公开(公告)号：US08537901B2

公开(公告)日：2013-09-17

申请号：US12978154

申请日：2010-12-23

申请人： Xiaoyun Deng ,  Lucas Hui

发明人： Xiaoyun Deng ,  Lucas Hui

IPC分类号： H04B1/66

CPC分类号： H04N5/144 ,  H04N7/0115

摘要： Aspects of the invention are directed towards an apparatus and method for detecting conventional and exotic cadences in video sequences. The cadence detector includes a motion auto-correlation unit using the inter-frame/field motion information to detect the cadence and a motion cross-correlation unit using the inter-frame/field motion information and the detected cadence to determine the cadence phase. The cadence detector also may include a reset signal generator to generate a reset signal to control the motion auto-correlation unit and the motion cross-correlation unit. The exotic cadence detector is robust and may support many cadences with reduced cadence detection latency as compared to the prior art.

摘要翻译： 本发明的方面涉及一种用于检测视频序列中的常规和异常节奏的装置和方法。 节奏检测器包括使用帧间/场运动信息来检测节奏的运动自相关单元和使用帧间/场运动信息和检测到的节奏的运动互相关单元来确定节奏相位。 节奏检测器还可以包括复位信号发生器以产生复位信号以控制运动自相关单元和运动互相关单元。 异国情调的振动检测器是鲁棒的，并且可以支持与现有技术相比减少的节奏检测延迟的许多节奏。

公开(公告)号：US08471962B2

公开(公告)日：2013-06-25

申请号：US13174194

申请日：2011-06-30

申请人： Xiaoyun Deng ,  Lucas Hui

发明人： Xiaoyun Deng ,  Lucas Hui

IPC分类号： H04N11/20 ,  H04N5/14

CPC分类号： H04N7/012

摘要： Aspects of the invention are directed towards an apparatus and method for detecting local video pixels in mixed cadence video. The local video detector comprises a comb detector that is adaptive to the contour of moving objects and local contrast, a motion detector that is robust to false motion due to vertical details, and a fader value estimator that provides a video confidence value to a fader that combines film mode and video mode processing results. The coupling of the local video detector to a film mode detector increases the robustness, accuracy, and efficiency of local film/video mode processing as compared to the prior art.

摘要翻译： 本发明的方面涉及一种用于检测混合节奏视频中的局部视频像素的装置和方法。 本地视频检测器包括一个适应于运动对象轮廓和局部对比度的梳状检测器，由于垂直细节而对假运动而鲁棒的运动检测器，以及向推子提供视频置信度值的推子值估计器， 结合电影模式和视频模式处理结果。 与现有技术相比，局部视频检测器与胶片模式检测器的耦合增加了本地胶片/视频模式处理的鲁棒性，准确度和效率。

公开(公告)号：US20130121424A1

公开(公告)日：2013-05-16

申请号：US13293978

申请日：2011-11-10

申请人： Xiaoyun DENG ,  Patricia Wei Yin CHIANG ,  Lucas HUI

发明人： Xiaoyun DENG ,  Patricia Wei Yin CHIANG ,  Lucas HUI

IPC分类号： H04N7/26

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176

摘要： Digital noise removal methods and systems for picture quality improvement on next generation high quality set-top-box and digital TV SOCs is disclosed with particular to a de-blocking method and system that is effective on on-grid and off-grid blocky artifacts generated by lossy video compression standards. Blocky artifacts are filtered by extracting motions vectors for a current pixel block, calculating off-grid positions based on the extracted motion vectors, and applying de-blocking filtering along the calculated off-grid positions. The methods and systems can further skip filtering on-grid blocky artifacts to be filtered by an on-grid de-blocking filter known in the art.

摘要翻译： 公开了用于下一代高质量机顶盒和数字TV SOC的图像质量改进的数字噪声去除方法和系统，特别涉及一种解除阻挡的方法和系统，其对生成的并网和离网块状伪影有效 通过有损视频压缩标准。 通过提取当前像素块的运动矢量，基于所提取的运动矢量计算离网位置，以及沿着所计算的离网位置应用解块滤波来对块状伪像进行滤波。 所述方法和系统可以进一步跳过通过本领域已知的并网去阻塞滤波器过滤网格块状伪影的过滤。

公开(公告)号：US20130002957A1

公开(公告)日：2013-01-03

申请号：US13174194

申请日：2011-06-30

申请人： Xiaoyun DENG ,  Lucas Hui

发明人： Xiaoyun DENG ,  Lucas Hui

IPC分类号： H04N9/74

CPC分类号： H04N7/012

摘要： Aspects of the invention are directed towards an apparatus and method for detecting local video pixels in mixed cadence video. The local video detector comprises a comb detector that is adaptive to the contour of moving objects and local contrast, a motion detector that is robust to false motion due to vertical details, and a fader value estimator that provides a video confidence value to a fader that combines film mode and video mode processing results. The coupling of the local video detector to a film mode detector increases the robustness, accuracy, and efficiency of local film/video mode processing as compared to the prior art.

摘要翻译： 本发明的方面涉及一种用于检测混合节奏视频中的局部视频像素的装置和方法。 本地视频检测器包括一个适应于运动对象轮廓和局部对比度的梳状检测器，由于垂直细节而对假运动而鲁棒的运动检测器，以及向推子提供视频置信度值的推子值估计器， 结合电影模式和视频模式处理结果。 与现有技术相比，局部视频检测器与胶片模式检测器的耦合增加了本地胶片/视频模式处理的鲁棒性，准确度和效率。

公开(公告)号：US20130002886A1

公开(公告)日：2013-01-03

申请号：US13174413

申请日：2011-06-30

申请人： Xiaoyun DENG ,  Lucas Hui

发明人： Xiaoyun DENG ,  Lucas Hui

IPC分类号： H04N17/00 ,  H04N7/01

CPC分类号： H04N7/012

摘要： The present invention relates to systems and methods for inverse telecine or video de-interlacing for picture quality improvement on set-top-box and TV products. The system comprises a film mode detector at the picture or sequence level, a global mixed video and film content detector at the region, picture, or sequence level on top of the detected film content, and a local video content detector at pixel level on top of the detected mixed video and film content. Inverse telecine processing is applied on detected film content fading in with a locally de-interlaced local video content. The invention further provides an apparatus and method for globally detecting mixed video and film content at region, picture, or sequence level. Such apparatus and method comprise a plurality of detectors for robustness and increased detection accuracy.

摘要翻译： 本发明涉及用于电视电影或视频去隔行扫描以用于机顶盒和电视产品图像质量改进的系统和方法。 该系统包括图像或序列级的胶片模式检测器，在检测到的胶片内容之上的区域，图像或序列级别的全局混合视频和胶片内容检测器，以及顶部像素级的本地视频内容检测器 检测到的混合视频和电影内容。 反向电视电影处理应用于采用本地去隔行的本地视频内容的检测到的影片内容衰落。 本发明还提供了一种用于在区域，图片或序列级别全面检测混合视频和电影内容的装置和方法。 这种装置和方法包括多个用于鲁棒性和增加的检测精度的检测器。

公开(公告)号：US09326007B2

公开(公告)日：2016-04-26

申请号：US13293978

申请日：2011-11-10

申请人： Xiaoyun Deng ,  Patricia Wei Yin Chiang ,  Lucas Hui

发明人： Xiaoyun Deng ,  Patricia Wei Yin Chiang ,  Lucas Hui

IPC分类号： H04N7/26 ,  H04N19/86 ,  H04N19/139 ,  H04N19/176 ,  H04N19/117

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176

摘要： Digital noise removal methods and systems for picture quality improvement on next generation high quality set-top-box and digital TV SOCs is disclosed with particular to a de-blocking method and system that is effective on on-grid and off-grid blocky artifacts generated by lossy video compression standards. Blocky artifacts are filtered by extracting motions vectors for a current pixel block, calculating off-grid positions based on the extracted motion vectors, and applying de-blocking filtering along the calculated off-grid positions. The methods and systems can further skip filtering on-grid blocky artifacts to be filtered by an on-grid de-blocking filter known in the art.

摘要翻译： 公开了用于下一代高质量机顶盒和数字电视SOC的图像质量改进的数字噪声消除方法和系统，特别涉及一种解除阻挡的方法和系统，其对生成的并网和离网块状伪影有效 通过有损视频压缩标准。 通过提取当前像素块的运动矢量，基于所提取的运动矢量计算离网位置，以及沿着所计算的离网位置应用解块滤波来对块状伪像进行滤波。 所述方法和系统可以进一步跳过通过本领域已知的并网去阻塞滤波器过滤网格块状伪影的过滤。

公开(公告)号：US08553783B2

公开(公告)日：2013-10-08

申请号：US12494124

申请日：2009-06-29

申请人： Xiaoyun Deng ,  Patricia Chiang

发明人： Xiaoyun Deng ,  Patricia Chiang

IPC分类号： H04N11/02

CPC分类号： H04N5/144 ,  H04N5/142 ,  H04N5/213

摘要： Apparatus and methods of motion detection for mosquito noise reduction in video sequences are provided. In one aspect, a method of motion detection in a sequence of digital images classifies a pixel of a plurality of pixels of a current image frame represented by a digital video input signal as a motion or non-motion pixel. A motion value for the pixel is calculated based on the classification of the pixel. The motion value is mapped to a coefficient of a temporal filter based on a control curve. A digital video output signal is generated based on the coefficient.

摘要翻译： 提供了视频序列中减少蚊式噪声的运动检测装置和方法。 一方面，数字图像序列中的运动检测方法将由数字视频输入信号表示的当前图像帧的多个像素的像素分类为运动或非运动像素。 基于像素的分类来计算像素的运动值。 基于控制曲线将运动值映射到时间滤波器的系数。 基于系数产生数字视频输出信号。

公开(公告)号：US08937683B2

公开(公告)日：2015-01-20

申请号：US13174413

申请日：2011-06-30

申请人： Xiaoyun Deng ,  Lucas Hui

发明人： Xiaoyun Deng ,  Lucas Hui

IPC分类号： H04N7/01 ,  H04N11/20

CPC分类号： H04N7/012

摘要： The present invention relates to systems and methods for inverse telecine or video de-interlacing for picture quality improvement on set-top-box and TV products. The system comprises a film mode detector at the picture or sequence level, a global mixed video and film content detector at the region, picture, or sequence level on top of the detected film content, and a local video content detector at pixel level on top of the detected mixed video and film content. Inverse telecine processing is applied on detected film content fading in with a locally de-interlaced local video content. The invention further provides an apparatus and method for globally detecting mixed video and film content at region, picture, or sequence level. Such apparatus and method comprise a plurality of detectors for robustness and increased detection accuracy.

摘要翻译： 本发明涉及用于电视电影或视频去隔行扫描以用于机顶盒和电视产品图像质量改进的系统和方法。 该系统包括图像或序列级的胶片模式检测器，在检测到的胶片内容之上的区域，图像或序列级别的全局混合视频和胶片内容检测器，以及顶部像素级的本地视频内容检测器 检测到的混合视频和电影内容。 反向电视电影处理应用于采用本地去隔行的本地视频内容的检测到的影片内容衰落。 本发明还提供了一种用于在区域，图片或序列级别全面检测混合视频和电影内容的装置和方法。 这种装置和方法包括多个用于鲁棒性和增加的检测精度的检测器。

公开(公告)号：US20120162439A1

公开(公告)日：2012-06-28

申请号：US12978154

申请日：2010-12-23

申请人： Xiaoyun Deng ,  Lucas Hui

发明人： Xiaoyun Deng ,  Lucas Hui

IPC分类号： H04N17/00 ,  H04N5/14

CPC分类号： H04N5/144 ,  H04N7/0115

摘要： Aspects of the invention are directed towards an apparatus and method for detecting conventional and exotic cadences in video sequences. The cadence detector includes a motion auto-correlation unit using the inter-frame/field motion information to detect the cadence and a motion cross-correlation unit using the inter-frame/field motion information and the detected cadence to determine the cadence phase. The cadence detector also may include a reset signal generator to generate a reset signal to control the motion auto-correlation unit and the motion cross-correlation unit. The exotic cadence detector is robust and may support many cadences with reduced cadence detection latency as compared to the prior art.

摘要翻译： 本发明的方面涉及一种用于检测视频序列中的常规和异常节奏的装置和方法。 节奏检测器包括使用帧间/场运动信息来检测节奏的运动自相关单元和使用帧间/场运动信息和检测到的节奏的运动互相关单元来确定节奏相位。 节奏检测器还可以包括复位信号发生器以产生复位信号以控制运动自相关单元和运动互相关单元。 异国情调的振动检测器是鲁棒的，并且可以支持与现有技术相比减少的节奏检测延迟的许多节奏。

公开(公告)号：US20100165207A1

公开(公告)日：2010-07-01

申请号：US12494124

申请日：2009-06-29

申请人： Xiaoyun Deng ,  Patricia Chiang

发明人： Xiaoyun Deng ,  Patricia Chiang

IPC分类号： H04N5/00

CPC分类号： H04N5/144 ,  H04N5/142 ,  H04N5/213

摘要： Apparatus and methods of motion detection for mosquito noise reduction in video sequences are provided. In one aspect, a method of motion detection in a sequence of digital images classifies a pixel of a plurality of pixels of a current image frame represented by a digital video input signal as a motion or non-motion pixel. A motion value for the pixel is calculated based on the classification of the pixel. The motion value is mapped to a coefficient of a temporal filter based on a control curve. A digital video output signal is generated based on the coefficient.

摘要翻译： 提供了视频序列中减少蚊式噪声的运动检测装置和方法。 一方面，数字图像序列中的运动检测方法将由数字视频输入信号表示的当前图像帧的多个像素的像素分类为运动或非运动像素。 基于像素的分类来计算像素的运动值。 基于控制曲线将运动值映射到时间滤波器的系数。 基于系数产生数字视频输出信号。