公开(公告)号：US09326007B2

公开(公告)日：2016-04-26

申请号：US13293978

申请日：2011-11-10

Applicant: Xiaoyun Deng ,  Patricia Wei Yin Chiang ,  Lucas Hui

Inventor： Xiaoyun Deng ,  Patricia Wei Yin Chiang ,  Lucas Hui

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

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176

Abstract: 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.

Abstract translation: 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：US08781248B2

公开(公告)日：2014-07-15

申请号：US12695220

申请日：2010-01-28

Applicant: Haiyun Wang ,  Lucas Hui

Inventor： Haiyun Wang ,  Lucas Hui

IPC: G06T5/00 ,  G06T5/40 ,  G06T5/50

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：US08587726B2

公开(公告)日：2013-11-19

申请号：US12655254

申请日：2009-12-23

Applicant: Yong Huang ,  Lucas Hui ,  Haiyun Wang ,  Fritz Lebowsky

Inventor： Yong Huang ,  Lucas Hui ,  Haiyun Wang ,  Fritz Lebowsky

IPC: H04N9/74

CPC classification number: G06T3/4007 ,  G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T2200/12 ,  G06T2207/10016 ,  G06T2207/20192

Abstract: Provided are a digital video rescaling system, a method of rescaling video images, and a chip comprising a computer executable medium embedded therein computer executable instructions for rescaling video images.

Abstract translation: 提供了一种数字视频重新缩放系统，一种重新缩放视频图像的方法，以及包括嵌入其中的计算机可执行介质的芯片，用于重新调整视频图像的计算机可执行指令。

公开(公告)号：US08098334B2

公开(公告)日：2012-01-17

申请号：US12406832

申请日：2009-03-18

Applicant: Yong Huang ,  Fritz Lebowsky ,  Haiyun Wang ,  Lucas Hui

Inventor： Yong Huang ,  Fritz Lebowsky ,  Haiyun Wang ,  Lucas Hui

IPC: H04N5/21

CPC classification number: G06T3/403 ,  G06T2200/28

Abstract: A video image processing system is described that generates the interpolated video images with sharp and jaggedness-free edges. A method of video image processing is also described that interpolates video images to generate the video images with sharp and jaggedness-free edges. The video image processing system receives and makes input image data available for further processing; analyzes the local features of the input image data; filters the input image data before performing interpolation process; modifies the phase value adaptive to the local edge distance; rescales the input image data in horizontal interpolation using the modified phase value; and rescales the horizontally interpolated image data in vertical interpolation using modified phase value.

Abstract translation: 描述了一种视频图像处理系统，其生成具有锐利和无锯齿边缘的内插视频图像。 还描述了一种视频图像处理方法，其内插视频图像以产生具有锐利和无锯齿边缘的视频图像。 视频图像处理系统接收并使输入图像数据可用于进一步处理; 分析输入图像数据的局部特征; 在进行插值处理之前对输入图像数据进行滤波; 修改自适应局部边缘距离的相位值; 使用修改的相位值在水平插值中调整输入图像数据; 并使用修改的相位值在垂直内插中重新调整水平内插图像数据。

公开(公告)号：US20070064816A1

公开(公告)日：2007-03-22

申请号：US11514723

申请日：2006-09-01

Applicant: Patricia Chiang ,  Lucas Hui

Inventor： Patricia Chiang ,  Lucas Hui

IPC: H04N7/12 ,  H04B1/66

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

Abstract: 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.

Abstract translation: 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：US06868091B1

公开(公告)日：2005-03-15

申请号：US09530465

申请日：1997-10-31

Applicant: Yau Wei Lucas Hui ,  Jean Louis Laborie ,  Gaël Lassure

Inventor： Yau Wei Lucas Hui ,  Jean Louis Laborie ,  Gaël Lassure

IPC: H04J3/06 ,  H04L12/70 ,  H04J3/00

CPC classification number: H04J3/0632 ,  H04L2012/5616 ,  H04L2012/5681

Abstract: Apparatus for depacketizing and aligning packetized input data. Data processing means receives the input data via an input memory and detects, identifies and determines payload size of a data packet of the input data. The data processing means generates a payload size signal indicative of the size of the payload. A word formatter receives units of the payload from the input memory and gathers and aligns these to form data words. A payload counter controls flow of input data from the input memory to the word formatter in accordance with the payload size signal. An input buffer receives the data words from the word formatter, stores these and transfers them to the data processing means for effecting data processing.

Abstract translation: 用于解包和对齐分组化输入数据的装置。 数据处理装置经由输入存储器接收输入数据，并检测，识别和确定输入数据的数据包的有效载荷大小。 数据处理装置产生指示有效负载大小的有效载荷大小信号。 单词格式化器从输入存储器接收有效载荷的单元，并收集并对齐它们以形成数据字。 有效负载计数器根据有效载荷大小信号控制输入数据从输入存储器到字格式化器的流程。 输入缓冲器从字格式化器接收数据字，存储这些数据字并将其传送到数据处理装置进行数据处理。

公开(公告)号：US06356870B1

公开(公告)日：2002-03-12

申请号：US09297395

申请日：1999-08-19

Applicant: Yau Wai Lucas Hui ,  Sapna George

Inventor： Yau Wai Lucas Hui ,  Sapna George

IPC: G10L1900

CPC classification number: H04H20/88 ,  G10L19/008 ,  G10L19/022

Abstract: A method and apparatus for decoding a bitstream (100) of transform coded multi-channel audio data. The bitstream is subjected to a block decoding process (101) to obtain for each input audio channel within the multi-channel audio data a corresponding block of frequency coefficients (102). Each block of frequency coefficients (102) is assigned a higher precision inverse transform or a lower precision inverse transform according to predetermined characteristics of the audio data represented by the block. The blocks of frequency coefficients are subsequently subjected to the assigned transform (105, 106) and an output audio signal (108) is generated in response to each of the higher and lower precision inverse transform processes.

Abstract translation: 一种用于对变换编码的多声道音频数据的比特流（100）进行解码的方法和装置。 对比特流进行块解码处理（101），以获得多通道音频数据内的每个输入音频通道相应的频率系数块（102）。 根据由块表示的音频数据的预定特性，将频率系数（102）的每个块分配更高精度的逆变换或较低精度的逆变换。 随后对频率系数的块进行分配变换（105,106），并且响应于每个较高和较低精度的逆变换处理产生输出音频信号（108）。

公开(公告)号：US06205430B1

公开(公告)日：2001-03-20

申请号：US09297112

申请日：1999-06-21

Applicant: Yau Wai Lucas Hui

Inventor： Yau Wai Lucas Hui

IPC: G10L2100

CPC classification number: H04H20/88

Abstract: A method and apparatus for decoding a multi-channel audio bitstream in which adaptive frequency domain downmixer (3) is used to downmix, according to long and shorter transform block length information (17), the decoded frequency coefficients of the multi-channel audio (12,13,14,15) such that the long and shorter transform block information is maintained separately within the mixed down left and right channels. In this way, the long and shorter transform block coefficients of the mixed down let and right channels can be inverse transformed adaptively (4,5,6,7) according to the long and shorter transform block information, and the results of the inverse transform of the long and short block of each the left and right channel added together (8,9) to form the total mixed down output of the left and right channel.

Abstract translation: 一种用于对多声道音频比特流进行解码的方法和装置，其中使用自适应频域降混混频器（3）根据长和较短的变换块长度信息（17）将多声道音频的解码频率系数 12,13,14,15），使得长和短的变换块信息在混合的左下和右声道内分开维持。 以这种方式，根据长短的变换块信息，混合向下通道和右通道的长短变换块系数可以自适应逆变换（4,5,6,7），并且逆变换的结果 将每个左右通道的长短块加在一起（8,9），形成左右通道的总混合输出。

公开(公告)号：US20140300601A1

公开(公告)日：2014-10-09

申请号：US13856342

申请日：2013-04-03

Applicant: Lucas Hui

Inventor： Lucas Hui

IPC: G06T15/50

CPC classification number: H04N13/334 ,  G06T5/008 ,  G06T5/50 ,  G06T2207/10021 ,  G06T2207/10024 ,  H04N13/122 ,  H04N13/133

Abstract: Methods and apparatus for enabling contrast adjustment to anaglyph images are described. Compensation techniques are employed to reduce ghosting artifacts that would otherwise be introduced by contrast adjustments to input images used to generate anaglyphs. The compensation techniques are applicable to various anaglyph imaging processes.

Abstract translation: 描述了用于使对角度调整到浮雕图像的方法和装置。 采用补偿技术来减少重影伪像，否则会通过对比度调整来引入用于产生浮雕的输入图像。 补偿技术适用于各种浮雕成像工艺。

公开(公告)号：US20130128122A1

公开(公告)日：2013-05-23

申请号：US13304118

申请日：2011-11-23

Applicant: Haiyun WANG ,  Lucas HUI

Inventor： Haiyun WANG ,  Lucas HUI

IPC: H04N5/21

CPC classification number: H04N5/21 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N5/142 ,  H04N19/86

Abstract: A method and apparatus are disclosed for identifying and removing banding artifacts (i.e., false contours) resulting from insufficient bit depth caused by digital image quantization, conversion, and/or compression. This method includes: explicitly identifying texture block and flat block; de-termination of filter window sizes with the consideration of handling transitions between texture block and flat block; de-banding filtering with edge protection; and noise shaping according to de-banding filter result.

Abstract translation: 公开了一种用于识别和去除由数字图像量化，转换和/或压缩引起的比特深度不足导致的带状伪影（即假轮廓）的方法和装置。 该方法包括：明确识别纹理块和平块; 考虑处理纹理块和平块之间的过渡的过滤器窗口尺寸的解除终止; 边缘保护去带滤波; 并根据去带滤波器的结果进行噪声整形。