公开(公告)号：US08391628B2

公开(公告)日：2013-03-05

申请号：US12970817

申请日：2010-12-16

Applicant: Yong Huang ,  Lucas Hui

Inventor： Yong Huang ,  Lucas Hui

IPC: G06K9/40 ,  H04N1/407 ,  G09G5/00

CPC classification number: H04N5/14 ,  G06T5/002 ,  G06T2200/12 ,  G06T2207/20192

Abstract: A directional anti-aliasing filter circuit includes an input node and an output node, a directional anti-aliasing filter having an input coupled to the input node, an adaptive gain control having an input coupled to an output of the directional anti-aliasing filter, a summer having a first input coupled to an output of the adaptive gain control, a second input coupled to the input node, and an output coupled to the output node, a texture detector for providing a texture adjust signal to the directional anti-aliasing filter and a texture adaptive gain signal to the adaptive gain control, an edge detector for providing an edge direction signal to the directional anti-aliasing filter, and a corner detector for providing a corner adaptive gain signal to the adaptive gain control.

Abstract translation: 定向抗混叠滤波器电路包括输入节点和输出节点，具有耦合到输入节点的输入的定向抗混叠滤波器，具有耦合到定向抗混叠滤波器的输出的输入的自适应增益控制， 具有耦合到自适应增益控制的输出的第一输入，耦合到输入节点的第二输入和耦合到输出节点的输出的加法器，纹理检测器，用于向定向抗锯齿滤波器提供纹理调整信号 以及到自适应增益控制的纹理自适应增益信号，用于向定向抗混叠滤波器提供边缘方向信号的边缘检测器，以及用于向自适应增益控制提供角自适应增益信号的角检测器。

公开(公告)号：US20130002957A1

公开(公告)日：2013-01-03

申请号：US13174194

申请日：2011-06-30

Applicant: Xiaoyun DENG ,  Lucas Hui

Inventor： Xiaoyun DENG ,  Lucas Hui

IPC: H04N9/74

CPC classification number: H04N7/012

Abstract: 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.

Abstract translation: 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

Applicant: Xiaoyun DENG ,  Lucas Hui

Inventor： Xiaoyun DENG ,  Lucas Hui

IPC: H04N17/00 ,  H04N7/01

CPC classification number: H04N7/012

Abstract: 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.

Abstract translation: 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：US20110181787A1

公开(公告)日：2011-07-28

申请号：US12695220

申请日：2010-01-28

Applicant: Haiyun Wang ,  Lucas Hui

Inventor： Haiyun Wang ,  Lucas Hui

IPC: H04N5/14 ,  H04N5/52

CPC classification number: H04N5/202

Abstract: The appearance of image details can be preserved and/or enhanced by applying contrast adaptive gain to the high spatial frequency component of the luminance information. The image details in bright and/or dark regions can be further boosted by applying a local mean adaptive gain. The contrast transfer mapping curve for luminance contrast enhancement can be re-scaled to account for the applied gain. The re-scaling may be performed from frame to frame of displayed video. The re-scaling may be temporally controlled for subsequent frames to make the re-scaling change gradually to prevent flickering.

Abstract translation: 可以通过对亮度信息的高空间频率分量应用对比度自适应增益来保持和/或增强图像细节的外观。 亮区和/或暗区的图像细节可以通过应用局部平均自适应增益进一步提升。 用于亮度对比度增强的对比度转移映射曲线可以重新缩放以考虑所应用的增益。 可以从显示视频的帧到帧执行重新缩放。 对于随后的帧可以暂时控制重新缩放以使得重新缩放逐渐变化以防止闪烁。

公开(公告)号：US07551673B1

公开(公告)日：2009-06-23

申请号：US09980443

申请日：1999-05-13

Applicant: Hong Lye Oh ,  Yau Wai Lucas Hui

Inventor： Hong Lye Oh ,  Yau Wai Lucas Hui

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N19/57 ,  G06T7/238 ,  H04N19/51 ,  H04N19/527 ,  H04N19/53 ,  H04N19/56

Abstract: A method and apparatus of encoding digital video according to the ISO/IEC MPEG standards (ISO/IEC 11172-2 MPEG-1 and ISO/IEC 13818-2 MPEG-2) using an adaptive motion estimator. A plurality of global motion vectors are derived from the motion vectors of a previous picture in a sequence, and the global motion vectors are analyzed to determine motion characteristics. The video encoding is arranged to enable switching among different types of local motion estimators based on the motion characteristics of the moving pictures sequence. This gives rise to a motion estimation algorithm that can adaptively change its search range, search area and block matching scheme to suit different types of moving sequences.

Abstract translation: 使用自适应运动估计器根据ISO / IEC MPEG标准（ISO / IEC 11172-2 MPEG-1和ISO / IEC 13818-2 MPEG-2）编码数字视频的方法和装置。 从序列中的先前图像的运动矢量导出多个全局运动矢量，并且分析全局运动矢量以确定运动特性。 视频编码被布置成基于运动图像序列的运动特性来实现不同类型的局部运动估计器之间的切换。 这导致运动估计算法可以自适应地改变其搜索范围，搜索区域和块匹配方案以适应不同类型的移动序列。

公开(公告)号：US20060110065A1

公开(公告)日：2006-05-25

申请号：US10995679

申请日：2004-11-23

Applicant: Yong Huang ,  Patricia Chiang ,  Lucas Hui

Inventor： Yong Huang ,  Patricia Chiang ,  Lucas Hui

IPC: G06K9/40

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/60 ,  H04N19/61 ,  H04N19/86

Abstract: A method includes identifying a pair of image data blocks separated by a boundary. The image data blocks include image information defining multiple pixels in at least one image. The method also includes identifying at least one filter length based on edge contents of at least some of the pixels in the at least one image. In addition, the method includes filtering at least some of the pixels in the pair of image data blocks along the boundary using the at least one identified filter length.

Abstract translation: 一种方法包括识别由边界分开的一对图像数据块。 图像数据块包括定义至少一个图像中的多个像素的图像信息。 该方法还包括基于至少一个图像中的至少一些像素的边缘内容识别至少一个滤波器长度。 此外，该方法包括使用至少一个识别的滤波器长度沿边界对图像数据块对中的至少一些像素进行滤波。

公开(公告)号：US09326006B2

公开(公告)日：2016-04-26

申请号：US11514723

申请日：2006-09-01

Applicant: Patricia Chiang ,  Lucas Hui

Inventor： Patricia Chiang ,  Lucas Hui

IPC: H04N7/12 ,  H04N19/86 ,  H04N19/139 ,  H04N19/176 ,  H04N19/172 ,  H04N19/61 ,  H04N19/117 ,  H04N19/14

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

Abstract: A method, system and apparatus for adaptive pre-filtering includes: extracting tuning parameters from video data in a video encoding process; processing the tuning parameters to generate control parameters representative of properties of the video data; coupling the control parameters to a filter response; generating filter coefficients according to the filter response; and filtering the video data using the filter coefficients prior to video encoding. The filtering of video data may thus be adapted to one or more tuning parameters of the video data and the encoding process. The filtering may decrease the complexity of encoding by an attenuation of high frequency signals, effectively decreasing the quantization step and reducing compression artifacts.

Abstract translation: 一种用于自适应预滤波的方法，系统和装置，包括：在视频编码过程中从视频数据中提取调谐参数; 处理调谐参数以产生表示视频数据的属性的控制参数; 将控制参数耦合到过滤器响应; 根据滤波器响应产生滤波器系数; 并使用视频编码之前的滤波器系数对视频数据进行滤波。 视频数据的滤波因此可以适应于视频数据和编码过程的一个或多个调谐参数。 滤波可以通过高频信号的衰减降低编码的复杂度，有效地减少量化步长并减少压缩伪影。

公开(公告)号：US08937683B2

公开(公告)日：2015-01-20

申请号：US13174413

申请日：2011-06-30

Applicant: Xiaoyun Deng ,  Lucas Hui

Inventor： Xiaoyun Deng ,  Lucas Hui

IPC: H04N7/01 ,  H04N11/20

CPC classification number: H04N7/012

Abstract: 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.

Abstract translation: 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：US08811766B2

公开(公告)日：2014-08-19

申请号：US13332949

申请日：2011-12-21

Applicant: Anna Raffalli ,  Haiyun Wang ,  Lucas Hui ,  Patricia Wei Yin Chiang

Inventor： Anna Raffalli ,  Haiyun Wang ,  Lucas Hui ,  Patricia Wei Yin Chiang

IPC: G06K9/40 ,  H04N7/26

CPC classification number: H04N19/00066 ,  H04N19/117 ,  H04N19/14 ,  H04N19/86

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120162439A1

公开(公告)日：2012-06-28

申请号：US12978154

申请日：2010-12-23

Applicant: Xiaoyun Deng ,  Lucas Hui

Inventor： Xiaoyun Deng ,  Lucas Hui

IPC: H04N17/00 ,  H04N5/14

CPC classification number: H04N5/144 ,  H04N7/0115

Abstract: 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.

Abstract translation: 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。