| 主权项 |
1. A method implemented by an encoder system for encoding digital video data corresponding to a sequence of original input video frames, comprising:
encoding a first original input video frame into an INTER-frame, decoding and reconstructing the INTER-frame into a reference frame, dividing a second original input video frame into sub areas, for each sub area of said second original input video frame, determining a level of motion in the sub area of said second original input video frame, creating an INTRA input frame comprising information from both the second original input video frame and the reference frame, wherein the ratio of information from said second original input video frame and said reference frame used for creating a sub area of said INTRA input frame corresponding to a sub area of said second original input video frame is based on level of motion identified in the corresponding sub area of said second original input video frame, wherein:
if the level of motion in the sub area of said second original input video frame is above a first threshold, information exclusively from the second original input video frame is used for creating the sub area of the INTRA input frame,if the level of motion is below a second threshold, information exclusively from the reference frame is used for creating the sub area of the INTRA input frame, andif the level of motion is below the first threshold and above the second threshold, information from both the second original input video frame and the reference frame is used for creating the sub area, andwherein the second threshold is greater than the first threshold, and encoding the INTRA input frame into an INTRA-frame. |
