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    • 26. 发明授权
    • Rate-distortion-complexity optimization of video encoding
    • 视频编码的速率失真复杂度优化
    • US08934538B2
    • 2015-01-13
    • US13275084
    • 2011-10-17
    • Lei YangDebargha Mukherjee
    • Lei YangDebargha Mukherjee
    • H04N19/154H04N19/152H04N19/192H04N19/40H04N19/53H04N19/15H04N21/2662H04N21/2743H04N19/115H04N19/147H04N19/127H04N19/194
    • H04N19/154H04N19/10H04N19/115H04N19/127H04N19/147H04N19/15H04N19/152H04N19/192H04N19/194H04N19/40H04N21/2662H04N21/2743
    • A system and method provide a video coding system for optimizing encoding bitrate, distortion and complexity for a video hosting service. The system comprises an encoding module configured to encode multiple videos with a bitrate control strategy, a pair of complexity allocation control parameters and one or more target output video formats specifications, which include target resolution, target bitrate and target quality information. The encoding module obtains encoding bitrate, distortion and complexity performance samples from the encoding. From the encoding bitrate, distortion and complexity performance samples, the encoding module is configured to select optimal encoding bitrate, distortion and complexity performance samples. The encoding computation profile mapping module is configured to obtain multiple computation levels from the optimal encoding bitrate, distortion and complexity performance samples. For each computational level, a pair of optimized complexity allocation control parameters and number of encoding passes are selected.
    • 系统和方法提供用于优化视频托管服务的编码比特率,失真和复杂度的视频编码系统。 该系统包括:编码模块,被配置为利用比特率控制策略,一对复杂度分配控制参数和一个或多个目标输出视频格式规范来编码多个视频,其包括目标分辨率,目标比特率和目标质量信息。 编码模块从编码中获得编码比特率,失真和复杂度性能样本。 从编码比特率,失真和复杂度性能样本中,编码模块被配置为选择最佳编码比特率,失真和复杂度性能样本。 编码计算简档映射模块被配置为从最佳编码比特率,失真和复杂度性能样本获得多个计算级别。 对于每个计算级别,选择一对优化的复杂度分配控制参数和编码遍数。
    • 28. 发明授权
    • Methods and apparatus for imaging and displaying a navigable path
    • 用于成像和显示导航路径的方法和装置
    • US08797402B2
    • 2014-08-05
    • US10300103
    • 2002-11-19
    • Amir SaidDebargha MukherjeeUllas Gargi
    • Amir SaidDebargha MukherjeeUllas Gargi
    • H04N7/00H04N7/18
    • G01C21/3647G01C21/3632G01C21/367G01C21/3682G05D1/0246G05D1/0255
    • Various methods for imaging and navigating a selected path are described. A method of navigating a path includes the step of identifying a selected path. At least one image stream associated with navigating the selected path is identified. The displayed image stream includes visual information corresponding to traveling the selected path. In one embodiment, display of the image stream is varied in accordance with an actual location and a speed of a traveler along the selected path. Various single pass and multi-pass systems are described for capturing the visual information associated with a path. One method of acquiring visual information includes generating first and second image streams comprising visual information representing traversal of the path. Audio cues are recorded at the same plurality of locations on each pass. The audio cues permit synchronization of the image streams to locations along the path.
    • 描述用于成像和导航所选路径的各种方法。 导航路径的方法包括识别所选路径的步骤。 识别与导航所选路径相关联的至少一个图像流。 所显示的图像流包括与行进所选路径相对应的视觉信息。 在一个实施例中,图像流的显示根据沿着所选路径的旅行者的实际位置和速度而变化。 描述了用于捕获与路径相关联的视觉信息的各种单遍和多遍系统。 获取视觉信息的一种方法包括生成包括表示路径遍历的视觉信息的第一和第二图像流。 音频提示记录在每次通过的相同多个位置。 音频提示允许图像流同步到沿着路径的位置。