JP4995344B2 - フィルタリング装置 - Google Patents
フィルタリング装置 Download PDFInfo
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- JP4995344B2 JP4995344B2 JP2011275672A JP2011275672A JP4995344B2 JP 4995344 B2 JP4995344 B2 JP 4995344B2 JP 2011275672 A JP2011275672 A JP 2011275672A JP 2011275672 A JP2011275672 A JP 2011275672A JP 4995344 B2 JP4995344 B2 JP 4995344B2
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- H04N7/24—Systems for the transmission of television signals using pulse code modulation
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
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- 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
- H04N19/117—Filters, e.g. for pre-processing or post-processing
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- 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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
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- H—ELECTRICITY
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- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
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- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
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- H—ELECTRICITY
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- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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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- 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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/527—Global motion vector estimation
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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
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Picture Signal Circuits (AREA)
Description
前記方法は、前記復号化された映像データをデブロックするためのブロック強度が4未満であれば、H.264で規定された所定のフィルタリングを行う段階をさらに含みうる。
AVC標準で定義された閾値であって、2つのブロックp及びqの量子化パラメータ(Quantization Parameter:QP)の平均に伴って増加する。apは、下記の式(2)のとおりである。
610 圧縮フォーマット検出部
620 ブロック強度決定部
630 テーブル決定部
640 第1フィルタリング部
650 第2フィルタリング部
710 テーブル保存部
720 マトリックス演算部
730 ラウンディング制御部
740 シフト演算部
Claims (1)
- 復号化された映像データのブロックキング現象を除去するマルチコーデック用のフィルタリング装置であって、
前記復号化された映像データの映像圧縮フォーマットを検出する圧縮フォーマット検出部と、
検出された映像圧縮フォーマットがH.264である場合、前記復号化された映像データに対するフィルタリングの強度を示し、H.264では境界強度と呼ばれるブロック強度を0〜4のいずれかに決定し、検出された映像圧縮フォーマットがH.264でない場合、前記ブロック強度をH.264のブロック強度とは異なる正数の値に決定するブロック強度決定部と、
前記ブロック強度が5以上である場合、H.264で規定された所定のフィルタリングテーブル以外のフィルタリングテーブルに決定してフィルタリングを行い、
前記ブロック強度が4以下である場合、H.264で規定された所定のフィルタリングを行うフィルタリング部とを備えることを特徴とするマルチコーデック用のフィルタリング装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-0093118 | 2005-10-04 | ||
KR20050093118A KR100668346B1 (ko) | 2005-10-04 | 2005-10-04 | 멀티 코덱용 필터링 장치 및 방법 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006269571A Division JP4979324B2 (ja) | 2005-10-04 | 2006-09-29 | マルチコーデック用のフィルタリング装置、方法、及び記録媒体 |
Publications (2)
Publication Number | Publication Date |
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JP2012090321A JP2012090321A (ja) | 2012-05-10 |
JP4995344B2 true JP4995344B2 (ja) | 2012-08-08 |
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JP2006269571A Expired - Fee Related JP4979324B2 (ja) | 2005-10-04 | 2006-09-29 | マルチコーデック用のフィルタリング装置、方法、及び記録媒体 |
JP2011275672A Expired - Fee Related JP4995344B2 (ja) | 2005-10-04 | 2011-12-16 | フィルタリング装置 |
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JP2006269571A Expired - Fee Related JP4979324B2 (ja) | 2005-10-04 | 2006-09-29 | マルチコーデック用のフィルタリング装置、方法、及び記録媒体 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9172977B2 (ja) |
EP (1) | EP1777967B1 (ja) |
JP (2) | JP4979324B2 (ja) |
KR (1) | KR100668346B1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101065546B1 (ko) * | 2005-12-09 | 2011-09-19 | 엔비디아 코포레이션 | 하드웨어 다중 표준 비디오 디코더 장치 |
KR100819289B1 (ko) * | 2006-10-20 | 2008-04-02 | 삼성전자주식회사 | 영상 데이터의 디블록킹 필터링 방법 및 디블록킹 필터 |
KR20100103822A (ko) * | 2008-01-14 | 2010-09-28 | 톰슨 라이센싱 | 다중 격자 성김-기반의 필터링을 사용하는 아티팩트 제거 필터링 방법 및 장치 |
CN101964907B (zh) * | 2009-07-22 | 2012-12-26 | 晨星软件研发(深圳)有限公司 | 一种去区块装置及方法 |
KR101073150B1 (ko) | 2009-08-28 | 2011-10-12 | 성균관대학교산학협력단 | 공통 데이터 패스 구조를 포함하는 디블록킹 필터링 연산 장치 및 그 방법 |
KR101438471B1 (ko) | 2011-01-03 | 2014-09-16 | 미디어텍 인크. | 필터 유닛 기반 인-루프 필터링 방법 |
US8743967B2 (en) * | 2011-03-09 | 2014-06-03 | Vixs Systems, Inc. | Multi-format video decoder with vector processing instructions and methods for use therewith |
US9025675B2 (en) * | 2011-06-22 | 2015-05-05 | Texas Instruments Incorporated | Systems and methods for reducing blocking artifacts |
CN105681814B (zh) * | 2014-11-21 | 2019-03-29 | 联想(北京)有限公司 | 一种去块效应滤波方式的确定方法及装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08228353A (ja) | 1995-02-21 | 1996-09-03 | Nec Corp | 動画像符号化用動き補償回路 |
JP2985763B2 (ja) | 1995-03-22 | 1999-12-06 | 凸版印刷株式会社 | 多層導電膜、並びにこれを用いた透明電極板および液晶表示装置 |
KR100290851B1 (ko) | 1999-03-27 | 2001-05-15 | 구자홍 | 디지털 티브이의 영상 처리 장치 |
JP2003152546A (ja) | 2001-11-15 | 2003-05-23 | Matsushita Electric Ind Co Ltd | マルチフォーマットストリーム復号化装置及びマルチフォーマットストリーム送出装置 |
EP1351512A3 (en) | 2002-04-01 | 2005-08-03 | Broadcom Corporation | Video decoding system supporting multiple standards |
CN100358366C (zh) | 2002-07-11 | 2007-12-26 | 松下电器产业株式会社 | 滤波强度的决定方法、动态图像编码方法及解码方法 |
EP1570647A1 (en) * | 2002-12-04 | 2005-09-07 | Koninklijke Philips Electronics N.V. | Method and apparatus for selecting particular decoder based on bitstream format detection |
US20050013494A1 (en) * | 2003-07-18 | 2005-01-20 | Microsoft Corporation | In-loop deblocking filter |
US7724827B2 (en) * | 2003-09-07 | 2010-05-25 | Microsoft Corporation | Multi-layer run level encoding and decoding |
US7457362B2 (en) * | 2003-10-24 | 2008-11-25 | Texas Instruments Incorporated | Loop deblock filtering of block coded video in a very long instruction word processor |
US7397853B2 (en) * | 2004-04-29 | 2008-07-08 | Mediatek Incorporation | Adaptive de-blocking filtering apparatus and method for MPEG video decoder |
US7430336B2 (en) * | 2004-05-06 | 2008-09-30 | Qualcomm Incorporated | Method and apparatus for image enhancement for low bit rate video compression |
US8116379B2 (en) * | 2004-10-08 | 2012-02-14 | Stmicroelectronics, Inc. | Method and apparatus for parallel processing of in-loop deblocking filter for H.264 video compression standard |
US7574060B2 (en) * | 2004-11-22 | 2009-08-11 | Broadcom Corporation | Deblocker for postprocess deblocking |
US7725691B2 (en) * | 2005-01-28 | 2010-05-25 | Analog Devices, Inc. | Method and apparatus for accelerating processing of a non-sequential instruction stream on a processor with multiple compute units |
-
2005
- 2005-10-04 KR KR20050093118A patent/KR100668346B1/ko not_active IP Right Cessation
-
2006
- 2006-06-09 US US11/449,589 patent/US9172977B2/en active Active
- 2006-09-19 EP EP20060120876 patent/EP1777967B1/en not_active Expired - Fee Related
- 2006-09-29 JP JP2006269571A patent/JP4979324B2/ja not_active Expired - Fee Related
-
2011
- 2011-12-16 JP JP2011275672A patent/JP4995344B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2012090321A (ja) | 2012-05-10 |
JP2007104672A (ja) | 2007-04-19 |
US20070076797A1 (en) | 2007-04-05 |
KR100668346B1 (ko) | 2007-01-12 |
EP1777967A1 (en) | 2007-04-25 |
EP1777967B1 (en) | 2014-05-21 |
US9172977B2 (en) | 2015-10-27 |
JP4979324B2 (ja) | 2012-07-18 |
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