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1. 发明授权

US06366699B1 Scheme for extractions and recognitions of telop characters from video data 有权
标题翻译：从视频数据中提取和识别字幕字符的方案
公开(公告)号：US06366699B1
公开(公告)日：2002-04-02
申请号：US09204957
申请日：1998-12-03
申请人： Hidetaka Kuwano , Hiroyuki Arai , Shoji Kurakake , Kenji Ogura , Toshiaki Sugimura , Minoru Mori , Minoru Takahata
发明人： Hidetaka Kuwano , Hiroyuki Arai , Shoji Kurakake , Kenji Ogura , Toshiaki Sugimura , Minoru Mori , Minoru Takahata
IPC分类号： G06K900
CPC分类号： H04N21/44008 , G06K9/325 , G06K2209/01 , G11B27/105 , G11B27/107 , G11B27/11 , G11B27/28 , G11B2220/2562 , G11B2220/90 , H04N5/4401 , H04N5/44504 , H04N5/765 , H04N5/775 , H04N21/4622 , H04N21/4828 , H04N21/4884
摘要： A scheme for detecting telop character displaying frames in video image which is capable of suppressing erroneous detection of frames without telop characters due to instability of image features is disclosed. In this scheme, each input frame constituting the video data is entered, and whether each input frame is a telop character displaying frame in which telop characters are displayed or not is judged, according to edge pairs detected from each input frame by detecting each two adjacent edge pixels for which intensity gradient directions are opposite on some scanning line used in judging an intensity gradient direction at each edge pixel and for which an intensity difference between said two adjacent edge pixels is within a prescribed range as one edge pair, edge pixels being pixels at which an intensity value locally changes by at least a prescribed amount with respect to a neighboring pixel among a plurality of pixels constituting each input frame.
摘要翻译：公开了一种用于检测视频图像中的字幕字符显示帧的方案，其能够抑制由于图像特征的不稳定性而没有字幕字符的帧的错误检测。在该方案中，输入构成视频数据的每个输入帧，并且根据从每个输入帧检测到的边缘对来判断每个输入帧是否是显示字幕字符的字幕字符显示帧，边缘像素，其强度梯度方向在用于判断每个边缘像素处的强度梯度方向的一些扫描线上相反，并且所述两个相邻边缘像素之间的强度差在规定范围内作为一个边缘对，边缘像素是像素其中强度值相对于构成每个输入帧的多个像素中的相邻像素局部地改变至少规定量。

2. 发明授权

US06501856B2 Scheme for extraction and recognition of telop characters from video data 有权
公开(公告)号：US06501856B2
公开(公告)日：2002-12-31
申请号：US09967431
申请日：2001-09-28
申请人： Hidetaka Kuwano , Hiroyuki Arai , Shoji Kurakake , Kenji Ogura , Toshiaki Sugimura , Minoru Mori , Minoru Takahata
发明人： Hidetaka Kuwano , Hiroyuki Arai , Shoji Kurakake , Kenji Ogura , Toshiaki Sugimura , Minoru Mori , Minoru Takahata
IPC分类号： G06K900
CPC分类号： H04N21/44008 , G06K9/325 , G06K2209/01 , G11B27/105 , G11B27/107 , G11B27/11 , G11B27/28 , G11B2220/2562 , G11B2220/90 , H04N5/4401 , H04N5/44504 , H04N5/765 , H04N5/775 , H04N21/4622 , H04N21/4828 , H04N21/4884
摘要： A scheme for detecting telop character displaying frames in video image which is capable of suppressing erroneous detection of frames without telop characters due to instability of image features is disclosed. In this scheme, each input frame constituting the video data is entered, and whether each input frame is a telop character displaying frame in which telop characters are displayed or not is judged, according to edge pairs detected from each input frame by detecting each two adjacent edge pixels for which intensity gradient directions are opposite on some scanning line used in judging an intensity gradient direction at each edge pixel and for which an intensity difference between said two adjacent edge pixels is within a prescribed range as one edge pair, edge pixels being pixels at which an intensity value locally changes by at least a prescribed amount with respect to a neighboring pixel among a plurality of pixels constituting each input frame.

3. 发明授权

US07704478B2 Method and apparatus for refining silicon using an electron beam 失效
标题翻译：使用电子束精炼硅的方法和装置
公开(公告)号：US07704478B2
公开(公告)日：2010-04-27
申请号：US11483187
申请日：2006-07-10
申请人： Norichika Yamauchi , Takehiko Shimada , Minoru Mori
发明人： Norichika Yamauchi , Takehiko Shimada , Minoru Mori
IPC分类号： C01B33/02
CPC分类号： C01B33/037
摘要： A method and apparatus for refining silicon which can remove impurity elements such as phosphorus and antimony as well as impurity elements such as boron and carbon using an electron beam in the same vacuum chamber are provided. Silicon is irradiated and melted with an electron beam in a low vacuum inside a vacuum vessel, a compound-forming substance such as H2O which reacts with boron or the like in the molten silicon and forms a vaporizable oxide is introduced into the vacuum chamber, and impurity elements such as boron having a low vapor pressure in a vacuum are evaporated from the molten silicon as part of the vaporizable compound. Silicon in the vacuum vessel is then irradiated with an electron beam in a high vacuum in the vacuum vessel, and impurity elements contained in the silicon having a high vapor pressure in a vacuum such as phosphorus are removed.
摘要翻译：提供了一种用于精制硅的方法和装置，其可以在相同的真空室中使用电子束来除去诸如磷和锑之类的杂质元素以及诸如硼和碳的杂质元素。将硅用真空容器内的低真空中的电子束照射和熔融，在熔融硅中与硼等反应并形成可蒸发氧化物的化合物形成物质如H 2 O被引入真空室中，并且作为蒸发化合物的一部分，作为真空中具有低蒸气压的硼的杂质元素从熔融硅中蒸发掉。然后在真空容器中用真空中的电子束照射真空容器中的硅，除去在诸如磷的真空中具有高蒸气压的硅中所含的杂质元素。

4. 发明申请

US20070077191A1 Method and apparatus for refining silicon using an electron beam 失效
标题翻译：使用电子束精炼硅的方法和装置
公开(公告)号：US20070077191A1
公开(公告)日：2007-04-05
申请号：US11483187
申请日：2006-07-10
申请人： Norichika Yamauchi , Takehiko Shimada , Minoru Mori
发明人： Norichika Yamauchi , Takehiko Shimada , Minoru Mori
IPC分类号： C01B33/037 , C01B33/02
CPC分类号： C01B33/037
摘要： A method and apparatus for refining silicon which can remove impurity elements such as phosphorus and antimony as well as impurity elements such as boron and carbon using an electron beam in the same vacuum chamber are provided. Silicon is irradiated and melted with an electron beam in a low vacuum inside a vacuum vessel, a compound-forming substance such as H2O which reacts with boron or the like in the molten silicon and forms a vaporizable oxide is introduced into the vacuum chamber, and impurity elements such as boron having a low vapor pressure in a vacuum are evaporated from the molten silicon as part of the vaporizable compound. Silicon in the vacuum vessel is then irradiated with an electron beam in a high vacuum in the vacuum vessel, and impurity elements contained in the silicon having a high vapor pressure in a vacuum such as phosphorus are removed.
摘要翻译：提供了一种用于精制硅的方法和装置，其可以在相同的真空室中使用电子束来除去诸如磷和锑之类的杂质元素以及诸如硼和碳的杂质元素。用真空容器内的低真空中的电子束照射硅，将熔融硅中与硼等反应的化合物形成物质如H 2 O 2熔化并形成可蒸发的氧化物被引入到真空室中，并且作为可汽化化合物的一部分，从作为可蒸发化合物的一部分的熔融硅中蒸发真空中具有低蒸气压的硼的杂质元素。然后在真空容器中用真空中的电子束照射真空容器中的硅，除去在诸如磷的真空中具有高蒸气压的硅中所含的杂质元素。

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