公开(公告)号：US08270476B2

公开(公告)日：2012-09-18

申请号：US12347927

申请日：2008-12-31

申请人： Michael L. Schmit ,  Raja Koduri ,  Carrell Ray Killebrew

发明人： Michael L. Schmit ,  Raja Koduri ,  Carrell Ray Killebrew

IPC分类号： H04N7/50

CPC分类号： H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/61 ,  H04N19/85

摘要： Embodiments include a codec for use in a videoconferencing or similar system includes a video encoder pipeline that has a pre-processor component that is optimized to detect faces and compress the facial video data in an optimum manner. The codec has a pre-processing step that analyzes each frame on a per macroblock basis to determine the mathematical activity level per block. The activity level calculation is used as a parameter to the bitrate control module of the encoder to control the quantization, and thus the fine grained quality of the output data. An object detection module (e.g., a face detector) is placed in the pre-processing step. The object detection data is then combined with the activity level and object detection certainty value through a combinatorial algorithm comprising a weighted average or normalized multiplication process.

摘要翻译： 实施例包括用于视频会议或类似系统的编解码器，包括视频编码器流水线，该视频编码器流水线具有被优化以便以最佳方式检测面部并压缩面部视频数据的预处理器组件。 编解码器具有预处理步骤，其基于每个宏块分析每个帧以确定每个块的数学活动水平。 活动级别计算用作编码器的比特率控制模块的参数，以控制量化，从而使输出数据的细粒度质量。 物体检测模块（例如，面部检测器）被放置在预处理步骤中。 然后通过包括加权平均或归一化乘法过程的组合算法将对象检测数据与活动级别和对象检测确定性值组合。

公开(公告)号：US20100166055A1

公开(公告)日：2010-07-01

申请号：US12347927

申请日：2008-12-31

申请人： Michael L. Schmit ,  Raja Koduri ,  Carrell Ray Killebrew

发明人： Michael L. Schmit ,  Raja Koduri ,  Carrell Ray Killebrew

IPC分类号： H04N7/12 ,  G06K9/00

CPC分类号： H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/61 ,  H04N19/85

摘要： Embodiments include a codec for use in a videoconferencing or similar system includes a video encoder pipeline that has a pre-processor component that is optimized to detect faces and compress the facial video data in an optimum manner. The codec has a pre-processing step that analyzes each frame on a per macroblock basis to determine the mathematical activity level per block. The activity level calculation is used as a parameter to the bitrate control module of the encoder to control the quantization, and thus the fine grained quality of the output data. An object detection module (e.g., a face detector) is placed in the pre-processing step. The object detection data is then combined with the activity level and object detection certainty value through a combinatorial algorithm comprising a weighted average or normalized multiplication process.

摘要翻译： 实施例包括用于视频会议或类似系统的编解码器，其包括视频编码器流水线，该视频编码器流水线具有被优化以便以最佳方式检测面部并压缩面部视频数据的预处理器组件。 编解码器具有预处理步骤，其基于每个宏块分析每个帧以确定每个块的数学活动水平。 活动级别计算用作编码器的比特率控制模块的参数，以控制量化，从而使输出数据的细粒度质量。 在预处理步骤中放置物体检测模块（例如，面部检测器）。 然后通过包括加权平均或归一化乘法过程的组合算法将对象检测数据与活动级别和对象检测确定性值组合。

公开(公告)号：US20120050135A1

公开(公告)日：2012-03-01

申请号：US12870157

申请日：2010-08-27

申请人： David I.J. Glen ,  Carrell Ray Killebrew

发明人： David I.J. Glen ,  Carrell Ray Killebrew

IPC分类号： G09G5/00

CPC分类号： G06F3/1446 ,  G09G2300/026 ,  G09G2340/14 ,  G09G2356/00 ,  G09G2370/16

摘要： An apparatus includes a display location sensor based mapping circuit. The display location sensor based mapping circuit maps multiple displays to collectively display a single large surface in response to sensed location information from at least one of the displays.

摘要翻译： 一种装置包括基于显示位置传感器的映射电路。 基于显示位置传感器的映射电路映射多个显示器以响应于来自至少一个显示器的感测位置信息来共同显示单个大表面。