| 摘要 |
An improved pre-alarm video buffer is provided to reduce negative effects of initial differential image frames in a video sequence buffer by using image information about a specific video sequence. Input image frames are received from an input video stream including full image frames and differential image frames(1300). In response to the reception of each frame, each received input image frame is stored in a video sequence FIFO(First In First Out) buffer(1302). At least one full image frame about the video sequence stored in the video sequence FIFO buffer is stored in a full image FIFO buffer(1304). An output video sequence is generated by combining at least one of the stored full image frames from the full image frame FIFO buffer with the image frames of the video sequence FIFO buffer(1310).
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