发明授权
- 专利标题: Moving picture transcoding apparatus, moving picture transcoding method, and moving picture transcoding program
- 专利标题(中): 运动图像转码装置,运动图像转码方法和运动图像转码程序
-
申请号: US12600988申请日: 2008-05-23
-
公开(公告)号: US08811481B2公开(公告)日: 2014-08-19
- 发明人: Kazuteru Watanabe , Kazunori Ozawa , Hironori Ito
- 申请人: Kazuteru Watanabe , Kazunori Ozawa , Hironori Ito
- 申请人地址: JP Tokyo
- 专利权人: NEC Corporation
- 当前专利权人: NEC Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2007-141507 20070529
- 国际申请: PCT/JP2008/059952 WO 20080523
- 国际公布: WO2008/146892 WO 20081204
- 主分类号: H04N7/32
- IPC分类号: H04N7/32 ; H04N7/26 ; H04N21/2343
摘要:
To provide a moving picture transcoding apparatus capable of suppressing deterioration of an image quality and capable of reducing a calculation amount required for transcoding an image, the moving picture transcoding apparatus which transcodes encoded moving picture data includes: a moving picture data producing unit for producing new moving picture data in which a specific frame of the encoded moving picture data is set as a head thereof; and a judging unit for judging whether or not a succeeding frame of the specific frame has been encoded by referring to a frame preceding the specific frame. Further, the moving picture data producing unit includes: a first frame transcoding process unit for transcoding the specific frame to a first frame which does not refer to another frame; and a succeeding frame transcoding process unit for again encoding a succeeding frame, which has been judged by the judging unit to refer to the frame preceding the specific frame, by referring to any one frame in a range from the succeeding frame judged by the judging unit to the specific frame.
公开/授权文献
信息查询