发明申请
- 专利标题： INFORMATION ENCODING APPARATUS AND METHOD, INFORMATION RETRIEVAL APPARATUS AND METHOD, INFORMATION RETRIEVAL SYSTEM AND METHOD, AND PROGRAM
- 专利标题（中）： 信息编码装置和方法，信息检索装置和方法，信息检索系统和方法及程序
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申请号： US12212345申请日： 2008-09-17
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公开(公告)号： US20090110318A1公开(公告)日： 2009-04-30
- 发明人: Seiichi Inomata , Hideo Nakaya , Takashi Horishi , Tsugihiko Haga , Ryosuke Araki , Takuro Kawai , Toshiyuki Hino , Tetsujiro Kondo
- 申请人： Seiichi Inomata , Hideo Nakaya , Takashi Horishi , Tsugihiko Haga , Ryosuke Araki , Takuro Kawai , Toshiyuki Hino , Tetsujiro Kondo
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-281030 20071029
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
An information retrieval apparatus includes an obtaining unit configured to obtain dynamic ranges or re-quantization codes of a target object to be retrieved and dynamic ranges or re-quantization codes of each of comparison objects to be compared with the target object, the dynamic ranges or re-quantization codes of the target object and the dynamic ranges or re-quantization codes of the comparison objects being obtained as a result of adaptive dynamic range coding; a distance computation unit configured to compute distances between the target object and the comparison objects using the obtained dynamic ranges or re-quantization codes of the target object and the obtained dynamic ranges or re-quantization codes of the comparison objects; and a comparison unit configured to compare the distances between the target object and the comparison objects to select one of the comparison objects having a minimum distance.