KR20060071393A - 듀얼 패스 엔코딩에서 주사 모드의 선택을 위한 방법 및장치 - Google Patents
듀얼 패스 엔코딩에서 주사 모드의 선택을 위한 방법 및장치 Download PDFInfo
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- 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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Abstract
Description
Claims (10)
- 이미지 시퀀스 내의 픽처를 위한 주사 모드를 선택하는 방법에 있어서,적어도 2개의 주사 모드들을 사용하여 제1 엔코더에서 상기 픽처를 엔코딩하는 단계;상기 적어도 2개의 주사 모드들에 대한 코딩 효율 정보(coding efficiency information)를 결정하는 단계; 및제2 엔코더에서 상기 픽처를 엔코딩하기 위해 상기 적어도 2개의 주사 모드들 중 하나를, 상기 코딩 효율 정보에 기초하여 선택하는 단계를 포함하는 주사 모드 선택 방법.
- 제1항에 있어서,상기 제2 엔코더는 압축 표준에 따르는 컴플라이언트(compliant) 엔코더인, 주사 모드 선택 방법.
- 제2항에 있어서,상기 압축 표준은 동화상 전문 그룹(MPEG)-2인, 주사 모드 선택 방법.
- 제1항에 있어서,상기 적어도 2개의 주사 모드들은 지그재그 주사 모드(zigzag scan mode) 및 교대 모드(alternative mode)를 포함하는, 주사 모드 선택 방법.
- 제1항에 있어서,상기 픽처는 부분들로 분할되며, 상이한 부분들은 상기 적어도 2개의 주사 모드들로부터의 상이한 주사 모드들을 사용하여 코딩되는, 주사 모드 선택 방법.
- 제5항에 있어서,상기 부분들은 슬라이스들, 매크로블록들 및 서브블록들 중 적어도 하나를 포함하는, 주사 모드 선택 방법.
- 제6항에 있어서,상기 픽처가 앵커 프레임(anchor frame)이면, 상기 픽처의 상이한 부분들은 교대하는 I 부분들 또는 P 부분들로서 엔코딩되는, 주사 모드 선택 방법.
- 이미지 시퀀스 내의 픽처를 위한 주사 모드를 선택하기 위한 장치(100)에 있어서,적어도 2개의 주사 모드들을 사용하여 상기 픽처를 엔코딩하기 위한 제1 엔코더(110); 및상기 픽처를 엔코딩하기 위해 상기 적어도 2개의 주사 모드들 중 하나를, 상기 제1 엔코더로부터 수신된 상기 적어도 2개의 주사 모드들에 대한 코딩 효율 정 보에 기초하여 선택하기 위한 제2 엔코더(120)를 포함하는 주사 모드 선택 장치.
- 제8항에 있어서,상기 제2 엔코더(120)는 동화상 전문 그룹(MPEG)-2에 따르는 컴플라이언트 엔코더인, 주사 모드 선택 장치.
- 제8항에 있어서,상기 적어도 2개의 주사 모드들은 지그재그 주사 모드 및 교대 모드를 포함하는 주사 모드 선택 장치.
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US49451503P | 2003-08-12 | 2003-08-12 | |
US60/494,515 | 2003-08-12 |
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KR20060071393A true KR20060071393A (ko) | 2006-06-26 |
KR101263813B1 KR101263813B1 (ko) | 2013-05-13 |
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KR1020067002821A KR101263813B1 (ko) | 2003-08-12 | 2004-08-10 | 듀얼 패스 인코딩에서 주사 모드의 선택을 위한 방법 및 장치 |
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Country | Link |
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US (1) | US20050036549A1 (ko) |
EP (1) | EP1661398A4 (ko) |
KR (1) | KR101263813B1 (ko) |
CN (1) | CN100571365C (ko) |
CA (1) | CA2533885A1 (ko) |
WO (1) | WO2005017699A2 (ko) |
Cited By (1)
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KR101145399B1 (ko) * | 2010-02-26 | 2012-05-15 | 한국전자통신연구원 | 멀티-패스 인코딩 장치 및 방법 |
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KR100694059B1 (ko) * | 2004-09-30 | 2007-03-12 | 삼성전자주식회사 | 멀티 타임 스캔 방식에 기초한 인터 모드 인코딩 및디코딩 방법 및 장치 |
KR100694058B1 (ko) * | 2004-09-30 | 2007-03-12 | 삼성전자주식회사 | 멀티 타임 스캔 방식에 기초한 인트라 모드 인코딩 및디코딩 방법 및 장치 |
EP2733950A1 (en) * | 2005-10-21 | 2014-05-21 | Electronics and Telecommunications Research Institute | Apparatus for encoding moving picture using adaptive scanning |
WO2008017209A1 (en) * | 2006-08-04 | 2008-02-14 | Thomson Licensing | Methods for encoding a sequence of pictures and device implementing said method |
US8571104B2 (en) * | 2007-06-15 | 2013-10-29 | Qualcomm, Incorporated | Adaptive coefficient scanning in video coding |
US8428133B2 (en) | 2007-06-15 | 2013-04-23 | Qualcomm Incorporated | Adaptive coding of video block prediction mode |
JP5400876B2 (ja) * | 2008-06-16 | 2014-01-29 | ドルビー ラボラトリーズ ライセンシング コーポレイション | ビデオ符号化のための、スライス依存性に基づくレート制御モデル適合化 |
US9661338B2 (en) | 2010-07-09 | 2017-05-23 | Qualcomm Incorporated | Coding syntax elements for adaptive scans of transform coefficients for video coding |
CN102131090B (zh) * | 2010-11-22 | 2012-10-03 | 华为技术有限公司 | 视频文件播放的方法、系统及媒体资源服务器 |
US8976861B2 (en) | 2010-12-03 | 2015-03-10 | Qualcomm Incorporated | Separately coding the position of a last significant coefficient of a video block in video coding |
US9042440B2 (en) | 2010-12-03 | 2015-05-26 | Qualcomm Incorporated | Coding the position of a last significant coefficient within a video block based on a scanning order for the block in video coding |
US20120163456A1 (en) * | 2010-12-22 | 2012-06-28 | Qualcomm Incorporated | Using a most probable scanning order to efficiently code scanning order information for a video block in video coding |
US10992958B2 (en) | 2010-12-29 | 2021-04-27 | Qualcomm Incorporated | Video coding using mapped transforms and scanning modes |
US9106913B2 (en) | 2011-03-08 | 2015-08-11 | Qualcomm Incorporated | Coding of transform coefficients for video coding |
US20120230418A1 (en) | 2011-03-08 | 2012-09-13 | Qualcomm Incorporated | Coding of transform coefficients for video coding |
US9491469B2 (en) | 2011-06-28 | 2016-11-08 | Qualcomm Incorporated | Coding of last significant transform coefficient |
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EP2938073A1 (en) * | 2014-04-24 | 2015-10-28 | Thomson Licensing | Methods for encoding and decoding a picture and corresponding devices |
US10306229B2 (en) | 2015-01-26 | 2019-05-28 | Qualcomm Incorporated | Enhanced multiple transforms for prediction residual |
US10623774B2 (en) | 2016-03-22 | 2020-04-14 | Qualcomm Incorporated | Constrained block-level optimization and signaling for video coding tools |
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2004
- 2004-07-09 US US10/888,268 patent/US20050036549A1/en not_active Abandoned
- 2004-08-10 CA CA002533885A patent/CA2533885A1/en not_active Abandoned
- 2004-08-10 CN CNB2004800230544A patent/CN100571365C/zh not_active Expired - Fee Related
- 2004-08-10 KR KR1020067002821A patent/KR101263813B1/ko active IP Right Grant
- 2004-08-10 EP EP04781045A patent/EP1661398A4/en not_active Withdrawn
- 2004-08-10 WO PCT/US2004/026298 patent/WO2005017699A2/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101145399B1 (ko) * | 2010-02-26 | 2012-05-15 | 한국전자통신연구원 | 멀티-패스 인코딩 장치 및 방법 |
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CN100571365C (zh) | 2009-12-16 |
EP1661398A2 (en) | 2006-05-31 |
US20050036549A1 (en) | 2005-02-17 |
WO2005017699A3 (en) | 2005-04-28 |
WO2005017699A2 (en) | 2005-02-24 |
CN1839629A (zh) | 2006-09-27 |
CA2533885A1 (en) | 2005-02-24 |
EP1661398A4 (en) | 2009-09-02 |
KR101263813B1 (ko) | 2013-05-13 |
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