发明授权
- 专利标题: System for coding and transmitting motion image signals
- 专利标题(中): 用于编码和传输运动图像信号的系统
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申请号: US21909申请日: 1987-03-04
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公开(公告)号: US4805017A公开(公告)日: 1989-02-14
- 发明人: Masahide Kaneko , Kiichi Matsuda , Naoki Mukawa , Toshio Koga
- 申请人: Masahide Kaneko , Kiichi Matsuda , Naoki Mukawa , Toshio Koga
- 申请人地址: JPX Tokyo JPX Kawasaki JPX Tokyo JPX Tokyo
- 专利权人: Kokusai Denshin Denwa Co., Ltd.,Fujitsu Limited,Nippon Telegraph and Telephone Corporation,NEC Corporation
- 当前专利权人: Kokusai Denshin Denwa Co., Ltd.,Fujitsu Limited,Nippon Telegraph and Telephone Corporation,NEC Corporation
- 当前专利权人地址: JPX Tokyo JPX Kawasaki JPX Tokyo JPX Tokyo
- 优先权: JPX61-47125 19860304
- 主分类号: H04N19/50
- IPC分类号: H04N19/50 ; G06T9/00 ; H04N7/18 ; H04N7/12
摘要:
A motion compensation difference interframe or intra-frame coding system includes a block data redundancy compression and coding unit, a PIXEL data coding unit and a prediction data generator unit. The block data redundancy compression and coding unit codes a motion compensated (MC) difference between an input image in a block and a motion predicted image from the prediction data generator unit, and transmits coded data to a receiver. The PIXEL data coding unit receives an error between the MC difference and a decoded MC difference from the block data redundancy compression and coding unit, rearranges the error in PIXEL data and codes the PIXEL error, when the error is greater than a predetermined value. The PIXEL coded data is also transmitted to the receiver. The prediction data generator unit generates predicted block data of the motion of the image. The redundancy compression and coding unit may include a filter circuit rejecting pulse components contained in the MC difference.
公开/授权文献
- US5418602A Image processing with anti-forgery provision 公开/授权日:1995-05-23
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