| 摘要 |
PROBLEM TO BE SOLVED: To provide a motion estimate method, with motion precision having adaptability that includes at least a technology for a motion vector with high pixel precision and less increase in the calculation quantity. SOLUTION: One technology employs a fast search strategy in a partial pixel space, to smartly retrieve an optimum motion vector. Other technology uses a different interpolation filter in a different stage, to estimate a motion vector with high precision, so as to reduce the complexity of calculation. Still another technology employs rate distortion criterion applied according to a different motion precision, to decide both an optimum motion vector and the optimum motion precision. Furthermore, yet another technology uses a VLC table interpreted differently in a different coding unit, according to the related motion vector accuracy. |
