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51. 发明申请

US20130028534A1 IMAGE PROCESSOR 有权
标题翻译：图像处理器
公开(公告)号：US20130028534A1
公开(公告)日：2013-01-31
申请号：US13638299
申请日：2010-11-29
申请人： Toshimitsu Tatsuka , Hiromu Hasegawa , Takeaki Komuro , Masato Yamada
发明人： Toshimitsu Tatsuka , Hiromu Hasegawa , Takeaki Komuro , Masato Yamada
IPC分类号： G06K9/00
CPC分类号： H04N19/146 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/176
摘要： An image processor that achieves reduction in delay amount, in comparison with code amount control GOP by GOP or frame by frame, is obtained. The controller includes a first processing unit that obtains a generated amount of code used for a first predetermined number of immediately preceding macroblocks, a second processing unit that obtains an allowable amount of code available for a third predetermined number of immediately subsequent macroblocks including a currently target macroblock, based on a target amount of code for not more than a second predetermined number of macroblocks less than a total number of macroblocks included in one frame, and the generated amount of code obtained by the first processing unit, a third processing unit that obtains an expected amount of code expected to be used for the third predetermined number of macroblocks, and a fourth processing unit that sets a quantization parameter of a currently target macroblock, based on the allowable amount of code obtained by the second processing unit and the expected amount of code obtained by the third processing unit.
摘要翻译：获得与GOP或逐帧的代码量控制GOP相比实现延迟量减小的图像处理器。控制器包括：第一处理单元，其获得用于第一预定数量的紧邻的前一个宏块的生成的代码量;第二处理单元，其获得可用于第三预定数量的紧随其后的宏块的可允许的代码量，包括当前目标宏块，基于小于包括在一帧中的宏块的总数的第二预定数量的宏块的代码的目标量以及由所述第一处理单元获得的所生成的代码量;第三处理单元，其获得期望用于第三预定数量的宏块的预期代码量;以及第四处理单元，其基于由第二处理单元获得的可允许的代码量和预期量来设置当前目标宏块的量化参数的第三处理单元获得的代码。

52. 发明申请

US20120294361A1 IMAGE CODING APPARATUS 审中-公开
标题翻译：图像编码设备
公开(公告)号：US20120294361A1
公开(公告)日：2012-11-22
申请号：US13575373
申请日：2011-01-18
申请人： Hiromu Hasegawa , Toshimitsu Tatsuka , Takeaki Komuro
发明人： Hiromu Hasegawa , Toshimitsu Tatsuka , Takeaki Komuro
IPC分类号： H04N7/32
CPC分类号： H04N19/176 , H04N19/107 , H04N19/172 , H04N19/61
摘要： An image coding technique for suppressing degradation in image quality, in which the time and space where intra macroblocks appear are dispersed. A block count determination part determines the number of intra macroblocks to be allocated in each frame. A position determination part arranges the intra macroblocks at random positions in each frame. A coding part performs coding on the basis of the number of intra macroblocks to be allocated in a time direction, which is determined by the block count determination part, and the arrangement of the intra macroblocks in a spatial direction, which is determined by the position determination part, to thereby output compressed image data.
摘要翻译：用于抑制图像质量劣化的图像编码技术，其中内部宏块出现的时间和空间被分散。块计数确定部分确定在每个帧中要分配的帧内宏块的数量。位置确定部件将帧内宏块排列在每帧中的随机位置。编码部分基于由块计数确定部分确定的时间方向上要分配的帧内宏块的数量以及由位置确定的空间方向上的帧内宏块的布置来执行编码确定部分，从而输出压缩图像数据。

53. 发明授权

US08315471B2 Image processor 有权
标题翻译：图像处理器
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。

54. 发明授权

US08107746B2 Image processor 有权
标题翻译：图像处理器
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。

55. 发明申请

US20110075731A1 TRANSCODER 有权
公开(公告)号：US20110075731A1
公开(公告)日：2011-03-31
申请号：US12995826
申请日：2009-02-26
申请人： Hiromu Hasegawa
发明人： Hiromu Hasegawa
IPC分类号： H04N7/26
CPC分类号： H04N19/124 , H04N19/146 , H04N19/154 , H04N19/172 , H04N19/40 , H04N19/61
摘要： A transcoder that controls the amount of generated codes of an output stream toward a target bit rate without degradation of image quality. The transcoder decodes a first stream and encodes the decoded image again to thereby output a second stream. The transcoder calculates a distortion evaluation value from the image obtained by decoding the first stream and an image obtained by decoding the second stream. Assuming that a ratio between the distortion evaluation value and a total target distortion evaluation value is determined as a target distortion ratio, a target setting bit rate of a second stream in the period can be obtained by multiplying a total target bit rate of the second stream by the target distortion ratio. Alternatively, the target setting bit rate can be obtained by adjusting the target distortion ratio with an appropriate function and adding the target distortion ratio to the total target bit rate of the second stream.
摘要翻译：代码转换器，其将输出流的生成代码的量控制到目标比特率，而不降低图像质量。代码转换器对第一流进行解码并再次对解码图像进行编码，从而输出第二流。代码转换器从通过解码第一流获得的图像和通过解码第二流获得的图像来计算失真评估值。假设失真评估值和总目标失真评估值之间的比率被确定为目标失真比率，则可以通过将第二流的总目标比特率相乘来获得该周期中的第二流的目标设置比特率通过目标失真比。或者，可以通过利用适当的功能调整目标失真比并将目标失真比与第二流的总目标比特率相加来获得目标设定比特率。

56. 发明授权

US07894110B2 Pixel interpolation method and image distinction method 有权
标题翻译：像素插值法和图像辨别方法
公开(公告)号：US07894110B2
公开(公告)日：2011-02-22
申请号：US11288118
申请日：2005-11-29
申请人： Hiromu Hasegawa
发明人： Hiromu Hasegawa
IPC分类号： G03F3/08 , H04N1/46 , G06K15/00
CPC分类号： G06T3/4015 , H04N2101/00
摘要： An image processing circuit inputs pixels arranged in RGB Bayer pattern. A chroma value calculation circuit calculates a chroma coefficient for evaluating chroma of a peripheral region of a target pixel. A correlation value calculation circuit calculates a correlation value for gray image and a correlation value for color image. When the chroma coefficient is higher than a first threshold value, a correlation judging method for color image and a pixel interpolation method for color image are selected. When the chroma coefficient is not higher than the first threshold value and higher than a second threshold value, a correlation judging method for gray image and the pixel interpolation method for color image are selected. When the chroma coefficient is not higher than the second threshold value, the correlation judging method for gray image and a pixel interpolation method for gray image are selected. Interpolation is executed in a pixel interpolation circuit.
摘要翻译：图像处理电路输入以RGB拜耳图案排列的像素。色度值计算电路计算用于评估目标像素的周边区域的色度的色度系数。相关值计算电路计算灰度图像的相关值和彩色图像的相关值。当色度系数高于第一阈值时，选择彩色图像的相关判断方法和彩色图像的像素插值方法。当色度系数不高于第一阈值且高于第二阈值时，选择用于灰度图像的相关判断方法和彩色图像的像素插值方法。当色度系数不高于第二阈值时，选择用于灰度图像的相关判断方法和用于灰度图像的像素插值方法。插值在像素插值电路中执行。

57. 发明申请

US20100111430A1 IMAGE PROCESSOR 有权
标题翻译：图像处理器
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。

58. 发明申请

US20100086223A1 IMAGE PROCESSOR 有权
标题翻译：图像处理器
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。

59. 发明申请

US20090238447A1 IMAGE PROCESSOR 有权
标题翻译：图像处理器
公开(公告)号：US20090238447A1
公开(公告)日：2009-09-24
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： G06K9/36 , 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”的量化系数，在亮度信号和色度信号的频率数据中对应于具有噪声的信号的一个或多个特定项目的频率数据上执行量化，并对使用具有值“1”的量化系数与频率数据的特定项目分开的频率数据。

60. 发明授权

US07570288B2 Image processor 有权
标题翻译：图像处理器
公开(公告)号：US07570288B2
公开(公告)日：2009-08-04
申请号：US11277699
申请日：2006-03-28
申请人： Hiromu Hasegawa , Munehiro Mori , Nobuhiro Minami
发明人： Hiromu Hasegawa , Munehiro Mori , Nobuhiro Minami
IPC分类号： H04N5/217
CPC分类号： H04N9/045 , H04N9/646 , H04N2209/046
摘要： A pixel signal of Bayer pattern output from an imaging device is subjected to interpolation in a pixel interpolation circuit, and converted into a YCbCr signal in a color space conversion circuit. A chroma value calculation circuit calculates a chroma value based on the pixel signal output from the imaging device. A look-up table converts the chroma value into a suppression signal. More specifically, when the chroma value is lower than a threshold value, the look-up table outputs a value lower than 1 as the suppression signal. The suppression signal is corrected in another look-up table, and then, works on Cr and Cb signals in multipliers. A signal in a low-chroma region is thereby suppressed.
摘要翻译：从成像装置输出的拜耳图案的像素信号在像素插值电路中进行插值，并在色空间转换电路中转换为YCbCr信号。色度值计算电路根据从成像装置输出的像素信号来计算色度值。查找表将色度值转换为抑制信号。更具体地，当色度值低于阈值时，查找表输出低于1的值作为抑制信号。抑制信号在另一个查找表中被校正，然后在乘法器中对Cr和Cb信号进行工作。由此抑制低色度区域中的信号。

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