Adaptive frame rate up-conversion method based on motion classification

Abstract

The invention discloses a self-adapting motion compensation frame rate up-conversion method based on a motion classification mainly solving the problems of inaccurate motion compensation and over big motion complexity in the prior method and comprising: firstly dividing a video into a global motion sequence and a local motion sequence by a global motion estimating method based on an integral projection; obtaining a still background and an occlusion region by a motion detection to the local motion sequence through a high order statistical model; constructing a gray co-occurrence matrix with a pixel distance, quantizing a vein complexity by using two indexes of an angle second moment and an entropy; adding a Cross-Sectional Absolute Deviation (CSAD) criterion to a provided mixing motion estimation method, performing the motion estimation to a motion region of the global motion sequence and the local motion sequence according the vein complexity, avoiding the generation of a superposition and a pore zone during a motion compensation interpolation; finally performing the compensation interpolation to the motion region, and performing a time-domain average to the still region. The occlusion region is a copy of a current frame or former frame.

Description

technical field [0001] The invention belongs to the field of image / video processing, and relates to digital TV format processing, in particular to an adaptive frame rate up-conversion method, which can be used for video conferencing, compatibility of video terminal equipment, and video enhancement of low-bit encoding and decoding terminals. Background technique [0002] With the rapid development of image coding and video transmission, digital high-definition television HDTV enables people to enjoy extremely high-quality audio-visual enjoyment in their living rooms. However, the transition from analog to digital TV is a gradual process. High-definition TV HDTV, standard-definition TV SDTV, and traditional analog TV will exist at the same time for a long period of time. Various film and television equipment have different frame rate requirements, so frame rate conversion is required for connections between various devices. [0003] Frame rate up-conversion refers to converti...

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Problems solved by technology

[0010] The purpose of the present invention is to provide an adaptive frame rate up-conversion method based on motion classification, to overcome the problem of inaccurate compensation and interpolation caused by holes and overlaps in the above-mentioned two-way motion estimation in which the background replaces the object, and the calculation The problem of excessive volume, improve the quality of interpolated frames

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