发明申请
- 专利标题: ENCODING AND DECODING OF VIDEO DATA
- 专利标题(中): 编码和解码视频数据
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申请号: US13038239申请日: 2011-03-01
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公开(公告)号: US20120224632A1公开(公告)日: 2012-09-06
- 发明人: Andreas KRUTZ , Alexander GLANTZ , Thomas SIKORA
- 申请人: Andreas KRUTZ , Alexander GLANTZ , Thomas SIKORA
- 专利权人: Technische Universitat Berlin
- 当前专利权人: Technische Universitat Berlin
- 主分类号: H04N7/32
- IPC分类号: H04N7/32
摘要:
An embodiment of the invention relates to a method for providing a compressed video bitstream related to consecutive pictures of a video sequence, wherein the pictures are defined by pixels, said method comprising the steps of: (a) applying at least one higher-order motion model to a motion vector field and generating at least one higher-order motion parameter set for said motion vector field, wherein said motion vector field comprises a plurality of first motion vectors, each first motion vector being assigned to a pixel block and describing the local displacement of the pixel block from the preceding picture to the consecutive picture, and wherein each pixel block comprises a plurality of pixels; (b) calculating a second motion vector for each pixel block based on the higher-order motion parameter set; (c) calculating the deviation between the first motion vector and the second motion vector for each pixel block; and (d) generating a video bitstream comprising the higher-order motion parameter set, and for each pixel block an information which indicates or is based on the deviation calculated in step (c).
公开/授权文献
- US08743962B2 Encoding and decoding of video data 公开/授权日:2014-06-03
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