公开(公告)号：US20060110062A1

公开(公告)日：2006-05-25

申请号：US10995937

申请日：2004-11-23

申请人： Patricia Chiang ,  Lucas Hui

发明人： Patricia Chiang ,  Lucas Hui

IPC分类号： G06K9/40

CPC分类号： H04N19/16 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/157

摘要： A method includes receiving image information representing at least one image. The image information defines multiple pixels in the at least one image. The method also includes identifying filter weights associated with the pixels. The filter weights are based on edge contents of at least a portion of the at least one image. In addition, the method includes filtering the image information using the identified filter weights.

公开(公告)号：US20060110065A1

公开(公告)日：2006-05-25

申请号：US10995679

申请日：2004-11-23

申请人： Yong Huang ,  Patricia Chiang ,  Lucas Hui

发明人： Yong Huang ,  Patricia Chiang ,  Lucas Hui

IPC分类号： G06K9/40

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

摘要： 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.

摘要翻译： 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：US20070064816A1

公开(公告)日：2007-03-22

申请号：US11514723

申请日：2006-09-01

申请人： Patricia Chiang ,  Lucas Hui

发明人： Patricia Chiang ,  Lucas Hui

IPC分类号： H04N7/12 ,  H04B1/66

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： A method for adaptive pre-filtering is disclosed, comprising the steps of: extracting tuning parameters from video encoding process; processing these tuning parameters to generate control parameters representative of the properties of the video data processed; coupling the control parameters to filter response; generating filter coefficients on selected filter response; and filtering the video data with the filter coefficients before video encoding. The filtering of video data is thus adapted to at least one or more tuning parameters of the video data and the encoding process. The filtering decreases the complexity of encoding by attenuation of high frequency, effectively decreasing the quantization step and reducing compression artifacts.

摘要翻译： 公开了一种用于自适应预滤波的方法，包括以下步骤：从视频编码过程中提取调谐参数; 处理这些调整参数以产生表示所处理的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; 在选择的滤波器响应上产生滤波器系数; 并且在视频编码之前用滤波器系数对视频数据进行滤波。 因此，视频数据的滤波适应于视频数据和编码过程的至少一个或多个调谐参数。 滤波通过高频衰减降低了编码的复杂度，有效地减少了量化步长并减少了压缩伪像。

公开(公告)号：US20120170864A1

公开(公告)日：2012-07-05

申请号：US13332949

申请日：2011-12-21

申请人： Anna Raffalli ,  Haiyun Wang ,  Lucas Hui ,  Patricia Chiang

发明人： Anna Raffalli ,  Haiyun Wang ,  Lucas Hui ,  Patricia Chiang

IPC分类号： G06K9/40

CPC分类号： H04N19/00066 ,  H04N19/117 ,  H04N19/14 ,  H04N19/86

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。

公开(公告)号：US20070121730A1

公开(公告)日：2007-05-31

申请号：US11461611

申请日：2006-08-01

申请人： Patricia Chiang ,  Lucas Hui

发明人： Patricia Chiang ,  Lucas Hui

IPC分类号： H04N11/04 ,  H04N7/12

CPC分类号： H04N19/423 ,  H04N19/61

摘要： A method of transferring sets of video line data and macroblock data, includes the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.

摘要翻译： 一种传送视频行数据和宏块数据集的方法包括以下步骤：确定宏块周期和比宏块周期长的视频行周期，将在视频行周期内传送的每组视频行数据划分成两个或 根据所确定的宏块周期和视频行周期之间的差异来更多部分，将分割的视频行数据集合的每个部分的突发传送与每个宏块数据集对齐到宏块周期，并且发起突发传送 在宏块周期间隔的视频行数据和宏块数据集合。

公开(公告)号：US20050007497A1

公开(公告)日：2005-01-13

申请号：US10847205

申请日：2004-05-17

申请人： Yong Huang ,  Patricia Chiang ,  Lucas Hui ,  Kwong Goh

发明人： Yong Huang ,  Patricia Chiang ,  Lucas Hui ,  Kwong Goh

IPC分类号： H04N5/52 ,  H04N9/64 ,  H04N9/68 ,  H04N9/77

CPC分类号： H04N9/68 ,  H04N9/77

摘要： A method of colour saturation compensation in a video signal is disclosed. The method includes the steps of: processing a luminance signal component of the video signal; determining whether the processing of the luminance signal results in a change in chrominance saturation; if the step of determining reveals that the chrominance saturation has changed, applying a chrominance compensation signal to the chrominance signals to counteract the effects of chrominance saturation, wherein said step of applying a compensation signal include the steps of: generating a compensation signal which is dependent on hue and luminance ratio (output luminance signal/input luminance signal). Apparatus for performing the method is also disclosed.

摘要翻译： 公开了一种视频信号中色彩饱和补偿的方法。 该方法包括以下步骤：处理视频信号的亮度信号分量; 确定亮度信号的处理是否导致色度饱和度的变化; 如果确定步骤显示色度饱和度已经改变，则将色度补偿信号施加到色度信号以抵消色度饱和的影响，其中所述施加补偿信号的步骤包括以下步骤：产生依赖的补偿信号 色相和亮度比（输出亮度信号/输入亮度信号）。 还公开了用于执行该方法的装置。

公开(公告)号：US09326006B2

公开(公告)日：2016-04-26

申请号：US11514723

申请日：2006-09-01

申请人： Patricia Chiang ,  Lucas Hui

发明人： Patricia Chiang ,  Lucas Hui

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

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

摘要： 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.

摘要翻译： 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：US20050012866A1

公开(公告)日：2005-01-20

申请号：US10850963

申请日：2004-05-20

申请人： Patricia Chiang ,  Lucas Hui

发明人： Patricia Chiang ,  Lucas Hui

IPC分类号： G06T5/00 ,  G06T5/20 ,  H04N5/14 ,  H04N5/21 ,  H04N9/77

CPC分类号： G06T5/003 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N5/142 ,  H04N5/21 ,  H04N9/77

摘要： A processor for enhancing an input luminance signal including: a means for calculating a chroma edge value associated with the input luminance signal; a means for measuring a luminance gradient associated with the input luminance signal; a peaking filter for processing the input luminance signal; a gain adjustment circuit having a gain function that is adjustable relative to the calculated chroma edge value, the gain adjustment circuit being operable to adjust the magnitude of the output of the peaking filter wherein: in a first range of luminance gradients, the output is an attenuated version of the input; in a second range of luminance gradients the output is directly proportional to the input; in a third range of luminance gradients, the output is inversely proportional to the input; wherein said enhanced luminance signal is the sum of the input and output of the peaking filter.

摘要翻译： 一种用于增强输入亮度信号的处理器，包括：用于计算与输入亮度信号相关联的色度边缘值的装置; 用于测量与输入亮度信号相关联的亮度梯度的装置; 用于处理输入亮度信号的峰值滤波器; 所述增益调整电路具有相对于所计算的色度边缘值可调节的增益函数，所述增益调整电路可操作以调整所述峰值滤波器的输出的幅度，其中：在亮度梯度的第一范围内，所述输出为 衰减版本的输入; 在第二个亮度梯度范围内，输出与输入成正比; 在第三个亮度梯度范围内，输出与输入成反比; 其中所述增强亮度信号是峰值滤波器的输入和输出的总和。

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。

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。