JP5192393B2 - 多視点ビデオの処理 - Google Patents
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Description
また、直接予測モードは、符号化の終わったブロックの動き情報から現在ブロックの動き情報を予測する符号化モードである。このような方法は、動き情報を符号化する時に必要なビット数が軽減され、圧縮効率が向上する。
Claims (6)
- 多視点ビデオ信号をデコードする方法であって、
前記多視点ビデオ信号を受信する段階と、
前記多視点ビデオ信号から第1フラグ情報を抽出する段階であって、該第1フラグ情報は照明補償が現在スライスで有効かどうかを示す、段階と、
前記第1フラグ情報に基づいて、照明補償が前記現在スライスで有効なとき、前記多視点ビデオ信号から第2フラグ情報を抽出する段階であって、該第2フラグ情報は照明補償が前記現在スライスの現在ブロックで用いられているかどうかを示す、段階と、
前記第2フラグ情報に基づいて、前記現在ブロックで照明補償が用いられているとき、隣接ブロックの輝度差分値を用いて前記現在ブロックの輝度差分予測値を導出する段階であって、該導出段階は前記現在ブロックの参照番号が隣接ブロックのうち少なくとも一つの参照番号に等しいかどうかを所定の順序で検査する段階を含み、前記隣接ブロックは前記現在ブロックと同一の参照番号を有し、前記隣接ブロックは前記現在ブロックの上ブロック、左ブロック、右上ブロック及び左上ブロックを含み、前記所定の順序は前記上ブロック、前記左ブロック、前記右上ブロック、前記左上ブロック、の順である、段階と、
前記輝度差分予測値を用いて前記現在ブロックの輝度補償を行う段階と、
を有する方法。 - 前記多視点ビデオ信号から前記現在ブロックの輝度差分残差値を取得する段階と、
前記輝度差分残差値を前記輝度差分予測値に加算することによって、前記現在ブロックの輝度差分値を導出する段階と、
を更に有する請求項1に記載の方法。 - 前記現在ブロックの輝度差分値は、前記現在ブロックの平均画素値と参照ブロックの平均画素値との差を示し、前記参照ブロックは前記現在ブロックによって参照される、請求項2に記載の方法。
- 多視点ビデオ信号をデコードする装置であって、
前記多視点ビデオ信号を受信し、前記多視点ビデオ信号から第1フラグ情報を抽出し、該第1フラグ情報は照明補償が現在スライスで有効かどうかを示し、前記第1フラグ情報に基づいて、照明補償が前記現在スライスで有効なとき、前記多視点ビデオ信号から第2フラグ情報を抽出し、該第2フラグ情報は照明補償が前記現在スライスの現在ブロックで用いられているかどうかを示す、パーシング部と、
前記第2フラグ情報に基づいて、前記現在ブロックで照明補償が用いられているとき、隣接ブロックの輝度差分値を用いて前記現在ブロックの輝度差分予測値を導出し、該導出は前記現在ブロックの参照番号が隣接ブロックのうち少なくとも一つの参照番号に等しいかどうかを所定の順序で検査することを含み、前記隣接ブロックは前記現在ブロックと同一の参照番号を有し、前記隣接ブロックは前記現在ブロックの上ブロック、左ブロック、右上ブロック及び左上ブロックを含み、前記所定の順序は前記上ブロック、前記左ブロック、前記右上ブロック、前記左上ブロック、の順である、照明補償オフセット予測部と、
前記輝度差分予測値を用いて前記現在ブロックの輝度補償を行う照明補償部と、
を備える装置。 - 前記多視点ビデオ信号から前記現在ブロックの輝度差分残差値を取得する前記パーシング部と、
前記輝度差分残差値を前記輝度差分予測値に加算することによって、前記現在ブロックの輝度差分値を導出する前記照明補償部と、
を更に備える請求項4に記載の装置。 - 前記現在ブロックの輝度差分値は、前記現在ブロックの平均画素値と参照ブロックの平均画素値との差を示し、前記参照ブロックは前記現在ブロックによって参照される、請求項5に記載の装置。
Applications Claiming Priority (25)
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KR10-2006-0004956 | 2006-01-17 | ||
US75962006P | 2006-01-18 | 2006-01-18 | |
US60/759,620 | 2006-01-18 | ||
US76253406P | 2006-01-27 | 2006-01-27 | |
US60/762,534 | 2006-01-27 | ||
KR10-2006-0027100 | 2006-03-24 | ||
KR20060027100 | 2006-03-24 | ||
US78719306P | 2006-03-30 | 2006-03-30 | |
US60/787,193 | 2006-03-30 | ||
KR1020060037773A KR20070076356A (ko) | 2006-01-18 | 2006-04-26 | 비디오 영상의 부호화/복호화 방법 및 장치 |
KR10-2006-0037773 | 2006-04-26 | ||
US81827406P | 2006-07-05 | 2006-07-05 | |
US60/818,274 | 2006-07-05 | ||
US83008706P | 2006-07-12 | 2006-07-12 | |
US60/830,087 | 2006-07-12 | ||
US83032806P | 2006-07-13 | 2006-07-13 | |
US60/830,328 | 2006-07-13 | ||
KR10-2006-0110338 | 2006-11-09 | ||
KR1020060110338A KR20070076392A (ko) | 2006-01-18 | 2006-11-09 | 비디오 신호의 디코딩/인코딩 방법 및 장치 |
KR1020060110337A KR20070076391A (ko) | 2006-01-18 | 2006-11-09 | 비디오 신호의 디코딩/인코딩 방법 및 장치 |
KR10-2006-0110337 | 2006-11-09 | ||
PCT/KR2007/000225 WO2007081176A1 (en) | 2006-01-12 | 2007-01-12 | Processing multiview video |
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JP2009523355A JP2009523355A (ja) | 2009-06-18 |
JP5192393B2 true JP5192393B2 (ja) | 2013-05-08 |
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JP2008550243A Active JP5199124B2 (ja) | 2006-01-12 | 2007-01-12 | 多視点ビデオの処理 |
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US (9) | US7856148B2 (ja) |
EP (3) | EP1982517A4 (ja) |
JP (3) | JP5192393B2 (ja) |
KR (8) | KR100943915B1 (ja) |
DE (1) | DE202007019463U1 (ja) |
WO (3) | WO2007081177A1 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10425653B2 (en) | 2010-12-13 | 2019-09-24 | Electronics And Telecommunications Research Institute | Method and device for determining reference unit |
US11252424B2 (en) | 2010-12-13 | 2022-02-15 | Electronics And Telecommunications Research Institute | Method and device for determining reference unit |
US11843795B2 (en) | 2010-12-13 | 2023-12-12 | Electronics And Telecommunications Research Institute | Method and device for determining reference unit |
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