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11. 发明授权

US07295715B2 Apparatus and method for detecting frequency 失效
标题翻译：用于检测频率的装置和方法
公开(公告)号：US07295715B2
公开(公告)日：2007-11-13
申请号：US10617798
申请日：2003-07-14
申请人： Byoung-hwa Jung , Hyung-jin Choi
发明人： Byoung-hwa Jung , Hyung-jin Choi
IPC分类号： G06K9/40
CPC分类号： G06T5/002 , G06T5/003 , G06T5/10 , G06T2207/20056
摘要： Provided are an apparatus and method for precisely processing an input signal by detecting the frequency characteristic of the signal and applying the detection result in an image signal processing block to reduce noise in the signal or enhance the details of the signal. The apparatus includes an indication value calculator, a level selector, and a frequency characteristic determination unit. Accordingly, the frequency distribution of an input signal is analyzed, and the signal is filtered by adjusting its filtering frequency band based on the analyzed frequency characteristic. Thus, it is possible to appropriately filter a signal using only a filter regardless of the resolution of the signal. In particular, noise in the signals of different scale ratios can be reduced or the details of the signal can be enhanced by processing the signals by only a filter.
摘要翻译：提供了一种通过检测信号的频率特性并将检测结果应用于图像信号处理块来精确地处理输入信号的装置和方法，以减少信号中的噪声或增强信号的细节。该装置包括指示值计算器，电平选择器和频率特性确定单元。因此，分析输入信号的频率分布，并且通过基于所分析的频率特性调整其滤波频带来对信号进行滤波。因此，无论信号的分辨率如何，都可以仅使用滤波器适当地滤波信号。特别地，可以减小不同比例尺的信号中的噪声，或者可以通过仅通过滤波器处理信号来增强信号的细节。

12. 发明申请

US20070047647A1 Apparatus and method for enhancing image using motion estimation 审中-公开
标题翻译：使用运动估计来增强图像的装置和方法
公开(公告)号：US20070047647A1
公开(公告)日：2007-03-01
申请号：US11507468
申请日：2006-08-22
申请人： Ki-deok Lee , Seung-joon Yang , Young-ho Lee , Hak-hun Choi , Hyung-jin Choi
发明人： Ki-deok Lee , Seung-joon Yang , Young-ho Lee , Hak-hun Choi , Hyung-jin Choi
IPC分类号： H04N7/12 , H04B1/66
CPC分类号： H04N5/208 , G06T5/002 , G06T5/003 , G06T5/20 , G06T7/20 , G06T2207/20012 , H04N5/145
摘要： An image enhancement apparatus using motion estimation includes: a motion estimation unit estimating a degree of motion between an input image on which image enhancement is performed and a temporally successive image; and an enhancement unit applying the image enhancement to an area without motion in the input image while not applying the image enhancement to an area with motion in the input image on the basis of the motion degree. Accordingly, by performing image enhancement on an area without motion in an input image while not performing image enhancement on an area with motion in the input image, it is possible to prevent image noise from being generated in the area with motion.
摘要翻译：使用运动估计的图像增强装置包括：运动估计单元，估计在其上执行图像增强的输入图像与时间上连续的图像之间的运动程度; 以及增强单元，其基于所述运动程度，在不输入所述输入图像中的运动区域的情况下，将所述图像增强应用于所述输入图像中的运动区域。因此，通过在输入图像中对运动区域进行图像增强的同时对输入图像中的运动区域进行图像增强，可以防止在运动区域产生图像噪声。

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