公开(公告)号：US20120170864A1

公开(公告)日：2012-07-05

申请号：US13332949

申请日：2011-12-21

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

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

IPC: G06K9/40

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：US20120155783A1

公开(公告)日：2012-06-21

申请号：US12970817

申请日：2010-12-16

Applicant: Yong Huang ,  Lucas Hui

Inventor： Yong Huang ,  Lucas Hui

IPC: G06K9/40

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，用于向定向抗混叠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：US07623576B1

公开(公告)日：2009-11-24

申请号：US09914171

申请日：1999-02-26

Applicant: Yau Wei Lucas Hui ,  Kwong Huang Goh

Inventor： Yau Wei Lucas Hui ,  Kwong Huang Goh

IPC: H04N7/18

CPC classification number: H04N7/0112 ,  H04N5/147 ,  H04N19/142 ,  H04N19/179 ,  H04N19/85 ,  H04N19/87

Abstract: A method of processing video data to detect field characteristics of the data, said data having a plurality of fields, including the steps of: comparing first and second fields, said first field being a successive field of said second field; comparing pixel values of respective sub-blocks of said first field and a third field, said second field being a successive field of said third field; determining whether said first field is an interlaced field or a progressive field with respect to a successive field of said first field based on said steps of comparing.

Abstract translation: 一种处理视频数据以检测数据的场特性的方法，所述数据具有多个场，包括以下步骤：比较第一场和第二场，所述第一场是所述第二场的连续场; 比较所述第一场和第三场的各个子块的像素值，所述第二场是所述第三场的连续场; 基于所述比较步骤，确定所述第一场是否是相对于所述第一场的连续场的隔行场或逐行场。

公开(公告)号：US20070121730A1

公开(公告)日：2007-05-31

申请号：US11461611

申请日：2006-08-01

Applicant: Patricia Chiang ,  Lucas Hui

Inventor： Patricia Chiang ,  Lucas Hui

IPC: H04N11/04 ,  H04N7/12

CPC classification number: H04N19/423 ,  H04N19/61

Abstract: 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.

Abstract translation: 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：US20070081590A1

公开(公告)日：2007-04-12

申请号：US11525202

申请日：2006-09-21

Applicant: Kwong-Huang Goh ,  Lucas Hui

Inventor： Kwong-Huang Goh ,  Lucas Hui

IPC: H04N11/04 ,  H04N7/12

CPC classification number: H04N19/198 ,  H04N19/126 ,  H04N19/137 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/152 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

Abstract: A macro-block (MB) quantization reactivity compensation method for a video encoder is provided. The method calculates a reference picture quantization value based on a calculated picture complexity. This predicted reference quantization is combined with the bits-used reactive MB reference quantization value to determine the final MB reference quantization value. This MB reference quantization value is also made adaptive to the VBV buffer fullness, as well as to the predicted change of the current picture complexity. A video encoder and an article of manufacture that comprises computer readable program code for execution of the method are also provided.

Abstract translation: 提供了一种用于视频编码器的宏块（MB）量化反应性补偿方法。 该方法基于计算出的图像复杂度来计算参考图像量化值。 将该预测参考量化与使用位无效MB参考量化值组合以确定最终的MB参考量化值。 该MB参考量化值也适应于VBV缓冲器充满度以及当前图像复杂度的预测变化。 还提供了包括用于执行该方法的计算机可读程序代码的视频编码器和制品。

公开(公告)号：US06982762B1

公开(公告)日：2006-01-03

申请号：US09701089

申请日：1998-05-30

Applicant: Yau Wai Lucas Hui

Inventor： Yau Wai Lucas Hui

IPC: H04N7/18

CPC classification number: H04N19/198 ,  H04N19/115 ,  H04N19/124 ,  H04N19/137 ,  H04N19/146 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/159 ,  H04N19/172 ,  H04N19/196 ,  H04N19/577 ,  H04N19/61

Abstract: A method and apparatus for encoding pictures of a moving pictures sequence according to an overall target bit-rate, such as in a MPEG video encoder. Each picture has an assigned picture coding type for which a quality factor is adaptively determined according to past bit usages, so that bits can be adaptively allocated amongst picture types for optimizing visual quality of the encoded pictures.

Abstract translation: 一种用于根据诸如MPEG视频编码器中的总目标比特率对运动图像序列的图像进行编码的方法和装置。 每个图像具有分配的图像编码类型，其根据过去的位用法自适应地确定品质因数，使得可以在图像类型之间自适应地分配比特，以优化编码图像的视觉质量。

公开(公告)号：US20050094725A1

公开(公告)日：2005-05-05

申请号：US10700877

申请日：2003-11-04

Applicant: Lucas Hui

Inventor： Lucas Hui

IPC: H04B1/66 ,  H04N7/12 ,  H04N7/26 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N19/179 ,  H04N19/114 ,  H04N19/124 ,  H04N19/136 ,  H04N19/152 ,  H04N19/172 ,  H04N19/46

Abstract: An apparatus, method, and computer program encode video information. The apparatus, method, and computer program use a global deviation for previously encoded video information to encode additional video information. The global deviation represents a difference between (1) at least one expected characteristic of the previously encoded video information if encoded at a target bit-rate and (2) at least one actual characteristic of the previously encoded video information. The apparatus, method, and computer program use the global deviation to adjust at least one encoding parameter, which is then used to encode the additional video information.

Abstract translation: 设备，方法和计算机程序对视频信息进行编码。 装置，方法和计算机程序使用先前编码的视频信息的全局偏差来编码附加视频信息。 全局偏差表示（1）以目标比特率编码的先前编码的视频信息的至少一个期望特征和（2）先前编码的视频信息的至少一个实际特性之间的差异。 装置，方法和计算机程序使用全局偏差来调整至少一个编码参数，然后将其用于对附加视频信息进行编码。

公开(公告)号：US06876702B1

公开(公告)日：2005-04-05

申请号：US09807497

申请日：1998-10-13

Applicant: Yau Wai Lucas Hui ,  Hong Lye Oh ,  Jean-Michel Bard

Inventor： Yau Wai Lucas Hui ,  Hong Lye Oh ,  Jean-Michel Bard

IPC: H04N7/26 ,  H04N7/12

CPC classification number: H04N19/51

Abstract: A method and apparatus of encoding digital video, for example according to the ISO/IEC MPEG standards (ISO/IEC 11172-2 MPEG-1 and ISO/IEC 13818-2 MPEG-2), which employs a local motion estimator for determining respective local motion vectors for groups of adjacent macroblocks in a picture. A local motion vector is determined for each row of macroblocks in a picture from the motion vectors of the macroblocks in that row. Then, for macroblocks in the corresponding row of a subsequently coded picture, the local motion vector can be used to select the search window used for determining the motion vectors. The local motion estimator improves search range and accuracy of macroblock motion vector detection without increasing the search window accessing bandwidth and caching requirement, and computation lode of searching.

Abstract translation: 根据ISO / IEC MPEG标准（ISO / IEC 11172-2 MPEG-1和ISO / IEC 13818-2 MPEG-2）对数字视频进行编码的方法和装置，其采用局部运动估计器来确定各自的 用于图片中的相邻宏块组的局部运动矢量。 根据该行中的宏块的运动矢量来确定图像中的每一行宏块的局部运动矢量。 然后，对于随后编码图像的相应行中的宏块，可以使用局部运动矢量来选择用于确定运动矢量的搜索窗口。 局部运动估计器提高了宏块运动矢量检测的搜索范围和精度，而不增加搜索窗口访问带宽和缓存要求，以及搜索的计算量。

公开(公告)号：US20050007497A1

公开(公告)日：2005-01-13

申请号：US10847205

申请日：2004-05-17

Applicant: Yong Huang ,  Patricia Chiang ,  Lucas Hui ,  Kwong Goh

Inventor： Yong Huang ,  Patricia Chiang ,  Lucas Hui ,  Kwong Goh

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

CPC classification number: H04N9/68 ,  H04N9/77

Abstract: 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.

Abstract translation: 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：US06654417B1

公开(公告)日：2003-11-25

申请号：US09600935

申请日：2000-10-11

Applicant: Yau Wei Lucas Hui

Inventor： Yau Wei Lucas Hui

IPC: H04N712

CPC classification number: H04N19/154 ,  H04N19/105 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/152 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/60 ,  H04N19/61

Abstract: A method and apparatus for encoding digital video utilizing a single pass variable bit rate encoding procedure. An encoding quality is set and the bit rate for encoding blocks or frames in the sequence of moving pictures is determined to achieve the selected quality according to the complexity of the video sequence. The bit rate is constrained by predetermined upper and lower bit rate limits.

Abstract translation: 一种使用单程可变比特率编码程序对数字视频进行编码的方法和装置。 设置编码质量，并且确定运动图像序列中的块或帧的比特率，以根据视频序列的复杂度来实现所选择的质量。 比特率受到预定的上限和下限比特率限制的限制。