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1.
公开(公告)号:US20110001839A1
公开(公告)日:2011-01-06
申请号:US12749860
申请日:2010-03-30
申请人: Koji ARIMURA , Kenjiro Tsuda , Tatsuro Juri , Yasuharu Tanaka , Yoshimitsu Sasaki , Shinji Kitamura
发明人: Koji ARIMURA , Kenjiro Tsuda , Tatsuro Juri , Yasuharu Tanaka , Yoshimitsu Sasaki , Shinji Kitamura
CPC分类号: H04N19/137 , H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/597
摘要: A picture coding apparatus includes a static area information calculating unit that calculates static area information indicating a size of a static area of which motion is smaller than a predetermined value for each of fields included in an interlaced picture, a reference field selecting unit that selects, as a reference field to be used to predict a field to be coded, one of a field having of the same parity as a field to be coded and a field having the opposite parity of the field to be coded, among fields previously coded, based on the static area information of the fields previously coded, and a coding unit that codes the field to be coded by using the reference field selected by the reference field selecting unit.
摘要翻译: 一种图像编码装置,包括静态区域信息计算单元,该静态区域信息计算单元针对包含在隔行扫描图像中的每一场计算指示运动小于预定值的静态区域的大小的静态区域信息;参考场选择单元, 作为用于预测要编码的场的参考场,在先前编码的场中,具有与要编码的场相同的奇偶校验的场和要被编码的场的相反奇偶校验的场之一 关于先前编码的字段的静态区域信息,以及编码单元,其通过使用由参考字段选择单元选择的参考字段对要编码的字段进行编码。
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2.
公开(公告)号:US20080151996A1
公开(公告)日:2008-06-26
申请号:US11954483
申请日:2007-12-12
申请人: Koji ARIMURA , Tatsuro Juri , Hideyuki Ohgose , Katsuo Saigo , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
发明人: Koji ARIMURA , Tatsuro Juri , Hideyuki Ohgose , Katsuo Saigo , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
IPC分类号: H04N7/40
CPC分类号: H04N19/112 , H04N19/137 , H04N19/15 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/40 , H04N19/61
摘要: The moving picture coding apparatus according to the present invention includes: a decoding unit 10 which decodes an MPEG2 stream; a coding parameter extracting unit 11 which extracts a coding parameter of MPEG2 from the MPEG stream; a re-coding parameter determining unit 12 which judges, based on the coding parameter of MPEG2 extracted by the coding parameter extracting unit 11, the degree of correlation between image data coded in MPEG2 and its reference picture and determines a coding parameter of H.264 based on the result of the judgment; and a coding unit 13 which codes, in H.264, the image data decoded by the decoding unit 10, using the coding parameter of H.264 determined by the re-coding parameter determining unit 12.
摘要翻译: 根据本发明的运动图像编码装置包括:解码单元10,其解码MPEG2流; 编码参数提取单元11,其从MPEG流中提取MPEG2的编码参数; 重新编码参数确定单元12,其基于由编码参数提取单元11提取的MPEG2的编码参数,判断MPEG2编码的图像数据与其参考图像之间的相关度,并确定H.264的编码参数 根据判决结果; 以及编码单元13,其在H.264中使用由重新编码参数确定单元12确定的H.264的编码参数来编码由解码单元10解码的图像数据。
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公开(公告)号:US20080199090A1
公开(公告)日:2008-08-21
申请号:US12031061
申请日:2008-02-14
申请人: Kei TASAKA , Tatsuro JURI , Katsuo SAIGO , Hideyuki OHGOSE , Koji ARIMURA , Hiroshi ARAKAWA , Yuki MARUYAMA
发明人: Kei TASAKA , Tatsuro JURI , Katsuo SAIGO , Hideyuki OHGOSE , Koji ARIMURA , Hiroshi ARAKAWA , Yuki MARUYAMA
IPC分类号: G06K9/36
CPC分类号: H04N19/86 , H04N19/117 , H04N19/134 , H04N19/139 , H04N19/146 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/80
摘要: A coding method conversion apparatus converts the first coded data coded by the first coding method into the second coded data. The coding method conversion apparatus includes: an H.264 decoder which decodes the first coded data; a deblocking filter strength calculation unit which calculates a filter strength of deblocking filtering of a second coding method, using at least one piece of decoding information except a coding type of the first coded data, the decoding information being obtained by decoding the first coded data; and a deblocking filter which performs the deblocking filtering to reduce noise in a boundary of blocks according to the filter strength calculated by the deblocking filter strength calculation unit.
摘要翻译: 编码方法转换装置将通过第一编码方法编码的第一编码数据转换为第二编码数据。 编码方法转换装置包括:解码第一编码数据的H.264解码器; 去块滤波强度计算单元,使用除了第一编码数据的编码类型之外的至少一条解码信息,计算第二编码方法的去块滤波的滤波强度,解码信息是通过解码第一编码数据而获得的; 以及去块滤波器,其执行去块滤波以根据由去块滤波器强度计算单元计算的滤波强度来减小块边界中的噪声。
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