发明授权
US07903891B2 Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program
失效
图像编码装置，图像解码装置，图像编码方法，图像解码方法，图像编码程序和图像解码程序
- 专利标题： Image encoding apparatus, image decoding apparatus, image encoding method, image decoding method, image encoding program, and image decoding program
- 专利标题（中）： 图像编码装置，图像解码装置，图像编码方法，图像解码方法，图像编码程序和图像解码程序
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申请号： US11754110申请日： 2007-05-25
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公开(公告)号： US07903891B2公开(公告)日： 2011-03-08
- 发明人: Kazuo Sugimoto , Satoru Adachi , Sadaatsu Kato , Minoru Etoh , Mitsuru Kobayashi , Hiroyuki Yamaguchi
- 申请人： Kazuo Sugimoto , Satoru Adachi , Sadaatsu Kato , Minoru Etoh , Mitsuru Kobayashi , Hiroyuki Yamaguchi
- 申请人地址： JP Tokyo
- 专利权人： NTT DoCoMo, Inc.
- 当前专利权人： NTT DoCoMo, Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2002-127471 20020426; JP2002-127485 20020426; JP2002-195158 20020703; JP2002-195162 20020703
- 主分类号： G06K9/36
- IPC分类号： G06K9/36 ; G06K9/46 ; H04N7/12 ; H04N11/02 ; H04N11/04 ; H03M7/40
摘要：
Variable-length encoder 16 feeds a CBP as an input symbol H1 to variable-length code output part 30. Coded symbol memory 31 supplies CBPs in neighboring blocks as coding map table reference information H2 to coding map table provider 32. Coding map table provider 32 determines a coding map table used in coding of the CBP, based on these CBPs in the neighboring blocks, and provides a coding map table H4 to variable-length code output part 30. Variable-length coding table provider 33 feeds a variable-length coding table H5 to variable-length code output part 30. Then the coding target CBP is subjected to variable-length coding, and the resultant is outputted as coded data D9. This allows information source coding of coding symbols to be performed efficiently according to the coding condition and the property of image.
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