KR20010030721A - 적은 크기의 메모리로 비디오 디코더에 기준 프레임을저장하기 위한 방법 및 장치 - Google Patents
적은 크기의 메모리로 비디오 디코더에 기준 프레임을저장하기 위한 방법 및 장치 Download PDFInfo
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Abstract
Description
Claims (10)
- 비디오 디코더에서, 비트스트림 내의 비디오 정보를 디코딩하는 방법에 있어서,상기 비트스트림으로부터 제 1 기준 프레임을 디코딩하는 단계;압축된 제 1 기준 프레임을 형성하기 위해 상기 제 1 기준 프레임을 압축하는 단계;상기 압축된 제 1 기준 프레임을 저장 매체에 저장하는 단계; 및비디오 정보를 형성하기 위해 상기 비트스트림을 디코딩할 필요가 있을 때, 상기 압축된 제 1 기준 프레임의 적어도 일부를 불러내고 복원하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 비트스트림으로부터 제 2 기준 프레임을 디코딩하는 단계;압축된 제 2 기준 프레임을 형성하기 위해 상기 제 2 기준 프레임을 압축하는 단계;상기 압축된 제 2 기준 프레임을 상기 저장 매체에 저장하는 단계; 및비디오 정보를 형성하기 위해 상기 비트스트림을 디코딩할 필요가 있을 때, 상기 압축된 제 2 기준 프레임의 적어도 일부를 불러내고 복원하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 압축된 제 1 기준 프레임을 상기 압축된 제 2 기준 프레임으로 대체하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,압축된 제 2 기준 프레임을 디코딩하기 위해 상기 압축된 제 1 기준 프레임을 사용하는 단계;상기 압축된 제 2 기준 프레임을 상기 압축된 제 1 기준 프레임으로 재명명하고 및 상기 압축된 제 2 기준 프레임을 상기 압축된 제 1 기준 프레임으로 재명명하는 단계; 및상기 비트스트림을 디코딩하기 위해 상기 압축된 제 1 및 제 2 기준 프레임 의 일부를 복원하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 블록형 비디오 디코더에서, 인코딩된 비디오 정보의 비트스트림에 포함된 기준 프레임들을 이용하는 방법에 있어서,(a) 제 1 기준 프레임을 디코딩하고 압축하는 단계;(b) 제 2 기준 프레임을 디코딩하고 압축하는 단계;(c) 상기 비트스트림의 다른 프레임을 디코딩하기 위해 상기 제 1 또는 제 2 기준 프레임의 일부를 선택적으로 복원하는 단계;(d) 상기 비트스트림의 각 새로운 기준 프레임을 디코딩할 때, 상기 제 1 및 제 2 기준 프레임들 중 가장 오래된 기준 프레임을 상기 새로운 기준 프레임으로 대체하는 단계; 및(e) 단계(c) 및 (d)을 반복하는 단계를 포함하는 것을 특징으로 하는 방법.
- 제 5 항에 있어서, 상기 대체 단계는상기 가장 오래된 기준 프레임을 대체 할 때, 잔여 기준 프레임의 일부로써 저장된 일부 정보를 삭제하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 6 항에 있어서, 상기 압축 단계는기준 영상을 영역들로 나누는 단계;각 영역을 개별적으로 압축하는 단계; 및상기 압축된 영역들을 저장하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 비디오 정보를 포함하는 비트스트림을 디코딩하기 위한 비디오 디코더에 있어서,기준 프레임 디코더;상기 기준 프레임 디코더에 연결되고, 기준 프레임을 압축하고 복원하기 위한 제 1 압축기/복원기; 및상기 압축기/복원기에 연결되고, 상기 기준 프레임의 일부분들이 다른 프레임들을 디코딩하기 위해서 필요할 때까지 상기 압축된 기준 프레임들을 저장하기 위한 제 1 메모리를 포함하는 것을 특징으로 하는 비디오 디코더.
- 제 8 항에 있어서,상기 기준 프레임 디코더에 연결되고, 기준 프레임들을 압축하고 복원하기 위한 제 2 압축기/복원기; 및상기 압축기/복원기에 연결되고, 상기 기준 프레임들이 다른 프레임들을 디코딩하기 위하여 필요할 때까지 상기 압축된 기준 프레임들을 저장하기 위한 제 2 메모리를 더 포함하는 것을 특징으로 하는 비디오 디코더.
- 제 9 항에 있어서, 상기 제 1 압축기/복원기는 손실 압축을 행하고 상기 제 2 압축기/복원기는 무손실 압축을 행하는 것을 특징으로 하는 비디오 디코더.
Applications Claiming Priority (6)
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US6011297P | 1997-09-26 | 1997-09-26 | |
US60/060,112 | 1997-09-26 | ||
US9/001,201 | 1997-12-30 | ||
US09/001,201 | 1997-12-30 | ||
US09/001,201 US5933195A (en) | 1997-09-26 | 1997-12-30 | Method and apparatus memory requirements for storing reference frames in a video decoder |
PCT/US1998/020314 WO1999016253A1 (en) | 1997-09-26 | 1998-09-28 | Method and apparatus for reducing memory requirements for storing reference frames in a video decoder |
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KR20010030721A true KR20010030721A (ko) | 2001-04-16 |
KR100635687B1 KR100635687B1 (ko) | 2006-10-17 |
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KR1020007003230A KR100635687B1 (ko) | 1997-09-26 | 1998-09-28 | 적은 크기의 메모리로 비디오 디코더에 기준 프레임을저장하기 위한 방법 및 장치 |
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US (1) | US5933195A (ko) |
EP (1) | EP1025709B1 (ko) |
JP (1) | JP2001517906A (ko) |
KR (1) | KR100635687B1 (ko) |
CN (1) | CN1147162C (ko) |
AU (1) | AU9588198A (ko) |
DE (1) | DE69838729T2 (ko) |
WO (1) | WO1999016253A1 (ko) |
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JP3322233B2 (ja) * | 1999-03-19 | 2002-09-09 | 日本電気株式会社 | 動画像伸長方法及びそれを実行するプログラムを記録した記録媒体 |
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KR100335057B1 (ko) * | 2000-03-08 | 2002-05-02 | 구자홍 | 동영상 수신 장치 |
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- 1998-09-28 KR KR1020007003230A patent/KR100635687B1/ko not_active IP Right Cessation
- 1998-09-28 DE DE69838729T patent/DE69838729T2/de not_active Expired - Lifetime
- 1998-09-28 JP JP2000513414A patent/JP2001517906A/ja active Pending
- 1998-09-28 CN CNB988095289A patent/CN1147162C/zh not_active Expired - Lifetime
- 1998-09-28 EP EP98949587A patent/EP1025709B1/en not_active Expired - Lifetime
- 1998-09-28 AU AU95881/98A patent/AU9588198A/en not_active Abandoned
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US9918085B2 (en) | 1999-03-12 | 2018-03-13 | Microsoft Technology Licensing, Llc | Media coding for loss recovery with remotely predicted data units |
KR101132351B1 (ko) * | 2004-05-03 | 2012-04-05 | 톰슨 리서치 펀딩 코포레이션 | Dsl 시스템에 대해 고속으로 채널 변경할 수 있게 하는 방법 및 장치 |
US9866871B2 (en) | 2004-12-30 | 2018-01-09 | Microsoft Technology Licensing, Llc | Use of frame caching to improve packet loss recovery |
US10341688B2 (en) | 2004-12-30 | 2019-07-02 | Microsoft Technology Licensing, Llc | Use of frame caching to improve packet loss recovery |
Also Published As
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DE69838729D1 (de) | 2007-12-27 |
CN1299562A (zh) | 2001-06-13 |
US5933195A (en) | 1999-08-03 |
EP1025709A4 (en) | 2001-05-02 |
CN1147162C (zh) | 2004-04-21 |
EP1025709B1 (en) | 2007-11-14 |
JP2001517906A (ja) | 2001-10-09 |
EP1025709A1 (en) | 2000-08-09 |
AU9588198A (en) | 1999-04-12 |
DE69838729T2 (de) | 2008-10-30 |
KR100635687B1 (ko) | 2006-10-17 |
WO1999016253A1 (en) | 1999-04-01 |
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