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1. 发明申请

WO2010036722A1 CONTENT ADAPTIVE HISTOGRAM ENHANCEMENT 审中-公开
标题翻译：内容自适应组织增强
公开(公告)号：WO2010036722A1
公开(公告)日：2010-04-01
申请号：PCT/US2009/058072
申请日：2009-09-23
申请人： QUALCOMM Incorporated , DAI, Min , TENG, Chia-Yuan , LAI, King-Chung
发明人： DAI, Min , TENG, Chia-Yuan , LAI, King-Chung
IPC分类号： G06T5/40
CPC分类号： G06T5/40 , G06T5/009 , G06T2207/10016
摘要： This disclosure describes techniques for performing content adaptive histogram enhancement. In accordance with the content adaptive histogram enhancement techniques of this disclosure, a frame of digital image data, e.g., digital video data or digital still image data, is classified into one of a plurality of content classes based on histogram of pixel intensity values of the frame. The content classes may represent various levels of brightness, contrast, or the like. To classify the frame into the corresponding content class, a shape of the histogram may be analyzed using various histogram statistics. Based on the content class of the frame, the pixel intensity values of the frame are mapped to new pixel intensity values.
摘要翻译：本公开描述了用于执行内容自适应直方图增强的技术。根据本公开的内容自适应直方图增强技术，基于数字图像数据（例如数字视频数据或数字静止图像数据）的帧被分类为多个内容类别中的一个，基于帧。内容类可以表示各种亮度，对比度等级。为了将帧分类到相应的内容类中，可以使用各种直方图统计来分析直方图的形状。基于帧的内容类别，将帧的像素强度值映射到新的像素强度值。

2. 发明申请

WO2010027878A1 DUAL LOOKUP TABLE DESIGN FOR EDGE-DIRECTED IMAGE SCALING 审中-公开
标题翻译：双向图表设计用于边缘方向图像缩放
公开(公告)号：WO2010027878A1
公开(公告)日：2010-03-11
申请号：PCT/US2009/055098
申请日：2009-08-26
申请人： QUALCOMM INCORPORATED , QI, Yingyong , LAI, King-Chung , LI, Millie , TENG, Chia-Yuan
发明人： QI, Yingyong , LAI, King-Chung , LI, Millie , TENG, Chia-Yuan
IPC分类号： G06T3/40
CPC分类号： G06T3/403
摘要： In general, the disclosure describes various techniques for providing edge-directed scaling filters that may be used to scale image data. An example device includes a storage medium configured to store a first lookup table and a second lookup table, and one or more processors configured to obtain one or more gradient values that each indicates a gradient between values of at least two pixels in a source image. The one or more processors are also configured to generate one or more inverse gradient values from a first lookup table based on the gradient values, and to generate one or more edge-directed scaling filter coefficients from a second lookup table based on the inverse gradient values. The one or more processors may be further configured to generate an edge-directed filter based on the coefficients, and to apply the filter to the at least two pixels to generate an interpolated pixel.
摘要翻译：通常，本公开描述了用于提供可用于缩放图像数据的边缘定向缩放滤波器的各种技术。示例设备包括被配置为存储第一查找表和第二查找表的存储介质，以及被配置为获得一个或多个梯度值的一个或多个处理器，每个梯度值指示源图像中的至少两个像素的值之间的梯度。一个或多个处理器还被配置为基于梯度值从第一查找表生成一个或多个逆梯度值，并且基于逆梯度值从第二查找表生成一个或多个边缘定向缩放滤波器系数。一个或多个处理器可以进一步被配置为基于系数生成边缘导向滤波器，并且将滤波器应用于至少两个像素以产生内插像素。

3. 发明申请

WO2003094528A1 EARLY EXIT TECHNIQUES FOR DIGITAL VIDEO MOTION ESTIMATION 审中-公开
标题翻译：数字视频运动估计的早期退出技术
公开(公告)号：WO2003094528A1
公开(公告)日：2003-11-13
申请号：PCT/US2003/013890
申请日：2003-05-02
申请人： QUALCOMM INCORPORATED
发明人： MAURO, II, Anthony, Patrick , CHANG, Chienchung , LAI, King-Chung
IPC分类号： H04N7/26
CPC分类号： H04N19/156 , H04N19/51 , H04N19/53 , H04N19/557
摘要： This disclosure is directed to encoding techniques that can be used to improve encoding of digital video data. The techniques can be implemented by an encoder of a digital video device in order to reduce the number of computations and possibly reduce power consumption during video encoding. More specifically, video encoding techniques are described which utilize one or more programmable thresholds in order to terminate the execution of various computations when the computations would be unlikely to improve the encoding. By terminating computations prematurely, the amount of processing required for video encoding can be reduced, and power can be conserved.
摘要翻译：本公开涉及可用于改进数字视频数据的编码的编码技术。这些技术可以由数字视频设备的编码器来实现，以减少计算次数并且可能降低视频编码期间的功耗。更具体地，描述了当计算不可能改进编码时，利用一个或多个可编程阈值来终止各种计算的执行的视频编码技术。通过过早地终止计算，可以减少视频编码所需的处理量，并且可以节省功率。

4. 发明申请

WO2008021835A1 ADAPTIVE SPATIAL VARIANT INTERPOLATION FOR IMAGE UPSCALING 审中-公开
标题翻译：适用于空间变化的图像放大插值
公开(公告)号：WO2008021835A1
公开(公告)日：2008-02-21
申请号：PCT/US2007/075386
申请日：2007-08-07
申请人： QUALCOMM INCORPORATED , LIANG, Yi , LAI, King-Chung , EL-MALEH, Khaled Helmi
发明人： LIANG, Yi , LAI, King-Chung , EL-MALEH, Khaled Helmi
IPC分类号： G06T3/40
CPC分类号： G06T3/4007
摘要： This disclosure describes adaptive spatial variant interpolation (SVI) techniques for image upscaling. In various embodiments, the interpolation techniques described in this disclosure may support low complexity upscaling of image while promoting high image quality, including enhanced sharpness, higher contrast and more accurate interpolation. The interpolation techniques may be applied using generalized finite impulse response (FIR) filters. In some embodiments, the interpolation techniques may be content-adaptive to provide more accurate interpolation while suppressing significant artifacts associated with sharp edges. In addition, the interpolation techniques may be readily applicable to upscaling of color imagery and video, e.g., in both YCbCr (luminance, blue chrominance, red chrominance) and RGB (red, green, blue) formats.
摘要翻译：本公开描述了用于图像升高的自适应空间变异插值（SVI）技术。在各种实施例中，本公开中描述的内插技术可以支持图像的低复杂度升高，同时促进高图像质量，包括增强的清晰度，更高的对比度和更精确的插值。可以使用广义有限脉冲响应（FIR）滤波器来应用插值技术。在一些实施例中，插值技术可以是内容自适应的，以提供更精确的内插，同时抑制与锐利边缘相关联的显着伪像。此外，插值技术可以容易地应用于例如YCbCr（亮度，蓝色色度，红色色度）和RGB（红色，绿色，蓝色）格式的彩色图像和视频的放大。

5. 发明申请

WO2006014268A1 MOTION ESTIMATION IN VIDEO COMPRESSION SYSTEMS 审中-公开
标题翻译：视频压缩系统中的运动估计
公开(公告)号：WO2006014268A1
公开(公告)日：2006-02-09
申请号：PCT/US2005/022935
申请日：2005-06-28
申请人： QUALCOMM INCORPORATED , MOHAN, Sumit , LAI, King-Chung , MALAYATH, Narendranath , SINGH, Jatinder , MAURO, Anthony, Patrick, II
发明人： MOHAN, Sumit , LAI, King-Chung , MALAYATH, Narendranath , SINGH, Jatinder , MAURO, Anthony, Patrick, II
IPC分类号： H04N7/26
CPC分类号： H04N5/145 , H04N19/43 , H04N19/533
摘要： Motion estimation in video compressions systems. A programmable motion estimator may be used to estimate a motion vector for a macroblock in a current frame by searching for a matching macroblock in a previous frame. A controller may be used to program the motion estimator to perform a particular search.
摘要翻译：视频压缩系统中的运动估计。可编程运动估计器可以用于通过搜索前一帧中的匹配宏块来估计当前帧中的宏块的运动矢量。可以使用控制器对运动估计器进行编程以执行特定搜索。

6. 发明申请

WO2018194816A1 SYSTEM AND METHOD FOR INTELLIGENT DATA/FRAME COMPRESSION IN A SYSTEM ON A CHIP 审中-公开
公开(公告)号：WO2018194816A1
公开(公告)日：2018-10-25
申请号：PCT/US2018/025240
申请日：2018-03-29
申请人： QUALCOMM INCORPORATED
发明人： GADELRAB, Serag , CHIU, Chinchuan , KHAN, Moinul , ERNEWEIN, Kyle , LONGO, Tom , BOOTH, Simon , VARIA, Meghal , ALEKSIC, Milivoje , LAI, King-Chung
IPC分类号： H04N19/85
摘要： An exemplary method for intelligent compression defines a threshold value for a key performance indicator. Based on the key performance indicator value, data blocks generated by a producer component may be scaled down to reduce power and/or bandwidth consumption when being compressed according to a lossless compression module. The compressed data blocks are then stored in a memory component along with metadata that signals the scaling factor used prior to compression. Consumer components later retrieving the compressed data blocks from the memory component may decompress the data blocks and upscale, if required, based on the scaling factor signaled by the metadata.

7. 发明申请

WO2009015217A2 SCALING FILTER FOR VIDEO SHARPENING 审中-公开
标题翻译：用于视频锐化的缩放滤波器
公开(公告)号：WO2009015217A2
公开(公告)日：2009-01-29
申请号：PCT/US2008/070907
申请日：2008-07-23
申请人： QUALCOMM Incorporated , TENG, Chia-Yuan , LAI, King-Chung
发明人： TENG, Chia-Yuan , LAI, King-Chung
IPC分类号： G06T5/00 , G06T3/40 , H04N5/00
CPC分类号： G06T3/4007 , G06T5/004 , G06T2207/20016
摘要： A device has a single scaling filter to filter a video signal once to perform both sharpening and scaling. A memory stores original scaling filter coefficients for the scaling filter. An integrated circuit calculates new sharpening-scaling filter coefficients derived from the original scaling filter coefficients and one of sharpening filter coefficients for a sharpening filter and a sharpening strength and applies the new sharpening-scaling filter coefficients to the single scaling filter.
摘要翻译：设备具有一个缩放滤波器来过滤视频信号一次以执行锐化和缩放。存储器存储缩放滤波器的原始缩放滤波器系数。集成电路计算从原始缩放滤波器系数和用于锐化滤波器和锐化强度的锐化滤波器系数之一导出的新的锐化缩放滤波器系数，并将新的锐化缩放滤波器系数应用于单个缩放滤波器。

8. 发明申请

WO2003107681A3 VIDEO ENCODING WITH FAST MOTION ESTIMATION 审中-公开
公开(公告)号：WO2003107681A3
公开(公告)日：2003-12-24
申请号：PCT/US2003/019401
申请日：2003-06-18
申请人： QUALCOMM INCORPORATED
发明人： LAI, King-Chung , SIH, Gilbert Christopher , CHANG, Chienchung , MAURO, II, Anthony Patrick
IPC分类号： H04N7/26
摘要： This disclosure describes video encoding techniques capable of reducing the number of processing cycles and memory transfers necessary to encode a video sequence. In this manner, the disclosed video encoding techniques may increase video encoding speed and reduce power consumption. In general, the video encoding techniques make use of a candidate memory that stores video blocks in columns corresponding to a search space for a motion estimation routine. A memory control unit addresses the candidate memory to retrieve multiple pixels in parallel for simultaneous comparison to pixels in a video block to be encoded, e.g., using Sum of Absolute Difference (SAD) or Sum of Squared Difference (SSD) techniques. A difference processor performs the parallel calculations. In addition, for subsequent video blocks to be encoded, the candidate memory can be incrementally updated by loading a new column of video blocks, rather than reloading the entire search space.

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