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1. 发明授权

US08842741B2 Method and system for digital noise reduction of scaled compressed video pictures 有权
标题翻译：数字降噪压缩视频图像的方法和系统
公开(公告)号：US08842741B2
公开(公告)日：2014-09-23
申请号：US12975977
申请日：2010-12-22
申请人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
发明人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
IPC分类号： H04N5/00 , H04N19/86
CPC分类号： H04N19/00909 , H04N19/86
摘要： In a video processing device, scale of a video image is detected for vertical and horizontal directions based on pixel information, for example, per pixel vertical and horizontal gradients. Gradients are utilized or discarded based on picture format, standard deviation of luma levels and pixel location relative to black border edges, graphics and/or overlaid content. Mosquito noise filters are adapted based on scale and/or noise strength. Median and/or linear filter results are selected based on a weakest, a strongest and/or a blended result. Horizontal and vertical operations are performed separately for edge detection, edge strength determination, filtering and filter correction control. Horizontal and vertical block grid spacing and grid shift are determined. Block noise strength is determined. Block noise filters are configured based on scaling and/or noise strength. Filter corrections are limited based on block noise strength. Noise reduction results may be blended to generate a pixel correction value.
摘要翻译：在视频处理设备中，基于像素信息，例如每像素垂直和水平梯度，检测垂直和水平方向的视频图像的尺度。基于图像格式，亮度级别的标准偏差和相对于黑色边缘边缘，图形和/或重叠内容的像素位置来使用或丢弃渐变。蚊子噪声滤波器基于规模和/或噪声强度进行调整。基于最弱，最强和/或混合结果选择中值和/或线性滤波器结果。水平和垂直操作分别进行边缘检测，边缘强度确定，滤波和滤波器校正控制。确定水平和垂直方格网格间距和网格位移。确定噪声强度。基于缩放和/或噪声强度配置块噪声滤波器。基于块噪声强度限制滤波器校正。可以混合噪声降低结果以产生像素校正值。

2. 发明申请

US20120162525A1 Method And System For Digital Noise Reduction Of Scaled Compressed Video Pictures 有权
标题翻译：数字降噪缩放压缩视频图像的方法和系统
公开(公告)号：US20120162525A1
公开(公告)日：2012-06-28
申请号：US12975977
申请日：2010-12-22
申请人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
发明人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
IPC分类号： H04N5/00
CPC分类号： H04N19/00909 , H04N19/86
摘要： In a video processing device, scale of a video image is detected for vertical and horizontal directions based on pixel information, for example, per pixel vertical and horizontal gradients. Gradients are utilized or discarded based on picture format, standard deviation of luma levels and pixel location relative to black border edges, graphics and/or overlaid content. Mosquito noise filters are adapted based on scale and/or noise strength. Median and/or linear filter results are selected based on a weakest, a strongest and/or a blended result. Horizontal and vertical operations are performed separately for edge detection, edge strength determination, filtering and filter correction control. Horizontal and vertical block grid spacing and grid shift are determined. Block noise strength is determined. Block noise filters are configured based on scaling and/or noise strength. Filter corrections are limited based on block noise strength. Noise reduction results may be blended to generate a pixel correction value.
摘要翻译：在视频处理设备中，基于像素信息，例如每像素垂直和水平梯度，检测垂直和水平方向的视频图像的尺度。基于图像格式，亮度级别的标准偏差和相对于黑色边缘边缘，图形和/或重叠内容的像素位置来使用或丢弃渐变。蚊子噪声滤波器基于规模和/或噪声强度进行调整。基于最弱，最强和/或混合结果选择中值和/或线性滤波器结果。水平和垂直操作分别进行边缘检测，边缘强度确定，滤波和滤波器校正控制。确定水平和垂直方格网格间距和网格位移。确定噪声强度。基于缩放和/或噪声强度配置块噪声滤波器。基于块噪声强度限制滤波器校正。可以混合噪声降低结果以产生像素校正值。

3. 发明授权

US08879000B2 Method and system for detecting analog noise in the presence of mosquito noise 有权
标题翻译：在存在蚊子噪音的情况下检测模拟噪声的方法和系统
公开(公告)号：US08879000B2
公开(公告)日：2014-11-04
申请号：US12976281
申请日：2010-12-22
申请人： Jaewon Shin , Brian Schoner
发明人： Jaewon Shin , Brian Schoner
IPC分类号： H04N5/00 , G06K9/40 , H04N5/213
CPC分类号： H04N5/213
摘要： A method and system are provided in which a processor, such as a video processor, may determine a flatness value for a current video picture and may adjust a mosquito noise filtering of a subsequent video picture based on the determined flatness value. The flatness value may be determined within a predetermined region of the current video picture, which may be dynamically modified by the processor. The flatness value may be associated with the presence of analog noise in the current video picture, and may be determined based on horizontal and vertical variance values determined for one or more portions of the current video picture. The processor may adjust a mosquito noise strength value of the current video picture based on the determined flatness value and may adjust the mosquito noise filtering of the subsequent video picture based on the adjusted mosquito noise strength value of the current video picture.
摘要翻译：提供了一种方法和系统，其中诸如视频处理器的处理器可以确定当前视频图像的平坦度值，并且可以基于确定的平坦度值来调整后续视频图像的蚊式噪声滤波。可以在当前视频图像的预定区域内确定平坦度值，该区域可由处理器动态修改。平坦度值可以与当前视频图像中的模拟噪声的存在相关联，并且可以基于为当前视频图像的一个或多个部分确定的水平和垂直方差值来确定。处理器可以基于确定的平坦度值来调整当前视频图像的蚊式噪声强度值，并且可以基于当前视频图像的调整的蚊式噪声强度值来调整后续视频图像的蚊式噪声滤波。

4. 发明授权

US08754990B2 Method and system for processing chroma signals 失效
标题翻译：处理色度信号的方法和系统
公开(公告)号：US08754990B2
公开(公告)日：2014-06-17
申请号：US11855678
申请日：2007-09-14
申请人： Darren Neuman , Jaewon Shin , Brian Schoner
发明人： Darren Neuman , Jaewon Shin , Brian Schoner
IPC分类号： H04N9/78
CPC分类号： H04N9/77
摘要： Methods and systems for processing chroma signals are disclosed. Aspects of one method may include compensating a modulated chroma signal for distortions due to audio trap filtering. The compensated chroma signal may be demodulated to generate U and V chroma signals. The U and V chroma signals may be low pass filtered, and then YC aligned. YC alignment may comprise correcting portions of the U and V chroma signals based on the luma signal. The correction may be based on, for example, correlation between the U and V chroma signals and the Y luma signal, and/or energy level of the Y luma signal. The corrected U and V chroma signals may be chroma sharpened, where a gain parameter may be changed to change a transition slope for the U and V chroma signals. The chroma sharpened signals may also be clamped to reduce overshoot and undershoot.
摘要翻译：公开了用于处理色度信号的方法和系统。一种方法的方面可以包括补偿由于音频陷波滤波引起的失真的调制色度信号。补偿色度信号可被解调以产生U和V色度信号。 U和V色度信号可以低通滤波，然后YC对齐。 YC对准可以包括基于亮度信号校正U和V色度信号的部分。校正可以基于例如U和V色度信号与Y亮度信号之间的相关性和/或Y亮度信号的能级。校正的U和V色度信号可以是色度锐化的，其中可以改变增益参数以改变U和V色度信号的转变斜率。色度锐化的信号也可以被钳位以减少过冲和下冲。

5. 发明授权

US08373801B1 Video source resolution detection 有权
标题翻译：视频源分辨率检测
公开(公告)号：US08373801B1
公开(公告)日：2013-02-12
申请号：US13213729
申请日：2011-08-19
申请人： Advait Mogre , Darren Neuman , Jaewon Shin , Brian Schoner
发明人： Advait Mogre , Darren Neuman , Jaewon Shin , Brian Schoner
IPC分类号： H04N5/21
CPC分类号： H04N19/00903 , G06T5/002 , H04N17/00 , H04N19/85 , H04N19/86
摘要： Embodiments for video content source resolution detection are provided. Embodiments enable systems and methods that measure video content source resolution and that provide image-by-image source scale factor measurements to picture quality (PQ) processing modules. With the source scale factor information. PQ processing modules can be adapted dynamically (on a picture-by-picture basis) according to the source scale factor information for better picture quality enhancement. In addition, embodiments provide source resolution detection that is minimally affected by video coding artifacts and superimposed content (e.g., graphics).
摘要翻译：提供了用于视频内容源分辨率检测的实施例。实施例使得能够测量视频内容源分辨率并且向图像质量（PQ）处理模块提供逐像素源比例因子测量的系统和方法。利用源比例因子信息，PQ处理模块可以根据源比例因子信息进行动态调整（逐个逐个图像），以提高图像质量。此外，实施例提供了受视频编码伪影和叠加内容（例如，图形）的影响最小的源分辨率检测。

6. 发明授权

US09407890B2 Method and system for sharpening the luma and the chroma signals 有权
标题翻译：用于锐化亮度和色度信号的方法和系统
公开(公告)号：US09407890B2
公开(公告)日：2016-08-02
申请号：US12353826
申请日：2009-01-14
申请人： Jaewon Shin , Brian Schoner , Darren Neuman , David Wu
发明人： Jaewon Shin , Brian Schoner , Darren Neuman , David Wu
IPC分类号： H04N9/77 , H04N9/64
CPC分类号： H04N9/77 , H04N9/646
摘要： A video processing system may be operable to utilize multi-band sharpening to process luma signals for image signals. The luma signal may be decomposed into a plurality of frequency band components, wherein each component may be processed separately using different sharpening gains and/or offsets. The multi-band processed components may be combined to generate sharpened output luma signals. The multi-band sharpening may be performed utilizing peaking processing, and the input luma signal and/or LTI sharpened luma signals may be combined with the multi-band peaking sharpened signals to generate the sharpened output luma signals. Corresponding chroma signals may also be adjusted to generate sharpened output chroma signals. Luma and/or chroma sharpening operations may be further adjusted based on coring, clipping avoidance, luma statistics, color region detections, and/or curve control parameters. Sharpened output image signals may be generated based on the sharpened output luma signals and the sharpened output chroma signals.
摘要翻译：视频处理系统可以用于利用多频带锐化来处理图像信号的亮度信号。亮度信号可以被分解成多个频带分量，其中每个分量可以使用不同的锐化增益和/或偏移分别进行处理。可以组合多波段处理的分量以产生锐化的输出亮度信号。可以使用峰化处理来执行多频带锐化，并且可以将输入亮度信号和/或LTI锐化亮度信号与多频带峰值锐化信号组合以产生锐化的输出亮度信号。也可以调整相应的色度信号以产生锐化的输出色度信号。可以基于取芯，限制避免，亮度统计，颜色区域检测和/或曲线控制参数来进一步调节亮度和/或色度磨削操作。可以基于锐化的输出亮度信号和锐化的输出色度信号来产生锐化的输出图像信号。

7. 发明申请

US20090180030A1 METHOD AND SYSTEM FOR SHARPENING THE LUMA AND THE CHROMA SIGNALS 有权
标题翻译：用于收集LUMA和CHROMA信号的方法和系统
公开(公告)号：US20090180030A1
公开(公告)日：2009-07-16
申请号：US12353826
申请日：2009-01-14
申请人： Jaewon Shin , Brian Schoner , Darren Neuman , David Wu
发明人： Jaewon Shin , Brian Schoner , Darren Neuman , David Wu
IPC分类号： H04N9/77
CPC分类号： H04N9/77 , H04N9/646
摘要： A video processing system may be operable to utilize multi-band sharpening to process luma signals for image signals. The luma signal may be decomposed into a plurality of frequency band components, wherein each component may be processed separately using different sharpening gains and/or offsets. The multi-band processed components may be combined to generate sharpened output luma signals. The multi-band sharpening may be performed utilizing peaking processing, and the input luma signal and/or LTI sharpened luma signals may be combined with the multi-band peaking sharpened signals to generate the sharpened output luma signals. Corresponding chroma signals may also be adjusted to generate sharpened output chroma signals. Luma and/or chroma sharpening operations may be further adjusted based on coring, clipping avoidance, luma statistics, color region detections, and/or curve control parameters. Sharpened output image signals may be generated based on the sharpened output luma signals and the sharpened output chroma signals.
摘要翻译：视频处理系统可以用于利用多频带锐化来处理图像信号的亮度信号。亮度信号可以被分解成多个频带分量，其中每个分量可以使用不同的锐化增益和/或偏移分别进行处理。可以组合多波段处理的分量以产生锐化的输出亮度信号。可以使用峰化处理来执行多频带锐化，并且可以将输入亮度信号和/或LTI锐化亮度信号与多频带峰值锐化信号组合以产生锐化的输出亮度信号。也可以调整相应的色度信号以产生锐化的输出色度信号。可以基于取芯，限制避免，亮度统计，颜色区域检测和/或曲线控制参数来进一步调整亮度和/或色度磨削操作。可以基于锐化的输出亮度信号和锐化的输出色度信号来产生锐化的输出图像信号。

8. 发明授权

US08264605B2 Deinterlacer that adapts to irregular video cadence 有权
标题翻译： Deinterlacer适应不规则的视频节奏
公开(公告)号：US08264605B2
公开(公告)日：2012-09-11
申请号：US12976256
申请日：2010-12-22
申请人： Jaewon Shin , Brian Schoner
发明人： Jaewon Shin , Brian Schoner
IPC分类号： H04N7/01
CPC分类号： H04N7/012 , H04N7/0137
摘要： A method and system are provided in which a processor may detect one or more changes in video cadence in a video signal and may adjust a counter value based on each detected change in video cadence. The processor may increase the counter value by a determined amount for each detected change in video cadence. When the counter value becomes larger than a first threshold value, the processor may filter the video signal. The video signal may be filtered utilizing a vertical Nyquist notch filter. Moreover, after each increase, the processor may decrease the counter value based on a decay parameter. When the counter value is less than a second threshold value, where such second threshold value is less than the first threshold value, the processor may disable the filtering of the video signal.
摘要翻译：提供了一种方法和系统，其中处理器可以检测视频信号中的视频节奏的一个或多个变化，并且可以基于每个检测到的视频节奏的改变来调整计数器值。处理器可以为每个检测到的视频节奏变化增加计数器值一个确定的量。当计数器值变得大于第一阈值时，处理器可以对视频信号进行滤波。可以使用垂直奈奎斯特陷波滤波器对视频信号进行滤波。此外，在每次增加之后，处理器可以基于衰减参数来减小计数器值。当计数器值小于第二阈值时，其中该第二阈值小于第一阈值，则处理器可以禁用视频信号的滤波。

9. 发明申请

US20120162507A1 Deinterlacer That Adapts To Irregular Video Cadence 有权
标题翻译：适应不规则视频缓存的去隔行扫描
公开(公告)号：US20120162507A1
公开(公告)日：2012-06-28
申请号：US12976256
申请日：2010-12-22
申请人： Jaewon Shin , Brian Schoner
发明人： Jaewon Shin , Brian Schoner
IPC分类号： H04N7/01
CPC分类号： H04N7/012 , H04N7/0137
摘要： A method and system are provided in which a processor may detect one or more changes in video cadence in a video signal and may adjust a counter value based on each detected change in video cadence. The processor may increase the counter value by a determined amount for each detected change in video cadence. When the counter value becomes larger than a first threshold value, the processor may filter the video signal. The video signal may be filtered utilizing a vertical Nyquist notch filter. Moreover, after each increase, the processor may decrease the counter value based on a decay parameter. When the counter value is less than a second threshold value, where such second threshold value is less than the first threshold value, the processor may disable the filtering of the video signal.
摘要翻译：提供了一种方法和系统，其中处理器可以检测视频信号中的视频节奏的一个或多个变化，并且可以基于每个检测到的视频节奏的改变来调整计数器值。处理器可以为每个检测到的视频节奏变化增加计数器值一个确定的量。当计数器值变得大于第一阈值时，处理器可以对视频信号进行滤波。可以使用垂直奈奎斯特陷波滤波器对视频信号进行滤波。此外，在每次增加之后，处理器可以基于衰减参数来减小计数器值。当计数器值小于第二阈值时，其中该第二阈值小于第一阈值，则处理器可以禁用视频信号的滤波。

10. 发明申请

US20120162526A1 Method and System for Detecting Analog Noise in the Presence of Mosquito Noise 有权
标题翻译：蚊患噪声检测模拟噪声的方法与系统
公开(公告)号：US20120162526A1
公开(公告)日：2012-06-28
申请号：US12976281
申请日：2010-12-22
申请人： Jaewon Shin , Brian Schoner
发明人： Jaewon Shin , Brian Schoner
IPC分类号： H04N5/21
CPC分类号： H04N5/213
摘要： A method and system are provided in which a processor, such as a video processor, may determine a flatness value for a current video picture and may adjust a mosquito noise filtering of a subsequent video picture based on the determined flatness value. The flatness value may be determined within a predetermined region of the current video picture, which may be dynamically modified by the processor. The flatness value may be associated with the presence of analog noise in the current video picture, and may be determined based on horizontal and vertical variance values determined for one or more portions of the current video picture. The processor may adjust a mosquito noise strength value of the current video picture based on the determined flatness value and may adjust the mosquito noise filtering of the subsequent video picture based on the adjusted mosquito noise strength value of the current video picture.
摘要翻译：提供了一种方法和系统，其中诸如视频处理器的处理器可以确定当前视频图像的平坦度值，并且可以基于确定的平坦度值来调整后续视频图像的蚊式噪声滤波。可以在当前视频图像的预定区域内确定平坦度值，该区域可由处理器动态修改。平坦度值可以与当前视频图像中的模拟噪声的存在相关联，并且可以基于为当前视频图像的一个或多个部分确定的水平和垂直方差值来确定。处理器可以基于确定的平坦度值来调整当前视频图像的蚊式噪声强度值，并且可以基于当前视频图像的调整的蚊式噪声强度值来调整后续视频图像的蚊式噪声滤波。

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