公开(公告)号：US06343146B1

公开(公告)日：2002-01-29

申请号：US09027590

申请日：1998-02-24

申请人： Takao Tsuruoka ,  Taketo Tsukioka

发明人： Takao Tsuruoka ,  Taketo Tsukioka

IPC分类号： G06K900

CPC分类号： H04N9/045 ,  G06T3/4015

摘要： An image signal processor includes an area extracting unit for extracting from an image signal color signals of a local area of a predetermined size which includes a desired pixel. A maximum variance signal selecting unit selects one of the color signals which exhibits a maximum variance over the average variance of the color signals in the local area. In a signal modifying unit, the shape of the other color signals than the selected color signal is modified so that their parameters are equal to the parameters of the selected color signal. In a candidate image generating unit, the other modified color signals and the selected color signal are combined together to generate a plurality of reference image candidates. A reference image selecting unit than selects as a reference image one of the reference image candidates on the basis of a given evaluation function. In a restoring unit, dropout color signals are then restored with the use of the reference image determined by the reference image selecting unit.

摘要翻译： 图像信号处理器包括：区域提取单元，用于从图像信号中提取包括期望像素的预定大小的局部区域的颜色信号。 最大方差信号选择单元选择与局部区域中的颜色信号的平均方差呈现最大方差的颜色信号之一。 在信号修改单元中，修改与选择的颜色信号相比的其它颜色信号的形状，使得它们的参数等于所选颜色信号的参数。 在候选图像生成单元中，将其他修改后的颜色信号和所选择的颜色信号组合在一起，生成多个参考图像候选。 参考图像选择单元，基于给定的评估函数来选择参考图像之一作为参考图像候选。 在恢复单元中，然后使用由参考图像选择单元确定的参考图像来恢复出色的彩色信号。

公开(公告)号：US08259202B2

公开(公告)日：2012-09-04

申请号：US11596207

申请日：2005-05-10

申请人： Taketo Tsukioka

发明人： Taketo Tsukioka

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

CPC分类号： H04N9/045

摘要： In a high precision image processor and image processing program, an output of a one-chip Bayer array CCD is A/D converted and noise reduced, and then entered in a G interpolation circuit which comprises interpolation circuit B which implements interpolation processing of a less resolving power but does not reflect on the result of interpolation an apparent sensitivity difference occurring at a pixel value of a G pixel of the one-chip CCD, and interpolation circuit A which implements interpolation processing of an improved resolving power but reflects an apparent sensitivity difference on the result of interpolation. G interpolation circuit estimates a sensitivity difference at a pixel of interest and combines outputs of interpolation circuits A and B such that for a large sensitivity difference, the output of circuit B is used more, and for a small sensitivity difference, the output of circuit A is used more.

摘要翻译： 在高精度图像处理器和图像处理程序中，单片拜耳阵列CCD的输出被A / D转换和噪声降低，然后进入G插值电路，该插补电路包括实现较少的内插处理的内插电路B 分辨能力，但不反映插值的结果，在单片CCD的G像素的像素值处出现的表观灵敏度差异以及进行改善分辨能力的内插处理而反映出明显的灵敏度差异的插值电路A 对插值的结果。 G内插电路估计感兴趣像素的灵敏度差，并且组合插值电路A和B的输出，使得对于大的灵敏度差，电路B的输出被更多地使用，并且对于小的灵敏度差，电路A的输出 被使用更多。

公开(公告)号：US20100189374A1

公开(公告)日：2010-07-29

申请号：US12752428

申请日：2010-04-01

申请人： Taketo TSUKIOKA

发明人： Taketo TSUKIOKA

IPC分类号： G06K9/40

CPC分类号： H04N1/409 ,  G06T5/002 ,  G06T2207/20192 ,  H04N1/4092 ,  H04N5/367

摘要： An object is to provide an image processor for improving the preservability in an edge portion while effectively removing isolated points. Included are an edge judgment section that judges whether an edge exists in a predetermined region specified by a pixel of interest and surrounding pixels of the pixel of interest; a difference calculation section that calculates differences in pixel value between the pixel of interest and the surrounding pixels in the predetermined region; a weight coefficient calculation section that calculates weight coefficients for the respective surrounding pixels from the differences calculated by the difference calculation section, according to a judgment result of the edge judgment section; a weighted averaging section that calculates a weighted average value of the surrounding pixels by using the weight coefficients calculated by the weight coefficient calculation section; and a correction section that corrects the pixel value of the pixel of interest at least one time based on the weighted average value of the surrounding pixels calculated by the weighted averaging section, the pixel value of the pixel of interest, and the judgment result of the edge judgment section.

摘要翻译： 目的是提供一种图像处理器，用于改善边缘部分的保存性，同时有效地去除孤立点。 包括边缘判断部分，其判断边缘是否存在于感兴趣像素和感兴趣像素的周围像素指定的预定区域中; 差分计算部，计算预定区域中的关注像素与周围像素之间的像素值的差; 权重系数计算部分，根据边缘判断部分的判断结果，根据由差分计算部分计算的差异来计算各周围像素的权重系数; 加权平均部分，通过使用由权重系数计算部分计算的加权系数来计算周围像素的加权平均值; 以及校正部，其基于由加权平均部计算出的周围像素的加权平均值，感兴趣像素的像素值和关注像素的判断结果，至少一次校正感兴趣像素的像素值 边缘判断部分。

公开(公告)号：US20100002104A1

公开(公告)日：2010-01-07

申请号：US12067487

申请日：2006-09-28

申请人： Seigo On ,  Taketo Tsukioka

发明人： Seigo On ,  Taketo Tsukioka

IPC分类号： H04N5/208 ,  H04N5/202

CPC分类号： H04N5/357 ,  G06T5/007 ,  G06T5/40 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N1/4072

摘要： The object is to enable picture compositing having a balanced and uniform appearance over the whole image even when performing space-variant image-signal processing. Provided is an image-signal processing apparatus for performing image-signal processing on an input image signal, the image-signal processing apparatus comprising a first signal processing unit for performing first signal processing on the input image signal; a correction-coefficient calculating unit for calculating a first correction coefficient on the basis of the image signal after being subjected to the first signal processing by the first signal processing unit; and a second signal processing unit for performing second signal processing on the input image signal using the first correction coefficient.

摘要翻译： 目的是使图像合成在整个图像上具有平衡均匀的外观，即使进行空间变异的图像信号处理也是如此。 提供一种用于对输入图像信号执行图像信号处理的图像信号处理装置，所述图像信号处理装置包括用于对输入图像信号执行第一信号处理的第一信号处理单元; 校正系数计算单元，用于根据由第一信号处理单元进行第一信号处理之后的图像信号计算第一校正系数; 以及第二信号处理单元，用于使用第一校正系数对输入图像信号执行第二信号处理。

公开(公告)号：US20080143881A1

公开(公告)日：2008-06-19

申请号：US12032098

申请日：2008-02-15

申请人： Taketo TSUKIOKA

发明人： Taketo TSUKIOKA

IPC分类号： H04N5/00 ,  G06K9/40

CPC分类号： H04N1/4092 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/10024 ,  G06T2207/20192 ,  H04N1/6027 ,  H04N9/045 ,  H04N9/646

摘要： The digital camera (100) has an image processor that corrects an input image for a spatial frequency band. The edge enhancement block (106) computes an edge component for band correction. A signal interpolated at color interpolation block (107) to make compensation for a color component missing from each pixel of a single-chip image is then converted at YC transform block (108) into a luminance signal and a color difference signal after tone correction, the luminance and color signals sent out to YC synthesis block (110) and color saturation correction block (109), respectively. Then, the color saturation correction block (109) controls the color saturation of the color difference signal to send it out to YC synthesis block (110). At the same time, the edge component computed at edge enhancement block (106) is sent out to YC synthesis block (110), too.

摘要翻译： 数字照相机（100）具有校正空间频带的输入图像的图像处理器。 边缘增强块（106）计算用于频带校正的边缘分量。 然后，在颜色插补块（107）内插的用于对单片图像的每个像素缺失的颜色分量进行补偿的信号在YC变换块（108）处被转换成色调校正后的亮度信号和色差信号， 分别发送到YC合成块（110）和色彩饱和度校正块（109）的亮度和色彩信号。 然后，色彩饱和度校正块（109）控制色差信号的色彩饱和度，将其发送到YC合成块（110）。 同时，在边缘增强块（106）处计算的边缘分量也被发送到YC合成块（110）。