System and method for advancing frame frequency based on motion compensation

Abstract

The invention provides a frame frequency promotion method and a system based on motion estimation and compensation. With the system, a forward motion vector and a backward motion vector of two adjacent video frames are respectively estimated through a bi-directional motion estimation unit; the size of a macro block during the compensation is selected and whether a video switch appears or not is judged according the relation of the motion vector before the vector smoothing and after the vector smoothing; the direction of the bi-directional motion vector is unified through a frame motion vector integrated unit to be inserted and whether a newly divided frame macro block to be checked is a general macro block or an invisible / visible motion macro block is judged; the suitable motion vector to the frame macro block to be checked is distributed through a frame motion vector post-processing unit to be inserted, and finally an inwards inserted frame is generated according to the compensation algorithm. With the invention, a video lens switch can be processed in time; a relatively perfect frame to be inserted is generated when the invisible / visible motion and picture frame background is moved inwards / outwards, and with the invention, the size of the macro block is selected automatically and the precision and the noise of the compensation are balanced.

Description

technical field [0001] The invention relates to a digital audio and video signal processing system and method, in particular to a system and method for increasing the frame rate of a liquid crystal screen based on motion estimation and compensation. Background technique [0002] As a flat panel display tool, LCD has been widely developed and utilized. At present, its main defect is that it will produce motion blur such as tailing and afterimage when displaying dynamic images. There are three main reasons for the distortion and blurring of LCD motion images: first, the response time of liquid crystal display is relatively slow; second, the holding time of liquid crystal display is relatively long; Integrate, resulting in blurring. [0003] The industry mainly starts from the first two reasons to improve the dynamic image quality of LCD monitors: one is to improve the response time of the LCD; the other is to reduce the holding time of the LCD screen. Experiments have prove...

AI Technical Summary

Problems solved by technology

But it brings a very large computational complexity to the hardware estimator, and in motion compensation, the cost of the macroblock mode decision also increases the hardware implementation complexity

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