公开(公告)号：EP2649556A4

公开(公告)日：2017-05-17

申请号：EP10860528

申请日：2010-12-09

Applicant: NOKIA TECHNOLOGIES OY

Inventor： XIE XIAOHUI ,  ZENG XIAO ,  LIU YINGFEI ,  ZOU YANMING ,  WANG KONGQIAO ,  ZHAO ZHICHENG ,  CAI ANNI

IPC: G06K9/00

CPC classification number: G06K9/6202 ,  G06K9/00751

Abstract: An example apparatus is caused to receive a video sequence of a plurality of frames, and perform a number of operations as each of at least some of the frames is received but before all of the frames are received. The apparatus is caused to calculate a score for the frame, and compare the score for the frame to a predefined threshold. The apparatus is caused to cause output of the frame as a key frame in an instance in which the frame is received within a specified period of time and the score for the frame is above the predefined threshold. Otherwise, in an instance in which none of the scores for frames received within the specified period of time is above the predefined threshold, the apparatus is caused to cause output of one of the frames received within the specified period of time as a key frame.

Abstract translation: 使得示例性装置接收多个帧的视频序列，并且当接收到所有帧中的每一个时，但是在接收到所有帧之前执行多个操作。 使装置计算该帧的分数，并将该分数与预定义的阈值进行比较。 在指定的时间段内接收到帧的情况下，使该设备使帧的输出作为关键帧，并且该帧的分数高于预定义的阈值。 否则，在指定时间段内接收到的帧的分数都不高于预定义阈值的情况下，导致装置使得在指定时间段内接收到的一个帧的输出作为关键帧。