR 960020538A KR 1019950043476 A KR1019950043476 A KR 1019950043476A KR 19950043476 A KR19950043476 A KR 19950043476A KR 960020538 A KR960020538 A KR 960020538A
- Authority
- KR
- South Korea
- Prior art keywords
- frequency component
- high frequency
- image data
- decoded image
- decoding
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/124—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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
-
- 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
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
코드화된 영상 데이타가 분할되는 각각 블록에 역 직교 변형을 인가함으로서 복호화된 영상 데이타를 발생하는 복호화된 영상 데이타의 복호 장치는 주어진 블록에 사용된 양자화 단계 사이즈를 검출하는 양자환 정보 검출유닛(5,9), 블록 양자화 단계 사이즈 정보를 근거한 주어진 블록에 복호화된 영상 데이타의 고 주파수 성분을 변형하는 주파수 특성 변형유닛(7,7A), 소정의 주파수 보다 더 높은 주파수를 갖는 고 주파수 성분을 포함한다.An apparatus for decoding decoded image data, which generates decoded image data by applying inverse orthogonal transformation to each block in which coded image data is divided, includes: a quantized ring information detection unit 5 for detecting a quantization step size used in a given block; 9), a frequency characteristic modifying unit (7, 7A) for modifying the high frequency component of the decoded image data in a given block based on the block quantization step size information, and includes a high frequency component having a frequency higher than a predetermined frequency.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명의 제1실시예에 따른 영상 데이타 복호 장치의 볼록도,1 is a convex diagram of a video data decoding apparatus according to a first embodiment of the present invention;
제3도는 주파수 응답 특성의 변형 유닛의 다른 실시예의 블럭도,3 is a block diagram of another embodiment of a modification unit of frequency response characteristic,
제5도는 본 발명의 제2실시예에 따른 영상 데이타 복호 장치의 블록도,5 is a block diagram of a video data decoding apparatus according to a second embodiment of the present invention;
제6도는 본 발명의 제3실시예에 따른 영상 데이타 복호 장치의 블록도,6 is a block diagram of a video data decoding apparatus according to a third embodiment of the present invention;
제8도는 본 발명의 제4실시예에 따른 영상 데이타 복호 장치의 블록도,8 is a block diagram of a video data decoding apparatus according to a fourth embodiment of the present invention;
제9도는 본 발명에 따른 제4실시예에 따른 영상 데이타 복호 장치의 볼록도,9 is a convex diagram of a video data decoding apparatus according to a fourth embodiment of the present invention;
제14도는 본 발명의 제6실시예에 따른 영상 데이타 복호 장치의 블럭도.14 is a block diagram of a video data decoding apparatus according to a sixth embodiment of the present invention.
Claims (26)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1994-314162 | 1994-11-24 | ||
JP6314162A JP2900808B2 (en) | 1994-11-24 | 1994-11-24 | Method for reducing mosquito noise generated when decoding image data and image data decoding apparatus |
JP3014495A JP2900815B2 (en) | 1995-01-26 | 1995-01-26 | Method and device for adaptive coring |
JP1995-30144 | 1995-01-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960020538A true KR960020538A (en) | 1996-06-17 |
KR100217148B1 KR100217148B1 (en) | 1999-09-01 |
Family
ID=26368430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950043476A KR100217148B1 (en) | 1994-11-24 | 1995-11-24 | Method of reducing mosquito noise generated during decoding process of image data and device for decoding image data using the same |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR100217148B1 (en) |
DE (1) | DE69525313T2 (en) |
TW (1) | TW279298B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100897644B1 (en) * | 2001-05-21 | 2009-05-14 | 소니 가부시끼 가이샤 | Image processor, image processing method, and recording medium |
-
1995
- 1995-11-22 TW TW084112432A patent/TW279298B/zh not_active IP Right Cessation
- 1995-11-23 DE DE69525313T patent/DE69525313T2/en not_active Expired - Lifetime
- 1995-11-24 KR KR1019950043476A patent/KR100217148B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100897644B1 (en) * | 2001-05-21 | 2009-05-14 | 소니 가부시끼 가이샤 | Image processor, image processing method, and recording medium |
Also Published As
Publication number | Publication date |
---|---|
DE69525313T2 (en) | 2002-11-14 |
TW279298B (en) | 1996-06-21 |
KR100217148B1 (en) | 1999-09-01 |
DE69525313D1 (en) | 2002-03-21 |
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