Motion compensated de-blocking
    1.
    发明授权
    Motion compensated de-blocking 有权
    运动补偿去阻塞

    公开(公告)号:US09326007B2

    公开(公告)日:2016-04-26

    申请号:US13293978

    申请日:2011-11-10

    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。

    Perceptual block masking estimation system
    2.
    发明授权
    Perceptual block masking estimation system 有权
    感知块掩蔽估计系统

    公开(公告)号:US08811766B2

    公开(公告)日:2014-08-19

    申请号:US13332949

    申请日:2011-12-21

    IPC分类号: G06K9/40 H04N7/26

    摘要: Systems and methods are disclosed for determining the perceptibility of noise in a block of images and/or video. The systems and methods may compute a mask value for the block using a block masking generator. The mask value may indicate the perceptibility of noise in the block. The mask value may be computed using a normalized activity value and/or a texture value for the block. The normalized activity value may indicate the relative activity in the block as compared to the activity in the image and/or video. The texture value may indicate the strength and/or number of edges in the block.

    摘要翻译: 公开了用于确定图像和/或视频块中的噪声的感知性的系统和方法。 系统和方法可以使用块掩码生成器来计算块的掩码值。 掩模值可以指示块中的噪声的可感知性。 可以使用归一化活动值和/或块的纹理值来计算掩模值。 与图像和/或视频中的活动相比,归一化活动值可以指示块中的相对活动。 纹理值可以指示块中的边缘的强度和/或数量。

    Apparatus and method for exotic cadence detection
    3.
    发明授权
    Apparatus and method for exotic cadence detection 有权
    异国情调检测仪器及方法

    公开(公告)号:US08537901B2

    公开(公告)日:2013-09-17

    申请号:US12978154

    申请日:2010-12-23

    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。

    Apparatus and method for local video detector for mixed cadence sequence
    4.
    发明授权
    Apparatus and method for local video detector for mixed cadence sequence 有权
    用于混合节奏序列的本地视频检测器的装置和方法

    公开(公告)号:US08471962B2

    公开(公告)日:2013-06-25

    申请号:US13174194

    申请日:2011-06-30

    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。

    APPARATUS AND METHOD FOR LOCAL VIDEO DETECTOR FOR MIXED CADENCE SEQUENCE
    5.
    发明申请
    APPARATUS AND METHOD FOR LOCAL VIDEO DETECTOR FOR MIXED CADENCE SEQUENCE 有权
    用于混合CADENCE序列的本地视频检测器的装置和方法

    公开(公告)号:US20130002957A1

    公开(公告)日:2013-01-03

    申请号:US13174194

    申请日:2011-06-30

    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。

    APPARATUS AND METHOD FOR INVERSE TELECINE WITH LOCAL VIDEO DE-INTERLACING
    6.
    发明申请
    APPARATUS AND METHOD FOR INVERSE TELECINE WITH LOCAL VIDEO DE-INTERLACING 有权
    具有本地视频去互联的反相电路的装置和方法

    公开(公告)号:US20130002886A1

    公开(公告)日:2013-01-03

    申请号:US13174413

    申请日:2011-06-30

    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。

    Apparatus and method for inverse telecine with local video de-interlacing
    7.
    发明授权
    Apparatus and method for inverse telecine with local video de-interlacing 有权
    具有局部视频去隔行扫描的反电视电影的装置和方法

    公开(公告)号:US08937683B2

    公开(公告)日:2015-01-20

    申请号:US13174413

    申请日:2011-06-30

    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。

    APPARATUS AND METHOD FOR EXOTIC CADENCE DETECTION
    8.
    发明申请
    APPARATUS AND METHOD FOR EXOTIC CADENCE DETECTION 有权
    用于外部CADENCE检测的装置和方法

    公开(公告)号:US20120162439A1

    公开(公告)日:2012-06-28

    申请号:US12978154

    申请日:2010-12-23

    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。

    2D ringing and overshoot control in image rescaling
    9.
    发明授权
    2D ringing and overshoot control in image rescaling 有权
    图像重新缩放中的2D振铃和过冲控制

    公开(公告)号:US08682111B2

    公开(公告)日:2014-03-25

    申请号:US13489240

    申请日:2012-06-05

    申请人: Yong Huang Lucas Hui

    发明人: Yong Huang Lucas Hui

    IPC分类号: G06K9/32

    CPC分类号: G06T3/4007

    摘要: The methods and systems of this invention allow for independent adaptive control of ringing and overshoot effects in 2-dimensional array interpolation processes, including in image and video rescaling and analysis. The methods and systems can use either a column-wise or a row-wise interpolation, or a combination thereof. Each uses a respective preliminary interpolation of data, followed by ringing and/or overshoot control. Controllable parameters allow variability in the amount of ringing and/or overshoot retained in the interpolated data. The ringing and overshoot controls apply a local analysis of the data to adjust the preliminary interpolation results. The methods may be repeated iteratively, for example, to obtain a desired rescaling of an image data array.

    摘要翻译: 本发明的方法和系统允许对二维阵列插值过程中的振铃和过冲效应的独立自适应控制,包括在图像和视频重新缩放和分析中。 方法和系统可以使用列逐行或逐行插值,或其组合。 每个都使用数据的相应初步内插,随后是振铃和/或过冲控制。 可控参数允许内插数据中保留的振铃量和/或过冲的变化。 振铃和过冲控制应用数据的局部分析来调整初步插值结果。 可以重复地重复这些方法,例如,以获得图像数据阵列的期望的重新缩放。

    FRAME LEVEL QUANTIZATION ESTIMATION
    10.
    发明申请
    FRAME LEVEL QUANTIZATION ESTIMATION 审中-公开
    帧水平量化估计

    公开(公告)号:US20120133836A1

    公开(公告)日:2012-05-31

    申请号:US12955188

    申请日:2010-11-29

    IPC分类号: H04N5/21

    摘要: A frame level noise estimate for an image can be determined. An image processor includes a high pass filter unit configured to perform high-pass spatial filtering of image data for first and second frames to produce high-pass spatially filtered information for the first frame and the second frame. A cumulative histogram generator is configured to analyze the high-pass spatially filtered information for the first frame and the second frame to produce a first cumulative histogram for the first frame and a second cumulative histogram for the second frame. A comparator is configured to determine a difference value between the first and second cumulative histograms. A mapping unit is configured to determine an estimated noise value based on the difference value.

    摘要翻译: 可以确定图像的帧级噪声估计。 图像处理器包括高通滤波器单元,其被配置为对第一和第二帧执行图像数据的高通空间滤波,以产生用于第一帧和第二帧的高通空间滤波信息。 累积直方图生成器被配置为分析第一帧和第二帧的高通空间滤波信息,以产生第一帧的第一累积直方图和第二帧的第二累积直方图。 比较器被配置为确定第一和第二累积直方图之间的差值。 映射单元被配置为基于该差值来确定估计的噪声值。