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1. 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。

2. 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。

3. 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。

4. 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。

5. 发明申请

US20070207768A1 TELEPHONE SIGNAL CANCELLATION CIRCUIT, DIGITAL BROADCASTING RECEPTION CIRCUIT AND PORTABLE DIGITAL BROADCASTING RECEPTION APPARATUS 失效
标题翻译：电话信号取消电路，数字广播接收电路和便携式数字广播接收设备
公开(公告)号：US20070207768A1
公开(公告)日：2007-09-06
申请号：US11565522
申请日：2006-11-30
申请人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
发明人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
IPC分类号： H04Q7/20 , H04M11/00
CPC分类号： H04B1/16
摘要： A telephone signal cancellation circuit, a digital broadcasting reception circuit and a portable digital broadcasting reception apparatus is provided. The telephone signal cancellation circuit, includes a signal coupler for separating a part of a reception signal, a telephone signal selection filter for passing a telephone signal among signals from the signal coupler, a phase shifter for performing phase inversion on the telephone signal among the signals from the telephone signal selection filter, and a combiner for combining the signal from the phase shifter and the reception signal, and canceling the telephone signal included in the reception signal.
摘要翻译：提供电话信号消除电路，数字广播接收电路和便携式数字广播接收装置。电话信号消除电路包括用于分离接收信号的一部分的信号耦合器，用于在来自信号耦合器的信号之间传递电话信号的电话信号选择滤波器，用于对信号中的电话信号进行相位反转的移相器以及用于组合来自移相器的信号和接收信号的组合器，以及抵消包括在接收信号中的电话信号。

6. 发明授权

US08306320B2 2D image segmentation apparatus and method, and apparatus and method for removing red-eye in the image 失效
标题翻译： 2D图像分割装置和方法，以及用于去除图像中红眼的装置和方法
公开(公告)号：US08306320B2
公开(公告)日：2012-11-06
申请号：US12273878
申请日：2008-11-19
申请人： Kang Joo Kim , Bong Soon Kang , Suk Chan Kim , Won Woo Jang , Sung Jin Lee , Jung Hwan Park , Hak Sun Kim , Won Tae Choi , Boo Dong Kwak
发明人： Kang Joo Kim , Bong Soon Kang , Suk Chan Kim , Won Woo Jang , Sung Jin Lee , Jung Hwan Park , Hak Sun Kim , Won Tae Choi , Boo Dong Kwak
IPC分类号： G06K9/34
CPC分类号： G06T7/90 , G06T2207/30216
摘要： A Two-Dimensional (2D) image segmentation apparatus for segmenting pixels of a progressive input 2D image includes a group information storing unit storing information of pixel groups including a plurality of adjacent pixels; a pixel determining unit determining coordinates of an input pixel, and determining whether the input pixel is an effective pixel for segmentation; a group scanning unit scanning a adjacent pixel group disposed in a scan range preset from the effective pixel in the group storing unit when the input pixel is determined as the effective pixel by the pixel determining unit; and a group information updating unit updating information of a pixel group stored in the group information storing unit according to whether there is the scanned adjacent pixel group and a pixel group including an input pixel preceding the effective pixel. Moreover, a method is provided that removes red-eye using area information of a pixel group determined by the segmentation apparatus.
摘要翻译：用于分割逐行输入2D图像的像素的二维（2D）图像分割装置包括存储包括多个相邻像素的像素组的信息的组信息存储单元; 像素确定单元，确定输入像素的坐标，以及确定输入像素是否是用于分割的有效像素; 当所述输入像素被所述像素确定单元确定为有效像素时，所述组扫描单元扫描设置在从所述组存储单元中的有效像素预设的扫描范围中的相邻像素组; 以及组信息更新单元，根据是否存在扫描的相邻像素组和包括有效像素之前的输入像素的像素组来更新存储在组信息存储单元中的像素组的信息。此外，提供了一种使用由分割装置确定的像素组的区域信息去除红眼的方法。

7. 发明授权

US07773966B2 Mobile terminal and method of reducing interfering phase-noise in the mobile terminal 有权
标题翻译：移动终端和减少移动终端干扰相位噪声的方法
公开(公告)号：US07773966B2
公开(公告)日：2010-08-10
申请号：US11747533
申请日：2007-05-11
申请人： Won Wook So , Hak Sun Kim , Won Tae Choi , Young Kyu Park , Joo Yul Ko
发明人： Won Wook So , Hak Sun Kim , Won Tae Choi , Young Kyu Park , Joo Yul Ko
IPC分类号： H04B1/18 , H04K3/00
CPC分类号： H04B1/525
摘要： A mobile terminal capable of breaking a phase-noise signal caused by a high power transmission signal of a mobile phone such as GSM when receiving digital TV broadcasting such as DVB-H and a method of reducing interfering phase-noise in the mobile terminal. The mobile terminal includes a first RF transmitter/receiver; a first signal coupler; a phase-noise filter; a phase shifter; a VGA amplifier; and a signal combiner.
摘要翻译：一种移动终端，当接收诸如DVB-H的数字电视广播时，能够破坏诸如GSM之类的移动电话的高功率传输信号引起的相位噪声信号，以及减少移动终端中的干扰相位噪声的方法。移动终端包括第一RF发射机/接收机; 第一信号耦合器; 相位噪声滤波器; 移相器一个VGA放大器; 和信号组合器。

8. 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。

9. 发明授权

US07664455B2 Telephone signal cancellation circuit, digital broadcasting reception circuit and portable digital broadcasting reception apparatus 失效
标题翻译：电话信号消除电路，数字广播接收电路和便携式数字广播接收装置
公开(公告)号：US07664455B2
公开(公告)日：2010-02-16
申请号：US11565522
申请日：2006-11-30
申请人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
发明人： Won Wook So , Hak Sun Kim , Boo Dong Kwak , Won Tae Choi , Joo Yul Ko
IPC分类号： H04B1/10 , H04B17/00
CPC分类号： H04B1/16
摘要： A telephone signal cancellation circuit, a digital broadcasting reception circuit and a portable digital broadcasting reception apparatus is provided. The telephone signal cancellation circuit, includes a signal coupler for separating a part of a reception signal, a telephone signal selection filter for passing a telephone signal among signals from the signal coupler, a phase shifter for performing phase inversion on the telephone signal among the signals from the telephone signal selection filter, and a combiner for combining the signal from the phase shifter and the reception signal, and canceling the telephone signal included in the reception signal.
摘要翻译：提供电话信号消除电路，数字广播接收电路和便携式数字广播接收装置。电话信号消除电路包括用于分离接收信号的一部分的信号耦合器，用于在来自信号耦合器的信号之间传递电话信号的电话信号选择滤波器，用于对信号中的电话信号进行相位反转的移相器以及用于组合来自移相器的信号和接收信号的组合器，以及抵消包括在接收信号中的电话信号。

10. 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。

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