| 摘要 |
A motion estimation apparatus and a motion estimation method are provided to enable a frame interpolation unit to interpolate a new interpolation frame inserted into between a current frame and a previous frame on the basis of a final motion vector determined by a motion vector determination unit, thereby generating a motion vector near to an actual motion. A local search area definition unit(35) divides a current frame into plural blocks and defines plural local search areas for an area which has the possibility of an actual motion by using the motion vector of a previous frame in each block. A local candidate vector definition unit(37) defines a motion vector with the minimum SAD(Sum of Absolute Difference) for each local search area as a local candidate vector. A global candidate vector definition unit(31) defines plural global candidate vectors with the respective minimum SAD within right and left global search areas in the each block. A motion vector determination unit(39) determines, for each of the plural local candidate vectors and each of the plural global candidate vectors, a vector which has the minimum accumulation value calculated on the basis of an SAD value, an SWVD(Sum of Weight Vector Distance) value which reflects vector consistency, and a vector size value, as a final motion vector. |
