-
公开(公告)号：US06781595B2
公开(公告)日：2004-08-24
申请号：US10035711
申请日：2001-10-22
申请人： Seiji Kobayashi , Tomoo Mitsunaga , Hiroaki Ono , Ken Nakajima , Chikako Sano , Nobuyuki Sato
发明人： Seiji Kobayashi , Tomoo Mitsunaga , Hiroaki Ono , Ken Nakajima , Chikako Sano , Nobuyuki Sato
IPC分类号： G09G502
CPC分类号： H04N1/6005 , G06T5/009 , G06T5/40 , G06T5/50 , G06T2207/10024 , G06T2207/20208 , H04N1/6027 , H04N9/045 , H04N9/77
摘要： An image processing apparatus and method and a recording medium therefor control the occurrence of a change in a hue. The histogram of a luminance signal Y is generated in a first step S1. In a second step S2, the histograms of the luminance signals Y are accumulated to generate a cumulative histogram, and the cumulative histogram is subjected to logarithmic approximation thereby to generate a lookup table (LUT) for correcting luminance signals. In a third step S3, a color-difference signal correction parameter LUT is generated by referring to the LUT for correcting luminance signals. In a fourth step S4, an input luminance signal Y is applied to the LUT for correcting luminance signals thereby to acquire a corrected luminance signal Y0. In a fifth step S5, the input luminance signal Y is applied to a color-difference signal correction parameter LUT so as to acquire a correction parameter k. In a sixth step S6, input color-difference signals Cr and Cb are multiplied by the correction parameter k to acquire corrected color-difference signals Cr0 and Cb0.
摘要翻译： 一种图像处理装置和方法及其记录介质，用于控制色相变化的发生。 在第一步骤S1中生成亮度信号Y的直方图。 在第二步骤S2中，累积亮度信号Y的直方图以生成累积直方图，并对累积直方图进行对数近似，从而生成用于校正亮度信号的查找表（LUT）。 在第三步骤S3中，通过参考用于校正亮度信号的LUT来生成色差信号校正参数LUT。 在第四步骤S4中，输入亮度信号Y被施加到用于校正亮度信号的LUT，从而获得校正的亮度信号Y0。 在第五步骤S5中，将输入亮度信号Y施加到色差信号校正参数LUT，以获得校正参数k。 在第六步骤S6中，输入色差信号Cr和Cb与校正参数k相乘以获得校正色差信号Cr0和Cb0。
-
2.发明申请公开(公告)号：US20050238231A1
公开(公告)日：2005-10-27
申请号：US11165710
申请日：2005-06-24
申请人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
发明人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
CPC分类号： H04N1/4074 , G06T5/009 , G06T5/40 , H04N1/407
摘要： An apparatus and a method as well as a storage device of the present invention transform intensity levels with consideration of both features of the intensity levels in an input image and human visual characteristics, wherein the present invention includes the steps of inputting wider dynamic range digital image data, generating a histogram of intensity levels of the image data, generating a histogram equalization LUT by cumulating the histogram, generating a visual characteristics LUT with reference to the histogram equalization LUT, generating a combined LUT by combining the histogram equalization LUT and the visual characteristics LUT, and correcting the image data.
摘要翻译： 本发明的装置和方法以及存储装置考虑输入图像中的强度级别和人类视觉特征两者的特征来变换强度水平，其中本发明包括以下步骤：输入更宽的动态范围数字图像 数据，生成图像数据的强度级别的直方图，通过累积直方图生成直方图均衡LUT，参考直方图均衡LUT生成视觉特征LUT，通过组合直方图均衡LUT和视觉特征来生成组合LUT LUT，并且校正图像数据。
-
3.发明授权公开(公告)号：US07227992B2
公开(公告)日：2007-06-05
申请号：US11165710
申请日：2005-06-24
申请人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
发明人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
IPC分类号： G06K9/00
CPC分类号： H04N1/4074 , G06T5/009 , G06T5/40 , H04N1/407
摘要： An apparatus and a method as well as a storage device of the present invention transform intensity levels with consideration of both features of the intensity levels in an input image and human visual characteristics, wherein the present invention includes the steps of inputting wider dynamic range digital image data, generating a histogram of intensity levels of the image data, generating a histogram equalization LUT by cumulating the histogram, generating a visual characteristics LUT with reference to the histogram equalization LUT, generating a combined LUT by combining the histogram equalization LUT and the visual characteristics LUT, and correcting the image data.
摘要翻译： 本发明的装置和方法以及存储装置考虑输入图像中的强度级别和人类视觉特征两者的特征来变换强度水平，其中本发明包括以下步骤：输入更宽的动态范围数字图像 数据，生成图像数据的强度级别的直方图，通过累积直方图生成直方图均衡LUT，参考直方图均衡LUT生成视觉特征LUT，通过组合直方图均衡LUT和视觉特征来生成组合LUT LUT，并且校正图像数据。
-
公开(公告)号：US06996271B2
公开(公告)日：2006-02-07
申请号：US09970579
申请日：2001-10-04
申请人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
发明人： Hiroaki Ono , Seiji Kobayashi , Tomoo Mitsunaga , Ken Nakajima , Chikako Sano , Nobuyuki Sato
IPC分类号： G06K9/00
CPC分类号： H04N1/4074 , G06T5/009 , G06T5/40 , H04N1/407
摘要： An apparatus and a method as well as a storage device of the present invention transform intensity levels with consideration of both features of the intensity levels in an input image and human visual characteristics, wherein the present invention includes the steps of inputting wider dynamic range digital image data, generating a histogram of intensity levels of the image data, generating a histogram equalization LUT by cumulating the histogram, generating a visual characteristics LUT with reference to the histogram equalization LUT, generating a combined LUT by combining the histogram equalization LUT and the visual characteristics LUT, and correcting the image data.
-
5.发明授权公开(公告)号：US07986360B2
公开(公告)日：2011-07-26
申请号：US12112778
申请日：2008-04-30
申请人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
发明人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
CPC分类号： H04N5/35563 , H04N5/3651 , H04N5/367 , H04N5/372 , H04N9/045
摘要： The present invention relates to an image processing apparatus which can restore, from a color and sensitivity mosaic image acquired using a CCD image sensor of the single plate type or the like, a color image signal of a wide dynamic range wherein the sensitivity characteristics of pixels are uniformized and each of the pixels has all of a plurality of color components. A sensitivity uniformization section uniformizes the sensitivities of pixels of a color and sensitivity mosaic image to produce a color mosaic image, and a color interpolation section interpolates color components of the pixels of the color mosaic image M to produce output images R, G and B. The present invention can be applied to a digital camera which converts a picked up optical image into a color image signal of a wide dynamic range.
摘要翻译： 本发明涉及一种图像处理装置，该图像处理装置可以从采用单板类型的CCD图像传感器等获取的颜色和感光度马赛克图像中恢复宽动态范围的彩色图像信号，其中像素的灵敏度特性 均匀化，并且每个像素具有所有多个颜色分量。 灵敏度均匀化部分使颜色和灵敏度马赛克图像的像素的灵敏度均匀化，以产生彩色马赛克图像，并且颜色插值部分插值彩色马赛克图像M的像素的颜色分量以产生输出图像R，G和B. 本发明可以应用于将拾取的光学图像转换成宽动态范围的彩色图像信号的数字照相机。
-
公开(公告)号：US07847829B2
公开(公告)日：2010-12-07
申请号：US10466015
申请日：2002-01-09
申请人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
发明人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
CPC分类号： H04N5/35563 , H04N5/3651 , H04N5/367 , H04N5/372 , H04N9/045
摘要： An image processing apparatus restores, from a color and sensitivity mosaic image acquired using a CCD image sensor of the single plate type or the like, a color image signal of a wide dynamic range wherein the sensitivity characteristics of pixels are uniformized and each of the pixels has all of a plurality of color components. A sensitivity uniformization section uniformizes the sensitivities of pixels of a color and sensitivity mosaic image to produce a color mosaic image, and a color interpolation section interpolates color components of the pixels of the color mosaic image M to produce output images R, G and B. The present invention can be applied to a digital camera which converts a picked up optical image into a color image signal of a wide dynamic range.
摘要翻译： 图像处理装置从使用单板型等的CCD图像传感器等获取的颜色和感光度马赛克图像恢复宽动态范围的彩色图像信号，其中像素的灵敏度特性被均匀化，并且每个像素 具有多个颜色成分。 灵敏度均匀化部分使颜色和灵敏度马赛克图像的像素的灵敏度均匀化，以产生彩色马赛克图像，并且颜色插值部分插值彩色马赛克图像M的像素的颜色分量以产生输出图像R，G和B. 本发明可以应用于将拾取的光学图像转换成宽动态范围的彩色图像信号的数字照相机。
-
7.发明授权公开(公告)号：US07570285B2
公开(公告)日：2009-08-04
申请号：US10221114
申请日：2002-01-09
申请人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
发明人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
IPC分类号： H04N9/68
CPC分类号： G06T3/4015 , H04N9/045 , H04N2209/046
摘要： The present invention relates to an image processing apparatus which suppresses appearance of a color moire of a color image signal of a wide dynamic range which is produced using an image signal acquired using, for example, a CCD image sensor of the single plate type or the like. A gradation conversion section 71 performs a gradation conversion process for a color mosaic image M to produce a modulated color mosaic image Mg. Color difference image production sections 72 and 3 use the modulated color mosaic image Mg to produce color difference images C and D, respectively. A luminance image production section 74 uses the modulated color mosaic image Mg and the color difference signals C and D to produce a luminance image L. A color space conversion section 75 performs a color space conversion process for the color difference images C and D and the luminance image L to produce modulated images. Gradation reverse conversion sections 76 to 78 perform a modulation reverse conversion process for the modulated images to produce output images R, G and B, respectively. The present invention can be applied, for example, to a digital camera.
摘要翻译： 本发明涉及一种图像处理装置，该图像处理装置抑制使用例如使用单板类型的CCD图像传感器获取的图像信号产生的宽动态范围的彩色图像信号的彩色莫尔条纹 喜欢。 灰度转换部分71执行彩色马赛克图像M的灰度转换处理以产生调制色马赛克图像Mg。 色差图像产生部分72和3使用调制的彩色马赛克图像Mg分别产生色差图像C和D. 亮度图像生成部74使用调制色马赛克图像Mg和色差信号C，D来生成亮度图像L.颜色空间转换部75对色差图像C，D进行色彩空间转换处理， 亮度图像L以产生调制图像。 渐变反转变换部76〜78对调制图像进行调制反转换处理，分别产生输出图像R，G，B。 本发明可以应用于例如数字照相机。
-
公开(公告)号：US07479998B2
公开(公告)日：2009-01-20
申请号：US10221115
申请日：2002-01-09
申请人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
发明人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
CPC分类号： H04N9/045 , H04N5/35563 , H04N2209/045
摘要： The present invention related to an image pickup apparatus which can produce a color and sensitivity mosaic image which can be converted into a color image signal having a wide dynamic range by performing a predetermined image process. Light receiving elements of a CCD image sensor are arranged in a lattice arrangements where attention is paid to the color Green irrespective of the sensitivities. Where attention is paid to the color Red irrespective of the sensitivities, the light receiving elements are arranged on every other line. Also where attention is paid to the color Blue irrespective of the sensitivities, the light receiving elements are arranged on every other line similarly. Consequently, where attention is paid only to the colors of the pixels, the pattern P2 has a Bayer arrangement. A mosaic arrangement of a color is realized by disposing an on-chip color filter on an upper face of the light receiving elements of the CCD image sensor. A mosaic arrangement of a sensitivity is realized by an optical method or an electronic method. The present invention can be applied, for example, to CCD image sensor built in a digital camera.
摘要翻译： 本发明涉及一种能够通过执行预定图像处理而产生可以转换成具有宽动态范围的彩色图像信号的彩色和感光度马赛克图像的图像拾取装置。 CCD图像传感器的光接收元件以格子布置布置，其中注意颜色绿色，而不考虑灵敏度。 在不考虑灵敏度的情况下注意颜色红色，光接收元件布置在每隔一行上。 另外，无论感光度如何，都要注意颜色蓝色，光接收元件同样布置在每隔一行上。 因此，在仅注意像素的颜色的情况下，图案P2具有拜耳排列。 通过在CCD图像传感器的光接收元件的上表面上设置片上滤色器来实现彩色的马赛克布置。 通过光学方法或电子方法实现灵敏度的马赛克布置。 本发明可以应用于例如内置于数码相机中的CCD图像传感器。
-
公开(公告)号：US20080218598A1
公开(公告)日：2008-09-11
申请号：US12073402
申请日：2008-03-05
IPC分类号： H04N5/228
CPC分类号： H04N5/2353 , H04N5/35563 , H04N5/372 , H04N9/045 , H04N2209/045
摘要： A driving device includes a driving control unit that reads out the signal charge generated by at least the charge generating section for a low-sensitivity pixel signal to the charge transfer section, after the predetermined timing, continues incidence of the electromagnetic wave and, after continuing the incidence of the electromagnetic wave, reads out the signal charge generated by at least the charge generating section for a high-sensitivity pixel signal to the charge transfer section, transfers the signal charge read out to the charge transfer section through the charge transfer section, and, concerning at least one of the signal charges for the high-sensitivity pixel signal and the low-sensitivity pixel signal, every time the signal charge is read out to the charge transfer section, transfers the signal charge read out to the charge transfer section through the charge transfer section without retaining the signal charge in the charge transfer section.
摘要翻译： 驱动装置包括驱动控制单元，其在预定定时之后，向电荷转移部分读出至少由电荷产生部分产生的用于低灵敏度像素信号的信号电荷，继续进入电磁波，并在继续 电磁波的入射，向至少一个电荷产生部分产生的高灵敏度像素信号产生的信号电荷读出到电荷转移部分，通过电荷转移部分将读出的信号电荷传送到电荷转移部分， 并且，关于高灵敏度像素信号和低灵敏度像素信号的信号电荷中的至少一个，每当将信号电荷读出到电荷转移部分时，将读出的信号电荷传送到电荷转移部分 通过电荷转移部分，而不保持电荷转移部分中的信号电荷。
-
公开(公告)号：US20080267526A1
公开(公告)日：2008-10-30
申请号：US12112778
申请日：2008-04-30
申请人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
发明人： Tomoo Mitsunaga , Seiji Kobayashi , Hiroaki Ono
IPC分类号： G06K9/40
CPC分类号： H04N5/35563 , H04N5/3651 , H04N5/367 , H04N5/372 , H04N9/045
摘要： The present invention relates to an image processing apparatus which can restore, from a color and sensitivity mosaic image acquired using a CCD image sensor of the single plate type or the like, a color image signal of a wide dynamic range wherein the sensitivity characteristics of pixels are uniformized and each of the pixels has all of a plurality of color components. A sensitivity uniformization section uniformizes the sensitivities of pixels of a color and sensitivity mosaic image to produce a color mosaic image, and a color interpolation section interpolates color components of the pixels of the color mosaic image M to produce output images R, G and B. The present invention can be applied to a digital camera which converts a picked up optical image into a color image signal of a wide dynamic range.
摘要翻译： 本发明涉及一种图像处理装置，该图像处理装置可以从采用单板类型的CCD图像传感器等获取的颜色和感光度马赛克图像中恢复宽动态范围的彩色图像信号，其中像素的灵敏度特性 均匀化，并且每个像素具有所有多个颜色分量。 灵敏度均匀化部分使颜色和灵敏度马赛克图像的像素的灵敏度均匀化，以产生彩色马赛克图像，并且颜色插值部分插值彩色马赛克图像M的像素的颜色分量以产生输出图像R，G和B. 本发明可以应用于将拾取的光学图像转换成宽动态范围的彩色图像信号的数字照相机。
-
-
-
-
-
-
-
-
-
搜索结果
95 条记录 (耗时 0.036 秒)