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公开(公告)号：US08675985B2
公开(公告)日：2014-03-18
申请号：US13162740
申请日：2011-06-17
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。
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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。
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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
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。
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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。
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