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公开(公告)号：US09426474B2
公开(公告)日：2016-08-23
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 , H04N19/124 , H04N19/172 , H04N19/61 , H04N19/146 , H04N19/154 , H04N19/40
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。
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2.发明授权Transcoder for converting a first stream to a second stream based on a period conversion factor 有权转码器，用于基于周期转换因子将第一流转换为第二流公开(公告)号：US09071837B2
公开(公告)日：2015-06-30
申请号：US13401198
申请日：2012-02-21
申请人： Hiromu Hasegawa , Nobuyuki Takasu , Makoto Saito
发明人： Hiromu Hasegawa , Nobuyuki Takasu , Makoto Saito
IPC分类号： H04N19/114 , H04N19/169 , H04N19/15 , H04N19/115 , H04N19/61 , H04N19/126 , H04N19/157 , H04N19/162 , H04N19/177 , H04N19/40
CPC分类号： H04N19/146 , H04N19/114 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/15 , H04N19/157 , H04N19/162 , H04N19/169 , H04N19/177 , H04N19/40 , H04N19/61
摘要： If the number of frames in a GOP of an input stream is not less than 15, the GOP is determined as a control unit time. If the number of frames in the GOP is less than 15, the following GOP is connected thereto until the number of frames becomes not less than 15 and the connected GOPs are determined as a control unit time. After correcting the control unit time, the average input bit rate Sn in each control unit time is obtained, and by using information on the input stream including the average input bit rate Sn, a quantization step value of an output stream is calculated.
摘要翻译： 如果输入流的GOP中的帧数不小于15，则将GOP确定为控制单元时间。 如果GOP中的帧数小于15，则连接到下一个GOP，直到帧的数量变得不小于15，并且所连接的GOP被确定为控制单元时间。 在校正控制单元时间之后，获得每个控制单元时间内的平均输入比特率Sn，并且通过使用包括平均输入比特率Sn的输入流的信息，计算输出流的量化步长值。
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公开(公告)号：US20140193096A1
公开(公告)日：2014-07-10
申请号：US14240912
申请日：2012-07-20
申请人： Hiromu Hasegawa
发明人： Hiromu Hasegawa
IPC分类号： G06T7/00
CPC分类号： G06K9/4633 , G06K9/4652 , G06T7/13 , G06T7/168 , G06T2207/10024 , G06T2207/20061
摘要： An apparatus and method to detect a line segment or arc using Hough transform. A Hough transform unit performs contour extraction on brightness image data to generate contour image data, with pixels having a pixel value of 0 to 255, performs the Hough transform on points in the contour image data, and counts additional values represented by pixel values of points in the contour image data in a Hough table. The Hough transform unit performs contour extraction on first to third component data to generate first to third contour data with pixels having a pixel value of 0 to 255, performs the Hough transform on points in the first to third contour data, and counts additional values represented by pixel values of points in the first to third contour data in the Hough table. The detection unit comprehensively evaluates the counts to detect a line segment or arc.
摘要翻译： 使用霍夫变换检测线段或弧的装置和方法。 霍夫变换单元对亮度图像数据执行轮廓提取，以生成具有像素值为0至255的像素的轮廓图像数据，对轮廓图像数据中的点执行霍夫变换，并对由点的像素值表示的附加值进行计数 在Hough表中的轮廓图像数据中。 霍夫变换单元在第一至第三分量数据上执行轮廓提取，以生成具有像素值为0至255的像素的第一至第三轮廓数据，对第一至第三轮廓数据中的点执行霍夫变换，并计数表示的附加值 在霍夫表中第一到第三轮廓数据中的点的逐像素值。 检测单元综合评估检测线段或弧线的计数。
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公开(公告)号：US08699807B2
公开(公告)日：2014-04-15
申请号：US13577488
申请日：2011-01-06
CPC分类号： H04N19/107 , H04N19/14 , H04N19/176
摘要： An image coding apparatus calculates the activity of each macroblock. All the macroblocks of block lines are set as intra-candidate macroblocks (intra-candidate MBs) which are candidates for intra coding. Every other macroblock is set as an intra-candidate MB in block lines. One of the intra-candidate MBs in each block line, which has the minimum activity, is determined as an intra macroblock of a frame. The macroblock determined as the intra MB is changed from the intra-candidate MB to an intra-forbidden macroblock. After changing the setting of the intra-candidate MBs, intra macroblocks are determined for a frame inputted subsequent to the frame.
摘要翻译： 图像编码装置计算每个宏块的活动。 块线的所有宏块被设置为作为帧内编码候选的候选内宏块（候选内MB）。 每个其他宏块以块线设置为候选内MB。 具有最小活动度的每个块行中的候选MB之一被确定为帧的帧内宏块。 确定为帧内MB的宏块从帧内候选MB改变为禁止内宏块。 在改变帧内候选MB的设置之后，为帧之后输入的帧确定帧内宏块。
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5.发明授权Image enlargement method that uses information acquired in a pixel interpolation process 有权使用在像素内插处理中获取的信息的图像放大方法公开(公告)号：US08335372B2
公开(公告)日：2012-12-18
申请号：US12578927
申请日：2009-10-14
申请人： Hiromu Hasegawa
发明人： Hiromu Hasegawa
CPC分类号： G06T3/4015 , G06T3/4007
摘要： A correlation value calculation circuit calculates respective correlation values of each pixel for color image or for gray image in four directions. A selection circuit determines respective correlation values (Cv, Ch, CdA and CdB) in the four directions on the basis of a chroma evaluation value. A first correlation judgment circuit determines a correlation direction of a specified pixel from the correlation values (Cv, Ch, CdA and CdB). A first interpolation circuit performs color interpolation on the basis of the determined correlation direction. A color-interpolated image is enlarged by an enlargement circuit. A correlation direction interpolation circuit performs enlargement and interpolation of the correlation direction determined by the first correlation judgment circuit. A filter performs a filtering process for each of pixels of the enlarged image by using the interpolated correlation direction for enlargement.
摘要翻译： 相关值计算电路在四个方向上计算彩色图像或灰度图像的每个像素的相关值。 选择电路基于色度评估值来确定四个方向上的各个相关值（Cv，Ch，CdA和CdB）。 第一相关判断电路根据相关值（Cv，Ch，CdA和CdB）确定指定像素的相关方向。 第一插值电路基于确定的相关方向执行颜色插值。 彩色插值图像由放大电路放大。 相关方向插补电路对由第一相关判断电路确定的相关方向进行放大和插值。 滤波器通过使用用于放大的内插相关方向对放大图像的每个像素执行滤波处理。
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公开(公告)号：US20120308151A1
公开(公告)日：2012-12-06
申请号：US13577488
申请日：2011-01-06
IPC分类号： G06K9/36
CPC分类号： H04N19/107 , H04N19/14 , H04N19/176
摘要： An image coding apparatus calculates the activity of each macroblock. All the macroblocks of block lines are set as intra-candidate macroblocks (intra-candidate MBs) which are candidates for intra coding. Every other macroblock is set as an intra-candidate MB in block lines. One of the intra-candidate MBs in each block line, which has the minimum activity, is determined as an intra macroblock of a frame. The macroblock determined as the intra MB is changed from the intra-candidate MB to an intra-forbidden macroblock. After changing the setting of the intra-candidate MBs, intra macroblocks are determined for a frame inputted subsequent to the frame.
摘要翻译： 图像编码装置计算每个宏块的活动。 块线的所有宏块被设置为作为帧内编码候选的候选内宏块（候选内MB）。 每个其他宏块以块线设置为候选内MB。 具有最小活动度的每个块行中的候选MB之一被确定为帧的帧内宏块。 确定为帧内MB的宏块从帧内候选MB改变为禁止内宏块。 在改变帧内候选MB的设置之后，为帧之后输入的帧确定帧内宏块。
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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：US20110267509A1
公开(公告)日：2011-11-03
申请号：US13176430
申请日：2011-07-05
申请人： Hiromu HASEGAWA , Yusuke Nara
发明人： Hiromu HASEGAWA , Yusuke Nara
CPC分类号： H04N9/045 , H04N2209/046
摘要： An imaging device made of a single-chip type including a RGB Bayer pattern color filter is where pixel signals outputted from the imaging device are inputted through a signal processing part to an image processing part. A correlation judgment part judges a correlation between the pixel signals, and an interpolation processing part performs a pixel interpolation process based on a correlation result. Thus, each pixel signal becomes a perfect signal having all R, G and B color components. Filter factors for a filter are determined based on the correlation result, and a filtering process is performed on the pixel signals subjected to the pixel interpolation.
摘要翻译： 由包括RGB拜耳图案彩色滤光片的单片式制成的成像装置是从成像装置输出的像素信号通过信号处理部分输入到图像处理部分。 相关判断部判断像素信号之间的相关性，内插处理部根据相关结果进行像素内插处理。 因此，每个像素信号变成具有所有R，G和B颜色分量的完美信号。 基于相关结果确定滤波器的滤波因子，并且对经过像素插值的像素信号执行滤波处理。
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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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