| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 减少块状噪声的方法及装置 | CN200880001259.0 | 2008-10-02 | CN101569199A | 2009-10-28 | 林志荣; 侯沛霖; 近藤敏志 |
| 本发明提供一种减少块状噪声的方法及装置，消除块边界线中的变形，并在原图像的轮廓线与块边界线一致的情况下调整变形的消除程度，提高画质。自适应滤波器包括利用高通滤波器计算块边界附近的像素的权重的步骤，和利用该权重决定与块边界附近的像素相关的调整后的值的步骤。块边界附近的像素值被调整，消除块状噪声。为了决定滤波处理后的值而将低通滤波器应用于块边界附近的像素。与块边界附近的像素相关的调整后的值通过求出原始像素值与滤波值的加权和来决定。高通滤波器识别块边界附近的像素的鲜明度，低通滤波器减少块边界附近的像素间的差异，因此自适应滤波器输出调整后的值，该值消除块状噪声，并保持图像的鲜明度。 | ||||||
| 2 | 降低块状噪声装置及图像显示装置 | CN200580014579.6 | 2005-10-14 | CN100553334C | 2009-10-21 | 泽一树 |
| 一种降低块状噪声装置，包括判断帧间解码图像信号的相关度高低的帧相关判断单元(10)，从解码图像信号中将与近邻像素之间亮度差较小的图像区域作为平坦区域而检测出来的平坦区域检测单元(30)，从解码图像信号中将含有空间高频成分的图像区域作为高频区域而检测出来的高频区域检测单元(40)，将对应于指定区域的解码图像信号进行平滑处理的平滑处理单元(60)，用来设定平滑处理单元(60)应对解码图像信号进行平滑处理的图像区域的处理区域设定单元(50)。其中，处理区域设定单元(50)，至少将帧相关度低的帧中的解码图像信号的平坦区域且非高频区域的区域，作为处理区域来设定。 | ||||||
| 3 | 减少块状噪声的方法及装置 | CN200880001259.0 | 2008-10-02 | CN101569199B | 2012-06-27 | 林志荣; 侯沛霖; 近藤敏志 |
| 本发明提供一种减少块状噪声的方法及装置，消除块边界线中的变形，并在原图像的轮廓线与块边界线一致的情况下调整变形的消除程度，提高画质。自适应滤波器包括利用高通滤波器计算块边界附近的像素的权重的步骤，和利用该权重决定与块边界附近的像素相关的调整后的值的步骤。块边界附近的像素值被调整，消除块状噪声。为了决定滤波处理后的值而将低通滤波器应用于块边界附近的像素。与块边界附近的像素相关的调整后的值通过求出原始像素值与滤波值的加权和来决定。高通滤波器识别块边界附近的像素的鲜明度，低通滤波器减少块边界附近的像素间的差异，因此自适应滤波器输出调整后的值，该值消除块状噪声，并保持图像的鲜明度。 | ||||||
| 4 | 一种去除视频图像块状噪声的方法 | CN201010176889.0 | 2010-05-20 | CN101867704A | 2010-10-20 | 陈卫明; 荆亚新; 戴春晓; 高进宝; 迟培毅; 王博; 王皓 |
| 本发明涉及一种去除视频图像块状噪声的方法，将视频图像进行熵解码、重排序、反量化、反变换和滤波器处理得到重构图象，再将重构图象进行非线性扩散图像滤波处理，所述非线性扩散图像滤波处理为首先计算图像中每个像素的梯度绝对值，以及图像的等照度线曲率绝对值，并根据这两个参数确定每个像素的扩散系数取值；然后进行非线性扩散算法去除块状噪声，即根据扩散系数确定扩散程度，同时更新像素的灰度值；最后计算此次图像扩散结果的信噪比，如果该信噪比高于指定值则图像处理结束，否则回到上步，即更新梯度绝对值和曲率绝对值，直至信噪比高于指定值。本发明适用于滤除重构图像的块状噪声，且可以保护边缘，具有很好的效果。 | ||||||
| 5 | 块状噪声的降噪方法及装置 | CN201810303006.4 | 2018-04-06 | CN108337509A | 2018-07-27 | 谢将相; 郭李军 |
| 本发明公开了一种块状噪声的降噪方法及装置，该降噪方法包括如下步骤：1)根据输入的像素块中边界侧像素的绝对差分和像素值范围，分析得到所述像素块中边界侧像素的块状噪声类型；2)根据像素块中边界两侧像素的块状噪声类型和像素的块尺寸选取适配的降噪滤波算法对像素块中像素进行滤波处理。本发明对输入像素边界两侧的块状噪声分类，选取适合于不同块状噪声类型的降噪滤波算法对边界两侧的像素进行滤波处理，提高了块状噪声的降噪效果，降噪后的图像显示清楚。 | ||||||
| 6 | 降低块状噪声装置及图像显示装置 | CN200580014579.6 | 2005-10-14 | CN1951121A | 2007-04-18 | 泽一树 |
| 一种降低块状噪声装置，包括判断帧间解码图像信号的相关度高低的帧相关判断单元(10)，从解码图像信号中将与近邻像素之间亮度差较小的图像区域作为平坦区域而检测出来的平坦区域检测单元(30)，从解码图像信号中将含有空间高频成分的图像区域作为高频区域而检测出来的高频区域检测单元(40)，将对应于指定区域的解码图像信号进行平滑处理的平滑处理单元(60)，用来设定平滑处理单元(60)应对解码图像信号进行平滑处理的图像区域的处理区域设定单元(50)。其中，处理区域设定单元(50)，至少将帧相关度低的帧中的解码图像信号的平坦区域且非高频区域的区域，作为处理区域来设定。 | ||||||
| 7 | 디지털 영상에서의 블록 노이즈 저감 방법 및 장치, 이를이용한 인코딩/디코딩 방법 및 인코더/디코더 | KR1020070012847 | 2007-02-07 | KR100843100B1 | 2008-07-03 | 이승신; 박두식; 권인소; 도록헌 |
| A method and an apparatus for reducing the block noise of a digital image, and an encoding/decoding method and an encoder and a decoder using the same are provided to perform the deblocking of a block with blocking effects, thereby providing a high-quality image to a user. A method for reducing the block noise of a digital image comprises the following steps of: calculating the value of a boundary block including a boundary between two blocks adjacent to each other(S102); calculating predetermined characteristic values of the boundary block to calculate the visibility of a vertical boundary block and the visibility of a horizontal boundary block(S108); dividing the boundary block according to a result that the calculated visibility and a predetermined threshold value are compared with each other and whether the two blocks are edge blocks(S109); and performing the deblocking of the two blocks adjacent to each other according to the classification result(S111). | ||||||
| 8 | FILTERING METHOD FOR REMOVING BLOCK ARTIFACTS AND/OR RINGING NOISE AND APPARATUS THEREFOR | US13487485 | 2012-06-04 | US20120236948A1 | 2012-09-20 | Jeong-hoon PARK; Yong-je KIM; Yung-lyul LEE |
| Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data. | ||||||
| 9 | FILTERING METHOD FOR REMOVING BLOCK ARTIFACTS AND/OR RINGING NOISE AND APPARATUS THEREFOR | US12364994 | 2009-02-03 | US20090190657A1 | 2009-07-30 | Jeong-hoon PARK; Yong-je Kim; Yung-Iyul Lee |
| Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data. | ||||||
| 10 | Filtering method and apparatus for removing blocking artifacts and/or ringing noise | US10359300 | 2003-02-06 | US07145953B2 | 2006-12-05 | Jeong-hoon Park; Yong-je Kim; Yung-lyul Lee; Il-hoing Shin |
| Provided are a filtering method and apparatus for removing blocking artifacts and/or ringing noise. The filtering apparatus includes (a) performing one-dimensional discrete cosine transform (1D DCT) on video data on a block-by-block basis in a horizontal or vertical direction; (b) performing 1D DCT in the other direction of (a) and quantization on at least one of 1D DCT coefficients for a pixel obtained by performing 1D-DCT on the video data, the pixel being selected according to pixel position; and (c) generating filtering information based on the quantized pixel coefficient obtained from (b). According to the filtering method and apparatus, it is possible to reduce the amount of calculation when obtaining filtering information to remove the blocking artifacts and/or ringing noise. | ||||||
| 11 | Filtering method and apparatus for removing blocking artifacts and/or ringing noise | US10359300 | 2003-02-06 | US20040022315A1 | 2004-02-05 | Jeong-hoon Park; Yong-Je Kim; Yung-Lyul Lee; Il-hoing Shin |
| Provided are a filtering method and apparatus for removing blocking artifacts and/or ringing noise. The filtering apparatus includes (a) performing one-dimensional discrete cosine transform (1D DCT) on video data on a block-by-block basis in a horizontal or vertical direction; (b) performing 1D DCT in the other direction of (a) and quantization on at least one of 1D DCT coefficients for a pixel obtained by performing 1D-DCT on the video data, the pixel being selected according to pixel position; and (c) generating filtering information based on the quantized pixel coefficient obtained from (b). According to the filtering method and apparatus, it is possible to reduce the amount of calculation when obtaining filtering information to remove the blocking artifacts and/or ringing noise. | ||||||
| 12 | METHOD AND SYSTEM FOR ANALYZING CROSS-TALK COUPLING NOISE EVENTS IN BLOCK-BASED STATISTICAL STATIC TIMING | US12132636 | 2008-06-04 | US20090307645A1 | 2009-12-10 | Nathan C. Buck; Brian M. Dreibelbis; John P. Dubuque; Eric A. Foreman; Peter A. Habitz; David J. Hathaway; Gregory M. Schaeffer; Chandramouli Visweswariah |
| A method of performing statistical timing analysis of a logic design, including effects of signal coupling, includes performing a deterministic analysis to determine deterministic coupling information for at least one aggressor/victim net pair of the logic design. Additionally, the method includes performing a statistical timing analysis in which the deterministic coupling information for the at least one aggressor/victim net pair is combined with statistical values of the statistical timing analysis to determine a statistical effective capacitance of a victim of the aggressor/victim net pair. Furthermore, the method includes using the statistical effective capacitance to determine timing data used in the statistical timing analysis. | ||||||
| 13 | FILTERING METHOD FOR REMOVING BLOCK ARTIFACTS AND/OR RINGING NOISE AND APPARATUS THEREFOR | US11627442 | 2007-01-26 | US20070269128A1 | 2007-11-22 | Jeong-hoon PARK; Yong-je KIM; Yung-lyul LEE |
| Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data. | ||||||
| 14 | 一种激光条纹遮挡噪声滤除及补偿方法 | CN201910790039.0 | 2019-08-26 | CN110533675A | 2019-12-03 | 刘巍; 刘思彤; 程习康; 罗唯奇; 张洋; 逯永康; 贾振元 |
| 本发明一种激光条纹遮挡噪声滤除及补偿方法属于视觉测量领域，涉及一种激光条纹遮挡噪声滤除及补偿方法。该方法首先根据噪声与激光条纹的相似程度，将噪声分类为线型噪声和块状噪声；然后，基于Hough直线检测及激光条纹在图像边界处的特性，检测并识别激光条纹和线型噪声，并提出宽度条件约束补偿线型噪声；最后，基于激光条纹骨架的形态学处理，检测并过滤块状噪声，采用线性插值补偿缺损的激光条纹。本发明从图像处理角度出发，有效避免了激光条纹遮挡噪声造成的关键测量信息缺失等问题，提高了视觉测量中图像信息获取精度，通用性强。 | ||||||
| 15 | 一种激光条纹遮挡噪声滤除及补偿方法 | CN201910790039.0 | 2019-08-26 | CN110533675B | 2021-01-19 | 刘巍; 刘思彤; 程习康; 罗唯奇; 张洋; 逯永康; 贾振元 |
| 本发明一种激光条纹遮挡噪声滤除及补偿方法属于视觉测量领域，涉及一种激光条纹遮挡噪声滤除及补偿方法。该方法首先根据噪声与激光条纹的相似程度，将噪声分类为线型噪声和块状噪声；然后，基于Hough直线检测及激光条纹在图像边界处的特性，检测并识别激光条纹和线型噪声，并提出宽度条件约束补偿线型噪声；最后，基于激光条纹骨架的形态学处理，检测并过滤块状噪声，采用线性插值补偿缺损的激光条纹。本发明从图像处理角度出发，有效避免了激光条纹遮挡噪声造成的关键测量信息缺失等问题，提高了视觉测量中图像信息获取精度，通用性强。 | ||||||
| 16 | 充气轮胎 | CN200910134398.7 | 2009-04-27 | CN101570113A | 2009-11-04 | 小岛弘行 |
| 提供能够兼顾干燥路面上操纵稳定性的提高与胎面花纹噪声的降低的充气轮胎。本发明的充气轮胎，相对于车辆的轮胎内外的安装方向已被指定，其特征在于：在胎面部的夹着轮胎赤道的车辆内侧以及车辆外侧的区域分别形成在轮胎周方向上排列的多个块状花纹要素，车辆内侧的块状花纹要素的间距数为60～80个，该车辆内侧的块状花纹要素的间距种类数为4种以上，车辆外侧的块状花纹要素的间距数为50～70个，该车辆外侧的块状花纹要素的间距种类数为4种以上，所述车辆内侧的块状花纹要素的间距数比所述车辆外侧的块状花纹要素的间距数多，并且所述车辆外侧的块状花纹要素的平均间距长度相对于所述车辆内侧的块状花纹要素的平均间距长度的比在1.05～1.20的范围内。 | ||||||
| 17 | 充气轮胎 | CN200910134398.7 | 2009-04-27 | CN101570113B | 2012-07-04 | 小岛弘行 |
| 提供能够兼顾干燥路面上操纵稳定性的提高与胎面花纹噪声的降低的充气轮胎。本发明的充气轮胎，相对于车辆的轮胎内外的安装方向已被指定，其特征在于：在胎面部的夹着轮胎赤道的车辆内侧以及车辆外侧的区域分别形成在轮胎周方向上排列的多个块状花纹要素，车辆内侧的块状花纹要素的间距数为60～80个，该车辆内侧的块状花纹要素的间距种类数为4种以上，车辆外侧的块状花纹要素的间距数为50～70个，该车辆外侧的块状花纹要素的间距种类数为4种以上，所述车辆内侧的块状花纹要素的间距数比所述车辆外侧的块状花纹要素的间距数多，并且所述车辆外侧的块状花纹要素的平均间距长度相对于所述车辆内侧的块状花纹要素的平均间距长度的比在1.05～1.20的范围内。 | ||||||
| 18 | 一种级联扩散方法 | CN202311718367.2 | 2023-12-13 | CN117710217A | 2024-03-15 | 唐杰; 滕嘉彦; 郑问迪; 丁铭 |
| 本发明提出一种级联扩散方法，包括，获取低分辨率高斯噪声，通过标准扩散模型对低分辨率高斯噪声进行处理得到低分辨率图像；将低分辨率图像进行最邻近线性插值，得到模糊高分辨率图像；获取高分辨率高斯噪声，根据高分辨率高斯噪声构建块状噪声和高斯噪声的混合噪声；将模糊高分辨率图像加上混合噪声得到加噪模糊图像；将加噪模糊图像输入中继扩散模型，输出得到模糊高分辨率图像的条件概率分布梯度；通过模糊扩散利用条件概率分布梯度和混合噪声构建随机微分方程采样器；对加噪模糊图像通过随机微分方程采样器进行采样，得到清晰的高分辨率图像。本发明提出的方法，通过模糊扩散和块状噪声将低分辨率图像转为对应的高分辨率图像。 | ||||||
| 19 | 提高红外图像质量的方法和装置 | CN200710098564.3 | 2007-04-20 | CN101042772A | 2007-09-26 | 李晓翔; 彭先蓉; 蔡敬菊 |
| 本发明涉及一种提高红外图像质量的方法，并且公开了一种消除红外图像背景中细胞状和块状斑纹以提高红外图像质量的装置。本发明的方法包括：通过红外图像的灰度直方图计算噪声均匀区域的上限和下限值，进而确定噪声均匀区域；根据所述确定的噪声均匀区域提取红外图像背景中的细胞状和块状斑纹的位置，并进行灰度值的替换。本发明的装置包括噪声均匀区域提取模块和斑纹提取和替换模块。本发明的优点是：采用单帧处理，方法简单，实时性和实用性好；提供了一种在硬件平台上将消除红外图像背景中出现的细胞状和块状斑纹，提高红外图像质量的方法付诸实现的装置，减少了后续图像处理的数据量和难度，提高处理了速度，且使图像处理更方便、快捷。 | ||||||
| 20 | 块状花纹 | CN201510043259.9 | 2015-01-28 | CN104553628A | 2015-04-29 | 陈振艺 |
| 本发明提供一种块状花纹，能有效降低花纹的噪声，而对花纹力学性能的影响很小。在块状花纹的横向花纹沟中设置高度较高，长度较长，厚度较厚且呈上厚下薄趋势的凸起物，凸起物的两个侧面分别布置纵横交错的凹槽，凸起物的顶部沿横向花纹沟方向设置缺口。 | ||||||
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