公开(公告)号：US20150125130A1

公开(公告)日：2015-05-07

申请号：US14313442

申请日：2014-06-24

Applicant: Alpha Networks Inc.

Inventor： Chung-Wang LEE ,  Yi LIU ,  Jin-Fuu LIN

IPC: H04N21/2743 ,  H04N9/87 ,  H04N21/438 ,  G11B27/10

CPC classification number: G11B27/10 ,  G11B27/005 ,  G11B27/102 ,  G11B27/28 ,  H04N5/76 ,  H04N9/8042 ,  H04N21/23418 ,  H04N21/2747 ,  H04N21/44008

Abstract: The present invention is to provide a method applicable to a player of a network video recorder for accelerating history playback and event locking, wherein the player decompresses a compressed file of recorded images when performing history playback of the recorded images, flags the resulting frames with “changed” or “unchanged”, depending on whether variation in image data traffic between the successive frames reaches a certain degree, and then sequentially plays the images of the successive frames on a monitor at different playing speeds which are set in the player and correspond to the successive “changed” and “unchanged” frames respectively. Thus, not only is the time required for history playback significantly shortened, but also a monitoring person is enabled to rapidly see, from among large amount of played back image data, the small number of images that demand attention and to greatly reduce the time, energy and effort required while monitoring.

Abstract translation: 本发明提供一种适用于网络录像机的播放器的方法，用于加速历史回放和事件锁定，其中当执行记录图像的历史回放时，玩家解压缩记录图像的压缩文件， 改变“或”不变“，这取决于连续帧之间的图像数据流量的变化是否达到一定程度，然后以不同的播放速度在监视器上以播放器中设置的对应于 连续“改变”和“不变”框架。 因此，不仅历史回放所需的时间显着缩短，而且监视人员能够从大量的回放图像数据中快速看到需要注意的少量图像并大大减少时间， 监测所需的精力和精力。