Video noise reduction method and video noise reduction system based on portrait mode

Abstract

A video noise reduction method and a video noise reduction system based on a portrait mode are provided. The method includes configuring a processor to perform: inputting a current image into a portrait mode model to generate a current portrait probability image; executing a post-processing process, including performing a binarization process on the current portrait probability image to generate a mask image and executing a contour extraction process to extract a foreground region, a background region and a contour region; performing a filtering process, including: executing a motion detection process to locate a motion region and a stationary region; performing a time-domain filtering operation on the stationary region; for the motion region, obtaining a similar part of the previous image and a degree of difference of the similar part, so as to determine whether to compensate the motion region or to perform a spatial domain filtering operation.