论文标题
对框架编码的贡献
Contributions to interframe coding
论文作者
论文摘要
需要进行高级运动模型(4或6个参数),以良好表示由一系列图像中包含的不同对象实验的运动。如果将图像分成很小的块,则只能使用2个参数来实现对复杂运动的准确描述。该替代方案意味着每个图像的大量向量。我们提出了一种新方法来减少向量的数量,使用不同的块大小作为图像的局部特征的函数,而不会增加最小块接受的错误。为INTER/INTRAGE INTRAGE编码器提出了第二种算法。
Advanced motion models (4 or 6 parameters) are needed for a good representation of the motion experimented by the different objects contained in a sequence of images. If the image is split in very small blocks, then an accurate description of complex movements can be achieved with only 2 parameters. This alternative implies a large set of vectors per image. We propose a new approach to reduce the number of vectors, using different block sizes as a function of the local characteristics of the image, without increasing the error accepted with the smallest blocks. A second algorithm is proposed for an inter/intraframe coder.