Joint optimization of block size and quantization for quadtree-based motion estimation.
A new approach to finding the best block size for quadtree-based motion estimation is developed and compared to a conventional fixed block size algorithm. The optimal balance between the motion vector bits and the discrete cosine transform (DCT) coefficient bits is achieved by a fast tree optimization technique based on Lagrange multiplier.
Lee
J
J
Sarnoff Corporation, Princeton, NJ 08543-5300, USA. junglee@sarnoff.com