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21. 发明授权

US08948521B2 Method and apparatus for assessing image quality using quantization codes 有权
标题翻译：使用量化代码评估图像质量的方法和装置
公开(公告)号：US08948521B2
公开(公告)日：2015-02-03
申请号：US13521943
申请日：2011-01-11
申请人： Dong-O Kim , Rae-Hong Park
发明人： Dong-O Kim , Rae-Hong Park
IPC分类号： G06K9/68 , G06T7/00
CPC分类号： G06T7/0002 , G06T2207/30168
摘要： Provided is a method for assessing image quality using quantization codes, which includes: filtering an original image and a distorted image; generating phase quantization codes from the filtering result; calculating a Hamming difference between the phase quantization code of the original image and the phase quantization code of the distorted image; and assessing image quality of the distorted image by using the calculated Hamming difference. According to the present disclosure, since pixel values of the original image and the distorted image are mapped onto a quantized complex plane and then binary code operation is performed, it is possible to easily implement image quality assessing hardware and also ensure excellent image quality assessing performance.
摘要翻译：提供了一种使用量化码来评估图像质量的方法，其包括：对原始图像和失真图像进行滤波; 从滤波结果生成相位量化码; 计算原始图像的相位量化码与失真图像的相位量化码之间的汉明差; 并使用计算的汉明差来评估失真图像的图像质量。根据本公开，由于原始图像和失真图像的像素值被映射到量化复平面上，因此执行二进制代码操作，可以容易地实现图像质量评估硬件并且还确保优异的图像质量评估性能。

22. 发明申请

US20120038800A1 METHOD OF IMAGE PROCESSING AND IMAGE PROCESSING APPARATUS 有权
标题翻译：图像处理和图像处理设备的方法
公开(公告)号：US20120038800A1
公开(公告)日：2012-02-16
申请号：US13031743
申请日：2011-02-22
申请人： Soon-geun Jang , Baek-kyu Kim , Rae-hong Park
发明人： Soon-geun Jang , Baek-kyu Kim , Rae-hong Park
IPC分类号： H04N5/208 , G06K9/40
CPC分类号： H04N1/4092 , G06T5/009 , G06T5/20 , G06T2207/10024 , G06T2207/10144 , G06T2207/20192 , G06T2207/20208 , G06T2207/20221 , H04N1/58 , H04N5/2355
摘要： A method of image processing includes: providing a radiance map, generating a first image in which an edge part is preserved and a flat part is smoothed by applying an edge preservation smoothing filter to the radiance map, generating a second image having a visually perceivable dynamic range by applying a correction curve to the first image, and generating a display image having corrected lightness by adjusting a hue value and a chroma value of the second image.
摘要翻译：一种图像处理方法包括：提供辐射图，生成其中保留边缘部分的第一图像，并通过将边缘保存平滑滤波器应用于辐射图来平滑平坦部分，生成具有视觉可感知动态的第二图像通过对第一图像应用校正曲线，并且通过调整第二图像的色调值和色度值来生成具有校正亮度的显示图像。

23. 发明授权

US07986854B2 Method and apparatus for improving quality of composite video signal and method and apparatus for removing artifact of composite video signal 有权
标题翻译：用于提高复合视频信号质量的方法和装置，以及用于去除复合视频信号伪像的方法和装置
公开(公告)号：US07986854B2
公开(公告)日：2011-07-26
申请号：US11761219
申请日：2007-06-11
申请人： Sung-hee Kim , Seung-Joon Yang , Rae-hong Park , Ji-won Lee , Hyun-seung Lee , Jun-young Kim , Bo-ra Lim
发明人： Sung-hee Kim , Seung-Joon Yang , Rae-hong Park , Ji-won Lee , Hyun-seung Lee , Jun-young Kim , Bo-ra Lim
IPC分类号： G06K9/40
CPC分类号： H04N19/186 , H04N19/51 , H04N19/80 , H04N19/86
摘要： A method of improving picture quality in a composite video burst signal includes dividing the composite video burst signal into a plurality of frequency bands using a low pass filter and a high pass filter, performing wavelet packet filtering of frequency bands including a chrominance signal having energy higher than a specified threshold among the plurality of frequency bands, and performing Wiener filtering of frequency bands including a chrominance signal having energy lower than a specified threshold.
摘要翻译：一种提高复合视频脉冲串信号中的图像质量的方法包括：使用低通滤波器和高通滤波器将复合视频脉冲串信号分成多个频带，对包括能量较高的色度信号的频带进行小波包滤波并且对包括具有低于指定阈值的能量的色度信号的频带进行维纳滤波。

24. 发明申请

US20070291170A1 IMAGE RESOLUTION CONVERSION METHOD AND APPARATUS 审中-公开
标题翻译：图像分辨率转换方法和设备
公开(公告)号：US20070291170A1
公开(公告)日：2007-12-20
申请号：US11760806
申请日：2007-06-11
申请人： Seung-hoon Han , Seung-joon Yang , Rae-hong Park , Jun-yong Kim
发明人： Seung-hoon Han , Seung-joon Yang , Rae-hong Park , Jun-yong Kim
IPC分类号： G06K9/32 , H04N7/01
CPC分类号： G06T3/4084 , G06T7/13 , H04N7/014 , H04N7/0142
摘要： An image resolution conversion method and apparatus based on a projection onto convex sets (POCS) method are provided. The image resolution conversion method comprises detecting an edge region and a direction of the edge region in an input low-resolution image frame in order to generate an edge map and edge direction information, generating a directional point spread function based on the edge map and the edge direction information, interpolating the input low-resolution image frame into a high-resolution image frame, generating a residual term based on the input low-resolution image frame, the high-resolution image frame, and the directional point spread function, and renewing the high-resolution image frame according to a result of comparing the residual term with a threshold.
摘要翻译：提供了一种基于投影到凸集（POCS）方法的图像分辨率转换方法和装置。图像分辨率转换方法包括检测输入低分辨率图像帧中的边缘区域和边缘区域的方向，以便生成边缘图和边缘方向信息，基于边缘图生成定向点扩展函数，边缘方向信息，将输入的低分辨率图像帧内插到高分辨率图像帧中，基于输入的低分辨率图像帧，高分辨率图像帧和方向点扩展函数生成残余项，并且更新根据将剩余项与阈值进行比较的结果的高分辨率图像帧。

25. 发明申请

US20070286523A1 IMAGE PROCESSING METHOD AND APPARATUS FOR CONTRAST ENHANCEMENT 有权
标题翻译：图像处理方法和对比度增强的设备
公开(公告)号：US20070286523A1
公开(公告)日：2007-12-13
申请号：US11760852
申请日：2007-06-11
申请人： Sung-hee KIM , Seung-joon YANG , Rae-hong PARK , Bo-ra LIM
发明人： Sung-hee KIM , Seung-joon YANG , Rae-hong PARK , Bo-ra LIM
IPC分类号： G06K9/40
CPC分类号： G06T5/50 , G06T5/009 , G06T5/40 , G06T2207/20021
摘要： Provided are an image processing method and apparatus for enhancing contrast. The image processing apparatus includes a determination unit that determines whether contrast enhancement processing should be performed on an input image; an intensity mapping unit that generates a plurality of images having different exposure times from the input image, using intensity mapping, if the contrast enhancement processing should be performed on the input image; and an image composition unit that composes the plurality of images into a composed image. Therefore, it is possible to reduce a color change or a false contour phenomenon that are generated in a related art contrast enhancement process.
摘要翻译：提供了一种用于增强对比度的图像处理方法和装置。图像处理装置包括确定单元，其确定是否应当对输入图像执行对比度增强处理; 强度映射单元，如果对输入图像执行对比度增强处理，则使用强度映射来生成具有与输入图像不同的曝光时间的多个图像; 以及将多个图像组成合成图像的图像合成单元。因此，可以减少在相关技术的对比度增强处理中产生的颜色变化或假轮廓现象。

26. 发明申请

US20060269159A1 Method and apparatus for adaptive false contour reduction 有权
标题翻译：用于自适应假轮廓降低的方法和装置
公开(公告)号：US20060269159A1
公开(公告)日：2006-11-30
申请号：US11330055
申请日：2006-01-12
申请人： Jae-Seung Kim , Wonseok Ahn , Rae-Hong Park , Bo Lim , Ji Lee
发明人： Jae-Seung Kim , Wonseok Ahn , Rae-Hong Park , Bo Lim , Ji Lee
IPC分类号： G06K9/42
CPC分类号： G06T5/002 , G06T5/20 , G06T5/50 , G06T7/12 , G06T2207/20012 , G06T2207/20192
摘要： A method for adaptive false contour reduction includes: detecting contour location information by removing a flat region having certain brightness values from a first input image based on a bright value difference between the first input image and a second input image with a bit depth of the first input image reduced; detecting false-contour direction and location information by measuring directional contrast of the flat region-removed first image, and distinguishing the false contour area and an edge area out of the false contour location information based on the measured contrast; and smoothing the false contour area by using the false contour direction and location information, and removing the false contour from the first input image. Thus, a flat region can be automatically removed by using a brightness value difference between a bit depth-reduced image and an original input image and detect a false contour, thereby enhancing a precision degree of false contour detection. Further, signal components can be prevented from being degraded by performing smoothing over only a false contour.
摘要翻译：一种用于自适应假轮廓降低的方法包括：通过基于第一输入图像和第二输入图像之间的亮度值从第一输入图像中去除具有特定亮度值的平坦区域来检测轮廓位置信息，其中第一输入图像减少; 通过测量平坦区域去除的第一图像的方向对比度来检测假轮廓方向和位置信息，并且基于测量的对比来区分假轮廓位置信息中的假轮廓区域和边缘区域; 以及通过使用所述假轮廓方向和位置信息来平滑所述假轮廓区域，以及从所述第一输入图像中去除所述假轮廓。因此，可以通过使用位深度缩小图像和原始输入图像之间的亮度值差来自动去除平坦区域，并检测假轮廓，从而提高伪轮廓检测的精确度。此外，通过仅对假轮廓进行平滑，可以防止信号分量的劣化。

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