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1. 发明申请

US20080112639A1 Method and apparatus for removing noise in dark area of image 审中-公开
标题翻译：消除图像暗区噪声的方法和装置
公开(公告)号：US20080112639A1
公开(公告)日：2008-05-15
申请号：US11984211
申请日：2007-11-14
申请人： Kyoung Joong Min , Won Tae Choi , Tae Eung Kim
发明人： Kyoung Joong Min , Won Tae Choi , Tae Eung Kim
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/20 , G06T7/13 , G06T2207/10024 , G06T2207/20012 , G06T2207/20192 , H04N5/357
摘要： A method and apparatus for removing noise in a dark area of an image are provided. An edge magnitude in an N×N window image including a plurality of pixels is calculated. It is determined whether an edge area is present in the window image on the basis of the edge magnitude. A mean value of brightness of the window image is calculated when the edge area is not present. It is determined whether the window image corresponds to a bright area or a dark area on the basis of the mean value. The window image is determined as the bright area when the mean value is higher than a preset brightness reference value, and low-pass filtering is performed on the window image. The window image is determined as the dark area when the mean value does not exceed the reference value, and minimum filtering is performed on the window image.
摘要翻译：提供了用于去除图像的暗区域中的噪声的方法和装置。计算包括多个像素的N×N窗口图像中的边缘幅度。基于边缘大小来确定窗口图像中是否存在边缘区域。当边缘区域不存在时，计算窗口图像的亮度的平均值。基于平均值确定窗口图像是对应于亮区域还是暗区域。当平均值高于预设亮度参考值时，窗口图像被确定为亮区域，并且对窗口图像执行低通滤波。当平均值不超过参考值时，窗口图像被确定为暗区域，并且对窗口图像执行最小滤波。

2. 发明申请

US20110190632A1 ULTRASONIC DIAGNOSTIC APPRATUS AND ULTRASONIC IMAGE PROCESSING METHOD 有权
标题翻译：超声诊断设备和超声图像处理方法
公开(公告)号：US20110190632A1
公开(公告)日：2011-08-04
申请号：US12753724
申请日：2010-04-02
申请人： Gyu Won KIM , Won Tae Choi , Kyoung Joong Min
发明人： Gyu Won KIM , Won Tae Choi , Kyoung Joong Min
IPC分类号： A61B8/14
CPC分类号： A61B8/14
摘要： Disclosed herein is an ultrasonic diagnostic apparatus and ultrasonic image processing method. The ultrasonic diagnostic apparatus includes an ultrasonic transmission unit; An ultrasonic probe emits; An ultrasonic reception unit; An image processing unit; A sound velocity determination unit; and A control unit. Accordingly, there is an advantage in that the actual sound velocity of a reflected wave is estimated, so that high-quality ultrasonic images can be provided, and the time required for the estimation of a sound velocity can be reduced.
摘要翻译：这里公开了超声波诊断装置和超声波图像处理方法。超声波诊断装置包括：超声波发送部; 超声波探头发射; 超声波接收单元; 图像处理单元; 音速确定单元; 和A控制单元。因此，有一个优点是估计反射波的实际声速，从而可以提供高品质的超声波图像，并且可以减少估计声速所需的时间。

3. 发明申请

US20100134650A1 METHOD FOR CONTROLLING AUTO-EXPOSURE 有权
标题翻译：控制自动曝光的方法
公开(公告)号：US20100134650A1
公开(公告)日：2010-06-03
申请号：US12437784
申请日：2009-05-08
申请人： Gyu Won KIM , Hak Sun Kim , Won Tae Choi , Kyoung Joong Min , Joo Young Ha
发明人： Gyu Won KIM , Hak Sun Kim , Won Tae Choi , Kyoung Joong Min , Joo Young Ha
IPC分类号： H04N5/235
CPC分类号： H04N5/2352 , H04N5/2351 , H04N5/2357 , H04N5/243
摘要： An auto-exposure control method includes: creating an exposure table and an analog gain table including an exposure time and an analog gain of an image sensor set according to an index, respectively; calculating an average luminance value of an image frame obtained by the image sensor; checking whether or not the average luminance value is within a pre-set range including a prescribed final target value; if the average luminance value is not within the pre-set range, determining a shift step from indexes which have been applied to a current image frame according to the difference between the average luminance value and the final target value in order to determine indexes of the exposure table and the analog gain table to be applied to a next image frame; and repeatedly performing of reading an exposure time and an analog gain corresponding to the indexes shifted by the shift step determined from the indexes applied to the current image frame, from the exposure table and the analog gain table, applying the same to the image sensor, obtaining a next image frame, and calculating an average luminance value.
摘要翻译：自动曝光控制方法包括：分别根据索引产生曝光表和包括图像传感器组的曝光时间和模拟增益的曝光表和模拟增益表; 计算由所述图像传感器获得的图像帧的平均亮度值; 检查平均亮度值是否在包括规定的最终目标值的预定范围内; 如果平均亮度值不在预设范围内，则根据平均亮度值和最终目标值之间的差，从已经施加到当前图像帧的索引确定移位步长，以便确定曝光表和要应用于下一个图像帧的模拟增益表; 并且从曝光表和模拟增益表重复执行读取与从应用于当前图像帧的指标确定的移位步长相对应的索引的曝光时间和模拟增益，将其应用于图像传感器，获得下一个图像帧，并计算平均亮度值。

4. 发明申请

US20090087092A1 HISTOGRAM STRETCHING APPARATUS AND HISTOGRAM STRETCHING METHOD FOR ENHANCING CONTRAST OF IMAGE 失效
标题翻译：用于增强图像对比度的组织拉伸装置和组织拉伸方法
公开(公告)号：US20090087092A1
公开(公告)日：2009-04-02
申请号：US12238244
申请日：2008-09-25
申请人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
发明人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/00
CPC分类号： G06T5/40 , G06T5/009 , G06T2207/20008
摘要： A histogram stretching apparatus and a histogram stretching method are disclosed to enhance image contrast by stretching a histogram of an input image within a range of a preset maximum expansion level and a preset minimum expansion level. The histogram stretching apparatus performs proper stretching suitable for a characteristic of the input image in due consideration of a saturation portion and a distribution range of a histogram of the input image. The histogram stretching apparatus can improve stretching effects by removing the saturated portion of the input image, and can prevent image distortion even for a monochromatic image. The histogram apparatus can improve histogram stretching effects by adjusting entire image levels of an image having a histogram frequency distribution skewed to a dark or bright side before a stretching operation.
摘要翻译：公开了一种直方图拉伸装置和直方图拉伸方法，以通过在预设的最大膨胀水平和预设的最小膨胀水平的范围内拉伸输入图像的直方图来增强图像对比度。考虑到输入图像的直方图的饱和部分和分布范围，直方图拉伸装置对输入图像的特性进行适当的拉伸。直方图拉伸装置可以通过去除输入图像的饱和部分来改善拉伸效果，并且甚至可以防止单色图像的图像失真。直方图装置可以通过在拉伸操作之前调整具有倾斜到暗或亮侧的直方图频率分布的图像的整个图像水平来改善直方图拉伸效果。

5. 发明授权

US08801616B2 Ultrasonic diagnostic apparatus and ultrasonic image processing method 有权
标题翻译：超声波诊断仪和超声波图像处理方法
公开(公告)号：US08801616B2
公开(公告)日：2014-08-12
申请号：US12753724
申请日：2010-04-02
申请人： Gyu Won Kim , Won Tae Choi , Kyoung Joong Min
发明人： Gyu Won Kim , Won Tae Choi , Kyoung Joong Min
IPC分类号： A61B8/00
CPC分类号： A61B8/14
摘要： Disclosed herein is an ultrasonic diagnostic apparatus and ultrasonic image processing method. The ultrasonic diagnostic apparatus includes an ultrasonic transmission unit; An ultrasonic probe emits; An ultrasonic reception unit; An image processing unit; A sound velocity determination unit; and A control unit. Accordingly, there is an advantage in that the actual sound velocity of a reflected wave is estimated, so that high-quality ultrasonic images can be provided, and the time required for the estimation of a sound velocity can be reduced.
摘要翻译：这里公开了超声波诊断装置和超声波图像处理方法。超声波诊断装置包括：超声波发送部; 超声波探头发射; 超声波接收单元; 图像处理单元; 音速确定单元; 和A控制单元。因此，有一个优点是估计反射波的实际声速，从而可以提供高品质的超声波图像，并且可以减少估计声速所需的时间。

6. 发明授权

US08165419B2 Histogram stretching apparatus and histogram stretching method for enhancing contrast of image 失效
标题翻译：直方图拉伸装置和直方图拉伸方法，用于增强图像的对比度
公开(公告)号：US08165419B2
公开(公告)日：2012-04-24
申请号：US12238244
申请日：2008-09-25
申请人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
发明人： Kyoung Joong Min , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/40 , G06K9/00 , G09G1/14 , G09G3/28 , G09G5/02 , G09G5/00 , G09G5/10 , G03F3/08 , H04N9/64 , H04N5/202
CPC分类号： G06T5/40 , G06T5/009 , G06T2207/20008
摘要： A histogram stretching apparatus and a histogram stretching method are disclosed to enhance image contrast by stretching a histogram of an input image within a range of a preset maximum expansion level and a preset minimum expansion level. The histogram stretching apparatus performs proper stretching suitable for a characteristic of the input image in due consideration of a saturation portion and a distribution range of a histogram of the input image. The histogram stretching apparatus can improve stretching effects by removing the saturated portion of the input image, and can prevent image distortion even for a monochromatic image. The histogram apparatus can improve histogram stretching effects by adjusting entire image levels of an image having a histogram frequency distribution skewed to a dark or bright side before a stretching operation.
摘要翻译：公开了一种直方图拉伸装置和直方图拉伸方法，以通过在预设的最大膨胀水平和预设的最小膨胀水平的范围内拉伸输入图像的直方图来增强图像对比度。考虑到输入图像的直方图的饱和部分和分布范围，直方图拉伸装置对输入图像的特性进行适当的拉伸。直方图拉伸装置可以通过去除输入图像的饱和部分来改善拉伸效果，并且甚至可以防止单色图像的图像失真。直方图装置可以通过在拉伸操作之前调整具有倾斜到暗或亮侧的直方图频率分布的图像的整个图像水平来改善直方图拉伸效果。

7. 发明授权

US08115859B2 Method for controlling auto-exposure 有权
标题翻译：控制自动曝光的方法
公开(公告)号：US08115859B2
公开(公告)日：2012-02-14
申请号：US12437784
申请日：2009-05-08
申请人： Gyu Won Kim , Hak Sun Kim , Won Tae Choi , Kyoung Joong Min , Joo Young Ha
发明人： Gyu Won Kim , Hak Sun Kim , Won Tae Choi , Kyoung Joong Min , Joo Young Ha
IPC分类号： H04N5/20 , H04N5/238 , G03B7/00
CPC分类号： H04N5/2352 , H04N5/2351 , H04N5/2357 , H04N5/243
摘要： An auto-exposure control method includes: creating an exposure table and an analog gain table including an exposure time and an analog gain of an image sensor set according to an index, respectively; calculating an average luminance value of an image frame obtained by the image sensor; checking whether or not the average luminance value is within a pre-set range including a prescribed final target value; if the average luminance value is not within the pre-set range, determining a shift step from indexes which have been applied to a current image frame according to the difference between the average luminance value and the final target value in order to determine indexes of the exposure table and the analog gain table to be applied to a next image frame; and repeatedly performing of reading an exposure time and an analog gain corresponding to the indexes shifted by the shift step determined from the indexes applied to the current image frame, from the exposure table and the analog gain table, applying the same to the image sensor, obtaining a next image frame, and calculating an average luminance value.
摘要翻译：自动曝光控制方法包括：分别根据索引产生曝光表和包括图像传感器组的曝光时间和模拟增益的曝光表和模拟增益表; 计算由所述图像传感器获得的图像帧的平均亮度值; 检查平均亮度值是否在包括规定的最终目标值的预定范围内; 如果平均亮度值不在预设范围内，则根据平均亮度值和最终目标值之间的差，从已经施加到当前图像帧的索引确定移位步长，以便确定曝光表和要应用于下一个图像帧的模拟增益表; 并且从曝光表和模拟增益表重复执行读取与从应用于当前图像帧的指标确定的移位步长相对应的索引的曝光时间和模拟增益，将其应用于图像传感器，获得下一个图像帧，并计算平均亮度值。

8. 发明申请

US20080112622A1 SKIN DETECTION SYSTEM AND METHOD 审中-公开
标题翻译：皮肤检测系统和方法
公开(公告)号：US20080112622A1
公开(公告)日：2008-05-15
申请号：US11877273
申请日：2007-10-23
申请人： Boo Dong KWAK , Bong Soon Kang , Jeong Uk Im , Joo Young Ha , Won Tae Choi , Kang Joo Kim , Tae Eung Kim
发明人： Boo Dong KWAK , Bong Soon Kang , Jeong Uk Im , Joo Young Ha , Won Tae Choi , Kang Joo Kim , Tae Eung Kim
IPC分类号： G06K9/46
CPC分类号： G06K9/00234
摘要： Provided is a skin detection system including a first skin region detecting unit that detects a region included in a first skin region from an image signal applied from outside, the first skin region represented by the distribution of sampled human skins; a second skin region detecting unit that detects a region included in a second skin region, where a human skin region is set, from the image signal; and a skin region processing unit that, when a region included in both of the first and second skin regions is detected, determines the region as a human skin region so as to extract the detected skin region.
摘要翻译：提供一种皮肤检测系统，其包括：第一皮肤区域检测单元，其从外部施加的图像信号检测包含在第一皮肤区域中的区域，所述第一皮肤区域由所抽取的人体皮肤的分布表示; 第二皮肤区域检测单元，根据图像信号检测包括在设置有人体皮肤区域的第二皮肤区域中的区域; 以及皮肤区域处理单元，当检测到包括在第一和第二皮肤区域中的区域时，将该区域确定为人类皮肤区域，以便提取检测到的皮肤区域。

9. 发明授权

US08120670B2 Apparatus and method for controlling gain of color signal 失效
标题翻译：用于控制彩色信号增益的装置和方法
公开(公告)号：US08120670B2
公开(公告)日：2012-02-21
申请号：US12276138
申请日：2008-11-21
申请人： Tae Hyeon Kwon , Won Tae Choi , Tae Eung Kim
发明人： Tae Hyeon Kwon , Won Tae Choi , Tae Eung Kim
IPC分类号： H04N9/73 , G06K9/00
CPC分类号： H04N9/735
摘要： An apparatus for controlling gain of color signal includes an auto white balance algorithm applying unit determining a white estimation region from an input image, and calculating a first color signal gain for correcting an average color signal level of pixels of the white estimation region to white, a pixel determining unit determining a form of each pixel according to brightness and color using the color signal level of the each pixel of the input image, and a color signal gain determining unit determining a color signal gain to be applied to the each pixel according to the form of the each pixel of the input image as any one of the first color signal gain, a second color signal gain determined by the color signal level of the each pixel for correcting the each pixel to white and a unit gain.
摘要翻译：用于控制彩色信号增益的装置包括自动白平衡算法应用单元，用于从输入图像确定白色估计区域，并计算第一颜色信号增益，用于将白色估计区域的像素的平均颜色信号电平校正为白色，像素确定单元，使用所述输入图像的每个像素的颜色信号电平，根据亮度和颜色确定每个像素的形状;以及颜色信号增益确定单元，根据所述颜色信号增益确定应用于每个像素的颜色信号增益将输入图像的每个像素的形式作为第一颜色信号增益中的任何一个，由用于校正每个像素的每个像素的颜色信号电平确定的第二颜色信号增益和单位增益。

10. 发明申请

US20080292184A1 Apparatus and method for automatically adjusting white balance 审中-公开
标题翻译：白平衡自动调节装置及方法
公开(公告)号：US20080292184A1
公开(公告)日：2008-11-27
申请号：US11984309
申请日：2007-11-15
申请人： Keun Woo Park , Won Tae Choi , Tae Eung Kim
发明人： Keun Woo Park , Won Tae Choi , Tae Eung Kim
IPC分类号： G06K9/00 , H04N9/73
CPC分类号： H04N9/73 , G06T5/009 , G06T5/40 , H04N9/735
摘要： Provided is an apparatus for automatically adjusting white balance, the apparatus including an Image Signal Processing (ISP) unit that processes image data; a first histogram setting unit that is connected to the ISP unit, stores the number of pixels corresponding to each Cb and Cr value of the image data applied from the ISP unit so as to set a first histogram, and sets an effective range of the first histogram; a second histogram setting unit that is connected to the first histogram setting unit, subdivides the first histogram included in the effective range so as to set a second histogram, and applies a weight to the second histogram; and a lean setting unit that is connected to the second histogram setting unit, applies preset lean values to the second histogram, to which the weight has been applied, so as to calculate a lean correction value, and delivers the calculated correction value to the ISP unit.
摘要翻译：提供了一种用于自动调整白平衡的装置，该装置包括处理图像数据的图像信号处理（ISP）单元; 连接到ISP单元的第一直方图设置单元存储与从ISP单元应用的图像数据的每个Cb和Cr值相对应的像素数，以设置第一直方图，并且设置第一直方图的有效范围直方图连接到第一直方图设置单元的第二直方图设置单元，将包括在有效范围内的第一直方图进行细分，以便设置第二直方图，并对第二直方图应用权重; 以及连接到第二直方图设定单元的稀薄设定单元，将预先设定的稀薄值应用于已经被应用了权重的第二直方图，以便计算精益校正值，并将计算的校正值传送到ISP 单元。

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