公开(公告)号：US20140254688A1

公开(公告)日：2014-09-11

申请号：US13790315

申请日：2013-03-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Dihong Tian ,  Jennifer Sha

IPC: H04N7/26

CPC classification number: H04N21/440281 ,  G06F3/1462 ,  G09G5/393 ,  H04N21/44008 ,  H04N21/4788

Abstract: Techniques are provided for receiving and decoding a sequence of video frames at a computing device, and analyzing a current video frame N to determine whether to skip or render the current video frame N for display by the computing device. The analyzing includes generating color histograms of the current video frame N and one or more previous video frames, determining a difference value representing a difference between the current video frame N and a previous video frame N−K, where K>0, the difference value being based upon the generated color histograms, in response to the difference value not exceeding a threshold value, rendering the current video frame N or a recently rendered video frame N−K using the current video frame, and in response to the difference value exceeding the threshold value, skipping the current video frame N from being rendered.

Abstract translation: 提供技术用于在计算设备处接收和解码视频帧序列，并且分析当前视频帧N以确定是否跳过或呈现当前视频帧N以供计算设备显示。 该分析包括生成当前视频帧N和一个或多个先前视频帧的颜色直方图，确定表示当前视频帧N和先前视频帧N-K之间的差的差值，其中K> 0，差值 基于生成的颜色直方图，响应于不超过阈值的差值，使用当前视频帧渲染当前视频帧N或最近渲染的视频帧N-K，并且响应于该差值超过阈值 阈值，跳过当前视频帧N的渲染。