A Motion Compensated Frame Rate Upconversion Method Based on Spatial Prediction

Abstract

The invention discloses a motion compensation frame rate up-conversion method based on spatial prediction, and relates to the technical field of video processing. The method comprises the following steps: performing block segmentation on a frame to be interpolated according to a template, and dividing the frame to be interpolated into an A class block and a B class block; performing full search motion estimation on the A class block and obtaining a motion vector, and using a continuous elimination method to reduce the computational complexity; calculating a motion vector of the B class block in combination with motion vector information of the A class block and according to the spatial correlation and a minimum error matching principle; and combining the motion vectors of the A class block and the B class block into a motion vector field of the frame to be interpolated, and interpolating by adopting an overlap block motion compensation technology according to information of reference frames ft and ft+1, and obtaining an interpolated frame ft+0.5. The motion compensation frame rate up-conversion method based on the spatial prediction provided by the invention effectively utilizes the respective advantages of the full search motion estimation and spatial correlation, which not only guarantees the accuracy of motion estimation, but also reduces the computational complexity and saves the computational cost.

Description

technical field [0001] The present invention relates to the technical field of video processing, and in particular to a motion compensation frame rate up-conversion method based on spatial prediction. Background technique [0002] With the development of multimedia technology and the update of hardware devices, and in order to obtain a better visual experience, people put forward higher requirements for the resolution and frame rate of videos. However, due to bandwidth limitations, before video transmission, a frame-skipping strategy will be adopted to achieve fast transmission. Therefore, at the receiving end, it is necessary to use existing frame information to restore discarded frames and restore the quality of the original video as much as possible. Under this requirement, Frame Rate Up-Conversion (FRUC) has attracted the attention of researchers in the field of video processing. This is because, as a post-processing technique, FRUC can upconvert the video from a lower...

AI Technical Summary

Problems solved by technology

[0007] An embodiment of the present invention provides a motion compensation frame rate up-conversion method based on spatial prediction to solve the problem in the prior art that calculation accuracy and calculation complexity cannot be considered

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