VIDEO PROCESSING METHOD USING ADAPTIVE WEIGHTED PREDICTION

摘要

The present invention relates to a video processing method using adaptive weight prediction. The video processing method according to one embodiment of the present invention comprises the following steps: dividing a reference frame into a plurality of divided reference areas; dividing a current frame into a plurality of divided current areas; calculating absolute values of the differences between average brightness values of each divided reference area and each divided current area; calculating the standard deviation of the absolute values; and performing adaptive weighted prediction for the current frame if the standard deviation is greater than a given threshold. According to the present invention, when a drastic change in brightness which is caused by flash, fading in, fading out, etc. is processed, the amount of operations can be reduced, thereby improving the speed of relevant video processing.;COPYRIGHT KIPO 2014;[Reference numerals] (202) Is a weighted prediction operation for a current frame required?;(204) Generate an adaptive weighted prediction table;(206) Is an adaptive weighted prediction required?;(208) Perform a global weighted prediction operation;(210) Perform an adaptive weighted prediction operation for the current frame;(212) Motion prediction;(AA) Start;(BB,DD) No;(CC,EE) Yes