-
公开(公告)号：US07254277B2
公开(公告)日：2007-08-07
申请号：US10331567
申请日：2002-12-30
申请人： Jeffrey Kempf , Arnold P. Skoog , Roger M. Ikeda
发明人： Jeffrey Kempf , Arnold P. Skoog , Roger M. Ikeda
CPC分类号： H04N5/21 , H04N5/208 , H04N19/527 , H04N19/80
摘要： A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.
摘要翻译： 一种降低已经用高频强调滤波器滤波的图像数据中的振荡伪影的方法。 对于每个经滤波的数据值，从相邻滤波器抽头的数据值计算局部方差。 将该方差与阈值进行比较，如果超过阈值，则过滤的数据值在局部最小值和最大值之间受到限制。 还描述了也使用局部方差降低噪声的方法。
-
公开(公告)号：US20080158259A1
公开(公告)日：2008-07-03
申请号：US11617171
申请日：2006-12-28
IPC分类号： G09G5/00
CPC分类号： G09G5/02 , G02B27/0025 , G09G3/001
摘要： Color or grayscale images having optical elements induced geometric distortions can be corrected on individual color image component by creating correction image component having the complementary distortion; and applying the correction image component to the corresponding distorted color image component.
摘要翻译： 通过产生具有互补失真的校正图像分量，可以在各个彩色图像分量上校正具有光学元件诱导的几何失真的彩色或灰度图像; 以及将所述校正图像分量应用于相应的失真彩色图像分量。
-
3.发明申请公开(公告)号：US20100246992A1
公开(公告)日：2010-09-30
申请号：US12794167
申请日：2010-06-04
IPC分类号： G06K9/40
CPC分类号： H04N7/0115 , H04N5/213 , H04N5/7416 , H04N5/7458 , H04N7/012 , H04N7/0137
摘要： A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.
摘要翻译： 具有自适应噪声降低的内容相关扫描速率转换器，提供高度集成的，实现高效的去隔行器。 通过识别和使用来自图像（运动值和边缘方向）的冗余信息，该扫描速率转换器能够执行胶片模式检测，运动自适应扫描速率转换和依赖于内容的视频噪声降低的任务。 自适应视频噪声降低被并入到对图像的静止部分执行时间噪声降低的过程中，从而保留高细节空间信息，并且对图像的运动部分执行数据自适应空间噪声降低。 在平坦场中使用低通滤波器来平滑高斯噪声，并且在存在脉冲噪声或边缘的情况下使用方向依赖的中值滤波器。 因此，所选择的空间滤波器针对被处理以保持清晰边缘的特定像素进行了优化。
-
公开(公告)号：US20080218630A1
公开(公告)日：2008-09-11
申请号：US12123622
申请日：2008-05-20
IPC分类号： H04N7/01
CPC分类号： H04N7/0115 , H04N5/213 , H04N5/7416 , H04N5/7458 , H04N7/012 , H04N7/0137
摘要： A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.
摘要翻译： 具有自适应噪声降低的内容相关扫描速率转换器，提供高度集成的，实现高效的去隔行器。 通过识别和使用来自图像（运动值和边缘方向）的冗余信息，该扫描速率转换器能够执行胶片模式检测，运动自适应扫描速率转换和依赖于内容的视频噪声降低的任务。 自适应视频噪声降低被并入到对图像的静止部分执行时间噪声降低的过程中，从而保留高细节空间信息，并且对图像的运动部分执行数据自适应空间噪声降低。 在平坦场中使用低通滤波器来平滑高斯噪声，并且在存在脉冲噪声或边缘的情况下使用方向依赖的中值滤波器。 因此，所选择的空间滤波器针对被处理以保持清晰边缘的特定像素进行了优化。
-
5.发明授权公开(公告)号：US07375760B2
公开(公告)日：2008-05-20
申请号：US10334555
申请日：2002-12-31
CPC分类号： H04N7/0115 , H04N5/213 , H04N5/7416 , H04N5/7458 , H04N7/012 , H04N7/0137
摘要： A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.
摘要翻译： 具有自适应噪声降低的内容相关扫描速率转换器，提供高度集成的，实现高效的去隔行器。 通过识别和使用来自图像（运动值和边缘方向）的冗余信息，该扫描速率转换器能够执行胶片模式检测，运动自适应扫描速率转换和依赖于内容的视频噪声降低的任务。 自适应视频噪声降低被并入到对图像的静止部分执行时间噪声降低的过程中，从而保留高细节空间信息，并且对图像的运动部分执行数据自适应空间噪声降低。 在平坦场中使用低通滤波器来平滑高斯噪声，并且在存在脉冲噪声或边缘的情况下使用方向依赖的中值滤波器。 因此，所选择的空间滤波器针对被处理以保持清晰边缘的特定像素进行了优化。
-
公开(公告)号：US07970230B2
公开(公告)日：2011-06-28
申请号：US11832279
申请日：2007-08-01
申请人： Jeffrey Kempf , Arnold P. Skoog , Roger M. Ikeda
发明人： Jeffrey Kempf , Arnold P. Skoog , Roger M. Ikeda
CPC分类号： H04N5/21 , H04N5/208 , H04N19/527 , H04N19/80
摘要： A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.
摘要翻译： 一种降低已经用高频强调滤波器滤波的图像数据中的振荡伪影的方法。 对于每个滤波数据值，从相邻滤波器抽头的数据值计算局部方差。 将该方差与阈值进行比较，如果超过阈值，则过滤的数据值在局部最小值和最大值之间受到限制。 还描述了也使用局部方差降低噪声的方法。
-
7.发明授权公开(公告)号：US07738038B2
公开(公告)日：2010-06-15
申请号：US12123622
申请日：2008-05-20
CPC分类号： H04N7/0115 , H04N5/213 , H04N5/7416 , H04N5/7458 , H04N7/012 , H04N7/0137
摘要： A content-dependent scan rate converter with adaptive noise reduction that provides a highly integrated, implementation efficient de-interlacer. By identifying and using redundant information from the image (motion values and edge directions), this scan rate converter is able to perform the tasks of film-mode detection, motion-adaptive scan rate conversion, and content-dependent video noise reduction. Adaptive video noise reduction is incorporated in the process where temporal noise reduction is performed on the still parts of the image, thus preserving high detail spatial information, and data-adaptive spatial noise reduction is performed on the moving parts of the image. A low-pass filter is used in flat fields to smooth out Gaussian noise and a direction-dependent median filter is used in the presence of impulsive noise or an edge. Therefore, the selected spatial filter is optimized for the particular pixel that is being processed to maintain crisp edges.
摘要翻译： 具有自适应噪声降低的内容相关扫描速率转换器，提供高度集成的，实现高效的去隔行器。 通过识别和使用来自图像（运动值和边缘方向）的冗余信息，该扫描速率转换器能够执行胶片模式检测，运动自适应扫描速率转换和依赖于内容的视频噪声降低的任务。 自适应视频噪声降低被并入到对图像的静止部分执行时间噪声降低的过程中，从而保留高细节空间信息，并且对图像的运动部分执行数据自适应空间噪声降低。 在平坦场中使用低通滤波器来平滑高斯噪声，并且在存在脉冲噪声或边缘的情况下使用方向依赖的中值滤波器。 因此，所选择的空间滤波器针对被处理以保持清晰边缘的特定像素进行了优化。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.017 秒)
