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公开(公告)号:US20100104206A1
公开(公告)日:2010-04-29
申请号:US12408901
申请日:2009-03-23
申请人: Masahiro Moriyama , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Hiromu Hasegawa
发明人: Masahiro Moriyama , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Hiromu Hasegawa
IPC分类号: G06K9/00
CPC分类号: H04N19/436 , H04N19/60
摘要: An image compression apparatus performs quantization of DC component data, low-pass component data and high-pass component data which are generated by frequency conversion of still image data. An extracting part extracts additional data and coding object data which is to be entropy coded, from quantization data. An entropy coding part performs entropy coding of the coding object data stored in a coding object data memory. An additional data processing part generates a flex bit from the additional data. A pattern information generation part acquires the coding object data directly from the extracting part, to generate pattern information indicating whether the coding object data is zero or not. A bit stream generation part outputs the pattern information, the coding object data and the flex bit in a predetermined order, to output a bit stream.
摘要翻译: 图像压缩装置执行通过静止图像数据的频率转换而产生的直流分量数据,低通分量数据和高通分量数据的量化。 提取部分从量化数据中提取要进行熵编码的附加数据和编码对象数据。 熵编码部对存储在编码对象数据存储器中的编码对象数据进行熵编码。 附加数据处理部分从附加数据生成flex位。 图案信息生成部直接从提取部获取编码对象数据,生成表示编码对象数据是否为零的图案信息。 比特流生成部以预定顺序输出图案信息,编码对象数据和柔性位,以输出比特流。
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公开(公告)号:US08160377B2
公开(公告)日:2012-04-17
申请号:US12408924
申请日:2009-03-23
申请人: Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
发明人: Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
IPC分类号: G06K9/00
摘要: A symbol generation part serially inputs a data string of quantization data. If quantization data of non-zero coefficient is inputted, respective information on an absolute value, a zero run and a sign of the non-zero coefficient are stored in registers. When quantization data of the next non-zero coefficient is inputted, the respective information on the absolute value, the zero run and the sign stored in the registers are updated. At that time, the contents of the registers which have been stored immediately before the input are outputted as symbol data of the immediately preceding non-zero coefficient.
摘要翻译: 符号生成部分串行地输入量化数据的数据串。 如果输入了非零系数的量化数据,则在寄存器中存储关于绝对值,零运行和非零系数的符号的各个信息。 当输入下一个非零系数的量化数据时,更新存储在寄存器中的关于绝对值,零运行和符号的各个信息。 此时,输入之前已经存储的寄存器的内容作为紧接在前的非零系数的符号数据输出。
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公开(公告)号:US08160376B2
公开(公告)日:2012-04-17
申请号:US12408901
申请日:2009-03-23
申请人: Masahiro Moriyama , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Hiromu Hasegawa
发明人: Masahiro Moriyama , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Hiromu Hasegawa
IPC分类号: G06K9/46
CPC分类号: H04N19/436 , H04N19/60
摘要: An image compression apparatus performs quantization of DC component data, low-pass component data and high-pass component data which are generated by frequency conversion of still image data. An extracting part extracts additional data and coding object data which is to be entropy coded, from quantization data. An entropy coding part performs entropy coding of the coding object data stored in a coding object data memory. An additional data processing part generates a flex bit from the additional data. A pattern information generation part acquires the coding object data directly from the extracting part, to generate pattern information indicating whether the coding object data is zero or not. A bit stream generation part outputs the pattern information, the coding object data and the flex bit in a predetermined order, to output a bit stream.
摘要翻译: 图像压缩装置执行通过静止图像数据的频率转换而产生的直流分量数据,低通分量数据和高通分量数据的量化。 提取部分从量化数据中提取要进行熵编码的附加数据和编码对象数据。 熵编码部对存储在编码对象数据存储器中的编码对象数据进行熵编码。 附加数据处理部分从附加数据生成flex位。 图案信息生成部直接从提取部获取编码对象数据,生成表示编码对象数据是否为零的图案信息。 比特流生成部以预定顺序输出图案信息,编码对象数据和柔性位,以输出比特流。
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公开(公告)号:US20100128999A1
公开(公告)日:2010-05-27
申请号:US12408924
申请日:2009-03-23
申请人: Yujiro TANI , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
发明人: Yujiro TANI , Yusuke Mizuno , Hideki Daian , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
IPC分类号: G06K9/00
摘要: A symbol generation part serially inputs a data string of quantization data. If quantization data of non-zero coefficient is inputted, respective information on an absolute value, a zero run and a sign of the non-zero coefficient are stored in registers. When quantization data of the next non-zero coefficient is inputted, the respective information on the absolute value, the zero run and the sign stored in the registers are updated. At that time, the contents of the registers which have been stored immediately before the input are outputted as symbol data of the immediately preceding non-zero coefficient.
摘要翻译: 符号生成部分串行地输入量化数据的数据串。 如果输入了非零系数的量化数据,则在寄存器中存储关于绝对值,零运行和非零系数的符号的各个信息。 当输入下一个非零系数的量化数据时,更新存储在寄存器中的关于绝对值,零运行和符号的各个信息。 此时,输入之前已经存储的寄存器的内容作为紧接在前的非零系数的符号数据输出。
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公开(公告)号:US08369634B2
公开(公告)日:2013-02-05
申请号:US12572878
申请日:2009-10-02
申请人: Nobuhiro Minami , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Masahiro Moriyama , Hiromu Hasegawa
发明人: Nobuhiro Minami , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Masahiro Moriyama , Hiromu Hasegawa
CPC分类号: H04N19/44 , H04N19/105 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/70
摘要: A sorting unit sorts a plurality of data sets of HP component having been processed by a decoding unit, selectively employing one of a first table corresponding to a first orientation of prediction and a second table corresponding to a second orientation of prediction in accordance with an orientation of prediction of HP component. The sorting unit includes an inverse prediction unit performing inverse prediction on data of LP component inputted from the decoding unit, a processing unit obtaining an orientation of prediction of HP component, based on the data of LP component after inverse prediction by the inverse prediction unit, and a selecting unit selecting one of the first and second tables, based on the orientation of prediction of HP component obtained by the processing unit.
摘要翻译: 排序单元对已经由解码单元处理的HP组件的多个数据组进行排序,根据取向选择性地采用与预测的第一取向对应的第一表格和对应于第二预测取向的第二表格中的一个 的HP组件的预测。 排序单元包括对从解码单元输入的LP分量的数据进行逆预测的逆预测单元,基于逆预测单元进行逆预测后的LP分量的数据,获得HP分量的预测取向的处理单元, 以及选择单元,基于由处理单元获得的HP分量的预测方向,选择第一和第二表中的一个。
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公开(公告)号:US08107746B2
公开(公告)日:2012-01-31
申请号:US12405527
申请日:2009-03-17
申请人: Hideki Daian , Yujiro Tani , Yusuke Mizuno , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
发明人: Hideki Daian , Yujiro Tani , Yusuke Mizuno , Nobuhiro Minami , Masahiro Moriyama , Hiromu Hasegawa
IPC分类号: G06K9/36
CPC分类号: H04N19/436 , H04N19/13 , H04N19/156 , H04N19/184 , H04N19/44 , H04N19/60
摘要: A decoding unit includes a first processing unit including ND decoding units and decoding a group of Normal Data, a second processing unit decoding a group of Flex Bits, and a selector. The ND decoding units perform decoding of the group of Normal Data, stepwise varying a start position of decoding in the data stream, concurrently with decoding of the group of Flex Bits by the second processing unit. The selector selects one ND decoding unit with a start position of decoding being set at a position immediately following an end position of the group of Flex Bits, from the ND decoding units, based on a result of decoding of the group of Flex Bits.
摘要翻译: 解码单元包括:第一处理单元,包括ND解码单元和解码一组正常数据;解码一组Flex位的第二处理单元;以及选择器。 ND解码单元执行正常数据组的解码,同时对第二处理单元对Flex位组的解码同步地改变数据流中的解码的开始位置。 所述选择器根据所述Flex位组的解码结果,从ND编码单元选择一个ND解码单元,其中解码的开始位置被设置在紧邻所述Flex位组的结束位置的位置。
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公开(公告)号:US20100111430A1
公开(公告)日:2010-05-06
申请号:US12572878
申请日:2009-10-02
申请人: Nobuhiro MINAMI , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Masahiro Moriyama , Hiromu Hasegawa
发明人: Nobuhiro MINAMI , Yujiro Tani , Yusuke Mizuno , Hideki Daian , Masahiro Moriyama , Hiromu Hasegawa
IPC分类号: G06K9/36
CPC分类号: H04N19/44 , H04N19/105 , H04N19/18 , H04N19/46 , H04N19/593 , H04N19/60 , H04N19/70
摘要: A sorting unit sorts a plurality of data sets of HP component having been processed by a decoding unit, selectively employing one of a first table corresponding to a first orientation of prediction and a second table corresponding to a second orientation of prediction in accordance with an orientation of prediction of HP component. The sorting unit includes an inverse prediction unit performing inverse prediction on data of LP component inputted from the decoding unit, a processing unit obtaining an orientation of prediction of HP component, based on the data of LP component after inverse prediction by the inverse prediction unit, and a selecting unit selecting one of the first and second tables, based on the orientation of prediction of HP component obtained by the processing unit.
摘要翻译: 排序单元对已经由解码单元处理的HP组件的多个数据组进行排序,根据取向选择性地采用与预测的第一取向对应的第一表格和对应于第二预测取向的第二表格中的一个 的HP组件的预测。 排序单元包括对从解码单元输入的LP分量的数据进行逆预测的逆预测单元,基于逆预测单元进行逆预测后的LP分量的数据,获得HP分量的预测取向的处理单元, 以及选择单元,基于由处理单元获得的HP分量的预测方向,选择第一和第二表中的一个。
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公开(公告)号:US20100278266A1
公开(公告)日:2010-11-04
申请号:US12753356
申请日:2010-04-02
申请人: Hideki Daian
发明人: Hideki Daian
IPC分类号: H04N7/32
CPC分类号: H04N19/11 , H04N19/147 , H04N19/176 , H04N19/192 , H04N19/593
摘要: Search is performed on Intra 16 to obtain a prediction mode leading to a minimum cost, and the minimum cost in Intra 16 and a corresponding prediction mode are stored. Search is performed on Intra 8 to obtain a prediction mode leading to a minimum cost, and then a relationship of magnitude between the stored minimum cost in Intra 16 and the minimum cost in Intra 8 is judged. After that, the minimum cost in Intra 8 and a corresponding prediction mode are stored, and search is performed on Intra 4 to obtain a prediction mode leading to a minimum cost. A relationship of magnitude between cost_intra and the minimum cost in Intra 4 is judged, and Intra 4 is determined as an optimum prediction mode in a case where Intra 4 is smaller.
摘要翻译: 在Intra16上执行搜索以获得导致最小成本的预测模式,并且存储Intra16中的最小成本和相应的预测模式。 在Intra 8上执行搜索以获得导致最小成本的预测模式,然后判断Intra16中存储的最小成本与Intra 8中的最小成本之间的大小之间的关系。 之后,存储Intra 8中的最小成本和对应的预测模式,并且在Intra4上执行搜索以获得导致最小成本的预测模式。 判断Intra 4中cost_intra与最小成本之间的关系,在Intra 4较小的情况下,Intra 4被确定为最佳预测模式。
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公开(公告)号:US20110268366A1
公开(公告)日:2011-11-03
申请号:US13142340
申请日:2009-03-24
申请人: Hideki Daian
发明人: Hideki Daian
IPC分类号: G06K9/46
CPC分类号: H04N19/577 , H04N19/117 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/40 , H04N19/423 , H04N19/61 , H04N19/80 , H04N19/86
摘要: It is an object of the present invention to provide a technique for eliminating the unnaturalness in a generated moving image while achieving high speed processing in an image processing apparatus comprising a deblocking filter. A transcoder (1) comprises an MPEG2 decoder (2), a strength evaluation circuit (3), and an H.264 encoder (4). The strength evaluation circuit (3) calculates a filter strength parameter (104) on the basis of an image feature value parameter (103) acquired by the MPEG2 decoder (2). The H.264 encoder (4) applies a deblocking filter to an input image on the basis of the filter strength parameter (104) in a coding process. The H.264 encoder (4) codes a picture while the strength evaluation circuit (3) performs a filter strength calculation process on a subsequent picture concurrently.
摘要翻译: 本发明的目的是提供一种消除所生成的运动图像中的不自然的技术,同时在包括解块滤波器的图像处理装置中实现高速处理。 代码转换器(1)包括MPEG2解码器(2),强度评估电路(3)和H.264编码器(4)。 强度评估电路(3)基于由MPEG2解码器(2)获取的图像特征量参数(103)来计算滤波强度参数(104)。 H.264编码器(4)在编码处理中基于滤波器强度参数(104)向输入图像应用去块滤波器。 H.264编码器(4)在强度评估电路(3)同时对后续图像执行滤波强度计算处理时对图像进行编码。
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公开(公告)号:US08818123B2
公开(公告)日:2014-08-26
申请号:US13142340
申请日:2009-03-24
申请人: Hideki Daian
发明人: Hideki Daian
CPC分类号: H04N19/577 , H04N19/117 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/40 , H04N19/423 , H04N19/61 , H04N19/80 , H04N19/86
摘要: A technique for eliminating the unnaturalness in a generated moving image while achieving high speed processing in an image processing apparatus which includes a deblocking filter is provided. A transcoder includes an MPEG2 decoder, a strength evaluation circuit, and an H.264 encoder. The strength evaluation circuit calculates a filter strength parameter on the basis of an image feature value parameter acquired by the MPEG2 decoder. The H.264 encoder applies a deblocking filter to an input image on the basis of the filter strength parameter in a coding process. The H.264 encoder codes a picture while the strength evaluation circuit performs a filter strength calculation process on a subsequent picture concurrently.
摘要翻译: 提供一种在包括解块滤波器的图像处理装置中实现高速处理的同时消除生成的运动图像中的不自然的技术。 代码转换器包括MPEG2解码器,强度评估电路和H.264编码器。 强度评估电路根据由MPEG2解码器获取的图像特征量参数来计算滤波强度参数。 H.264编码器在编码处理中基于滤波器强度参数将输入图像应用去块滤波器。 强制评估电路对后续图像同时进行滤波强度计算处理时,H.264编码器对图像进行编码。
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