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1. 发明申请

WO2014158211A1 CUSTOM DATA INDICATING NOMINAL RANGE OF SAMPLES OF MEDIA CONTENT 审中-公开
标题翻译：指定媒体内容样本的标准格式的自定义数据
公开(公告)号：WO2014158211A1
公开(公告)日：2014-10-02
申请号：PCT/US2013/058351
申请日：2013-09-06
申请人： MICROSOFT CORPORATION
发明人： WU, Yongjun , THUMPUDI, Naveen , SADHWANI, Shyam
IPC分类号： H04N21/2343 , H04N21/235 , H04N21/2383 , H04N21/84
CPC分类号： H04N21/2383 , H04N21/234309 , H04N21/2351 , H04N21/23614 , H04N21/4382 , H04N21/440218 , H04N21/84
摘要： A media processing tool adds custom data to an elementary media bitstream or media container. The custom data indicates nominal range of samples of media content, but the meaning of the custom data is not defined in the codec format or media container format. For example, the custom data indicates the nominal range is full range or limited range. For playback, a media processing tool parses the custom data and determines an indication of media content type. A rendering engine performs color conversion operations whose logic changes based at least in part on the media content type. In this way, a codec format or media container format can in effect be extended to support full nominal range media content as well as limited nominal range media content, and hence preserve full or correct color fidelity, while maintaining backward compatibility and conformance with the codec format or media container format.
摘要翻译：媒体处理工具将自定义数据添加到基本媒体比特流或媒体容器。自定义数据表示媒体内容的样本的标称范围，但自定义数据的含义未以编解码器格式或媒体容器格式定义。例如，自定义数据表示标称范围是全范围或有限范围。对于播放，媒体处理工具解析定制数据并确定媒体内容类型的指示。渲染引擎执行颜色转换操作，其逻辑至少部分地基于媒体内容类型而改变。以这种方式，编解码器格式或媒体容器格式实际上可以被扩展以支持完整的标称范围的媒体内容以及有限的标称范围的媒体内容，并因此保持完全或正确的色彩保真度，同时保持向后的兼容性和与编解码器的一致性格式或媒体容器格式。

2. 发明申请

WO2011100174A2 GENERIC PLATFORM VIDEO IMAGE STABILIZATION 审中-公开
标题翻译：通用平台视频图像稳定
公开(公告)号：WO2011100174A2
公开(公告)日：2011-08-18
申请号：PCT/US2011/023839
申请日：2011-02-05
申请人： MICROSOFT CORPORATION
发明人： WU, Yongjun , BORISOV, Nikola , ZHAO, Weidong , SADHWANI, Shyam , THUMPUDI, Naveen
IPC分类号： H04N5/235
CPC分类号： H04N5/23267 , G06T3/0093 , G06T7/207 , H04L67/10 , H04N5/145 , H04N5/23248 , H04N5/23254 , H04N21/4223 , H04N21/44
摘要： Video image stabilization provides better performance on a generic platform for computing devices by evaluating available multimedia digital signal processing components, and selecting the available components to utilize according to a hierarchy structure for video stabilization performance for processing parts of the video stabilization. The video stabilization has improved motion vector estimation that employs refinement motion vector searching according to a pyramid block structure relationship starting from a downsampled resolution version of the video frames. The video stabilization also improves global motion transform estimation by performing a random sample consensus approach for processing the local motion vectors, and selection criteria for motion vector reliability. The video stabilization achieves the removal of hand shakiness smoothly by real-time one-pass or off-line two-pass temporal smoothing with error detection and correction.
摘要翻译：视频图像稳定通过评估可用的多媒体数字信号处理部件并选择可用部件以根据用于视频稳定性能的层级结构来利用以用于处理部分视频稳定。视频稳定化已经改进了运动矢量估计，该运动矢量估计使用根据从视频帧的下采样分辨率版本开始的金字塔块结构关系进行精化运动矢量搜索。视频稳定化还通过执行用于处理局部运动矢量的随机采样共识方法以及用于运动矢量可靠性的选择标准来改进全局运动变换估计。视频稳定通过实时一次通过或离线两通时间平滑以及错误检测和纠正，可以平滑地消除手抖动。

3. 发明申请

WO2013123100A1 METADATA ASSISTED VIDEO DECODING 审中-公开
标题翻译： METADATA协助视频解码
公开(公告)号：WO2013123100A1
公开(公告)日：2013-08-22
申请号：PCT/US2013/026004
申请日：2013-02-13
申请人： MICROSOFT CORPORATION
发明人： WU, Yongjun , SADHWANI, Shyam , THUMPUDI, Naveen
IPC分类号： H04N7/26
CPC分类号： H04N19/44 , H04N19/103 , H04N19/12 , H04N19/129 , H04N19/157 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/70
摘要： A video decoder is disclosed that uses metadata in order to make optimization decisions. In one embodiment, metadata is used to choose which of multiple available decoder engines should receive a video sequence. In another embodiment, the optimization decisions can be based on length and location metadata information associated with a video sequence. Using such metadata information, a decoder engine can skip start-code scanning to make the decoding process more efficient. Also based on the choice of decoder engine, it can decide whether emulation prevention byte removal shall happen together with start code scanning or not.
摘要翻译：公开了使用元数据以进行优化决定的视频解码器。在一个实施例中，使用元数据来选择多个可用解码器引擎应当接收视频序列中的哪一个。在另一个实施例中，优化决定可以基于与视频序列相关联的长度和位置元数据信息。使用这样的元数据信息，解码器引擎可以跳过起始码扫描，以使解码过程更有效率。同样基于解码器引擎的选择，它可以决定是否与启动代码扫描一起发生仿真预防字节删除。

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