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公开(公告)号：US07583301B2
公开(公告)日：2009-09-01
申请号：US11423770
申请日：2006-06-13
申请人： Junzou Sakurai , Takanori Miki
发明人： Junzou Sakurai , Takanori Miki
IPC分类号： H04N5/217
CPC分类号： H04N9/045 , H04N5/217 , H04N5/3572
摘要： Accurately suppress chromatic aberration arising in a subject image is described. An image signal, which is obtained by a lens and a CCD and pertains to a subject image, is subjected to white balance adjustment performed by a white balance adjustment circuit. The signal is supplied to a color-blurring detection circuit before undergoing gamma correction. The color-blurring detection circuit has a low slice circuit, a high-pass filter, and a high clip circuit; detects an edge portion of a highlight of a G signal constituting the image signal; and supplies the detected edge portion as a color-blurring detection signal to a color-blurring suppressor circuit disposed subsequent to a γ correction circuit. The color-blurring suppressor circuit corrects color-difference signals CB, CR, which have been subjected to gamma correction, by use of the color-blurring detection signal, thereby suppressing the color-blurring having arisen in the edge of a highlight of the image.
摘要翻译： 对被摄体图像中产生的色像差进行精确的抑制。 通过透镜和CCD获得并与被摄体图像相关的图像信号经受由白平衡调节电路执行的白平衡调整。 在进行伽马校正之前，该信号被提供给颜色模糊检测电路。 彩色模糊检测电路具有低片电路，高通滤波器和高限幅电路; 检测构成图像信号的G信号的高光的边缘部分; 并且将检测到的边缘部分作为颜色模糊检测信号提供给设置在伽马校正电路之后的色模抑制电路。 彩色模糊抑制电路通过使用颜色模糊检测信号来校正已进行伽马校正的色差信号CB，CR，从而抑制在图像的高亮边缘产生的颜色模糊 。
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公开(公告)号：US07830419B2
公开(公告)日：2010-11-09
申请号：US11425223
申请日：2006-06-20
申请人： Junzou Sakurai
发明人： Junzou Sakurai
IPC分类号： H04N9/73
CPC分类号： H04N9/735
摘要： To determine a more appropriate WB gain. A first image data, which is obtained by way of photographing essentially the same subject as that of a main image intended by a user without firing a strobe light for preliminary illumination, and a second image data, which is obtained by way of photographing the same while firing the strobe light for preliminary illumination, are captured. Subsequently, a typical value of each of blocks constituting the first and second image data and the type of a light source of the same are acquired as block information. The thus-acquired pieces of block information about the first and second image data are compared with each other, to thus acquire the tendency of a color change in subject before and after preliminary illumination. An environment light source is estimated on the basis of the obtained tendency of a color change.
摘要翻译： 确定更合适的WB增益。 第一图像数据，其通过拍摄基本上与用户想要的主图像相同的被摄体而获得，而不点燃用于预备照明的闪光灯，以及通过拍摄相同的方式获得的第二图像数据 在拍摄用于初步照明的闪光灯的同时，被捕获。 随后，获取构成第一和第二图像数据的每个块的典型值及其光源的类型作为块信息。 将如此获取的关于第一和第二图像数据的块信息彼此进行比较，从而获得预备照明之前和之后对象的颜色变化的趋势。 基于获得的颜色变化趋势来估计环境光源。
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公开(公告)号：US20090167917A1
公开(公告)日：2009-07-02
申请号：US12116283
申请日：2008-05-07
申请人： Takanori Miki , Junzou Sakurai
发明人： Takanori Miki , Junzou Sakurai
IPC分类号： H04N5/335
CPC分类号： H04N9/045 , G06T3/4015 , H04N5/347 , H04N5/372 , H04N9/646
摘要： To improve sensitivity by adding pixels, and improve precision of pixel interpolation in an imaging device. An imaging device is provided in which pixels are added along a horizontal direction or a vertical direction to improve sensitivity of an imaging element. An R pixel signal, a G pixel signal, and a B pixel signal in which pixels are added, for example, along the vertical direction are output from a CCD (12). A CFA interpolation unit (24) interpolates the G pixel signal using an adjacent pixel along the horizontal direction. The CFA interpolation unit (24) also interpolates the R pixel signal and the B pixel signal along the horizontal direction using an adjacent pixel along the horizontal direction and interpolates along the vertical direction using correlation of the interpolated G pixel.
摘要翻译： 通过添加像素来提高灵敏度，并提高成像设备中像素插值的精度。 提供了一种成像装置，其中沿着水平方向或垂直方向添加像素以提高成像元件的灵敏度。 从CCD（12）输出R像素信号，G像素信号和像素相加的B像素信号，例如沿垂直方向。 CFA内插单元（24）使用沿着水平方向的相邻像素内插G像素信号。 CFA内插单元（24）还使用沿着水平方向的相邻像素沿着水平方向内插R像素信号和B像素信号，并且使用内插的G像素的相关性沿着垂直方向内插。
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公开(公告)号：US20080013850A1
公开(公告)日：2008-01-17
申请号：US11616985
申请日：2006-12-28
IPC分类号： G06K9/40
CPC分类号： G06T5/50 , G06T5/003 , G06T2207/10024 , H04N5/23248 , H04N5/23254 , H04N5/23267 , H04N9/045
摘要： An image processing apparatus is provided which performs image restoration as necessary while a computing processing burden based on an image restoration algorithm is reduced. RAW data of a blurred image is input to an RGB interpolation section. The RGB interpolation section generates an R component image, a G component image, and a B component image based on the RAW data. The G component image is input to an image restoration processing section and the R and B component images are input to an RGB to YCC section. The image restoration processing section performs an image restoration process based on a predetermined image restoration algorithm by using a PSF image representing a predetermined point spread function. The RGB to YCC section generates a brightness component image Y and color difference component images CR and CB based on the G component image having been subjected to the image restoration process and the R and B component images which was not subjected to any image restoration process.
摘要翻译： 提供一种图像处理装置，其在基于图像恢复算法的计算处理负担减少时根据需要进行图像恢复。 将模糊图像的RAW数据输入到RGB插值部。 RGB插值部根据RAW数据生成R分量图像，G分量图像和B分量图像。 G分量图像被输入到图像恢复处理部分，并且R和B分量图像被输入到RGB到YCC部分。 图像恢复处理部分通过使用表示预定点扩散函数的PSF图像，基于预定图像恢复算法执行图像恢复处理。 RGB到YCC部分基于已经进行图像恢复处理的G分量图像和没有进行任何图像恢复处理的R分量图像和B分量图像，生成亮度分量图像Y和色差分量图像CR和CB。
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公开(公告)号：US20060221192A1
公开(公告)日：2006-10-05
申请号：US11257563
申请日：2005-10-25
申请人： Kenichi Nakajima , Junzou Sakurai
发明人： Kenichi Nakajima , Junzou Sakurai
CPC分类号： H04N5/2351 , H04N5/2357 , H04N9/735
摘要： A digital camera capable of accurately detecting flicker even while a video image is displayed on a display device is provided. In a digital camera, a video image is displayed on a display device 40 serving as a viewfinder for photographing based on a display video signal supplied from a CMOS image sensor 120 while image data based on a recording video signal supplied from the CMOS image sensor 120 is recorded in a recording unit 50. The digital camera detects flicker based on a video signal supplied from a group of pixel circuits which do not supply the display video signal among the group of pixel circuits forming the CMOS image sensor 120.
摘要翻译： 提供了即使在显示装置上显示视频图像时也能够准确地检测闪烁的数字照相机。 在数码相机中，基于从CMOS图像传感器120提供的显示视频信号，在作为用于拍摄的取景器的显示设备 40 上显示视频图像，而图像 基于从CMOS图像传感器120提供的记录视频信号的数据被记录在记录单元50中。 数字照相机根据从形成CMOS图像传感器120的像素电路组中不提供显示视频信号的一组像素电路提供的视频信号来检测闪烁。
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公开(公告)号：US08154627B2
公开(公告)日：2012-04-10
申请号：US12113229
申请日：2008-05-01
申请人： Junzou Sakurai , Takanori Miki
发明人： Junzou Sakurai , Takanori Miki
CPC分类号： H04N9/045 , G06T3/4015 , H04N2209/046
摘要： To improve sensitivity by adding pixels, and improve precision of pixel interpolation in an imaging device.An imaging device is provided in which pixels are added along a horizontal direction or a vertical direction to improve sensitivity of an imaging element. An R pixel signal, a G pixel signal, and a B pixel signal in which pixels are added, for example, along the vertical direction are output from a CCD (12). A CFA interpolation unit (24) interpolates the G pixel signal using an adjacent pixel along the horizontal direction. The CFA interpolation unit (24) also interpolates the R pixel signal and the B pixel signal along the horizontal direction using an adjacent pixel along the horizontal direction and interpolates along the vertical direction using correlation of the interpolated G pixel.
摘要翻译： 通过添加像素来提高灵敏度，并提高成像设备中像素插值的精度。 提供了一种成像装置，其中沿着水平方向或垂直方向添加像素以提高成像元件的灵敏度。 从CCD（12）输出R像素信号，G像素信号和像素相加的B像素信号，例如沿垂直方向。 CFA内插单元（24）使用沿着水平方向的相邻像素内插G像素信号。 CFA内插单元（24）还使用沿着水平方向的相邻像素沿着水平方向内插R像素信号和B像素信号，并且使用内插的G像素的相关性沿着垂直方向内插。
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公开(公告)号：US08036481B2
公开(公告)日：2011-10-11
申请号：US11616985
申请日：2006-12-28
IPC分类号： G06K9/40
CPC分类号： G06T5/50 , G06T5/003 , G06T2207/10024 , H04N5/23248 , H04N5/23254 , H04N5/23267 , H04N9/045
摘要： An image processing apparatus is provided which performs image restoration as necessary while a computing processing burden based on an image restoration algorithm is reduced. RAW data of a blurred image is input to an RGB interpolation section. The RGB interpolation section generates an R component image, a G component image, and a B component image based on the RAW data. The G component image is input to an image restoration processing section and the R and B component images are input to an RGB to YCC section. The image restoration processing section performs an image restoration process based on a predetermined image restoration algorithm by using a PSF image representing a predetermined point spread function. The RGB to YCC section generates a brightness component image Y and color difference component images CR and CB based on the G component image having been subjected to the image restoration process and the R and B component images which was not subjected to any image restoration process.
摘要翻译： 提供一种图像处理装置，其在基于图像恢复算法的计算处理负担减少时根据需要进行图像恢复。 将模糊图像的RAW数据输入到RGB插值部。 RGB插值部根据RAW数据生成R分量图像，G分量图像和B分量图像。 G分量图像被输入到图像恢复处理部分，并且R和B分量图像被输入到RGB到YCC部分。 图像恢复处理部分通过使用表示预定点扩散函数的PSF图像，基于预定图像恢复算法执行图像恢复处理。 RGB到YCC部分基于已经进行图像恢复处理的G分量图像和没有进行任何图像恢复处理的R分量图像和B分量图像，生成亮度分量图像Y和色差分量图像CR和CB。
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公开(公告)号：US07636109B2
公开(公告)日：2009-12-22
申请号：US11257563
申请日：2005-10-25
申请人： Kenichi Nakajima , Junzou Sakurai
发明人： Kenichi Nakajima , Junzou Sakurai
CPC分类号： H04N5/2351 , H04N5/2357 , H04N9/735
摘要： A digital camera capable of accurately detecting flicker even while a video image is displayed on a display device is provided. In a digital camera, a video image is displayed on a display device 40 serving as a viewfinder for photographing based on a display video signal supplied from a CMOS image sensor 120 while image data based on a recording video signal supplied from the CMOS image sensor 120 is recorded in a recording unit 50. The digital camera detects flicker based on a video signal supplied from a group of pixel circuits which do not supply the display video signal among the group of pixel circuits forming the CMOS image sensor 120.
摘要翻译： 提供了即使在显示装置上显示视频图像时也能够准确地检测闪烁的数字照相机。 在数码相机中，基于从CMOS图像传感器120提供的显示视频信号，基于从CMOS图像传感器120提供的记录视频信号的图像数据，视频图像被显示在用作摄像取景器的显示装置40上 被记录在记录单元50中。数字照相机基于从组成CMOS图像传感器120的像素电路组中不提供显示视频信号的一组像素电路提供的视频信号来检测闪烁。
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公开(公告)号：US20090167903A1
公开(公告)日：2009-07-02
申请号：US12113229
申请日：2008-05-01
申请人： Junzou Sakurai , Takanori Miki
发明人： Junzou Sakurai , Takanori Miki
CPC分类号： H04N9/045 , G06T3/4015 , H04N2209/046
摘要： To improve sensitivity by adding pixels, and improve precision of pixel interpolation in an imaging device.An imaging device is provided in which pixels are added along a horizontal direction or a vertical direction to improve sensitivity of an imaging element. An R pixel signal, a G pixel signal, and a B pixel signal in which pixels are added, for example, along the vertical direction are output from a CCD (12). A CFA interpolation unit (24) interpolates the G pixel signal using an adjacent pixel along the horizontal direction. The CFA interpolation unit (24) also interpolates the R pixel signal and the B pixel signal along the horizontal direction using an adjacent pixel along the horizontal direction and interpolates along the vertical direction using correlation of the interpolated G pixel.
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公开(公告)号：US20060221205A1
公开(公告)日：2006-10-05
申请号：US11257562
申请日：2005-10-25
申请人： Kenichi Nakajima , Junzou Sakurai
发明人： Kenichi Nakajima , Junzou Sakurai
IPC分类号： H04N9/73
CPC分类号： H04N9/735 , H04N5/235 , H04N5/2357
摘要： A digital camera capable of performing more stable white balance adjustment is provided. In a digital camera for adjusting white balance of a video signal corresponding to an object and supplied from an image sensor, a white balance adjustment circuit 34 changes at least some of a plurality of light source regions predefined on a color difference plane based on a result of detection of flicker in a light source illuminating the object performed by a flicker detection circuit 70. The white balance adjustment circuit 34 then checks which of the plurality of light source regions containing the changed region includes the color difference component of the video signal, thereby estimating the light source of the object, and adjusting white balance in accordance with the estimation result.
摘要翻译： 提供能够进行更稳定的白平衡调整的数码相机。 在用于调整对象物和从图像传感器提供的视频信号的白平衡的数码相机中，白平衡调整电路34基于结果改变在色差平面上预先定义的多个光源区域中的至少一些 在由闪烁检测电路70进行的照明对象的光源中检测到闪烁。 白平衡调整电路34然后检查包含改变区域的多个光源区域中的哪一个包括视频信号的色差分量，从而估计对象的光源，并根据估计结果调整白平衡。
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