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1. 发明授权

US09013511B2 Adaptive spatial variant interpolation for image upscaling 有权
标题翻译：用于图像放大的自适应空间变异插值
公开(公告)号：US09013511B2
公开(公告)日：2015-04-21
申请号：US11502233
申请日：2006-08-09
申请人： Yi Liang , King-Chung Lai , Khaled Helmi El-Maleh
发明人： Yi Liang , King-Chung Lai , Khaled Helmi El-Maleh
IPC分类号： G09G5/00 , 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。

2. 发明申请

US20080036792A1 Adaptive spatial variant interpolation for image upscaling 有权
标题翻译：用于图像放大的自适应空间变异插值
公开(公告)号：US20080036792A1
公开(公告)日：2008-02-14
申请号：US11502233
申请日：2006-08-09
申请人： Yi Liang , King-Chung Lai , Khaled Helmi El-Maleh
发明人： Yi Liang , King-Chung Lai , Khaled Helmi El-Maleh
IPC分类号： G09G5/00
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。

3. 发明授权

US08948266B2 Adaptive intra-refresh for digital video encoding 有权
标题翻译：适用于数字视频编码的内部刷新
公开(公告)号：US08948266B2
公开(公告)日：2015-02-03
申请号：US11025297
申请日：2004-12-28
申请人： Yi Liang , Khaled Helmi El-Maleh , Sharath Manjunath
发明人： Yi Liang , Khaled Helmi El-Maleh , Sharath Manjunath
IPC分类号： H04N7/12 , H04N19/176 , H04N19/164 , H04N19/89 , H04N19/14 , H04N19/107 , H04N19/172 , H04N19/147 , H04N19/61
CPC分类号： H04N19/00278 , H04N19/107 , H04N19/14 , H04N19/147 , H04N19/164 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/89
摘要： An adaptive Intra-refresh (IR) technique for digital video encoding adjusts IR rate based on video content, or a combination of video content and channel condition. The IR rate may be applied at the frame level or macroblock (MB) level. At the frame level, the IR rate specifies the percentage of MBs to be Intra-coded within the frame. At the MB level, the IR rate defines a statistical probability that a particular MB is to be Intra-coded. The IR rate is adjusted in proportion to a combined metric that weighs estimated channel loss probability, frame-to-frame variation, and texture information. The IR rate can be determined using a close-form solution that requires relatively low implementation complexity. For example, such a close-form does not require iteration or an exhaustive search. In addition, the IR rate can be determined from parameters that are available before motion estimation and compensation are performed.
摘要翻译：用于数字视频编码的自适应内部刷新（IR）技术基于视频内容或视频内容和频道条件的组合来调整IR速率。可以在帧级或宏块（MB）级应用IR速率。在帧级别，IR速率指定帧内帧内编码的百分比。在MB级别，IR率定义了特定MB被内部编码的统计概率。 IR速率与重量估计的信道丢失概率，帧到帧变化和纹理信息的组合度量成比例地调整。 IR速率可以使用需要较低实现复杂度的紧密形式的解决方案来确定。例如，这种关闭形式不需要迭代或穷尽搜索。另外，可以在执行运动估计和补偿之前可用的参数来确定IR速率。

4. 发明授权

US09667980B2 Content-adaptive background skipping for region-of-interest video coding 有权
公开(公告)号：US09667980B2
公开(公告)日：2017-05-30
申请号：US11200407
申请日：2005-08-09
申请人： Haohong Wang , Khaled Helmi El-Maleh , Yi Liang
发明人： Haohong Wang , Khaled Helmi El-Maleh , Yi Liang
IPC分类号： H04N7/18 , H04N19/196 , H04N19/147 , H04N19/172 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/14 , H04N19/137 , H04N19/154 , H04N19/162 , H04N19/177 , H04N19/17 , H04N19/587
CPC分类号： H04N19/198 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/147 , H04N19/154 , H04N19/162 , H04N19/17 , H04N19/172 , H04N19/177 , H04N19/196 , H04N19/587
摘要： The disclosure is directed to techniques for content-adaptive background skipping for region-of-interest (ROI) video coding. The techniques may be useful in video telephony (VT) applications such as video streaming and videoconferencing, and especially useful in low bit-rate wireless communication applications, such as mobile VT. The disclosed techniques analyze content information of a video frame to dynamically determine whether to skip a non-ROI area within the frame. For example, the skipping determination may be based on content activity, such as ROI shape deformation, ROI motion, non-ROI motion, non-ROI texture complexity, and accumulated distortion due to non-ROI skipping. The skip determination may operate in conjunction with either frame-level or macroblock-level bit allocation.

5. 发明授权

US08514933B2 Adaptive frame skipping techniques for rate controlled video encoding 有权
标题翻译：用于速率控制视频编码的自适应跳帧技术
公开(公告)号：US08514933B2
公开(公告)日：2013-08-20
申请号：US11193249
申请日：2005-07-29
申请人： Yi Liang , Khaled Helmi El-Maleh
发明人： Yi Liang , Khaled Helmi El-Maleh
IPC分类号： H04N7/12
CPC分类号： H04N19/146 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/61
摘要： The disclosure is directed to adaptive frame skipping techniques for rate controlled video encoding of a video sequence. According to the disclosed techniques, an encoder performs frame skipping in an intelligent manner that can improve video quality of the encoded sequence relative to encoding using conventional frame skipping. In particular, the disclosed frame skipping scheme is adaptive and considers motion activity of the video frames in order to identify certain frames that can be skipped without sacrificing significant video quality. The described frame skipping techniques may take into account the tradeoff between spatial and temporal quality of different video frames. In this manner, the techniques can allocate limited resources between the spatial and temporal quality in a way that can improve the visual appearance of a video sequence.
摘要翻译：本公开涉及用于视频序列的速率控制视频编码的自适应跳帧技术。根据所公开的技术，编码器以智能的方式执行帧跳过，其可以相对于使用传统的跳帧的编码来提高编码序列的视频质量。特别地，所公开的帧跳过方案是自适应的，并且考虑视频帧的运动活动，以便识别可以跳过的某些帧而不牺牲重要的视频质量。所描述的跳帧技术可以考虑不同视频帧的空间和时间质量之间的折衷。以这种方式，这些技术可以以可以改善视频序列的视觉外观的方式在空间和时间质量之间分配有限的资源。

6. 发明授权

US07881386B2 Methods and apparatus for performing fast mode decisions in video codecs 有权
标题翻译：用于在视频编解码器中执行快速模式决定的方法和装置
公开(公告)号：US07881386B2
公开(公告)日：2011-02-01
申请号：US10957512
申请日：2004-09-30
申请人： Yi Liang , Khaled Helmi El-Maleh
发明人： Yi Liang , Khaled Helmi El-Maleh
IPC分类号： H04N7/12
CPC分类号： H04N19/164 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/136 , H04N19/146 , H04N19/156 , H04N19/162 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/61
摘要： Methods and apparatus are presented for reducing the computational complexity of coding mode decisions by exploiting the correlations across spatially and/or temporally close coding mode decisions. A mode decision for a current macroblock is based on the mode decisions of spatially and/or temporarily close macroblocks.
摘要翻译：提出了通过利用空间和/或时间上紧密的编码模式决定之间的相关性来降低编码模式决策的计算复杂度的方法和装置。用于当前宏块的模式决定基于空间和/或临时关闭宏块的模式决定。

7. 发明授权

US09502909B2 Power management for electronic devices 有权
标题翻译：电子设备电源管理
公开(公告)号：US09502909B2
公开(公告)日：2016-11-22
申请号：US12854850
申请日：2010-08-11
申请人： Khaled Helmi El-Maleh , Yair Karmi , Sandip S. Minhas , Srinivas Raghavan , Peng Li , David Maldonado , MaryBeth Selby , Saumitra Mohan Das
发明人： Khaled Helmi El-Maleh , Yair Karmi , Sandip S. Minhas , Srinivas Raghavan , Peng Li , David Maldonado , MaryBeth Selby , Saumitra Mohan Das
IPC分类号： H02J7/00 , G06Q30/02 , G06Q30/06 , H02J7/02 , H02J7/04 , H02J17/00 , H04B5/00
CPC分类号： H02J7/0004 , G06Q30/0267 , G06Q30/0601 , H02J7/025 , H02J7/041 , H02J17/00 , H02J50/12 , H02J50/20 , H02J50/40 , H02J50/80 , H02J50/90 , H04B5/0037
摘要： Exemplary embodiments are directed to wireless power management. A method may include detecting one or more wireless chargers for charging an energy storage device of one or more monitored energy storage devices if the energy storage device drops below a threshold value. Moreover, the method may include selecting a charging scheme for an electronic device associated with the energy storage device.
摘要翻译：示例性实施例涉及无线电力管理。一种方法可以包括检测一个或多个无线充电器，用于对一个或多个被监视的能量存储装置的能量存储装置进行充电，如果能量存储装置降低到阈值以下。此外，该方法可以包括选择与能量存储设备相关联的电子设备的计费方案。

8. 发明授权

US08977063B2 Region-of-interest extraction for video telephony 有权
标题翻译：视频电话利益提取领域
公开(公告)号：US08977063B2
公开(公告)日：2015-03-10
申请号：US11182432
申请日：2005-07-15
申请人： Yen-Chi Lee , Khaled Helmi El-Maleh , Ming-Chang Tsai
发明人： Yen-Chi Lee , Khaled Helmi El-Maleh , Ming-Chang Tsai
IPC分类号： G06K9/36 , H04N7/14 , H04N7/173 , H04N21/4728 , H04N21/4788 , H04N19/102 , H04N19/162 , H04N19/137 , H04N19/46
CPC分类号： H04N7/147 , H04L65/1083 , H04L65/403 , H04L65/4092 , H04L65/602 , H04N7/173 , H04N19/102 , H04N19/137 , H04N19/162 , H04N19/46 , H04N21/4728 , H04N21/4788
摘要： The disclosure is directed to techniques for region-of-interest (ROI) processing for video telephony (VT) applications. According to the disclosed techniques, a recipient device defines ROI information for video information transmitted by a sender device, i.e., far-end video information. The recipient device transmits the ROI information to the sender device. Using the ROI information transmitted by the recipient device, the sender device applies preferential encoding to an ROI within a video scene. ROI extraction may be applied to process a user description of a region of interest (ROI) to generate information specifying the ROI based on the description. The user description may be textual, graphical, or speech-based. An extraction module applies appropriate processing to generated the ROI information from the user description. The extraction module may locally reside with a video communication device, or reside in a distinct intermediate server configured for ROI extraction.
摘要翻译：本公开涉及用于视频电话（VT）应用的感兴趣区域（ROI）处理技术。根据所公开的技术，接收者设备定义由发送者设备发送的视频信息的ROI信息，即远端视频信息。收件人设备将ROI信息发送给发送者设备。使用由收件人设备发送的ROI信息，发送者设备对视频场景内的ROI应用优先编码。可以应用ROI提取来处理感兴趣区域（ROI）的用户描述，以基于描述生成指定ROI的信息。用户描述可以是文本的，图形的或基于语音的。提取模块应用适当的处理从用户描述生成ROI信息。提取模块可以本地驻留有视频通信设备，或者驻留在配置用于ROI提取的不同中间服务器中。

9. 发明授权

US08861601B2 Encoder-assisted adaptive video frame interpolation 有权
标题翻译：编码器辅助自适应视频帧插值
公开(公告)号：US08861601B2
公开(公告)日：2014-10-14
申请号：US11112531
申请日：2005-04-22
申请人： Gokce Dane , Khaled Helmi El-Maleh , Yen-Chi Lee
发明人： Gokce Dane , Khaled Helmi El-Maleh , Yen-Chi Lee
IPC分类号： H04N7/18 , H04N19/61 , H04N19/46 , H04N19/587 , H04N19/172 , H04N19/132 , H04N19/51
CPC分类号： H04N19/176 , H04N19/132 , H04N19/172 , H04N19/46 , H04N19/51 , H04N19/513 , H04N19/587 , H04N19/61
摘要： The disclosure is directed to techniques for encoder-assisted adaptive interpolation of video frames. According to the disclosed techniques, an encoder generates information to assist a decoder in interpolation of a skipped video frame, i.e., an S frame. The information permits the decoder to reduce visual artifacts in the interpolated frame and thereby achieve improved visual quality. The information may include interpolation equation labels that identify selected interpolation equations to be used by the decoder for individual video blocks. As an option, to conserve bandwidth, the equation labels may be transmitted for only selected video blocks that meet a criterion for encoder-assisted interpolation. Other video blocks without equation labels may be interpolated according to a default interpolation technique.
摘要翻译：本公开涉及视频帧的编码器辅助自适应插值技术。根据所公开的技术，编码器生成信息以帮助解码器插入跳过的视频帧，即S帧。该信息允许解码器减少内插帧中的视觉伪影，从而实现改善的视觉质量。该信息可以包括识别用于各个视频块的由解码器使用的所选内插方程的内插方程标签。作为选择，为了节省带宽，可以仅针对满足编码器辅助插值的准则的所选择的视频块来发送等式标签。没有等式标签的其他视频块可以根据默认内插技术进行内插。

10. 发明申请

US20130033564A1 PICTURE-IN-PICTURE PROCESSING FOR VIDEO TELEPHONY 有权
标题翻译：图像图像处理视频电话
公开(公告)号：US20130033564A1
公开(公告)日：2013-02-07
申请号：US13290060
申请日：2011-11-05
申请人： Yen-Chi Lee , Khaled Helmi El-Maleh , Ming-Chang Tsai
发明人： Yen-Chi Lee , Khaled Helmi El-Maleh , Ming-Chang Tsai
IPC分类号： H04N7/14
CPC分类号： H04N7/147 , H04N2007/145
摘要： The disclosure is directed to techniques for picture-in-picture (PIP) processing for video telephony (VT). According to the disclosed techniques, a local video communication device transmits PIP information to a remote video communication device. Using the PIP information, the remote video communication device applies preferential encoding to non-PIP regions of video transmitted to the local video communication device.
摘要翻译：本公开涉及用于视频电话（VT）的画中画（PIP）处理技术。根据所公开的技术，本地视频通信设备将PIP信息发送到远程视频通信设备。使用PIP信息，远程视频通信设备对发送到本地视频通信设备的视频的非PIP区域应用优先编码。

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