| 摘要 |
PURPOSE: A device and method for detecting a motion vector when a frame rate is converted are provided to detect a motion vector for converting a frame rate by selectively using a median filter in consideration of correlation between blocks. CONSTITUTION: A motion vector detecting device includes a motion estimator(301), a storage unit(302), a mean absolute error dispersion value calculator(303), a median filter(305), and a selector(306). The motion estimator detects a mean absolute error value corresponding to a motion vector of each block using the current frame and previous frame of an input video signal. The storage unit stores the motion vector and mean absolute error value. The mean absolute error dispersion value calculator calculates the dispersion value of the mean absolute error for a reference block of the current frame. The median filter median-filters the motion vector of the reference block. The selector selects one of the signal output from the median filter and the motion vector of the reference block based on the calculation result of the mean absolute error dispersion value calculator and outputs the selected one as the actual motion vector of the reference block. |
