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

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：US07551214B2

公开(公告)日：2009-06-23

申请号：US11275009

申请日：2005-12-01

申请人： Hiromu Hasegawa

发明人： Hiromu Hasegawa

IPC分类号： H04N3/14 ,  H04N5/335 ,  H04N9/04 ,  H04N9/083 ,  G06K9/00

CPC分类号： H04N9/07 ,  G06T3/4015 ,  H04N9/045

摘要： Correlation values in the vertical direction, horizontal direction and two diagonal directions are obtained in a pixel signal of RGB Bayer pattern. The correlation values are calculated using G signals. Between a first pair of the vertical and horizontal directions and a second pair of the two diagonal directions, one pair having a greater correlation difference is selected. Then, a direction having a stronger correlation is selected in the selected pair having a greater correlation difference, and pixel interpolation is performed in the selected direction. Alternatively, pixel interpolation is performed following assignment of weights in two directions of the selected pair having a greater correlation difference in accordance with the proportion of their correlations.

摘要翻译： 在RGB拜耳图案的像素信号中获得垂直方向，水平方向和两个对角线方向上的相关值。 使用G信号计算相关值。 在第一对垂直和水平方向之间以及两个对角方向的第二对之间，选择一对具有较大的相关差。 然后，在具有较大相关差的所选择的对中选择具有较强相关性的方向，并且在所选择的方向上执行像素内插。 或者，在根据其相关比例具有较大的相关差异的所选对中的两个方向上的权重分配之后执行像素内插。

公开(公告)号：US20070280539A1

公开(公告)日：2007-12-06

申请号：US11577453

申请日：2005-10-04

申请人： Hiromu Hasegawa ,  Yusuke Nara

发明人： Hiromu Hasegawa ,  Yusuke Nara

IPC分类号： G06K9/46

CPC分类号： H04N9/045 ,  H04N2209/046

摘要： The present invention relates to an interpolation method and a filtering method which utilize a correlation between pixel signals, and it is an object of the present invention to provide a sharp and high-quality image even if an error occurs in correlation degree judgment. To accomplish the above-mentioned object, an imaging device 10 is of a single-chip type, and includes a RGB Bayer pattern color filter 11, and an image is processed in a manner to be described below. Pixel signals outputted from the imaging device 10 are inputted through a signal processing part 20 to an image processing part 30. A correlation judgment part 31 judges a correlation between the pixel signals, and an interpolation processing part 32 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 34 are determined based on the correlation result, and a filtering process is performed on the pixel signals subjected to the pixel interpolation. The filter factors are determined so as to assist the pixel interpolation process best.

摘要翻译： 本发明涉及利用像素信号之间的相关性的内插方法和滤波方法，并且即使在相关度判断中发生错误，本发明的目的也是提供清晰和高质量的图像。 为了实现上述目的，成像装置10是单芯片型的，并且包括RGB拜耳图案滤色器11，并且以下面将要描述的方式处理图像。 从摄像装置10输出的像素信号通过信号处理部20输入到图像处理部30。 相关判断部31判断像素信号之间的相关性，内插处理部32基于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34的滤波器因子，并且对经过像素内插的像素信号执行滤波处理。 确定滤波因子，以便最佳地辅助像素插值处理。

公开(公告)号：US20070126885A1

公开(公告)日：2007-06-07

申请号：US11275009

申请日：2005-12-01

申请人： Hiromu Hasegawa

发明人： Hiromu Hasegawa

IPC分类号： H04N5/228

CPC分类号： H04N9/07 ,  G06T3/4015 ,  H04N9/045

摘要： Correlation values in the vertical direction, horizontal direction and two diagonal directions are obtained in a pixel signal of RGB Bayer pattern. The correlation values are calculated using G signals. Between a first pair of the vertical and horizontal directions and a second pair of the two diagonal directions, one pair having a greater correlation difference is selected. Then, a direction having a stronger correlation is selected in the selected pair having a greater correlation difference, and pixel interpolation is performed in the selected direction. Alternatively, pixel interpolation is performed following assignment of weights in two directions of the selected pair having a greater correlation difference in accordance with the proportion of their correlations.

摘要翻译： 在RGB拜耳图案的像素信号中获得垂直方向，水平方向和两个对角线方向上的相关值。 使用G信号计算相关值。 在第一对垂直和水平方向之间以及两个对角方向的第二对之间，选择一对具有较大的相关差。 然后，在具有较大相关差的所选择的对中选择具有较强相关性的方向，并且在所选择的方向上执行像素内插。 或者，在根据其相关比例具有较大的相关差异的所选对中的两个方向上的权重分配之后执行像素内插。

公开(公告)号：US06704448B1

公开(公告)日：2004-03-09

申请号：US09572870

申请日：2000-05-18

申请人： Hiromu Hasegawa

发明人： Hiromu Hasegawa

IPC分类号： G06K934

CPC分类号： G06K9/00234

摘要： A region extraction device includes a segmentation unit for dividing an input image into a plurality of regions, a pixel number counting unit for determining the ratio of pixels of a predetermined value to all pixels of each of the plurality of regions, and a region extracting unit for extracting a region in which the ratio determined by the pixel number counting unit exceeds a first value. Among the plurality of regions into which the input image is divided, a region is extracted in which the ratio determined by the pixel number counting unit exceeds the first value, so that a specific region can be extracted accurately even if the values of pixels in the specific region to be extracted are scattered in a wide range.

摘要翻译： 区域提取装置包括用于将输入图像分割成多个区域的分割单元，用于确定预定值的像素与多个区域中的每一个的全部像素的比率的像素数计数单元，以及区域提取单元 用于提取其中由像素数计数单元确定的比率超过第一值的区域。 在分割输入图像的多个区域中，提取区域，其中由像素数计数单元确定的比率超过第一值，使得即使在像素数计数单元中的像素值可以精确地提取特定区域 要提取的特定区域在宽范围内散布。

公开(公告)号：US20140161349A1

公开(公告)日：2014-06-12

申请号：US14232803

申请日：2012-07-06

申请人： Hiromu Hasegawa

发明人： Hiromu Hasegawa

IPC分类号： G06K9/46 ,  G06T11/00

CPC分类号： G06K9/4633 ,  G06T7/13 ,  G06T11/001 ,  G06T2207/20061

摘要： To detect a straight line using the Hough transform taking into consideration not only the number of points but also other properties of the straight line, the Hough transform unit performs a Hough transform on contour-enhanced binary image data. The Hough table stores a count after the Hough transform. The adjustment unit adjusts the count. The straight line detection unit detects a straight line based on the adjusted count. Additionally, to detect a straight line, independent of its direction or location in the image, for each straight line in the binary image data, the straight line calculation unit determines the intersections where that straight line cuts up the binary image data to calculate the intersection distance. The normalization unit divides the count stored in the Hough table by the intersection distance to normalize the count. The straight line detection unit detects a straight line based on the normalized count.

摘要翻译： 为了使用霍夫变换来检测直线，不仅考虑点的数量，而且考虑到直线的其他属性，霍夫变换单元对轮廓增强的二进制图像数据执行霍夫变换。 霍夫表在霍夫变换后存储一个计数。 调整单元调整计数。 直线检测单元基于经调整的计数检测直线。 另外，为了检测独立于图像中的方向或位置的直线，对于二进制图像数据中的每条直线，直线计算单元确定该直线切割二进制图像数据以计算交点的交点 距离。 归一化单元将存储在霍夫表中的计数除以交叉距离以使计数正常化。 直线检测单元基于归一化计数检测直线。

公开(公告)号：US08515210B2

公开(公告)日：2013-08-20

申请号：US13176430

申请日：2011-07-05

申请人： Hiromu Hasegawa ,  Yusuke Nara

发明人： Hiromu Hasegawa ,  Yusuke Nara

IPC分类号： G06K9/20

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。

公开(公告)号：US20120287990A1

公开(公告)日：2012-11-15

申请号：US13522122

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： H04N7/12

CPC分类号： H04N19/174 ,  H04N19/124 ,  H04N19/147 ,  H04N19/149 ,  H04N19/196 ,  H04N19/61

摘要： An image processor includes an encoder that performs encoding including quantization on an image signal and a controller that controls a quantization parameter for quantization. The controller determines a quantization parameter of a currently target macroblock as an increase or decrease from a reference value, and determines the increase or decrease based on a difference between a target amount of code for a predetermined number of macroblocks fewer than a total number of macroblocks within one frame and a generated amount of code of the predetermined number of macroblocks processed immediately before. The controller can further determine the increase or decrease, based on pixel information of the currently target macroblock such as an activity evaluation value.

摘要翻译： 图像处理器包括编码器，该编码器执行包括对图像信号的量化的编码以及控制量化量化参数的控制器。 控制器根据参考值确定当前目标宏块的量化参数为增加或减小，并且基于小于总宏块数的预定数量的宏块的目标代码量之间的差确定增加或减小 并且在紧接着之前处理预定数量的宏块的生成的代码量。 控制器可以基于诸如活动评估值的当前目标宏块的像素信息来进一步确定增加或减少。

公开(公告)号：US08041110B2

公开(公告)日：2011-10-18

申请号：US12269354

申请日：2008-11-12

申请人： Hiromu Hasegawa

发明人： Hiromu Hasegawa

IPC分类号： G06K9/00

CPC分类号： H04N9/045 ,  G06T3/4007 ,  G06T3/4015 ,  H04N2209/046

摘要： An image processing circuit inputs pixels of an RGB Bayer array therein. A chroma value calculation circuit calculates a chroma factor (KL) for evaluating the chroma of a surrounding area of a specified pixel. A correlation value calculation circuit calculates correlation values for gray image and color image. If the chroma factor (KL) is larger than a threshold value (TH1), a correlation judgment method for color image and a pixel interpolation method for color image are selected, if the chroma factor (KL) is not larger than a threshold value (TH1) and larger than a threshold value (TH2), a correlation judgment method using a correlation value obtained by overall judgment on the correlation values for gray image and color image and a pixel interpolation method for color image are selected, and if the chroma factor (KL) is not larger than a threshold value (TH2), a correlation judgment method for gray image and a pixel interpolation method for gray image are selected.

摘要翻译： 图像处理电路在其中输入RGB拜耳阵列的像素。 色度值计算电路计算用于评估指定像素的周围区域的色度的色度因子（KL）。 相关值计算电路计算灰度图像和彩色图像的相关值。 如果色度因子（KL）大于阈值（TH1），则选择用于彩色图像的相关判断方法和彩色图像的像素插值方法，如果色度因子（KL）不大于阈值（ TH1）并且大于阈值（TH2）时，选择使用通过对灰度图像和彩色图像的相关值的总体判断获得的相关值的相关判断方法和用于彩色图像的像素插值方法，并且如果色度因子 （KL）不大于阈值（TH2）时，选择灰度图像的相关判断方法和灰度图像的像素插值方法。

公开(公告)号：US07714751B2

公开(公告)日：2010-05-11

申请号：US12144098

申请日：2008-06-23

申请人： Hiromu Hasegawa ,  Miyuki Yanagida

发明人： Hiromu Hasegawa ,  Miyuki Yanagida

IPC分类号： H03M7/00

CPC分类号： H04N19/40 ,  H04N19/124 ,  H04N19/149 ,  H04N19/61

摘要： A transcoder calculates a reference conversion factor on the basis of a ratio between a total target bit rate of a whole second stream and an total input bit rate of a whole first stream and calculates a coefficient of variation from the total target bit rate of the whole second stream and an average output bit rate of a converted second stream in the N period. Next, a quantization step conversion factor in the next (N+1) period is calculated by adding the coefficient of variation to the reference conversion factor. Then, a quantization step value of a second stream in the (N+1) period is calculated by multiplying a quantization step value of a first stream in the (N+1) period by the quantization step conversion factor.

摘要翻译： 代码转换器基于整个第二流的总目标比特率与整个第一流的总输入比特率之间的比率来计算参考转换因子，并且从整体的总目标比特率计算变异系数 第二流和在N个周期中转换的第二流的平均输出比特率。 接下来，通过将变化系数与参考转换因子相加来计算下一个（N + 1）周期中的量化步长转换因子。 然后，通过将第（N + 1）个周期中的第一流的量化步长值乘以量化步长转换因子来计算第（N + 1）周期中的第二流的量化步长值。