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1. 发明授权

US08614750B2 Apparatus and method for auto white balance control considering the effect of single tone image 有权
标题翻译：考虑单色图像效果的自动白平衡控制装置和方法
公开(公告)号：US08614750B2
公开(公告)日：2013-12-24
申请号：US12588516
申请日：2009-10-19
申请人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
发明人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
IPC分类号： H04N5/228 , H04N9/73
CPC分类号： H04N9/735
摘要： An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame.
摘要翻译：一种用于自动白平衡的装置包括直方图生成单元，其针对包括在输入图像帧中的像素写入相应的Cb值和Cr值的直方图;单色调确定单元，将Cb值和Cr值的直方图的相应最大值进行比较具有第一阈值，并且如果所述最大值中的至少一个高于所述第一阈值，则将所述输入图像帧确定为单色图像，并且自动白平衡增益计算单元计算和自动白平衡增益由使用输入图像帧的颜色信息并输出所计算的自动白平衡增益，其中如果输入图像帧被确定为单色图像，则自动白平衡增益计算单元输出相对于先前的输入图像帧。

2. 发明申请

US20100194991A1 Apparatus and method for auto white balance control considering the effect of single tone image 有权
标题翻译：考虑单色图像效果的自动白平衡控制装置和方法
公开(公告)号：US20100194991A1
公开(公告)日：2010-08-05
申请号：US12588516
申请日：2009-10-19
申请人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
发明人： Joo Hyun Kim , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Joo Young Ha
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： An apparatus for auto white balance includes a histogram generation unit writing respective histograms of Cb values and Cr values with regard to pixels included in an input image frame, a single-tone determination unit comparing respective maximum values of the histograms of Cb values and Cr values with a first threshold value, and determining the input image frame as a single-tone image if at least one of the maximum values is higher than the first threshold value, and an auto white balance gain computation unit computing and an auto white balance gain by using color information of an input image frame and outputting the computed auto white balance gain, wherein if the input image frame is determined to be a single-tone image, the auto white balance gain computation unit outputs an auto white balance gain computed with respect to a previous input image frame.
摘要翻译：一种用于自动白平衡的装置包括直方图生成单元，其针对包括在输入图像帧中的像素写入相应的Cb值和Cr值的直方图;单色调确定单元，将Cb值和Cr值的直方图的相应最大值进行比较具有第一阈值，并且如果所述最大值中的至少一个高于所述第一阈值，则将所述输入图像帧确定为单色图像，并且自动白平衡增益计算单元计算和自动白平衡增益由使用输入图像帧的颜色信息并输出所计算的自动白平衡增益，其中如果输入图像帧被确定为单色图像，则自动白平衡增益计算单元输出相对于先前的输入图像帧。

3. 发明授权

US08145014B2 Apparatus and method of removing color noise of digital image 失效
标题翻译：去除数字图像色噪声的装置和方法
公开(公告)号：US08145014B2
公开(公告)日：2012-03-27
申请号：US12188771
申请日：2008-08-08
申请人： Boo Dong Kwak , Bong Soon Kang , Joo Young Ha , Sung Mok Lee , Won Woo Jang , Won Tae Choi , Joo Hyun Kim
发明人： Boo Dong Kwak , Bong Soon Kang , Joo Young Ha , Sung Mok Lee , Won Woo Jang , Won Tae Choi , Joo Hyun Kim
IPC分类号： G06K9/32
CPC分类号： H04N9/646 , H04N9/045
摘要： There is provided an apparatus for removing color noise including: a color interpolation unit performing color interpolation on a bayer pattern image output from an image sensor; a high-pass filter unit performing high-pass filtering on each of the pixels of the bayer pattern image to generate high-pass filtered values of each of the pixels; a high frequency region determining unit comparing pixel values of a target pixel, from which color noise is removed, and pixels adjacent to the target pixel with the high-pass filtered values to determine whether the target pixel is included in a high frequency region; and a color noise region determining unit using differences between color values of the target pixel interpolated by the color interpolation unit and determining whether the target pixel is included in a color noise region when it is determined that the target pixel is included in the high frequency region.
摘要翻译：提供了一种用于去除颜色噪声的装置，包括：彩色内插单元，对从图像传感器输出的拜耳图案图像执行彩色插值; 高通滤波器单元对拜耳图案图像的每个像素执行高通滤波以产生每个像素的高通滤波值; 比较高频区域确定单元，其将通过高通滤波值与目标像素相邻的像素与去除了颜色噪声的像素的像素值进行比较，以确定目标像素是否包括在高频区域中; 以及颜色噪声区域确定单元，其使用由所述颜色内插单元内插的所述目标像素的颜色值之间的差异，并且当确定所述目标像素包括在所述高频区域中时，确定所述目标像素是否包括在颜色噪声区域中。

4. 发明授权

US08131084B2 Apparatus for improving sharpness of image 有权
标题翻译：用于提高图像清晰度的装置
公开(公告)号：US08131084B2
公开(公告)日：2012-03-06
申请号：US12276091
申请日：2008-11-21
申请人： Joo Hyun Kim , Bong Soon Kang , Hyun Soo Kim , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Boo Dong Kwak
发明人： Joo Hyun Kim , Bong Soon Kang , Hyun Soo Kim , Won Woo Jang , Kyung Rin Kim , Won Tae Choi , Boo Dong Kwak
IPC分类号： G06T5/00
CPC分类号： G06T5/20 , G06T5/003 , G06T7/13 , G06T2207/20012 , G06T2207/20192
摘要： Provided is an apparatus for improving the sharpness of an image. The apparatus includes an edge detector, an effective edge judging unit, an effective edge classifying unit, an isolated edge judging unit, and a 2-D HPF applying unit. The edge detector calculates an edge value using brightness relation with neighboring pixels with respect to each of pixels of an input image. The effective edge judging unit determines effective edge pixels. The effective edge classifying unit determines weak edge pixels and strong edge pixels. The isolated edge judging unit judges an isolated edge pixel included in an isolated edge. The 2-D HPF applying unit applies a first 2-D HPF to the weak edge pixels, and applies a second 2-D HPF to the strong edge pixels to generate edge strengthening values. The edge strengthening value applying unit adds the edge strengthening values to brightness values of the respective pixels of the input image.
摘要翻译：提供了一种用于提高图像的清晰度的装置。该装置包括边缘检测器，有效边缘判断单元，有效边缘分类单元，隔离边缘判断单元和2-D HPF施加单元。边缘检测器使用与相邻像素的亮度关系相对于输入图像的每个像素来计算边缘值。有效边缘判断单元确定有效边缘像素。有效边缘分类单元确定弱边缘像素和强边缘像素。隔离边缘判断单元判断包括在隔离边缘中的孤立边缘像素。 2-D HPF应用单元将第一个2-D HPF应用于弱边缘像素，并将第二个2-HPF应用于强边缘像素以产生边缘加强值。边缘强化值应用单元将边缘强化值与输入图像的各个像素的亮度值相加。

5. 发明授权

US08606034B2 Apparatus for improving sharpness of image 失效
标题翻译：用于提高图像清晰度的装置
公开(公告)号：US08606034B2
公开(公告)日：2013-12-10
申请号：US13092438
申请日：2011-04-22
申请人： Joo Young Ha , Won Tae Choi , Bong Soon Kang , Byung Hyun Kim , Joo Hyun Kim , Sun Mi Sin , Won Woo Jang , Hak Yong Han , Gi Dong Lee
发明人： Joo Young Ha , Won Tae Choi , Bong Soon Kang , Byung Hyun Kim , Joo Hyun Kim , Sun Mi Sin , Won Woo Jang , Hak Yong Han , Gi Dong Lee
IPC分类号： G06K9/40
CPC分类号： G06T5/003 , G06T7/13 , G06T2207/20192
摘要： There is provided an apparatus for improving the sharpness of an image, which may prevent occurrence of distortion of an image in an edge enhancement process of the image by applying an active weight in accordance with a two-dimensional (2D) high pass filtering value of the image. The apparatus may include: a 2D high pass filter outputting a high frequency element value for the luminance values of pixels of an input image; a weight generating unit generating a weight changed depending on a magnitude of the high frequency element value; a weight applying unit applying the weight to the high frequency element value; and an edge enhancement image generating unit adding, to the luminance values of the pixels of the input image, the high frequency element value to which the weight is applied to thereby output an image of which an edge is enhanced.
摘要翻译：提供了一种用于提高图像的清晰度的装置，其可以通过根据二维（2D）高通滤波值施加有效权重来防止图像的边缘增强处理中的图像失真的发生图片。所述装置可以包括：输出用于输入图像的像素的亮度值的高频元素值的2D高通滤波器; 权重生成单元，生成根据高频元素值的大小而变化的权重; 加权单元，将所述权重应用于所述高频元素值; 以及边缘增强图像生成单元，对输入图像的像素的亮度值加上加权的高频单元值，从而输出边缘增强的图像。

6. 发明授权

US08666151B2 Apparatus and method for enhancing visibility of color image 有权
标题翻译：提高彩色图像可见度的装置和方法
公开(公告)号：US08666151B2
公开(公告)日：2014-03-04
申请号：US12929036
申请日：2010-12-23
申请人： Joo Hyun Kim , Won Tae Choi , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Hak Yong Han
发明人： Joo Hyun Kim , Won Tae Choi , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Hak Yong Han
IPC分类号： G06K9/00
CPC分类号： H04N1/4074 , G06T5/009 , G06T5/40 , G06T2207/10024
摘要： An apparatus for enhancing the visibility of color images includes: a luminance value cumulative distribution calculator that calculates a cumulative distribution function of the number of pixels from a minimum value of luminance values; a baseband signal determining unit that determines baseband signal pixels having luminance values smaller than a threshold level; a luminance compensation value generator that generates luminance compensation values to apply the lower-level luminance compensation values as the pixels have higher-level luminance values, for the pixels having the luminance values larger than the threshold level; a luminance gain generator that determines a luminance gain applied to the luminance compensation values according to a mean luminance values of the input images and the level of the luminance values of the pixels to which the luminance compensation values are applied; and a luminance value enhancing unit that summing the luminance compensation values including the gain with the luminance values.
摘要翻译：用于提高彩色图像的可见度的装置包括：亮度累积分布计算器，从亮度值的最小值计算像素数的累积分布函数; 基带信号确定单元，确定具有小于阈值电平的亮度值的基带信号像素; 对于具有大于阈值水平的亮度值的像素，产生用于将作为像素的下位亮度补偿值应用于更高亮度的亮度补偿值的亮度补偿值发生器; 亮度增益发生器，其根据输入图像的平均亮度值和施加了亮度补偿值的像素的亮度值的电平来确定施加到亮度补偿值的亮度增益; 以及亮度值增强单元，其将包括增益的亮度补偿值与亮度值相加。

7. 发明申请

US20110249890A1 Apparatus and method for enhancing visibility of color image 有权
标题翻译：提高彩色图像可见度的装置和方法
公开(公告)号：US20110249890A1
公开(公告)日：2011-10-13
申请号：US12929036
申请日：2010-12-23
申请人： Joo Hyun Kim , Won Tae Choi , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Hak Yong Han
发明人： Joo Hyun Kim , Won Tae Choi , Bong Soon Kang , Sung Mok Lee , Won Woo Jang , Hak Yong Han
IPC分类号： G06K9/00
CPC分类号： H04N1/4074 , G06T5/009 , G06T5/40 , G06T2207/10024
摘要： An apparatus for enhancing the visibility of color images includes: a luminance value cumulative distribution calculator that calculates a cumulative distribution function of the number of pixels from a minimum value of luminance values; a baseband signal determining unit that determines baseband signal pixels having luminance values smaller than a threshold level; a luminance compensation value generator that generates luminance compensation values to apply the lower-level luminance compensation values as the pixels have higher-level luminance values, for the pixels having the luminance values larger than the threshold level; a luminance gain generator that determines a luminance gain applied to the luminance compensation values according to a mean luminance values of the input images and the level of the luminance values of the pixels to which the luminance compensation values are applied; and a luminance value enhancing unit that summing the luminance compensation values including the gain with the luminance values.
摘要翻译：用于提高彩色图像的可见度的装置包括：亮度累积分布计算器，从亮度值的最小值计算像素数的累积分布函数; 基带信号确定单元，确定具有小于阈值电平的亮度值的基带信号像素; 对于具有大于阈值水平的亮度值的像素，产生用于将作为像素的下位亮度补偿值应用于更高亮度值的亮度补偿值的亮度补偿值发生器; 亮度增益发生器，其根据输入图像的平均亮度值和施加了亮度补偿值的像素的亮度值的电平来确定施加到亮度补偿值的亮度增益; 以及亮度值增强单元，其将包括增益的亮度补偿值与亮度值相加。

8. 发明申请

US20090046928A1 Auto white balance method 审中-公开
标题翻译：自动白平衡法
公开(公告)号：US20090046928A1
公开(公告)日：2009-02-19
申请号：US12222660
申请日：2008-08-13
申请人： Boo Dong Kwak , Bong Soon Kang , Sang Choon Kim , Joo Young Ha , Kyoung Soo Son , Hak Sun Kim , Won Tae Choi , Joo Hyun Kim
发明人： Boo Dong Kwak , Bong Soon Kang , Sang Choon Kim , Joo Young Ha , Kyoung Soo Son , Hak Sun Kim , Won Tae Choi , Joo Hyun Kim
IPC分类号： G06K9/03
CPC分类号： H04N1/608 , H04N9/735
摘要： An auto white balance method includes converting a color space of an input image from an RGB color space into the Commission International de I'Eclairage (CIE) L*a*b* color space, determining at least a portion of pixels of the input image, assumed that a reference white color is changed, in a range of a predetermined L*a*b* value as pixels to be used for estimating the reference white color, determining averages of an L* value, an a* value, a b* value of the determined pixels to be used for estimating the reference white color as a reference white color estimation value, and calculating a color gain to move the reference white color estimation value to a target value for a predetermined white balance.
摘要翻译：自动白平衡方法包括将来自RGB颜色空间的输入图像的颜色空间转换为国际照相机（CIE）L * a * b *颜色空间，确定输入图像的至少一部分像素假设在作为用于估计参考白色的像素的预定L * a * b *值的范围内改变参考白色，确定L *值，a *值，ab *的平均值，用于估计参考白色的确定像素的值作为参考白色估计值，以及计算颜色增益以将参考白色颜色估计值移动到预定白平衡的目标值。

9. 发明授权

US08145009B2 Apparatus for removing ringing noise and apparatus for removing noise 失效
标题翻译：消除噪音的设备和消除噪音的设备
公开(公告)号：US08145009B2
公开(公告)日：2012-03-27
申请号：US12121057
申请日：2008-05-15
申请人： Boo Dong Kwak , Bong Soon Kang , Won Woo Jang , Hak Sun Kim , Joo Hyun Kim , Won Tae Choi
发明人： Boo Dong Kwak , Bong Soon Kang , Won Woo Jang , Hak Sun Kim , Joo Hyun Kim , Won Tae Choi
IPC分类号： G06K9/40
CPC分类号： H04N5/21 , G06T5/002 , H04N19/86
摘要： Provided are an apparatus for removing ringing noise and an apparatus for removing noise. The apparatuses includes a representative value setting block dividing pixel data in one block including a plurality of pixel data into two groups through a K-means algorithm and setting a representative value in each of the groups; a parameter generator block calculating intervals and approaches between all the pixel data in the block and a pair of the representative values; and a correction block correcting an inputted pixel data value using the intervals and the approaches.
摘要翻译：提供了一种消除振铃噪声的装置和一种消除噪声的装置。该装置包括代表值设置块，通过K均值算法将包括多个像素数据的一个块中的像素数据分成两组，并在每个组中设置代表值; 计算块中所有像素数据和一对代表值之间的间隔和方法的参数生成器块; 以及校正块，其使用间隔和方法校正输入的像素数据值。

10. 发明申请

US20080285877A1 APPARATUS FOR REMOVING RINGING NOISE AND APPARATUS FOR REMOVING NOISE 失效
标题翻译：移除噪声的装置和拆除噪声的装置
公开(公告)号：US20080285877A1
公开(公告)日：2008-11-20
申请号：US12121057
申请日：2008-05-15
申请人： Boo Dong KWAK , Bong Soon Kang , Won Woo Jang , Hak Sun Kim , Joo Hyun Kim , Won Tae Choi
发明人： Boo Dong KWAK , Bong Soon Kang , Won Woo Jang , Hak Sun Kim , Joo Hyun Kim , Won Tae Choi
IPC分类号： G06K9/40
CPC分类号： H04N5/21 , G06T5/002 , H04N19/86
摘要： Provided are an apparatus for removing ringing noise and an apparatus for removing noise. The apparatuses includes a representative value setting block dividing pixel data in one block including a plurality of pixel data into two groups through a K-means algorithm and setting a representative value in each of the groups; a parameter generator block calculating intervals and approaches between all the pixel data in the block and a pair of the representative values; and a correction block correcting an inputted pixel data value using the intervals and the approaches.
摘要翻译：提供了一种消除振铃噪声的装置和一种消除噪声的装置。该装置包括代表值设置块，通过K均值算法将包括多个像素数据的一个块中的像素数据分成两组，并在每个组中设置代表值; 计算块中所有像素数据和一对代表值之间的间隔和方法的参数生成器块; 以及校正块，其使用间隔和方法校正输入的像素数据值。

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