发明授权
US06977664B1 Method for separating background sprite and foreground object and method for extracting segmentation mask and the apparatus
失效
用于分离背景精灵和前景对象的方法以及用于提取分割掩码和装置的方法
- 专利标题： Method for separating background sprite and foreground object and method for extracting segmentation mask and the apparatus
- 专利标题（中）： 用于分离背景精灵和前景对象的方法以及用于提取分割掩码和装置的方法
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申请号： US09667097申请日： 2000-09-21
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公开(公告)号： US06977664B1公开(公告)日： 2005-12-20
- 发明人: Kumi Jinzenji , Shigeki Okada , Hiroshi Watanabe , Naoki Kobayashi
- 申请人： Kumi Jinzenji , Shigeki Okada , Hiroshi Watanabe , Naoki Kobayashi
- 申请人地址： JP Tokyo
- 专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人： Nippon Telegraph and Telephone Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenyon & Kenyon
- 优先权： JP11-271142 19990924; JP11-271143 19990924; JP2000-232226 20000731
- 主分类号： G06T7/20
- IPC分类号： G06T7/20 ; G09G5/00
摘要：
A method is provided for extracting a foreground object and a background sprite, wherein a provisional sprite is generated, the foreground and the background is separated on the basis of the provisional sprite, and the background sprite is generated. Another method is provided for extracting a segmentation mask by using a difference image, including a first step of regarding each of first macro-blocks as the foreground when an value of the first macro-block is larger than a first predetermined value and a second step of regarding each of second macro-blocks as the foreground when an value of the second macro-block is larger than a second predetermined value, the second macro-block being close to a macro-block which is determined as the foreground in the first step.