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Joint optimization of block size and quantization for quadtree-based motion estimation

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1 Author(s)
Jungwoo Lee ; Sarnoff Corp., Princeton, NJ, USA

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

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Image Processing, IEEE Transactions on  (Volume:7 ,  Issue: 6 )