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1. 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。

2. 发明授权

US08213738B2 Method for eliminating noise from image generated by image sensor 有权
标题翻译：消除图像传感器产生的图像噪声的方法
公开(公告)号：US08213738B2
公开(公告)日：2012-07-03
申请号：US12197167
申请日：2008-08-22
申请人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
发明人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/40 , G06K9/48 , H04N5/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20032 , G06T2207/20192 , H04N5/357
摘要： A method for eliminating noise from an image generated by an image sensor, includes: setting a group of pixels arranged in a square matrix and including a central pixel intended to eliminate the noise in the image and peripheral pixels arranged around the central pixel; obtaining absolute difference values between a luminance value of the central pixel and a luminance value of the peripheral pixels according to directionalities of the peripheral pixels about the central pixel; comparing the obtained absolute difference values with first critical values to determine a region to which the central pixel belongs; when the determined region is the contour region, eliminating noise of the group of the pixels according to directionality of the contour; and when the determined region is the noise region, eliminating the noise of the group of the pixels according to a noise level of the group of the pixels.
摘要翻译：一种用于消除由图像传感器产生的图像的噪声的方法，包括：设置排列成方阵的像素组，并包括旨在消除图像中的噪声的中心像素和围绕中心像素布置的周边像素; 根据围绕中心像素的周边像素的方向，获得中心像素的亮度值和周边像素的亮度值之间的绝对差值; 将获得的绝对差值与第一临界值进行比较，以确定中心像素所属的区域; 当所确定的区域是轮廓区域时，根据轮廓的方向消除像素组的噪声; 并且当所确定的区域是噪声区域时，根据像素组的噪声电平消除像素组的噪声。

3. 发明申请

US20090052798A1 METHOD FOR ELIMINATING NOISE FROM IMAGE GENERATED BY IMAGE SENSOR 有权
标题翻译：用于从图像传感器生成的图像中消除噪声的方法
公开(公告)号：US20090052798A1
公开(公告)日：2009-02-26
申请号：US12197167
申请日：2008-08-22
申请人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
发明人： Tae Hyeon Kwon , Hak Sun Kim , Won Tae Choi
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20032 , G06T2207/20192 , H04N5/357
摘要： A method for eliminating noise from an image generated by an image sensor, includes: setting a group of pixels arranged in a square matrix and including a central pixel intended to eliminate the noise in the image and peripheral pixels arranged around the central pixel; obtaining absolute difference values between a luminance value of the central pixel and a luminance value of the peripheral pixels according to directionalities of the peripheral pixels about the central pixel; comparing the obtained absolute difference values with first critical values to determine a region to which the central pixel belongs; when the determined region is the contour region, eliminating noise of the group of the pixels according to directionality of the contour; and when the determined region is the noise region, eliminating the noise of the group of the pixels according to a noise level of the group of the pixels.
摘要翻译：一种用于消除由图像传感器产生的图像的噪声的方法，包括：设置排列成方阵的像素组，并包括旨在消除图像中的噪声的中心像素和围绕中心像素布置的周边像素; 根据围绕中心像素的周边像素的方向，获得中心像素的亮度值和周边像素的亮度值之间的绝对差值; 将获得的绝对差值与第一临界值进行比较，以确定中心像素所属的区域; 当所确定的区域是轮廓区域时，根据轮廓的方向消除像素组的噪声; 并且当所确定的区域是噪声区域时，根据像素组的噪声电平消除像素组的噪声。

4. 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。

5. 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。

6. 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。

7. 发明授权

US08693777B2 Apparatus and method for estimating edge areas of digital image 失效
标题翻译：用于估计数字图像边缘区域的装置和方法
公开(公告)号：US08693777B2
公开(公告)日：2014-04-08
申请号：US13091227
申请日：2011-04-21
申请人： Joo Young Ha , Won Tae Choi , Byung Hyun Kim , Bong Soon Kang , Won Woo Jang , Kyung Rin Kim , Jung Joo Yang , Gi Dong Lee , Kang Joo Kim
发明人： Joo Young Ha , Won Tae Choi , Byung Hyun Kim , Bong Soon Kang , Won Woo Jang , Kyung Rin Kim , Jung Joo Yang , Gi Dong Lee , Kang Joo Kim
IPC分类号： G06K9/00
CPC分类号： H04N1/4092 , G06T7/13 , G06T7/143
摘要： There are provided an apparatus and a method for estimating edge areas of pixels in a digital image to thereby prevent an edge sharpening algorithm from being applied to non-edge area of the digital image. Therefore, the apparatus can accurately determine whether each pixel is in an edge area or in a non-edge area, by generating a binary mask obtained by using a luminance difference average between each pixel and each of neighboring pixels in the digital image. Moreover, the determination of an edge-area or a non-edge area may be applied to various digital images, by adjusting a level of edge-area determination.
摘要翻译：提供了一种用于估计数字图像中的像素的边缘区域的装置和方法，从而防止边缘锐化算法被应用于数字图像的非边缘区域。因此，通过生成通过使用数字图像中的每个像素和每个相邻像素之间的亮度差平均而获得的二进制掩码，该装置可以准确地确定每个像素是在边缘区域还是在非边缘区域。此外，可以通过调整边缘区域确定的水平来将边缘区域或非边缘区域的确定应用于各种数字图像。

8. 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。

9. 发明授权

US07565121B2 Clock noise canceling circuit 失效
标题翻译：时钟噪声消除电路
公开(公告)号：US07565121B2
公开(公告)日：2009-07-21
申请号：US11566587
申请日：2006-12-04
申请人： Joo Yul Ko , Hak Sun Kim , Won Tae Choi , Won Wook So
发明人： Joo Yul Ko , Hak Sun Kim , Won Tae Choi , Won Wook So
IPC分类号： H04B7/08
CPC分类号： H03G5/005 , H04N1/00307
摘要： In a clock noise canceling circuit, a coupler extracts a signal from a clock signal. A filter selects a harmonic component of a preset frequency in the extraction signal from the coupler. A phase shifter phase inverts the harmonic component of the preset frequency from the filter. An AGC amplifier amplifies the phase-inverted harmonic component from the phase shifter. Also, a combiner combines the amplified component from the phase shifter with the clock signal to eliminate the harmonic component of the preset frequency from the clock signal. A power detector detects a power level of the harmonic component of the preset frequency in an output signal of the combiner. Additionally, a controller controls gain of the automatic gain control amplifier based on the power level of the harmonic component detected by the power detector, thereby canceling noises.
摘要翻译：在时钟噪声消除电路中，耦合器从时钟信号中提取信号。滤波器在来自耦合器的提取信号中选择预设频率的谐波分量。移相器相位从滤波器反转预设频率的谐波分量。 AGC放大器放大来自移相器的相位反相谐波分量。此外，组合器将来自移相器的放大组件与时钟信号相结合，以从时钟信号中消除预设频率的谐波分量。功率检测器在组合器的输出信号中检测预设频率的谐波分量的功率电平。此外，控制器基于由功率检测器检测到的谐波分量的功率电平来控制自动增益控制放大器的增益，从而消除噪声。

10. 发明授权

US07330143B2 Digital/analog converter 失效
标题翻译：数字/模拟转换器
公开(公告)号：US07330143B2
公开(公告)日：2008-02-12
申请号：US11428363
申请日：2006-06-30
申请人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
发明人： Byung Hoon Kim , Won Tae Choi , Youn Joong Lee , Chan Woo Park
IPC分类号： H03M1/78
CPC分类号： H03M1/682
摘要： The present invention relates to a digital/analog converter. The digital/analog converter includes a divided-voltage generating section that divides a reference supply voltage through the voltage distribution; a decoder section that receives a digital signal so as to output a decoded selection signal; a first divided-voltage selecting section that selects and outputs a plurality of divided voltages among the divided-voltages generated from the divided-voltage generating section on the basis of the selection signal output from the decoder section; a second divided-voltage selecting section that selects and outputs a plurality of divided-voltages among the divided-voltages output from the first divided-voltage selecting section on the basis of the selection signal output from the decoder section; a divided-voltage storing section that charges and discharges the plurality of divided-voltages output from the second divided-voltage selecting section; a third divided-voltage selecting section that selects a predetermined voltage among the divided-voltages discharged from the divided-voltages storing section on the basis of the selection signal output from the decoder; and a voltage output section that outputs the predetermined voltage selected from the third divided-voltage selecting section.
摘要翻译：本发明涉及数字/模拟转换器。该数/模转换器包括分压电压产生部分，该分压产生部分通过电压分配来划分参考电源电压; 解码器部分，其接收数字信号以输出解码的选择信号; 第一分压电压选择部分，根据从解码器部分输出的选择信号，在从分压产生部分产生的分压中选择和输出多个分压; 第二分压选择部，根据从解码部输出的选择信号，选择并输出从第一分压电压选择部输出的分压电压中的多个分压; 分压电压存储部，对从第二分压选择部输出的多个分压进行充放电; 第三分压电压选择部，其根据从解码器输出的选择信号，选择从分压存储部放电的分压中的规定电压; 以及电压输出部，输出从第三分压选择部选择的预定电压。

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