为了改善视频编解码器的性能,提出了一种惯性预补偿技术,可以跟踪由物体运动惯性引起的视频序列在时域上的相关性。借助这种技术,为视频编码器的运动估计单元寻找到相当精确的初始运动矢量,给运动补偿结果带来近1dB的增益。同时,结合简单的前背景分割,这种预补偿技术可以使解码端在仅使用块运动矢量的情况下得到比传统帧插值技术更平滑的重建效果,有效地提高了视频回放的帧率。H.263编解码器的实验表明:上述方法可以提高视频编解码器的实际性能。 In order to improve the performance of video codecs, an inertial precompensation technique is proposed to track the temporal correlation of video sequences caused by object motion inertia. With this technique, a fairly accurate initial motion vector is found for the motion estimation unit of the video encoder, which brings nearly 1 dB gain to the motion compensation result. At the same time, combined with simple pre-background segmentation, this pre-compensation technique can make the decoding end smoother than the conventional frame interpolation technique using only the block motion vector, effectively improving the frame rate of the video playback. H.263 codec experiments show that: the above method can improve the actual performance of video codecs.