专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US07098957B2 Method and apparatus for detecting repetitive motion in an interlaced video sequence apparatus for processing interlaced video signals 失效
公开(公告)号：US07098957B2
公开(公告)日：2006-08-29
申请号：US10002915
申请日：2001-10-23
申请人： Yeong-Taeg Kim , Shin-Haeng Kim
发明人： Yeong-Taeg Kim , Shin-Haeng Kim
IPC分类号： H04N5/14 , H04N7/01 , H04N9/64 , H04N11/20
CPC分类号： H04N5/144 , H04N7/012 , H04N7/0137
摘要： Interlaced video signals are processed by mixing spatially interpolated video signals with temporally interpolated video signals. The respectively interpolated signals are mixed in dependence on a degree of motion at the given location in the video picture, as defined by a motion decision parameter. In order to dependably determine whether motion is to be taken into account in a current frame, motion decisions of previous frames are taken into account. That is, to define the motion decision parameter and to exclude false determinations, the motion decision parameter is computed recursively, by taking into account motion decision parameters of the associated previous fields.

82. 发明授权

US07095445B2 Method of detecting motion in an interlaced video sequence based on logical operation on linearly scaled motion information and motion detection apparatus 失效
公开(公告)号：US07095445B2
公开(公告)日：2006-08-22
申请号：US10001676
申请日：2001-10-23
申请人： Yeong-Taeg Kim , Shin-Haeng Kim
发明人： Yeong-Taeg Kim , Shin-Haeng Kim
IPC分类号： H04N5/14 , H04N7/01 , H04N9/64 , H04N11/20
CPC分类号： H04N5/144 , H04N7/012 , H04N7/0137
摘要： A motion decision value provides a dependable estimate whether motion occurs in a given region of a video image in an interlaced video sequence. The motion detection is particularly applicable in the conversion from interlaced video to progressive video. An input first is fed to an absolute value former which computes a frame difference signal from a difference between the first field and the second field in one frame. A point-wise motion detection in the frame difference signal is then followed by a region-wise motion detection that combines the point-wise motion detection signal with an adjacent point-wise motion detection signal delayed by one field. The motion decision value is then computed from the region-wise motion detection signal and output for further processing in the video signal processing system, such as for choosing whether the spatially interpolated video signal value or the temporally interpolated video signal value should be used for the output.

83. 发明授权

US07072928B2 Device for determining the rank of a sample, an apparatus for determining the rank of a plurality of samples, and the ith rank ordered filter 失效
公开(公告)号：US07072928B2
公开(公告)日：2006-07-04
申请号：US10954553
申请日：2004-09-30
申请人： Yeong-Taeg Kim
发明人： Yeong-Taeg Kim
IPC分类号： G06F17/10
CPC分类号： G06F7/026 , H03H17/0263
摘要： A rank-determining device determines the rank of a particular sample value from a set of digital sample values by utilizing two different thresholders that are implemented by comparators. The rank of the sample value is decomposed by thresholding the sample value with all of the sample values in the set of digital sample values, and in this manner eliminates the necessity of a sorting operation. This decomposition of the rank will is referred to as self-threshold decomposition. A plurality of these rank-determining devices can be combined to form a rank determining apparatus in order to find the rank of each one of the digital samples in the set of digital samples. Because the rank-determining apparatus implements self-threshold decomposition, rank- and order-statistic based filters, such as the median filter, can be realized in a feasible manner.

84. 发明申请

US20060139494A1 Method of temporal noise reduction in video sequences 审中-公开
标题翻译：视频序列中时间噪声降低的方法
公开(公告)号：US20060139494A1
公开(公告)日：2006-06-29
申请号：US11025173
申请日：2004-12-29
申请人： Zhi Zhou , Yeong-Taeg Kim
发明人： Zhi Zhou , Yeong-Taeg Kim
IPC分类号： H04N5/21 , H04N5/14
CPC分类号： H04N5/144 , H04N5/145 , H04N5/21
摘要： A motion-adaptive temporal noise reducing method and system for reducing noise in a sequence of video frames is provided. Temporal noise reduction is applied to two video frames, wherein one video frame is the current input noisy frame, and the other video frame is a previous filtered frame stored in memory. Once the current frame is filtered, it is saved into memory for filtering the next incoming frame. A motion-adaptive temporal filtering method is applied for noise reduction. Pixel-wise motion information between the current frame and the previous (filtered) frame in memory is examined. Then the pixels in the current frame are classified into motion region and non-motion region relative to the previous (filtered) frame. In a non-motion region, pixels in the current frame are filtered along the temporal axis. In a motion region, the temporal filter is switched off to avoid motion blurring.
摘要翻译：提供了一种用于降低视频帧序列中的噪声的运动自适应时间噪声降低方法和系统。时间噪声降低被应用于两个视频帧，其中一个视频帧是当前输入噪声帧，而另一个视频帧是存储在存储器中的先前滤波的帧。一旦当前帧被过滤，它被保存到存储器中，用于过滤下一个传入帧。运动自适应时间滤波方法被应用于降噪。检查存储器中当前帧与先前（滤波）帧之间的像素运动信息。然后，当前帧中的像素相对于先前（滤波）的帧被分类为运动区域和非运动区域。在非运动区域中，当前帧中的像素沿着时间轴被滤波。在运动区域中，关闭时间滤波器以避免运动模糊。

85. 发明申请

US20060132498A1 Methods of suppressing ringing artifact of decompressed images 失效
公开(公告)号：US20060132498A1
公开(公告)日：2006-06-22
申请号：US11353847
申请日：2006-02-13
申请人： Yeong-Taeg Kim
发明人： Yeong-Taeg Kim
IPC分类号： G09G5/00
CPC分类号： H04N5/21 , G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , G09G5/00 , G09G2320/02 , H04N19/117 , H04N19/136 , H04N19/176
摘要： A suppression method that provides adaptive (i.e., selective) processing of an input picture to generate an enhanced output picture with ringing-like areas of the input picture suppressed. For each such window in the input picture, if the window is detected as around a ringing-like area in the picture, then the output pixel for the position of the window comprises the low-pass filtered (i.e., smoothed) pixel in the input picture. However, if the window is not detected as around a ringing-like area (i.e., the window is around a non-ringing-like area) then the output pixel for the position of the window comprises essentially the unchanged window in the input picture. As a result no blurring is introduced into the input picture in areas where ringing-like patterns are not detected. Therefore, the output picture includes portions of the input picture in which ringing-like patterns were not detected, and portions of the input picture with suppressed ringing-like patterns where detected. The output picture is an enhanced version of the input picture with suppressed (i.e., smoothed) ringing-like patterns.

86. 发明授权

US07035481B2 Apparatus and method for line interpolating of image signal 失效
公开(公告)号：US07035481B2
公开(公告)日：2006-04-25
申请号：US10237935
申请日：2002-09-10
申请人： Shin-Haeng Kim , Yeong-taeg Kim
发明人： Shin-Haeng Kim , Yeong-taeg Kim
IPC分类号： G06K9/32 , G06K9/36
CPC分类号： H04N7/012 , G06T3/403
摘要： An apparatus and method for interpolating lines of input image signal. The apparatus has a detection unit for detecting a directional characteristic and an angle with respect to a horizontal direction of a sampled edge component obtained by sampling the edge component of an upper horizontal line and a lower horizontal line in an area around a pixel to be interpolated; a judgment unit for judging whether an error is generated based on the directional characteristic and the angle detected by the detection unit and an average value of pixels corresponding to the directional characteristic and the angle; and an image signal generation unit for generating a line interpolated image signal by line interpolating an input image signal, according to a result judged by the judgment unit.

87. 发明申请

US20060013503A1 Methods of preventing noise boost in image contrast enhancement 审中-公开
标题翻译：防止图像对比度增强中的噪声提升的方法
公开(公告)号：US20060013503A1
公开(公告)日：2006-01-19
申请号：US10892775
申请日：2004-07-16
申请人： Yeong-Taeg Kim
发明人： Yeong-Taeg Kim
IPC分类号： G06K9/36
CPC分类号： G06T5/002 , G06T5/009 , G06T5/40 , G06T2207/10016
摘要： An adaptive contrast enhancement method and device provide video signal contrast enhancement with reduced noise amplification. The video signal has a plurality of temporally ordered digital pictures, each one of the digital pictures represented by a set of samples, wherein each one of the samples has a gradation level. A contrast enhancement transform is constructed for enhancing the contrast of the video signal, and transform ratios are computed based on the contrast enhancement transform. Then the smoothed transform ratios are then applied to a set of samples representing a digital picture to enhance contrast of the digital picture with reduced noise amplification.
摘要翻译：自适应对比度增强方法和装置提供了具有减少的噪声放大的视频信号对比度增强。视频信号具有多个时间排列的数字图像，每个数字图像由一组样本表示，其中每个样本具有灰度级。构造对比度增强变换以增强视频信号的对比度，并且基于对比度增强变换来计算变换比。然后将平滑的变换比率应用于表示数字图像的一组采样，以增强数字图像与降低的噪声放大的对比度。

88. 发明申请

US20050094889A1 Global and local statistics controlled noise reduction system 失效
标题翻译：全球和地方统计控制降噪系统
公开(公告)号：US20050094889A1
公开(公告)日：2005-05-05
申请号：US10697362
申请日：2003-10-30
申请人： Peng Lin , Yeong-Taeg Kim
发明人： Peng Lin , Yeong-Taeg Kim
IPC分类号： H04N5/21 , G06K9/40 , G06T5/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/10016 , G06T2207/20008 , G06T2207/20012 , G06T2207/20192
摘要： A global and local statistics controlled noise reduction system in which the video image noise reduction processing is effectively adaptive to both image local structure and global noise level. A noise estimation method provides reliable global noise statistics to the noise reduction system. The noise reduction system dynamically/adaptively configures a local filter for processing each image pixel, and processes the pixel with that local filter. The filtering process of the noise reduction system is controlled by both global and local image statistics that are also computed by the system.
摘要翻译：一种全局和局部统计控制噪声降低系统，其中视频图像降噪处理有效地适应图像局部结构和全局噪声水平。噪声估计方法为噪声降低系统提供可靠的全局噪声统计。降噪系统动态/自适应地配置本地滤波器以处理每个图像像素，并且使用该局部滤波器处理该像素。降噪系统的滤波过程由系统计算的全局和局部图像统计控制。

89. 发明申请

US20050094877A1 Method and apparatus for detecting the location and luminance transition range of slant image edges 失效
标题翻译：用于检测倾斜图像边缘的位置和亮度转变范围的方法和装置
公开(公告)号：US20050094877A1
公开(公告)日：2005-05-05
申请号：US10697361
申请日：2003-10-30
申请人： Xianglin Wang , Yeong-Taeg Kim
发明人： Xianglin Wang , Yeong-Taeg Kim
IPC分类号： H04N5/208 , G06K9/00 , G06K9/48 , G06T5/00 , H04N5/14
CPC分类号： H04N5/142 , G06T7/12 , G06T7/97 , G06T2207/10016
摘要： A system that detects the location as well as the luminance transition range of slant image edge in a digital image. The variance value of the pixels inside a rectangular image window centered with a current pixel is checked to determine if the current pixel is in an edge region or a in non-edge region. If the current pixel is in a non-edge region, no further checking is performed. Otherwise, it is determined if the current pixel is a center pixel in a luminance transition range of a slant edge. The values of the current pixel and its neighboring pixels inside the rectangular window are used to determine if the selected pixel is the center pixel in a luminance transition range of a slant edge. If it is, then the exact length of the luminance transition range of the slant edge is determined. Through such a detection process, both the center position and the luminance transition range of slant image edge can be determined.
摘要翻译：检测数字图像中倾斜图像边缘的位置以及亮度转变范围的系统。检查以当前像素为中心的矩形图像窗口内的像素的方差值，以确定当前像素是处于边缘区域还是非边缘区域。如果当前像素处于非边缘区域，则不进行进一步的检查。否则，确定当前像素是否是倾斜边缘的亮度转变范围中的中心像素。使用矩形窗口内的当前像素及其相邻像素的值来确定所选择的像素是否是倾斜边缘的亮度转变范围中的中心像素。如果是，则确定倾斜边缘的亮度转变范围的确切长度。通过这样的检测处理，可以确定倾斜图像边缘的中心位置和亮度转变范围。

90. 发明申请

US20050078223A1 Method for tracking the disappearance of detected logos within digital video signals 失效
标题翻译：跟踪数字视频信号中检测到的标志消失的方法
公开(公告)号：US20050078223A1
公开(公告)日：2005-04-14
申请号：US10682315
申请日：2003-10-09
申请人： Shan Liu , Yeong-Taeg Kim
发明人： Shan Liu , Yeong-Taeg Kim
IPC分类号： H04N7/025 , G06K9/32 , H04N5/14 , H04N7/26
CPC分类号： H04N19/137 , G06K9/325 , H04N19/17 , H04N19/87
摘要： A method and system for sensing disappearance of the previously detected logos in noisy digital video signals. When a video program starts, a short period of time is allowed to initially detect the existence and the location of the logo within the incoming video frames. Once the logo is detected and a logo map is generated, logo tracking senses whether the logo remains in, or disappears from, the video frames. If the logo moves or (partially) changes its intensity, color, pattern, etc., it will be sensed as having disappeared altogether.
摘要翻译：一种用于在噪声数字视频信号中感测先前检测到的标识消失的方法和系统。当视频节目开始时，允许短时间来初始地检测在输入视频帧内的标识的存在和位置。一旦检测到徽标，并且生成了标志图，标识跟踪就会检测标识是否保留在视频帧中或从视频帧中消失。如果标志移动或（部分地）改变它的强度，颜色，图案等，它将被感觉到完全消失。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式