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。

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

CPC分类号： H04N19/42 ,  H04N19/60 ,  H04N19/93

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。

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。

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

IPC分类号： G06K9/36 ,  G06K9/46

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。

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。

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。

公开(公告)号：US20100086223A1

公开(公告)日：2010-04-08

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 ,  G06K9/40

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。

公开(公告)号：US08494293B2

公开(公告)日：2013-07-23

申请号：US13153913

申请日：2011-06-06

申请人： Yusuke Mizuno ,  Yujiro Tani

发明人： Yusuke Mizuno ,  Yujiro Tani

IPC分类号： G06K9/36

CPC分类号： H04N19/436 ,  H04N19/60

摘要： The image processor 1 includes a frequency transform unit 12, an encoding unit 15, and a memory 4. The encoding unit 15 includes a DC processing unit 31 that generates a direct-current stream, an LP processing unit 32 that generates a low-frequency stream, an HP processing unit 33 that generates an upper high-frequency stream and a lower high-frequency stream, and an output unit 34 having output ports 41 to 44 to output the direct-current stream, the low-frequency stream, the upper high-frequency stream, and the lower high-frequency stream to the memory 4.

摘要翻译： 图像处理器1包括频率变换单元12，编码单元15和存储器4.编码单元15包括生成直流流的DC处理单元31，生成低频的LP处理单元32 流，产生上高频流和下高频流的HP处理单元33以及具有输出端口41至44以输出直流流，低频流，上位流的输出单元34的输出单元34 高频流，低频流到存储器4。

公开(公告)号：US08571336B2

公开(公告)日：2013-10-29

申请号：US12402817

申请日：2009-03-12

申请人： Atsushi Uchiyama ,  Yujiro Tani ,  Hiromu Hasegawa

发明人： Atsushi Uchiyama ,  Yujiro Tani ,  Hiromu Hasegawa

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/85 ,  H04N19/117 ,  H04N19/186

摘要： An image processor includes an encoder and a decoder. The encoder includes a frequency transform unit, a pre-filter, and a color conversion unit that converts a pixel signal of a first color space inputted from outside into a pixel signal of a second color space including a luminance signal and chrominance signals. The decoder includes a frequency inverse transform unit, a post-filter, and a color inverse conversion unit that inversely converts a pixel signal of the second color space into a pixel signal of the first color space. The pre-filter performs prefiltering on one or plural specific signals among the luminance and chrominance signals. The post-filter does not perform postfiltering on the above specific signals.

摘要翻译： 图像处理器包括编码器和解码器。 编码器包括频率变换单元，预滤波器和颜色转换单元，其将从外部输入的第一颜色空间的像素信号转换为包括亮度信号和色度信号的第二颜色空间的像素信号。 解码器包括频率逆变换单元，后置滤波器和颜色逆变换单元，其将第二颜色空间的像素信号反向转换为第一颜色空间的像素信号。 预滤波器对亮度和色度信号中的一个或多个特定信号执行预滤波。 后置滤波器不对上述特定信号执行后置滤波。

公开(公告)号：US08315471B2

公开(公告)日：2012-11-20

申请号：US12403041

申请日：2009-03-12

申请人： Atsushi Uchiyama ,  Yujiro Tani ,  Hiromu Hasegawa

发明人： Atsushi Uchiyama ,  Yujiro Tani ,  Hiromu Hasegawa

IPC分类号： G06K9/00

CPC分类号： G06K9/38 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10024 ,  H04N19/126 ,  H04N19/186 ,  H04N19/60 ,  H04N19/85

摘要： An image processor includes a frequency transform unit performing frequency transform independently on a luminance signal and plural chrominance signals and outputting an item of frequency data of the luminance signal and plural items of frequency data of the chrominance signals, and a quantization unit performing quantization independently on plural items of frequency data inputted from the frequency transform unit. The quantization unit performs quantization on one or plural specific items of frequency data corresponding to a signal with noise among the frequency data of the luminance signal and the chrominance signals, employing a quantization coefficient having a value greater than “1”, and performs quantization on frequency data apart from the specific items of frequency data, employing a quantization coefficient having a value “1”.

摘要翻译： 图像处理器包括：频率变换单元，对亮度信号和多个色度信号进行独立的频率变换，并输出亮度信号的频率数据项和色度信号的多个频率数据项;以及量化单元，对 从频率变换单元输入的多个频率数据。 量化单元使用具有大于1的值的量化系数，对亮度信号和色度信号的频率数据中的具有噪声的信号对应的一个或多个特定项目的频率数据进行量化，并对频率数据进行量化 除了频率数据的特定项目之外，采用具有值1的量化系数。