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1. 发明授权

US08406557B2 Method and apparatus for correcting lens shading 有权
标题翻译：用于校正透镜阴影的方法和装置
公开(公告)号：US08406557B2
公开(公告)日：2013-03-26
申请号：US12832631
申请日：2010-07-08
申请人： Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
发明人： Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
IPC分类号： G06K9/40 , H04N9/64 , H04N5/217
CPC分类号： H04N5/3572
摘要： A lens shading correction method and apparatus are provided for removing vignetting occurring in digital images due to lens shading. A white image captured by an image pickup device and an image pickup unit is separated into reference white images corresponding to color channels. A vignetting center having a maximum light intensity is estimated in each of the reference white images. Multiple reference segments on each of the reference white images are defined. A lens shading correction value corresponding to each pixel constituting the reference segments are calculated using a corresponding light intensity. A lens shading correction function corresponding to each reference segment is derived using a corresponding lens shading correction value. Vignetting of a general image received in a general image processing mode is removed, using the derived multiple lens shading correction functions.
摘要翻译：提供了一种透镜阴影校正方法和装置，用于消除由于透镜阴影而在数字图像中发生的渐晕。由图像拾取装置和图像拾取单元拍摄的白色图像被分离为与颜色通道对应的参考白色图像。在每个参考白色图像中估计具有最大光强度的渐晕中心。定义每个参考白图像上的多个参考段。使用对应的光强度计算与构成基准片段的每个像素对应的镜片阴影校正值。使用相应的透镜阴影校正值导出与每个参考片段对应的镜片遮蔽校正功能。使用导出的多个透镜阴影校正功能来消除在一般图像处理模式中接收的一般图像的渐晕。

2. 发明申请

US20110007969A1 METHOD AND APPARATUS FOR CORRECTING LENS SHADING 有权
标题翻译：矫正镜片的方法和装置
公开(公告)号：US20110007969A1
公开(公告)日：2011-01-13
申请号：US12832631
申请日：2010-07-08
申请人： Min-Kyu PARK , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
发明人： Min-Kyu PARK , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
IPC分类号： G06K9/40
CPC分类号： H04N5/3572
摘要： A lens shading correction method and apparatus are provided for removing vignetting occurring in digital images due to lens shading. A white image captured by an image pickup device and an image pickup unit is separated into reference white images corresponding to color channels. A vignetting center having a maximum light intensity is estimated in each of the reference white images. Multiple reference segments on each of the reference white images are defined. A lens shading correction value corresponding to each pixel constituting the reference segments are calculated using a corresponding light intensity. A lens shading correction function corresponding to each reference segment is derived using a corresponding lens shading correction value. Vignetting of a general image received in a general image processing mode is removed, using the derived multiple lens shading correction functions.
摘要翻译：提供了一种透镜阴影校正方法和装置，用于消除由于透镜阴影而在数字图像中发生的渐晕。由图像拾取装置和图像拾取单元拍摄的白色图像被分离为与颜色通道对应的参考白色图像。在每个参考白色图像中估计具有最大光强度的渐晕中心。定义每个参考白图像上的多个参考段。使用对应的光强度计算与构成基准片段的每个像素对应的镜片阴影校正值。使用相应的透镜阴影校正值导出与每个参考片段对应的镜片遮蔽校正功能。使用导出的多个透镜阴影校正功能来消除在一般图像处理模式中接收的一般图像的渐晕。

3. 发明申请

US20090207274A1 Apparatus and method for adjusting white balance in a digital imaging device 有权
标题翻译：用于调整数字成像装置中白平衡的装置和方法
公开(公告)号：US20090207274A1
公开(公告)日：2009-08-20
申请号：US12378124
申请日：2009-02-11
申请人： Min-Kyu Park , Hyun-Hee Park , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
发明人： Min-Kyu Park , Hyun-Hee Park , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
IPC分类号： H04N9/73
CPC分类号： H04N9/735 , H04N1/6077
摘要： A method and apparatus for adjusting a white balance in a digital imaging device. The method including the steps of: analyzing a histogram of an image to which a white balance algorithm is to be applied; classifying the image, to which the white balance algorithm is to be applied, according to color distribution determination criteria; and the white balance algorithm is applied to the image in a customized manner based on results of the classification based on color distributions. The apparatus includes an image sensor unit for photographing a subject and for creating an original image; and an image processing unit for finding an achromatic color region through estimation of a color temperature of the original image, for extracting a white point of the achromatic color region, and for adjusting a white balance of the original image.
摘要翻译：一种用于调整数字成像装置中的白平衡的方法和装置。该方法包括以下步骤：分析要应用白平衡算法的图像的直方图; 根据颜色分布确定标准对应用白平衡算法的图像进行分类; 并且基于基于颜色分布的分类结果，以定制的方式将白平衡算法应用于图像。该装置包括用于拍摄对象并用于创建原始图像的图像传感器单元; 以及图像处理单元，用于通过估计原始图像的色温来求出无彩色区域，用于提取无彩色区域的白点，并用于调整原始图像的白平衡。

4. 发明授权

US08416316B2 Apparatus and method for adjusting white balance in a digital imaging device 有权
公开(公告)号：US08416316B2
公开(公告)日：2013-04-09
申请号：US12378124
申请日：2009-02-11
申请人： Min-Kyu Park , Hyun-Hee Park , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
发明人： Min-Kyu Park , Hyun-Hee Park , Sung-Dae Cho , Moon-Gi Kang , Chang-Won Kim , Hyun-Mook Oh
IPC分类号： H04N9/73
CPC分类号： H04N9/735 , H04N1/6077
摘要： A method and apparatus for adjusting a white balance in a digital imaging device. The method including the steps of: analyzing a histogram of an image to which a white balance algorithm is to be applied; classifying the image, to which the white balance algorithm is to be applied, according to color distribution determination criteria; and the white balance algorithm is applied to the image in a customized manner based on results of the classification based on color distributions. The apparatus includes an image sensor unit for photographing a subject and for creating an original image; and an image processing unit for finding an achromatic color region through estimation of a color temperature of the original image, for extracting a white point of the achromatic color region, and for adjusting a white balance of the original image.

5. 发明申请

US20100238316A1 APPARATUS AND METHOD FOR CLASSIFYING IMAGES 有权
标题翻译：用于分类图像的装置和方法
公开(公告)号：US20100238316A1
公开(公告)日：2010-09-23
申请号：US12704291
申请日：2010-02-11
申请人： Ji-Hye KIM , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
发明人： Ji-Hye KIM , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： An image classification apparatus and method for Automatic White Balance (AWB) are provided. An input image is divided into blocks including pluralities of pixels. A hue value and a chroma value are calculated for each of the blocks. A color-changed block is detected by calculating, for each one of the blocks, differences between the hue and chroma values calculated for all blocks adjacent to the one of the blocks and the hue and chroma values calculated for the one of the blocks. A hue variance and a chroma variance are calculated for the entire input image if a number of the detected color-changed blocks is greater than or equal to a first threshold. The input image is determined as a non-monochromatic image, if the hue variance is greater than or equal to a second threshold or the chroma variance is greater than or equal to a third threshold.
摘要翻译：提供了一种用于自动白平衡（AWB）的图像分类装置和方法。输入图像被分成包括多个像素的块。为每个块计算色调值和色度值。通过针对每个块计算针对与该一个块相邻的所有块计算的色调和色度值之间的差异以及为该块中的一个块计算的色调和色度值来检测颜色变化块。如果检测到的颜色变化块的数量大于或等于第一阈值，则针对整个输入图像计算色调方差和色度方差。如果色调方差大于或等于第二阈值或色度方差大于或等于第三阈值，则输入图像被确定为非单色图像。

6. 发明授权

US08411965B2 Image processing method and apparatus for detecting an edge of an object within an image 有权
标题翻译：用于检测图像内的物体的边缘的图像处理方法和装置
公开(公告)号：US08411965B2
公开(公告)日：2013-04-02
申请号：US12718511
申请日：2010-03-05
申请人： Hee-Chan Park , Sung-Dae Cho , Min-Kyu Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh
发明人： Hee-Chan Park , Sung-Dae Cho , Min-Kyu Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh
IPC分类号： G06K9/48
CPC分类号： G06T7/13 , G06T2207/20021
摘要： An image processing method and apparatus capable of easily detecting an edge of an object from an input image, in which the edge is detected using one step, without a pre-processing step, and a complicated trigonometric function is not used for gradient detection. The image processing method includes setting a window within an input image, analyzing the window to determine directions of edges of objects within the image included in the window, detecting edge information including the edge directions, and processing and outputting the window using the edge information.
摘要翻译：一种图像处理方法和装置，其不需要用于梯度检测，能够容易地从输入图像中检测出物体的边缘，其中使用一个步骤检测边缘，而无需预处理步骤，并且复杂的三角函数不用于梯度检测。图像处理方法包括设置输入图像内的窗口，分析窗口以确定包括在窗口中的图像内的对象的边缘的方向，检测包括边缘方向的边缘信息，以及使用边缘信息来处理和输出窗口。

7. 发明授权

US08704910B2 Apparatus and method for classifying images 有权
标题翻译：用于分类图像的装置和方法
公开(公告)号：US08704910B2
公开(公告)日：2014-04-22
申请号：US12704291
申请日：2010-02-11
申请人： Ji-Hye Kim , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
发明人： Ji-Hye Kim , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： An image classification apparatus and method for Automatic White Balance (AWB) are provided. An input image is divided into blocks including pluralities of pixels. A hue value and a chroma value are calculated for each of the blocks. A color-changed block is detected by calculating, for each one of the blocks, differences between the hue and chroma values calculated for all blocks adjacent to the one of the blocks and the hue and chroma values calculated for the one of the blocks. A hue variance and a chroma variance are calculated for the entire input image if a number of the detected color-changed blocks is greater than or equal to a first threshold. The input image is determined as a non-monochromatic image, if the hue variance is greater than or equal to a second threshold or the chroma variance is greater than or equal to a third threshold.
摘要翻译：提供了一种用于自动白平衡（AWB）的图像分类装置和方法。输入图像被分成包括多个像素的块。为每个块计算色调值和色度值。通过针对每个块计算针对与该一个块相邻的所有块计算的色调和色度值之间的差异以及为该块中的一个块计算的色调和色度值来检测颜色变化块。如果检测到的颜色变化块的数量大于或等于第一阈值，则针对整个输入图像计算色调方差和色度方差。如果色调方差大于或等于第二阈值或色度方差大于或等于第三阈值，则输入图像被确定为非单色图像。

8. 发明申请

US20100214434A1 APPARATUS AND METHOD FOR ADJUSTING WHITE BALANCE OF DIGITAL IMAGE 审中-公开
标题翻译：调整数字图像白平衡的装置和方法
公开(公告)号：US20100214434A1
公开(公告)日：2010-08-26
申请号：US12638477
申请日：2009-12-15
申请人： Ji-Hye Kim , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
发明人： Ji-Hye Kim , Sung-Dae Cho , Min-Kyu Park , Hee-Chan Park , Jin-Ho Kim , Yun-Je Oh , Kyoung-Tae Kim , Choon-Woo Kim , Seul-Ki Jang
IPC分类号： H04N9/73
CPC分类号： H04N9/735 , H04N9/73
摘要： A method and an apparatus are provided for adjusting white balance of a digital image. An input image is converted into a YCbCr color space. White pixels of the converted input image are detected by determining whether each pixel of the converted input image is included in a preset region of the YCbCr color space. A gain of each channel is calculated from averages of R, G and B values of the detected white pixels. White balance adjustment is performed by applying the calculated gain of each channel to each pixel of the input image.
摘要翻译：提供了一种用于调整数字图像的白平衡的方法和装置。将输入图像转换为YCbCr颜色空间。通过确定转换的输入图像的每个像素是否包括在YCbCr颜色空间的预设区域中来检测经转换的输入图像的白色像素。每个通道的增益由检测到的白色像素的R，G和B值的平均值计算。通过将每个通道的计算增益应用到输入图像的每个像素来执行白平衡调整。

9. 发明申请

US20100079629A1 APPARATUS AND METHOD FOR CORRECTING DEFECTIVE PIXEL 审中-公开
标题翻译：修正缺陷像素的装置和方法
公开(公告)号：US20100079629A1
公开(公告)日：2010-04-01
申请号：US12570839
申请日：2009-09-30
申请人： Min-Kyu PARK , Jin-Min Bang , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh , Sung-Dae Cho
发明人： Min-Kyu PARK , Jin-Min Bang , Hee-Chan Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh , Sung-Dae Cho
IPC分类号： H04N5/222
CPC分类号： H04N5/3675 , H04N9/045
摘要： Disclosed is an apparatus for correcting a value of a defective pixel based on values of neighboring pixels of the defective pixel, the apparatus includes a plurality of first-stage median filters for receiving a value of a target pixel and values of neighboring pixels of the target pixel, and outputting median values of the received values; and at least one second-stage median filter for receiving the value of the target pixel and the median values from the first-stage median filters, and outputting a median value of the values received by the second-stage median filter.
摘要翻译：公开了一种基于缺陷像素的相邻像素的值来校正缺陷像素的值的装置，该装置包括用于接收目标像素的值和目标像素的相邻像素的值的多个第一级中值滤波器像素，并输出接收值的中值; 以及至少一个第二级中值滤波器，用于从第一级中值滤波器接收目标像素的值和中值，并输出由第二级中值滤波器接收的值的中值。

10. 发明申请

US20100226579A1 IMAGE PROCESSING METHOD AND APPARATUS FOR DETECTING AN EDGE OF AN OBJECT WITHIN AN IMAGE 有权
标题翻译：用于检测图像中的对象边缘的图像处理方法和装置
公开(公告)号：US20100226579A1
公开(公告)日：2010-09-09
申请号：US12718511
申请日：2010-03-05
申请人： Hee-Chan Park , Sung-Dae Cho , Min-Kyu Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh
发明人： Hee-Chan Park , Sung-Dae Cho , Min-Kyu Park , Jin-Ho Kim , Ji-Hye Kim , Yun-Je Oh
IPC分类号： G06K9/48
CPC分类号： G06T7/13 , G06T2207/20021
摘要： An image processing method and apparatus capable of easily detecting an edge of an object from an input image, in which the edge is detected using one step, without a pre-processing step, and a complicated trigonometric function is not used for gradient detection. The image processing method includes setting a window within an input image, analyzing the window to determine directions of edges of objects within the image included in the window, detecting edge information including the edge directions, and processing and outputting the window using the edge information.
摘要翻译：一种图像处理方法和装置，其不需要用于梯度检测，能够容易地从输入图像中检测出物体的边缘，其中使用一个步骤检测边缘，而无需预处理步骤，并且复杂的三角函数不用于梯度检测。图像处理方法包括设置输入图像内的窗口，分析窗口以确定包括在窗口中的图像内的对象的边缘的方向，检测包括边缘方向的边缘信息，以及使用边缘信息来处理和输出窗口。

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