公开(公告)号：US20120033885A1

公开(公告)日：2012-02-09

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 ,  G06K9/00

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。

公开(公告)号：US20090136127A1

公开(公告)日：2009-05-28

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： G06K9/00 ,  G06K9/40

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 。

公开(公告)号：US20100014771A1

公开(公告)日：2010-01-21

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： G06K9/40

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。

公开(公告)号：US20090226083A1

公开(公告)日：2009-09-10

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： G06K9/00 ,  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。

公开(公告)号：US20090083359A1

公开(公告)日：2009-03-26

申请号：US12211375

申请日：2008-09-16

申请人： Kang Joo KIM ,  Bong Soon KANG ,  Won Woo JANG ,  Hyun Soo KIM ,  Won Tae CHOI

发明人： Kang Joo KIM ,  Bong Soon KANG ,  Won Woo JANG ,  Hyun Soo KIM ,  Won Tae CHOI

IPC分类号： G06G7/20

CPC分类号： G06F7/5525

摘要： Provided is a square root calculation apparatus. The apparatus includes a section judgment unit, a coefficient storing unit, and an adder. The section judgment unit stores information regarding a plurality of sections obtained by dividing an entire range of an input value into predetermined intervals, and judges one of the sections to which the input value belongs when the input value is input. The coefficient storing unit stores, in advance, first-order term coefficients and constant terms of first-order approximate equations obtained by approximating square root curves for respective sections, multiplies a first-order term coefficient of the first-order approximate equation in the section to which the input value belongs, by the input value to output a first-order term, and outputs a constant term in the section to which the input value belongs. The adder adds the first-order term and the constant term output from the coefficient storing unit to calculate an approximated square root value.

摘要翻译： 提供了平方根计算装置。 该装置包括部分判断单元，系数存储单元和加法器。 区段判断单元存储关于通过将输入值的整个范围划分为预定间隔而获得的多个区段的信息，并且当输入输入值时判断输入值所属的区域中的一个。 系数存储单元预先存储通过对各个部分近似平方根曲线获得的一阶近似方程的一阶项系数和常数项，将该部分中的一阶近似方程的一阶项系数乘以 输入值所属的输入值输出一阶项，并在输入值所属的部分输出常数项。 加法器将来自系数存储单元的一阶项和常数项输出相加以计算近似的平方根值。

公开(公告)号：US20100150444A1

公开(公告)日：2010-06-17

申请号：US12413935

申请日：2009-03-30

申请人： Joo Hyun KIM ,  Bong Soon KANG ,  Sung Jin LEE ,  Hyo Won JEONG ,  Won Tae CHOI ,  Boo Dong KWAK

发明人： Joo Hyun KIM ,  Bong Soon KANG ,  Sung Jin LEE ,  Hyo Won JEONG ,  Won Tae CHOI ,  Boo Dong KWAK

IPC分类号： G06K9/34

CPC分类号： G06T7/11

摘要： There is provided a method of grouping pixels in a 2D digital image that assigns labels to regions of objects to differentiate between objects separated in the input image and groups a region of an object having the same label into one group when pattern recognition and image process are performed on the 2D digital image. A method of grouping pixels in a 2d digital image according to an aspect of the invention may include: determining whether a target pixel in an input image is included in a labeling section; determining whether the target pixel is connected to a previous pixel of the target pixel and an upper pixel located adjacent to and above the target pixel to perform a labeling process, and renewing a label table while saving a labeling result in a line memory when the target pixel is included in the labeling section and is a valid pixel including object information; and grouping pixels of the input image using the labeling result and the renewed label table, and renewing a group.

摘要翻译： 提供了一种对2D数字图像中的像素进行分组的方法，其将标签分配给对象的区域，以区分输入图像中分离的对象，并且当图案识别和图像处理是图像处理时将具有相同标签的对象的区域组合成一个组 在2D数字图像上执行。 根据本发明的一个方面的对2d数字图像中的像素进行分组的方法可以包括：确定输入图像中的目标像素是否包括在标记部分中; 确定所述目标像素是否连接到所述目标像素的先前像素，以及位于所述目标像素附近并位于所述目标像素之上的上像素，以执行标记处理，以及当所述目标像素保持标记结果保存在行存储器中时，更新标签表 像素包括在标记部分中，并且是包括对象信息的有效像素; 并使用标签结果和更新的标签表对输入图像的像素进行分组，并更新组。

公开(公告)号：US20100013952A1

公开(公告)日：2010-01-21

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

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。

公开(公告)号：US20070114626A1

公开(公告)日：2007-05-24

申请号：US11533084

申请日：2006-09-19

申请人： Shin Jae KANG ,  Won Tae CHOI ,  Joo Yul KO ,  Deuk Hee PARK

发明人： Shin Jae KANG ,  Won Tae CHOI ,  Joo Yul KO ,  Deuk Hee PARK

IPC分类号： H01L27/14

CPC分类号： H01L27/14645 ,  H01L27/14603 ,  H01L27/14647

摘要： The invention relates a photodiode device and a photodiode array using the same capable of detecting short and long wavelengths of visible light at a high efficiency. The photodiode device includes: a first conductivity type semiconductor substrate; a second conductivity type buried layer, an intrinsic semiconductor layer and a first conductivity type semiconductor layer formed on the semiconductor substrate in their order; and a second conductivity type well layer formed on the first conductivity type semiconductor layer. The second conductivity type buried layer, the intrinsic semiconductor layer and the first conductivity type semiconductor layer form a pin junction diode for detecting the long wavelength of visible light, and the first conductivity type semiconductor layer and the second conductivity type well layer form a p-n junction diode for detecting a short wavelength of light.

摘要翻译： 本发明涉及一种能够以高效率检测可见光的短波长和长波长的光电二极管器件和使用该光电二极管器件的光电二极管阵列。 光电二极管装置包括：第一导电型半导体衬底; 第二导电型掩埋层，本征半导体层和形成在半导体衬底上的第一导电类型半导体层; 以及形成在第一导电类型半导体层上的第二导电类型阱层。 第二导电类型掩埋层，本征半导体层和第一导电类型半导体层形成用于检测可见光的长波长的pin结二极管，并且第一导电类型半导体层和第二导电类型阱层形成pn结 用于检测短波长的光的二极管。

公开(公告)号：US20070023612A1

公开(公告)日：2007-02-01

申请号：US11458018

申请日：2006-07-17

申请人： Joo Yul KO ,  Won Tae CHOI ,  Deuk Hee PARK ,  Shin Jae KANG

发明人： Joo Yul KO ,  Won Tae CHOI ,  Deuk Hee PARK ,  Shin Jae KANG

IPC分类号： H01L27/00

CPC分类号： H04N5/3745 ,  H04N5/361

摘要： The invention provides a unit pixel of a CMOS image sensor which compensates for a dark current generated in a photo diode to enhance its driving range. In the unit pixel, a photo diode generates a charge in accordance with a received light amount. A drive has a gate for receiving the charge in the photo diode to output as an electrical signal and a drain to which a power voltage is applied. Also, a saturation detector receives a gate voltage of the drive transistor and judges the drive transistor saturated if an output voltage is smaller than a preset reference voltage. In addition, a switch connects or disconnects between the power voltage and the gate of the drive transistor in response to the judgment of the saturation detector.

摘要翻译： 本发明提供CMOS图像传感器的单位像素，其补偿在光电二极管中产生的暗电流以增强其驱动范围。 在单位像素中，光电二极管根据接收的光量产生电荷。 驱动器具有用于接收光电二极管中的电荷的栅极作为电信号和施加电源电压的漏极输出。 此外，饱和检测器接收驱动晶体管的栅极电压，并且如果输出电压小于预设参考电压，则判断驱动晶体管饱和。 此外，响应于饱和度检测器的判断，开关连接或断开驱动晶体管的电源电压和栅极之间的连接。

公开(公告)号：US20100020192A1

公开(公告)日：2010-01-28

申请号：US12273962

申请日：2008-11-19

申请人： Gyu Won KIM ,  Won Tae CHOI

发明人： Gyu Won KIM ,  Won Tae CHOI

IPC分类号： H04N9/73

CPC分类号： H04N9/735

摘要： There is provided a method of controlling auto white balance that can be appropriately used for a camera of an electric device that uses a wide-angle or a super wide-angle lens. A method of controlling auto white balance according to an aspect of the invention may include: converting a color space of an input image from an RGB color space into a YCbCr color space; dividing the input image into a plurality of divided regions; selecting a predetermined number of divided regions in order determined by mean values of Y of pixels included in the plurality of divided regions; comparing a predetermined threshold value with the number of pixels having values of Cb and Cr within a predetermined Cb-Cr range among the pixels included in the selected divided regions in order to determine a white area; and calculating auto white balance gains by using mean values of Y, mean values of Cb, and mean values of Cr of the pixels included in each of the selected divided regions when the number of pixels within the predetermined Cb-Cr range is greater than the threshold value.

摘要翻译： 提供一种控制自动白平衡的方法，其可以适用于使用广角或超广角镜头的电子设备的照相机。 根据本发明的一个方面的控制自动白平衡的方法可以包括：将输入图像的颜色空间从RGB颜色空间转换成YCbCr颜色空间; 将输入图像分割成多个分割区域; 根据包含在多个分割区域中的像素的Y的平均值确定顺序选择预​​定数量的划分区域; 将预定阈值与包括在所选择的分割区域中的像素之间的预定Cb-Cr范围内的具有Cb和Cr值的像素的数量进行比较以确定白色区域; 以及当所述预定Cb-Cr范围内的像素数目大于所述选定分割区域中的像素数量时，使用包括在所选择的分割区域中的像素的平均值Y，平均值Cb和平均值Cr来计算自动白平衡增益 阈值。