JP4621585B2 - 画像処理装置及び画像処理方法 - Google Patents
画像処理装置及び画像処理方法 Download PDFInfo
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- JP4621585B2 JP4621585B2 JP2005362030A JP2005362030A JP4621585B2 JP 4621585 B2 JP4621585 B2 JP 4621585B2 JP 2005362030 A JP2005362030 A JP 2005362030A JP 2005362030 A JP2005362030 A JP 2005362030A JP 4621585 B2 JP4621585 B2 JP 4621585B2
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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
- H04N19/10—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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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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
- H04N19/10—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
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
- H04N19/10—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
- H04N19/142—Detection of scene cut or scene change
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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
- H04N19/10—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
-
- 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
-
- 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
- H04N19/172—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 picture, frame or field
-
- 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
-
- 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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/87—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving scene cut or scene change detection in combination with video compression
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Analysis (AREA)
Description
102 第2画像処理装置
111 比較部
112 判定部
113 決定部
121 輝度算出部
122 輝度保持部
123 輝度差算出部
124 輝度差保持部
125 閾値処理管理部
126 閾値処理結果保持部
Claims (5)
- 動画像の各フレームについて、フレーム間予測による動画像圧縮のための参照フレームを決定する画像処理装置であって、
各フレーム内の画素を任意の第1方向に沿って複数のラインに分割し、さらに、各フレーム内の画素を前記第1方向と非平行の第2方向に沿って複数のラインに分割し、動画像のフレーム間において、各フレーム内の画素の輝度の合計同士と、各フレームの前記第1方向のライン上の画素の輝度の合計同士と、各フレームの前記第2方向のライン上の画素の輝度の合計同士とをそれぞれ比較する比較手段と、
前記比較手段による比較結果に基づき、各フレーム内にフラッシュが存在するか否かの判定を行う判定手段と、
前記判定手段による判定結果に基づき、フラッシュの開始前のフレームをフラッシュの終了後のフレームの参照フレームとする決定を行う決定手段とを備えることを特徴とする画像処理装置。 - 前記比較手段は、
動画像のフレーム間において、各フレーム内の画素の輝度の合計同士と、各フレームの前記第1方向のライン上の画素の輝度の合計同士と、各フレームの前記第1方向と直交する前記第2方向のライン上の画素の輝度の合計同士とをそれぞれ比較することを特徴とする請求項1記載の画像処理装置。 - 前記比較手段は、
動画像のフレーム間において、各フレーム内の画素の輝度の合計同士と、各フレームの前記第1方向である水平方向のライン上の画素の輝度の合計同士と、各フレームの前記第2方向である垂直方向のライン上の画素の輝度の合計同士とをそれぞれ比較することを特徴とする請求項2記載の画像処理装置。 - 前記比較手段は、
動画像のフレーム間において、各フレーム内の画素の輝度の合計同士と、各フレームの前記第1方向のライン上の画素の輝度のライン毎の合計同士と、各フレームの前記第2方向のライン上の画素の輝度のライン毎の合計同士とをそれぞれ比較することを特徴とする請求項1乃至3のいずれか1項記載の画像処理装置。 - 動画像の各フレームについて、フレーム間予測による動画像圧縮のための参照フレームを決定する画像処理方法であって、
各フレーム内の画素を任意の第1方向に沿って複数のラインに分割し、さらに、各フレーム内の画素を前記第1方向と非平行の第2方向に沿って複数のラインに分割し、動画像のフレーム間において、各フレーム内の画素の輝度の合計同士と、各フレームの前記第1方向のライン上の画素の輝度の合計同士と、各フレームの前記第2方向のライン上の画素の輝度の合計同士とをそれぞれ比較する比較段階と、
前記比較段階による比較結果に基づき、各フレーム内にフラッシュが存在するか否かの判定を行う判定段階と、
前記判定段階による判定結果に基づき、フラッシュの開始前のフレームをフラッシュの終了後のフレームの参照フレームとする決定を行う決定段階とを備えることを特徴とする画像処理方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005362030A JP4621585B2 (ja) | 2005-12-15 | 2005-12-15 | 画像処理装置及び画像処理方法 |
US11/565,873 US20070140356A1 (en) | 2005-12-15 | 2006-12-01 | Image processing device, image processing method, and image processing system |
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JP2005362030A JP4621585B2 (ja) | 2005-12-15 | 2005-12-15 | 画像処理装置及び画像処理方法 |
Publications (2)
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JP2007166408A JP2007166408A (ja) | 2007-06-28 |
JP4621585B2 true JP4621585B2 (ja) | 2011-01-26 |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2245594B1 (en) * | 2008-01-17 | 2011-06-15 | Koninklijke Philips Electronics N.V. | Flash detection |
JP5295638B2 (ja) * | 2008-05-22 | 2013-09-18 | 池上通信機株式会社 | テレビカメラ |
JP5129182B2 (ja) * | 2009-03-12 | 2013-01-23 | 富士フイルム株式会社 | 撮像装置及び撮像制御方法 |
WO2010119669A1 (ja) * | 2009-04-16 | 2010-10-21 | パナソニック株式会社 | 撮像装置、外部閃光検出方法、プログラムおよび集積回路 |
JP5634901B2 (ja) * | 2010-05-10 | 2014-12-03 | パナソニック株式会社 | 撮像装置、外部閃光補正方法、プログラム、および、集積回路 |
JP2013003238A (ja) * | 2011-06-14 | 2013-01-07 | Sony Corp | 映像信号処理回路、映像信号処理方法、表示装置、及び、電子機器 |
WO2014112076A1 (ja) * | 2013-01-17 | 2014-07-24 | Nttエレクトロニクス株式会社 | 動画像符号化装置 |
JP6156686B2 (ja) * | 2013-02-20 | 2017-07-05 | パナソニックIpマネジメント株式会社 | 画像処理装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09223234A (ja) * | 1996-02-19 | 1997-08-26 | Oki Electric Ind Co Ltd | 動画像処理システムにおける動画像情報検出装置 |
JP2000115778A (ja) * | 1998-09-25 | 2000-04-21 | Sarnoff Corp | ビデオ・デ―タ中のフラッシュ・フレ―ムの検出および符号化 |
JP2002101337A (ja) * | 2000-09-21 | 2002-04-05 | Canon Inc | 動画像処理装置及びその方法、コンピュータ可読メモリ |
Family Cites Families (4)
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US20040125877A1 (en) * | 2000-07-17 | 2004-07-01 | Shin-Fu Chang | Method and system for indexing and content-based adaptive streaming of digital video content |
US7606391B2 (en) * | 2003-07-25 | 2009-10-20 | Sony Corporation | Video content scene change determination |
KR100596706B1 (ko) * | 2003-12-01 | 2006-07-04 | 삼성전자주식회사 | 스케일러블 비디오 코딩 및 디코딩 방법, 이를 위한 장치 |
KR100557660B1 (ko) * | 2004-07-29 | 2006-03-10 | 매그나칩 반도체 유한회사 | 영상 신호에서의 플리커 검출 방법 |
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- 2005-12-15 JP JP2005362030A patent/JP4621585B2/ja not_active Expired - Fee Related
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- 2006-12-01 US US11/565,873 patent/US20070140356A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09223234A (ja) * | 1996-02-19 | 1997-08-26 | Oki Electric Ind Co Ltd | 動画像処理システムにおける動画像情報検出装置 |
JP2000115778A (ja) * | 1998-09-25 | 2000-04-21 | Sarnoff Corp | ビデオ・デ―タ中のフラッシュ・フレ―ムの検出および符号化 |
JP2002101337A (ja) * | 2000-09-21 | 2002-04-05 | Canon Inc | 動画像処理装置及びその方法、コンピュータ可読メモリ |
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US20070140356A1 (en) | 2007-06-21 |
JP2007166408A (ja) | 2007-06-28 |
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