JP7017223B2 - 動画圧縮方法 - Google Patents
動画圧縮方法 Download PDFInfo
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- JP7017223B2 JP7017223B2 JP2017148553A JP2017148553A JP7017223B2 JP 7017223 B2 JP7017223 B2 JP 7017223B2 JP 2017148553 A JP2017148553 A JP 2017148553A JP 2017148553 A JP2017148553 A JP 2017148553A JP 7017223 B2 JP7017223 B2 JP 7017223B2
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Description
Claims (1)
- 複数の被圧縮フレームを含む被圧縮動画の情報量を圧縮する動画圧縮方法であって、
前記被圧縮動画中の複数のオブジェクトそれぞれを静的オブジェクトと動的オブジェクトに分離し、
被圧縮フレーム群の先頭フレームが、必ずシーンの切り換えの直後のフレームとなるように、前記被圧縮動画のシーンの切り換えを検出して、前記被圧縮動画をシーン毎に分割して、複数の被圧縮フレーム群を生成し、
前記被圧縮フレーム群の先頭に位置する被圧縮フレームをIフレームとして抽出し、
前記動的オブジェクトの画像の変化量が閾値以上となる前記被圧縮フレームを検出し、この被圧縮フレームに基づいてPフレームを生成し、
前記Iフレームと前記Pフレームの間の1以上の前記被圧縮フレームそれぞれに基づいて1以上のBフレームを生成する
ことを特徴とする動画圧縮方法。
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JP2017148553A JP7017223B2 (ja) | 2017-07-31 | 2017-07-31 | 動画圧縮方法 |
JP2022006852A JP2022070859A (ja) | 2017-07-31 | 2022-01-20 | 動画圧縮方法 |
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JP2019029870A JP2019029870A (ja) | 2019-02-21 |
JP7017223B2 true JP7017223B2 (ja) | 2022-02-08 |
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JP2022006852A Pending JP2022070859A (ja) | 2017-07-31 | 2022-01-20 | 動画圧縮方法 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002010270A (ja) | 2000-06-27 | 2002-01-11 | Mitsubishi Electric Corp | 画像符号化装置及び画像符号化方法 |
US20050147167A1 (en) | 2003-12-24 | 2005-07-07 | Adriana Dumitras | Method and system for video encoding using a variable number of B frames |
US20110069757A1 (en) | 2008-05-22 | 2011-03-24 | Satya Ghosh Ammu | Content adaptive video encoder and coding method |
JP2011514120A (ja) | 2008-03-10 | 2011-04-28 | トムソン ライセンシング | 改善された効率及び主観的な品質をサポートする予測フレームの選択方法及び装置 |
JP2011239255A (ja) | 2010-05-12 | 2011-11-24 | Nippon Telegr & Teleph Corp <Ntt> | 映像符号化方法,映像符号化装置および映像符号化プログラム |
US20150208072A1 (en) | 2014-01-22 | 2015-07-23 | Nvidia Corporation | Adaptive video compression based on motion |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3173257B2 (ja) * | 1993-11-09 | 2001-06-04 | 松下電器産業株式会社 | 符号化方法と符号化装置 |
JPH0951538A (ja) * | 1995-08-07 | 1997-02-18 | Hitachi Ltd | 画像信号の符号化方法 |
JP3604864B2 (ja) * | 1997-04-25 | 2004-12-22 | シャープ株式会社 | 動画像符号化装置 |
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- 2017-07-31 JP JP2017148553A patent/JP7017223B2/ja active Active
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- 2022-01-20 JP JP2022006852A patent/JP2022070859A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002010270A (ja) | 2000-06-27 | 2002-01-11 | Mitsubishi Electric Corp | 画像符号化装置及び画像符号化方法 |
US20050147167A1 (en) | 2003-12-24 | 2005-07-07 | Adriana Dumitras | Method and system for video encoding using a variable number of B frames |
JP2011514120A (ja) | 2008-03-10 | 2011-04-28 | トムソン ライセンシング | 改善された効率及び主観的な品質をサポートする予測フレームの選択方法及び装置 |
US20110069757A1 (en) | 2008-05-22 | 2011-03-24 | Satya Ghosh Ammu | Content adaptive video encoder and coding method |
JP2011239255A (ja) | 2010-05-12 | 2011-11-24 | Nippon Telegr & Teleph Corp <Ntt> | 映像符号化方法,映像符号化装置および映像符号化プログラム |
US20150208072A1 (en) | 2014-01-22 | 2015-07-23 | Nvidia Corporation | Adaptive video compression based on motion |
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JP2022070859A (ja) | 2022-05-13 |
JP2019029870A (ja) | 2019-02-21 |
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