公开(公告)号：US08750641B2

公开(公告)日：2014-06-10

申请号：US13249097

申请日：2011-09-29

申请人： Moon Kyu Song ,  Hyun Woong Cho ,  Byoung Kwang Kim ,  Woo Jin Song

发明人： Moon Kyu Song ,  Hyun Woong Cho ,  Byoung Kwang Kim ,  Woo Jin Song

IPC分类号： G06K9/40 ,  G06K9/36 ,  G06K9/20 ,  H04N5/76

CPC分类号： H04N5/217

摘要： Provided are an apparatus and method for correcting distortion of an image. The method includes finding center point vectors including lens distortion center information about an image and dividing the image into at least two blocks on the basis of the center point vectors, and determining representative directions of the at least two divided blocks and removing outlier vectors not indicating the representative directions from the blocks to estimate a lens distortion center. Accordingly, accurate image correction is enabled by estimating distortion centers of images generated by devices equipped with any lens. Also, image content improving lens distortion correction performance is differentiated from image content degrading the same by picking out image content improving lens distortion center estimation performance, so that a superior image correction effect to other image correction techniques can be obtained.

摘要翻译： 提供了一种用于校正图像的失真的装置和方法。 该方法包括找到包括关于图像的透镜失真中心信息的中心点矢量，并且基于中心点矢量将图像划分成至少两个块，以及确定至少两个划分的块的代表方向，并且去除不指示 来自块的代表方向来估计镜头变形中心。 因此，通过估计由配备有任何透镜的装置产生的图像的失真中心来实现精确的图像校正。 此外，通过选择提高透镜畸变中心估计性能的图像内容，使得图像内容改善透镜失真校正性能与使其劣化的图像内容不同，从而可以获得对其他图像校正技术的优异的图像校正效果。

公开(公告)号：US20100166305A1

公开(公告)日：2010-07-01

申请号：US12615729

申请日：2009-11-10

申请人： Woo-Jin Song ,  Soon-Wook Chung ,  Byoung-Kwang Kim

发明人： Woo-Jin Song ,  Soon-Wook Chung ,  Byoung-Kwang Kim

IPC分类号： G06K9/00

CPC分类号： H04N1/58 ,  G06T5/006 ,  G06T2207/10024 ,  H04N5/3572 ,  H04N9/646

摘要： A method for detecting and correcting a chromatic aberration, and an apparatus and method for processing an image using the same are provided. A chromatic aberration is detected by dividing an edge portion of the image into static areas where a color varies below a reference value and a dynamic area where a color varies above the reference value, calculating a intensity difference value between at least one reference color and a comparative color for each of the static areas and the dynamic area, and determining at least one pixel having a intensity difference value exceeding a range of intensity difference values in the static areas among pixels in the dynamic area, as a chromatic aberration region. The chromatic aberration is corrected by correcting the intensity difference value for the pixels in the chromatic aberration region using a correction value in the intensity difference value range in the static area.

摘要翻译： 提供了一种用于检测和校正色差的方法，以及一种用于处理使用其的图像的设备和方法。 通过将图像的边缘部分分割成颜色变化低于参考值的静态区域和颜色变化高于参考值的动态区域来检测色差，计算至少一个参考颜色和 作为每个静态区域和动态区域的比较颜色，并且确定具有超过动态区域的像素之间的静态区域中的强度差值的强度差值的至少一个像素作为色差区域。 通过使用静态区域中的强度差值范围内的校正值来校正色差区域中的像素的强度差值来校正色像差。

公开(公告)号：US20120170865A1

公开(公告)日：2012-07-05

申请号：US13249097

申请日：2011-11-17

申请人： Moon Kyu Song ,  Hyun Woong Cho ,  Byoung Kwang Kim ,  Woo Jin Song

发明人： Moon Kyu Song ,  Hyun Woong Cho ,  Byoung Kwang Kim ,  Woo Jin Song

IPC分类号： G06K9/40

CPC分类号： H04N5/217

摘要： Provided are an apparatus and method for correcting distortion of an image. The method includes finding center point vectors including lens distortion center information about an image and dividing the image into at least two blocks on the basis of the center point vectors, and determining representative directions of the at least two divided blocks and removing outlier vectors not indicating the representative directions from the blocks to estimate a lens distortion center. Accordingly, accurate image correction is enabled by estimating distortion centers of images generated by devices equipped with any lens. Also, image content improving lens distortion correction performance is differentiated from image content degrading the same by picking out image content improving lens distortion center estimation performance, so that a superior image correction effect to other image correction techniques can be obtained.

摘要翻译： 提供了一种用于校正图像的失真的装置和方法。 该方法包括找到包括关于图像的透镜失真中心信息的中心点矢量，并且基于中心点矢量将图像划分成至少两个块，以及确定至少两个划分的块的代表方向，并且去除不指示 来自块的代表方向来估计镜头变形中心。 因此，通过估计由配备有任何透镜的装置产生的图像的失真中心来实现精确的图像校正。 此外，通过选择提高透镜畸变中心估计性能的图像内容，使得图像内容改善透镜失真校正性能与使其劣化的图像内容不同，从而可以获得对其他图像校正技术的优异的图像校正效果。

公开(公告)号：US20100208985A1

公开(公告)日：2010-08-19

申请号：US12615773

申请日：2009-11-10

申请人： Tae-Hee Lee ,  Byoung-Kwang Kim ,  Woo-Jin Song

发明人： Tae-Hee Lee ,  Byoung-Kwang Kim ,  Woo-Jin Song

IPC分类号： G06K9/00

CPC分类号： H04N1/40012

摘要： A method and apparatus for processing an image to create a grayscale image are provided. The method includes converting, in a color image consisting of a plurality of pixels, a pixel value of each pixel in a RGB color space into a pixel value in a new color space through color space conversion, extracting color information using the pixel value in the new color space, calculating a luminance change amount of each pixel using the extracted color information, calculating a luminance value for the grayscale image by combining an original luminance value of each pixel and the luminance change amount, and creating the grayscale image according to the calculated luminance value. In converting color image into grayscale image and representing the grayscale image, the luminance change amount is set according to a property of each color perceived by humans and added to original luminance value, thereby explicitly discriminating among objects.

摘要翻译： 提供了一种用于处理图像以创建灰度图像的方法和装置。 该方法包括：通过颜色空间转换将RGB颜色空间中的每个像素的像素值在多个像素组成的彩色图像中转换为新颜色空间中的像素值，使用图像中的像素值提取颜色信息 使用所提取的颜色信息计算每个像素的亮度变化量，通过组合每个像素的原始亮度值和亮度变化量来计算灰度级图像的亮度值，以及根据计算出的每个像素的灰度图像来创建灰度图像 亮度值。 在将彩色图像转换为灰度图像并表示灰度图像时，根据人感知的每种颜色的属性来设置亮度变化量，并将其添加到原始亮度值，从而明确地区分对象。

公开(公告)号：US08675985B2

公开(公告)日：2014-03-18

申请号：US13162740

申请日：2011-06-17

申请人： Woo-Jin Song ,  Hyun Woong Cho ,  Moon Kyu Song ,  Byoung-kwang Kim ,  Soon-Wook Chung

发明人： Woo-Jin Song ,  Hyun Woong Cho ,  Moon Kyu Song ,  Byoung-kwang Kim ,  Soon-Wook Chung

IPC分类号： G06K9/40 ,  G06K9/48 ,  H04N9/04

CPC分类号： G06T5/006

摘要： Provided are an apparatus and method for processing an image. The apparatus includes a detector configured to form one group with pieces of pixel information on an edge of a received image, detect line segments, and generate a plurality of curves using the detected line segments, an optimizer configured to apply a weight to a cost function based on the plurality of generated curves according to distance from the center of the image, define a curve having a shorter length than a threshold value as an outlier and a curve having a greater length than the threshold value as an inlier, remove the outlier, and estimate a distortion level parameter, and a corrector configured to correct a position of a pixel with a correction value using the distortion level parameter. Accordingly, it is possible to correct lens distortion of even an image that has not been directly photographed, and to correct images generated by devices equipped with any lens rather than a specific camera or photographing apparatus.

摘要翻译： 提供了一种用于处理图像的装置和方法。 该装置包括检测器，其被配置为在接收图像的边缘上形成一组像素信息，检测线段，并且使用检测到的线段生成多条曲线;优化器，被配置为向成本函数 基于根据距离图像中心的距离的多个生成的曲线，将具有比阈值更短的长度的曲线定义为离群值，并且将具有比阈值更大的长度的曲线作为变换器，去除离群值， 并估计失真水平参数，以及校正器，被配置为使用失真水平参数校正具有校正值的像素的位置。 因此，即使是没有直接拍摄的图像，也可以校正透镜失真，并且校正由配备有任何透镜的装置产生的图像，而不是特定的照相机或拍摄装置。

公开(公告)号：US08358835B2

公开(公告)日：2013-01-22

申请号：US12615729

申请日：2009-11-10

申请人： Woo-Jin Song ,  Soon-Wook Chung ,  Byoung-Kwang Kim

发明人： Woo-Jin Song ,  Soon-Wook Chung ,  Byoung-Kwang Kim

IPC分类号： G06K9/00

CPC分类号： H04N1/58 ,  G06T5/006 ,  G06T2207/10024 ,  H04N5/3572 ,  H04N9/646

摘要： A method for detecting and correcting a chromatic aberration, and an apparatus and method for processing an image using the same are provided. A chromatic aberration is detected by dividing an edge portion of the image into static areas where a color varies below a reference value and a dynamic area where a color varies above the reference value, calculating a intensity difference value between at least one reference color and a comparative color for each of the static areas and the dynamic area, and determining at least one pixel having a intensity difference value exceeding a range of intensity difference values in the static areas among pixels in the dynamic area, as a chromatic aberration region. The chromatic aberration is corrected by correcting the intensity difference value for the pixels in the chromatic aberration region using a correction value in the intensity difference value range in the static area.

摘要翻译： 提供了一种用于检测和校正色差的方法，以及一种用于处理使用其的图像的设备和方法。 通过将图像的边缘部分分割成颜色变化低于参考值的静态区域和颜色变化高于参考值的动态区域来检测色差，计算至少一个参考颜色和 作为每个静态区域和动态区域的比较颜色，并且确定具有超过动态区域的像素之间的静态区域中的强度差值的强度差值的至少一个像素作为色差区域。 通过使用静态区域中的强度差值范围内的校正值来校正色差区域中的像素的强度差值来校正色像差。

公开(公告)号：US08345967B2

公开(公告)日：2013-01-01

申请号：US12615773

申请日：2009-11-10

申请人： Tae-Hee Lee ,  Byoung-Kwang Kim ,  Woo-Jin Song

发明人： Tae-Hee Lee ,  Byoung-Kwang Kim ,  Woo-Jin Song

IPC分类号： G06K9/00

CPC分类号： H04N1/40012

摘要： A method and apparatus for processing an image to create a grayscale image are provided. The method includes converting, in a color image consisting of a plurality of pixels, a pixel value of each pixel in a RGB color space into a pixel value in a new color space through color space conversion, extracting color information using the pixel value in the new color space, calculating a luminance change amount of each pixel using the extracted color information, calculating a luminance value for the grayscale image by combining an original luminance value of each pixel and the luminance change amount, and creating the grayscale image according to the calculated luminance value. In converting color image into grayscale image and representing the grayscale image, the luminance change amount is set according to a property of each color perceived by humans and added to original luminance value, thereby explicitly discriminating among objects.

摘要翻译： 提供了一种用于处理图像以创建灰度图像的方法和装置。 该方法包括：通过颜色空间转换将RGB颜色空间中的每个像素的像素值在多个像素组成的彩色图像中转换为新颜色空间中的像素值，使用图像中的像素值提取颜色信息 使用所提取的颜色信息计算每个像素的亮度变化量，通过组合每个像素的原始亮度值和亮度变化量来计算灰度级图像的亮度值，以及根据计算出的每个像素的灰度图像来创建灰度图像 亮度值。 在将彩色图像转换为灰度图像并表示灰度图像时，根据人感知的每种颜色的属性来设置亮度变化量，并将其添加到原始亮度值，从而明确地区分对象。

公开(公告)号：US20120170853A1

公开(公告)日：2012-07-05

申请号：US13162740

申请日：2011-06-17

申请人： Woo Jin Song ,  Hyun Woong Cho ,  Moon Kyu Song ,  Byoung Kwang Kim

发明人： Woo Jin Song ,  Hyun Woong Cho ,  Moon Kyu Song ,  Byoung Kwang Kim

IPC分类号： G06T5/00

CPC分类号： G06T5/006

摘要： Provided are an apparatus and method for processing an image. The apparatus includes a detector configured to form one group with pieces of pixel information on an edge of a received image, detect line segments, and generate a plurality of curves using the detected line segments, an optimizer configured to apply a weight to a cost function based on the plurality of generated curves according to distance from the center of the image, define a curve having a shorter length than a threshold value as an outlier and a curve having a greater length than the threshold value as an inlier, remove the outlier, and estimate a distortion level parameter, and a corrector configured to correct a position of a pixel with a correction value using the distortion level parameter. Accordingly, it is possible to correct lens distortion of even an image that has not been directly photographed, and to correct images generated by devices equipped with any lens rather than a specific camera or photographing apparatus.

摘要翻译： 提供了一种用于处理图像的装置和方法。 该装置包括检测器，其被配置为在接收图像的边缘上形成一组像素信息，检测线段，并且使用检测到的线段生成多条曲线;优化器，被配置为向成本函数 基于根据距离图像中心的距离的多个生成的曲线，将具有比阈值更短的长度的曲线定义为离群值，并且将具有比阈值更大的长度的曲线作为变换器，去除离群值， 并估计失真水平参数，以及校正器，被配置为使用失真水平参数校正具有校正值的像素的位置。 因此，即使是没有直接拍摄的图像，也可以校正透镜失真，并且校正由配备有任何透镜的装置产生的图像，而不是特定的照相机或拍摄装置。