KR100444536B1 - 동화상 복호화 장치 및 동화상 복호화 방법 - Google Patents
동화상 복호화 장치 및 동화상 복호화 방법 Download PDFInfo
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Abstract
Description
Claims (14)
- 디지털 신호로 압축 처리된 복수 채널의 비디오 스트림 신호를 받아, 각 복수 채널의 복호 처리량에 관련된 헤더 정보를 추출하는 헤더 정보 획득 수단과,상기 헤더 정보에 따라 각 복수 채널의 복호 처리량을 추정하여, 재생 방식을 판정하는 판정 수단과,상기 복수 채널의 비디오 스트림 신호를 받아서, 상기 판정 수단의 출력에 따라서 각 상기 채널마다 통상 재생과 상기 통상 재생보다도 처리량이 적은 간이(簡易) 재생 중 어느 한쪽을 행하는 복호 수단을 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 비디오 스트림 신호는 MPEG 또는 JPEG 방식으로 압축된 신호이고,상기 헤더 정보는,상기 비디오 스트림 신호에 포함되는 픽쳐군 앞에 부가되는 시퀀스 헤더 중의 화면 도트수를 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 비디오 스트림 신호는 MPEG 또는 JPEG 방식으로 압축된 신호이고,상기 헤더 정보는,상기 비디오 스트림 신호에 포함되는 픽쳐군 앞에 부가되는 시퀀스 헤더 중프레임레이트를 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 복호 수단은,입력되는 상기 비디오 스트림 신호를 상기 판정 수단의 출력에 따라 전환하여 제공하는 제1 전환 수단과,상기 제1 전환 수단으로부터 상기 비디오 스트림 신호를 받아 통상 재생을 행하기 위한 통상 복호 수단과,상기 제1 전환 수단으로부터 상기 비디오 스트림 신호를 받아 간이 재생을 행하기 위한 간이 복호 수단을 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 복호 수단의 출력을 받아 1화면 내에 상기 복수 채널에 대응하는 복수의 분할 화면을 표시하는 표시부를 더 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 비디오 스트림 신호는 MPEG 또는 JPEG 방식으로 압축된 신호이고,상기 간이 재생은 8×8의 직교 변환 계수 중 수평 주파수의 고역 부분을 제거한 4×8의 직교 변환 계수를 이용하여 역 이산 코사인 변환을 실시하는 4×8 IDCT 처리를 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 비디오 스트림 신호는 MPEG 또는 JPEG 방식으로 압축된 신호이고,상기 간이 재생은 상기 비디오 스트림 신호에 포함되는 픽쳐군 중 프레임 내 부호화 처리된 픽쳐의 데이터를 추출하여 복호하는 처리를 포함하는 동화상 복호화 장치.
- 제1항에 있어서,상기 판정 수단은 상기 복수 채널에 각각 대응하여 정해지는 우선 순위에 따라 상기 재생 방식을 결정하는 동화상 복호화 장치.
- 제8항에 있어서,상기 판정 수단은 추정된 상기 복호 처리량이 소정의 값을 초과할 때는 상기 복수 채널 중 추정 시에 상기 통상 재생을 행하도록 설정한 채널 중에서, 우선 순위가 최하위인 채널을 간이 재생을 행하도록 설정 변경하여, 다시 상기 복호 처리량의 추정을 행하는 동화상 복호화 장치.
- 제8항에 있어서,상기 우선 순위는 상기 복수 채널의 화면 표시 모드에 대응하여 정해지고, 표시 면적이 큰 채널일수록 우선 순위가 높은 동화상 복호화 장치.
- 디지털 신호로 압축 처리된 복수 채널의 비디오 스트림 신호를 받아서, 각 복수 채널의 복호 처리량에 관련된 헤더 정보를 추출하는 단계와,상기 헤더 정보에 따라 각 복수 채널의 복호 처리량을 추정하여, 재생 방식을 판정하는 단계와,상기 복수 채널의 비디오 스트림 신호를 받아서, 상기 재생 방식에 따라 각 상기 채널마다 통상 재생과 상기 통상 재생보다도 처리량이 적은 간이 재생 중 어느 한쪽을 행하는 복호 처리를 행하는 단계를 포함하는 동화상 복호화 방법.
- 제11항에 있어서,상기 복호 처리를 행하는 단계는,입력되는 상기 비디오 스트림 신호를 상기 재생 방식에 따라 재생 방법을 선택하는 단계와,상기 비디오 스트림 신호를 받아 통상 재생을 행하는 단계와,상기 비디오 스트림 신호를 받아 간이 재생을 행하는 단계를 포함하는 동화상 복호화 방법.
- 제11항에 있어서,상기 판정하는 단계는 상기 복수 채널에 각각 대응하여 정해지는 우선 순위에 따라 상기 재생 방식을 결정하는 동화상 복호화 방법.
- 제13항에 있어서,상기 판정하는 단계는 추정된 상기 복호 처리량이 소정의 값을 초과할 때는 상기 복수 채널 중 추정 시에 상기 통상 재생을 행하도록 설정한 채널 중에서 우선 순위가 최하위인 채널을 간이 재생을 행하도록 설정 변경하여, 다시 상기 복호 처리량의 추정을 행하는 동화상 복호화 방법.
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Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2000-00304851 | 2000-10-04 | ||
JP2000304851A JP3639517B2 (ja) | 2000-10-04 | 2000-10-04 | 動画像復号化装置および動画像復号化方法 |
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EP (1) | EP1202575A3 (ko) |
JP (1) | JP3639517B2 (ko) |
KR (1) | KR100444536B1 (ko) |
CN (1) | CN1203676C (ko) |
TW (1) | TW526663B (ko) |
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US7986846B2 (en) | 2004-10-26 | 2011-07-26 | Samsung Electronics Co., Ltd | Apparatus and method for processing an image signal in a digital broadcast receiver |
CN101204089B (zh) * | 2005-06-20 | 2010-05-19 | 夏普株式会社 | 视频数据再生装置、视频数据生成装置 |
JPWO2007032123A1 (ja) * | 2005-09-14 | 2009-03-19 | パナソニック株式会社 | マルチストリーム復号装置 |
EP1773004A1 (en) * | 2005-10-10 | 2007-04-11 | Nec Technologies (UK) Limited | Header compression optimisation method during and after handovers in a cellular communication network |
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JP2007318455A (ja) * | 2006-05-25 | 2007-12-06 | Matsushita Electric Ind Co Ltd | トランスコーデック装置 |
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JP4727557B2 (ja) * | 2006-11-30 | 2011-07-20 | シャープ株式会社 | 復号装置および復号方法 |
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WO2009025189A1 (ja) * | 2007-08-23 | 2009-02-26 | Sharp Kabushiki Kaisha | 再生装置、再生方法 |
JP2010206486A (ja) * | 2009-03-03 | 2010-09-16 | Sharp Corp | 動画像ストリーム復号装置及びその制御方法並びにプログラム、記録媒体 |
JP2011250358A (ja) * | 2010-05-31 | 2011-12-08 | Sharp Corp | 映像処理装置 |
WO2012100410A1 (zh) * | 2011-01-26 | 2012-08-02 | 青岛海信信芯科技有限公司 | 实现多方视频通话的方法、视频终端及系统 |
JP2012033204A (ja) * | 2011-11-16 | 2012-02-16 | Toshiba Corp | 電子機器、映像表示プログラムおよび映像表示方法 |
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JP2000259143A (ja) | 1999-03-08 | 2000-09-22 | Matsushita Electric Ind Co Ltd | マルチウィンドウ制御装置 |
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- 2001-10-02 EP EP01123676A patent/EP1202575A3/en not_active Withdrawn
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Cited By (1)
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KR20220003002U (ko) | 2021-06-17 | 2022-12-26 | 지이 일렉트리컬 엔지니어링 컴퍼니., 리미티드. | 캔드 모터 펌프 |
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Publication number | Publication date |
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KR20020027206A (ko) | 2002-04-13 |
EP1202575A3 (en) | 2004-03-31 |
US20020039385A1 (en) | 2002-04-04 |
CN1346217A (zh) | 2002-04-24 |
TW526663B (en) | 2003-04-01 |
JP3639517B2 (ja) | 2005-04-20 |
EP1202575A2 (en) | 2002-05-02 |
US6952451B2 (en) | 2005-10-04 |
CN1203676C (zh) | 2005-05-25 |
JP2002112195A (ja) | 2002-04-12 |
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