Joint optimization of block size and quantization for quadtree-based motion estimation.
basic_science · Level V
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- Record sourced from PubMed, PMID 18276305.
- Also identified by DOI 10.1109/83.679441.
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Abstract
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.