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1. 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。

2. 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。

3. 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.

4. 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。

5. 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。

6. 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。

7. 发明申请

US20060078051A1 Adaptive intra-refresh for digital video encoding 有权
公开(公告)号：US20060078051A1
公开(公告)日：2006-04-13
申请号：US11025297
申请日：2004-12-28
申请人： Yi Liang , Khaled El-Maleh , Sharath Manjunath
发明人： Yi Liang , Khaled El-Maleh , Sharath Manjunath
IPC分类号： H04N11/04 , H04N7/12 , H04B1/66 , H04N11/02
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.

8. 发明申请

US20060268985A1 Deblock filtering techniques for video coding according to multiple video standards 有权
标题翻译：根据多种视频标准进行视频编码的去块滤波技术
公开(公告)号：US20060268985A1
公开(公告)日：2006-11-30
申请号：US11136980
申请日：2005-05-25
申请人： Yi Liang , Sharath Manjunath
发明人： Yi Liang , Sharath Manjunath
IPC分类号： H04B1/66
CPC分类号： H04N19/86 , H04N19/117 , H04N19/42 , H04N19/61 , H04N19/82
摘要： This disclosure describes deblock filtering techniques in which an in-loop deblock filter of a first codec is used as a post deblock filter of a second codec. A number of techniques are also described to facilitate input parameter adjustments and allow for the effective use of the filter with both codecs. The techniques can simplify the architecture of a device that includes multiple codecs operating according to different coding standards. Specifically, the different codecs can use the same deblocking filter regardless of whether the coding standard calls for in-loop filtering or whether post filtering is used. For example, a filter designed as an in-loop deblocking filter for a codec that complies with the ITU-T H.264 coding standard can be used as a post deblocking filter for MPEG-4 video.
摘要翻译：本公开描述了去块滤波技术，其中第一编解码器的循环去块滤波器被用作第二编解码器的后去块滤波器。还描述了许多技术来促进输入参数调整并允许有效地使用具有两个编解码器的滤波器。这些技术可以简化包括根据不同编码标准操作的多个编解码器的设备的架构。具体来说，不管编码标准是要求进行环路过滤还是使用后置过滤，不同的编解码器都可以使用相同的去块滤波器。例如，设计为符合ITU-T H.264编码标准的编解码器的内循环去块滤波器的滤波器可以用作MPEG-4视频的后去块滤波器。

9. 发明授权

US08045615B2 Deblock filtering techniques for video coding according to multiple video standards 有权
标题翻译：根据多种视频标准进行视频编码的去块滤波技术
公开(公告)号：US08045615B2
公开(公告)日：2011-10-25
申请号：US11136980
申请日：2005-05-25
申请人： Yi Liang , Sharath Manjunath
发明人： Yi Liang , Sharath Manjunath
IPC分类号： H04B1/66
CPC分类号： H04N19/86 , H04N19/117 , H04N19/42 , H04N19/61 , H04N19/82
摘要： This disclosure describes deblock filtering techniques in which an in-loop deblock filter of a first codec is used as a post deblock filter of a second codec. A number of techniques are also described to facilitate input parameter adjustments and allow for the effective use of the filter with both codecs. The techniques can simplify the architecture of a device that includes multiple codecs operating according to different coding standards. Specifically, the different codecs can use the same deblocking filter regardless of whether the coding standard calls for in-loop filtering or whether post filtering is used. For example, a filter designed as an in-loop deblocking filter for a codec that complies with the ITU-T H.264 coding standard can be used as a post deblocking filter for MPEG-4 video.
摘要翻译：本公开描述了去块滤波技术，其中第一编解码器的循环去块滤波器被用作第二编解码器的后去块滤波器。还描述了许多技术来促进输入参数调整并允许有效地使用具有两个编解码器的滤波器。这些技术可以简化包括根据不同编码标准操作的多个编解码器的设备的架构。具体来说，不管编码标准是要求进行环路过滤还是使用后置过滤，不同的编解码器都可以使用相同的去块滤波器。例如，设计为符合ITU-T H.264编码标准的编解码器的内循环去块滤波器的滤波器可以用作MPEG-4视频的后去块滤波器。

10. 发明授权

US10828550B2 Systems and methods for a smart trampoline jumping mat 有权
公开(公告)号：US10828550B2
公开(公告)日：2020-11-10
申请号：US15356392
申请日：2016-11-18
申请人： Yi Liang
发明人： Yi Liang
IPC分类号： A63B71/06 , A63B5/11 , A63B21/02 , G06Q50/00
摘要： A smart trampoline jumping mat system is designed that has a jumping mat, a sensor or a set of sensors, a processor with wireless communication unit, and a handheld device with an application program running from the smart handheld device. The sensor or set of sensors can be used for sensing activity of a person or an object on the bounce members. The processor is used to acquire deflection data from the sensor or sensor group. Deflection data is then manipulated by the processor prior to being sent to the handheld device. The handheld device may include a processor, graphical user interfaces (GUI) to show the move meat of the juniper, and a speaker to generate audible feedback. A method to compute the height of a bounce is also presented. The deflection value is combined with data based on jumper's weight, jump period, and size of trampoline mat to determine the height of a bounce.

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