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。

公开(公告)号：US08111301B2

公开(公告)日：2012-02-07

申请号：US12123900

申请日：2008-05-20

申请人： Joo Hyun Kim ,  Bong Soon Kang ,  Kyoung Soo Son ,  Won Tae Choi ,  Boo Dong Kwak

发明人： Joo Hyun Kim ,  Bong Soon Kang ,  Kyoung Soo Son ,  Won Tae Choi ,  Boo Dong Kwak

IPC分类号： H04N9/73 ,  G06K9/00

CPC分类号： H04N9/735

摘要： There is provided a method of performing auto white balance including: setting a plurality of sections of a whole range of a value of each of Y, Cb, and Cr in the YCbCr color space, according to a size of each value; calculating an accumulated Y, Cb, and Cr value of pixels included in each of the plurality of sections; determining effective sections according to the number of the pixels included in each of the plurality of sections; calculating a mean Y, Cb, and Cr value of pixels included in all of the effective sections by using the accumulated Y, Cb, and Cr value of each of the effective sections; calculating a mean RGB value by converting the mean Y, Cb, and Cr value into an RGB color space; and determining an RGB color gain of a Bayer image outputted from an image sensor by using the mean RGB value.

摘要翻译： 提供了一种执行自动白平衡的方法，包括：根据每个值的大小，在YCbCr颜色空间中设置Y，Cb和Cr各自的值的整个范围的多个部分; 计算包括在所述多个部分中的每一个中的像素的累积Y，Cb和Cr值; 根据包括在所述多个部分中的每个部分中的像素的数量来确定有效部分; 通过使用每个有效部分的累积Y，Cb和Cr值来计算包括在所有有效部分中的像素的平均值Y，Cb和Cr值; 通过将平均值Y，Cb和Cr值转换成RGB颜色空间来计算平均RGB值; 以及通过使用平均RGB值来确定从图像传感器输出的拜耳图像的RGB色彩增益。

公开(公告)号：US20090147099A1

公开(公告)日：2009-06-11

申请号：US12123900

申请日：2008-05-20

申请人： Joo Hyun KIM ,  Bong Soon Kang ,  Kyoung Soo Son ,  Won Tae Choi ,  Boo Dong Kwak

发明人： Joo Hyun KIM ,  Bong Soon Kang ,  Kyoung Soo Son ,  Won Tae Choi ,  Boo Dong Kwak

IPC分类号： H04N9/73

CPC分类号： H04N9/735

摘要： There is provided a method of performing auto white balance including: setting a plurality of sections of a whole range of a value of each of Y, Cb, and Cr in the YCbCr color space, according to a size of each value; calculating an accumulated Y, Cb, and Cr value of pixels included in each of the plurality of sections; determining effective sections according to the number of the pixels included in each of the plurality of sections; calculating a mean Y, Cb, and Cr value of pixels included in all of the effective sections by using the accumulated Y, Cb, and Cr value of each of the effective sections; calculating a mean RGB value by converting the mean Y, Cb, and Cr value into an RGB color space; and determining an RGB color gain of a Bayer image outputted from an image sensor by using the mean RGB value.

摘要翻译： 提供了一种执行自动白平衡的方法，包括：根据每个值的大小，在YCbCr颜色空间中设置Y，Cb和Cr各自的值的整个范围的多个部分; 计算包括在所述多个部分中的每一个中的像素的累积Y，Cb和Cr值; 根据包括在所述多个部分中的每个部分中的像素的数量来确定有效部分; 通过使用每个有效部分的累积Y，Cb和Cr值来计算包括在所有有效部分中的像素的平均值Y，Cb和Cr值; 通过将平均值Y，Cb和Cr值转换成RGB颜色空间来计算平均RGB值; 以及通过使用平均RGB值来确定从图像传感器输出的拜耳图像的RGB色彩增益。

公开(公告)号：US08275202B2

公开(公告)日：2012-09-25

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： G06K9/00

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：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 。

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。

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。

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。

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。

公开(公告)号：US20100150440A1

公开(公告)日：2010-06-17

申请号：US12476516

申请日：2009-06-02

申请人： Boo Dong KWAK ,  Bong Soon Kang ,  Hyun Soo Kim ,  Won Woo Jang ,  Kyung Rin Kim ,  Won Tae Choi ,  Joo Young Ha

发明人： Boo Dong KWAK ,  Bong Soon Kang ,  Hyun Soo Kim ,  Won Woo Jang ,  Kyung Rin Kim ,  Won Tae Choi ,  Joo Young Ha

IPC分类号： G06K9/40

CPC分类号： G06T3/4015 ,  G06T3/403 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N9/045 ,  H04N2209/046

摘要： A color interpolation apparatus includes: a threshold value determining unit that calculates a luminance value of each of a plurality of areas set based on each pixel of a bayer pattern image generated by an image sensor, and determines edge determining threshold values used for determining each edge of the set areas; an edge information calculating unit that calculates pixel value variations in multiple directions of horizontal, vertical, diagonal, and central directions of the corresponding set areas by using pixel values of pixels included in each set area, and calculates edge information regarding each set area by using the calculated multi-directional pixel value variations; an area determining unit that determines a type of an edge present in each set area by using the edge determining threshold values deterred by the threshold value determining unit and the edge information calculated by the edge information calculating unit; and a color interpolation unit that applies a color interpolation filter previously set according to the edge types to a corresponding set area according to the edge types determined for each region set by the area determining unit.

摘要翻译： 颜色插值装置包括：阈值确定单元，其基于由图像传感器生成的拜耳图案图像的每个像素计算多个区域中的每个区域的亮度值，并且确定用于确定每个边缘的边缘确定阈值 的区域; 边缘信息计算单元，通过使用包括在每个设置区域中的像素的像素值来计算相应设置区域的水平，垂直，对角线和中心方向的多个方向的像素值变化，并且通过使用 计算出的多方向像素值变化; 区域确定单元，其通过使用由阈值确定单元阻止的边缘确定阈值和由边缘信息计算单元计算的边缘信息来确定存在于每个设置区域中的边缘的类型; 以及颜色插值单元，其根据由区域确定单元设置的每个区域确定的边缘类型，将根据边缘类型预先设置的颜色插值滤波器应用于相应的设置区域。