公开(公告)号：US20120170853A1

公开(公告)日：2012-07-05

申请号：US13162740

申请日：2011-06-17

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

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

IPC: G06T5/00

CPC classification number: G06T5/006

Abstract: 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.

Abstract translation: 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：US06341147B1

公开(公告)日：2002-01-22

申请号：US09414777

申请日：1999-10-08

Applicant: Sang Soo Oak ,  Woo Jin Song ,  Kwang Chun Lee

Inventor： Sang Soo Oak ,  Woo Jin Song ,  Kwang Chun Lee

IPC: H03D100

CPC classification number: H04L7/0062 ,  H04L7/0334

Abstract: A maximum likelihood timing recovering unit is disclosed, which includes a sampler for over-sampling a matched filtering signal, first and second delay units for sequentially delaying a sampling signal of the sampler, a first decimeter for outputting a decision sample among an output signal of the first delay unit to a symbol decision unit, an adder for adding an output of the sampler and an output of the second delay unit, a multiplier for multiplying a decision symbol ak received in a preamble format and an output signal of the adder, a second decimeter for outputting a certain interval value based on a decision sample position among the output of the multiplier, an accumulator for accumulating the output of the second decimeter at a certain interval, and a voltage adjusting oscillator for providing an oscillation frequency generated using the output of the accumulator as an adjusting voltage to a 2Fs sampling clock signal of the sampler, for thereby recovering an optimum timing using a data over-sampled by adjusting an oscillation speed of a voltage adjusting oscillator by two times.

Abstract translation: 公开了一种最大似然定时恢复单元，其包括用于对匹配滤波信号进行过采样的采样器，用于顺序地延迟采样器的采样信号的第一和第二延迟单元，用于输出采样信号的输出信号 第一延迟单元到符号判定单元，用于将采样器的输出和第二延迟单元的输出相加的加法器，用于将以前导格式接收的判定符号ak和加法器的输出信号相乘的乘法器， 第二分米，用于基于乘法器的输出中的判定取样位置输出一定间隔值;累加器，用于以一定间隔累积第二分米的输出;以及电压调节振荡器，用于提供使用该输出产生的振荡频率 作为调制电压的采样器的2Fs采样时钟信号，从而恢复最佳定时 g通过将电压调节振荡器的振荡速度调整两倍来过采样的数据。

公开(公告)号：US6028646A

公开(公告)日：2000-02-22

申请号：US822656

申请日：1997-03-24

Applicant: Jin Kuk Jeong ,  Woo Jin Song

Inventor： Jin Kuk Jeong ,  Woo Jin Song

IPC: H04N9/68 ,  H04N9/64

CPC classification number: H04N9/646

Abstract: A color image enhancement device for a video display appliance capable of improving the sharpness of the color image using a saturation component. The device includes an RGB (red, green, blue)/saturation conversion section for obtaining a saturation of an image of an RGB color model, a saturation enhancement section for emphasizing a high frequency band of the saturation outputted from the RGB/saturation conversion section to enhance the saturation, and a saturation/RGB conversion section for converting an output of the saturation enhancement section into enhanced color signals.

Abstract translation: 一种用于能够使用饱和分量来提高彩色图像的清晰度的视频显示装置的彩色图​​像增强装置。 该装置包括用于获得RGB颜色模型的图像的饱和度的RGB（红色，绿色，蓝色）/饱和度转换部分，用于强调从RGB /饱和度转换部分输出的饱和高频带的饱和度增强部分 以增强饱和度，以及用于将饱和度增强部分的输​​出转换为增强的彩色信号的饱和度/ RGB转换部分。

公开(公告)号：US4783840A

公开(公告)日：1988-11-08

申请号：US128937

申请日：1987-12-04

Applicant: Woo-Jin Song

Inventor： Woo-Jin Song

IPC: H04N5/225 ,  G06T5/20 ,  G06K9/40 ,  G06K9/44

CPC classification number: G06T5/20

Abstract: An image enhancing process promotes either noise reduction or image sharpening on a pixel-by-pixel basis as a function of the recognition of specific patterns of sampled pixel values surrounding each pixel to be enhanced. The sampled pixel values are divided into two or more subgroups and the enhanced pixel value is provided to promote either image sharpening or noise reduction as a function of the number of pixel values in the different subgroups and their positions relative to each other in the subgroups.

公开(公告)号：US08750641B2

公开(公告)日：2014-06-10

申请号：US13249097

申请日：2011-09-29

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

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

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

CPC classification number: H04N5/217

Abstract: 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.

Abstract translation: 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

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

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

IPC: G06K9/00

CPC classification number: H04N1/58 ,  G06T5/006 ,  G06T2207/10024 ,  H04N5/3572 ,  H04N9/646

Abstract: 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.

Abstract translation: 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：US06836298B2

公开(公告)日：2004-12-28

申请号：US09736194

申请日：2000-12-15

Applicant: Woo Jin Song ,  Kyu Young Hwang ,  Hyun Chool Shin ,  Chung Hee Lee ,  Jong Hwa Kim

Inventor： Woo Jin Song ,  Kyu Young Hwang ,  Hyun Chool Shin ,  Chung Hee Lee ,  Jong Hwa Kim

IPC: H04N323

CPC classification number: H04N17/00 ,  G09G1/00 ,  G09G3/001 ,  G09G3/3413 ,  G09G2320/0693 ,  H04N3/2335 ,  H04N5/74 ,  H04N5/7408 ,  H04N9/28 ,  H04N9/3102

Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.

Abstract translation: 用于校正失真图像的装置和方法能够通过预先输入图像而不使用会聚轭来校正图像的光学失真和失会聚，以及使用其的图像显示器。 用于校正其中输入图像信号以在屏幕上显示图像和图像失真的图像显示器的图像失真的装置被校正，包括：用于产生预定参考图像的参考图像生成器; 用于输入参考图像并拍摄在屏幕上输出的图像的照相机; 以及失真信息提取单元，用于比较从照相机输出的拍摄图像和从参考图像生成器输出的参考图像，并且在图像失真的情况下产生失真校正信息以校正拍摄图像的失真。

公开(公告)号：US08358835B2

公开(公告)日：2013-01-22

申请号：US12615729

申请日：2009-11-10

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

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

IPC: G06K9/00

CPC classification number: H04N1/58 ,  G06T5/006 ,  G06T2207/10024 ,  H04N5/3572 ,  H04N9/646

Abstract: 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.

Abstract translation: 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

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

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

IPC: G06K9/00

CPC classification number: H04N1/40012

Abstract: 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.

Abstract translation: 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：US07271853B2

公开(公告)日：2007-09-18

申请号：US10995337

申请日：2004-11-24

Applicant: Woo Jin Song ,  Kyu Young Hwang ,  Hyun Chool Shin ,  Chung Hee Lee ,  Jong Hwa Kim

Inventor： Woo Jin Song ,  Kyu Young Hwang ,  Hyun Chool Shin ,  Chung Hee Lee ,  Jong Hwa Kim

IPC: H04N3/23 ,  H04N3/22 ,  H04N9/28

CPC classification number: H04N17/00 ,  G09G1/00 ,  G09G3/001 ,  G09G3/3413 ,  G09G2320/0693 ,  H04N3/2335 ,  H04N5/74 ,  H04N5/7408 ,  H04N9/28 ,  H04N9/3102

Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.

Abstract translation: 用于校正失真图像的装置和方法能够通过预先输入图像而不使用会聚轭来校正图像的光学失真和失会聚，以及使用其的图像显示器。 用于校正其中输入图像信号以在屏幕上显示图像和图像失真的图像显示器的图像失真的装置被校正，包括：用于产生预定参考图像的参考图像生成器; 用于输入参考图像并拍摄在屏幕上输出的图像的照相机; 以及失真信息提取单元，用于比较从照相机输出的拍摄图像和从参考图像生成器输出的参考图像，并且在图像失真的情况下产生失真校正信息以校正拍摄图像的失真。