发明授权
- 专利标题: Coding and decoding method and device
- 专利标题(中): 编码和解码方法及装置
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申请号: US11659211申请日: 2005-07-27
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公开(公告)号: US08428140B2公开(公告)日: 2013-04-23
- 发明人: Peter Amon , Andreas Hutter , Benoit Timmermann
- 申请人: Peter Amon , Andreas Hutter , Benoit Timmermann
- 申请人地址: DE Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE Munich
- 代理机构: Staas & Halsey LLP
- 优先权: DE102004038110 20040805
- 国际申请: PCT/EP2005/053675 WO 20050727
- 国际公布: WO2006/015947 WO 20060216
- 主分类号: H04N7/12
- IPC分类号: H04N7/12
摘要:
In a method for the video coding of image sequences images in the image sequence are coded in a scaled manner, in such a way that the video data produced contains information which permits the images to be represented in a plurality of differing stages of image resolution, the latter being defined by the number of pixels per image representation. The coding is block-based, in such a way that to describe a displacement of parts of one of the images, said displacement being contained in the image sequence, at least one block structure that describes the displacement is created. Said block structure is configured from one block, which is subdivided into sub-blocks, whereby some of the sub-blocks are further subdivided into successively smaller sub-blocks. A first block structure is temporarily created for at least one first resolution stage and a second block structure is created for a second resolution stage, the first resolution stage having a lower number of pixels than the second resolution stage. In addition, the second block structure is compared with the first block structure to determine the differences in structure, in order to create a modified second block structure on the basis of characteristics of the structural differences, said modified block structure representing part of the second block structure and forming the basis for the coding of the image sequence.
公开/授权文献
- US20080292002A1 Coding and Decoding Method and Device 公开/授权日:2008-11-27
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