Invention Grant
US09277217B2 Video coding device for coding videos of a plurality of qualities to generate streams and video playback device for playing back streams
有权
用于编码多个品质的视频的视频编码装置,以产生用于播放流的流和视频播放装置
- Patent Title: Video coding device for coding videos of a plurality of qualities to generate streams and video playback device for playing back streams
- Patent Title (中): 用于编码多个品质的视频的视频编码装置,以产生用于播放流的流和视频播放装置
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Application No.: US13978458Application Date: 2012-02-15
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Publication No.: US09277217B2Publication Date: 2016-03-01
- Inventor: Taiji Sasaki , Hiroshi Yahata , Tomoki Ogawa , Tadamasa Toma
- Applicant: Taiji Sasaki , Hiroshi Yahata , Tomoki Ogawa , Tadamasa Toma
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- International Application: PCT/JP2012/000974 WO 20120215
- International Announcement: WO2012/111320 WO 20120823
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N19/30 ; H04N19/597

Abstract:
Provided are video encoding device that encodes high-quality video, restricting increase of the required bandwidth, while maintaining playback compatibility with playback devices conforming to MPEG-2 standard, and video playback device. Data creation device 5401 includes: 2D compatible video encoder 2602 that generates stream conforming to MPEG-2 format by compress-encoding original video of normal quality; base-view video encoder 2605 that generates stream, composed of black images, that includes the same number of pictures as stream that is obtained by compress-encoding original video; and dependent-view video encoder 5409 that generates dependent-view video stream by compress-encoding higher-quality original video, by using, as reference pictures, pictures included in stream conforming to the MPEG-2 format that have the same time information as pictures included in the base-view video stream that correspond to pictures constituting higher-quality original video.
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