Video frame interpolation processing method

Abstract

The embodiment of the invention discloses a video frame interpolation processing method. Frame interpolation processing is carried out on a video through utilization of Lagrange interpolation method.The method comprises the steps of reading a digital video; obtaining video information such as duration, a rate and the total frame number; determining an order of the Lagrange interpolation method; establishing a vandermonde matrix; carrying out matrix operation according to the matrix, thereby obtaining a coefficient matrix of Lagrange polynomials; determining locations of interpolated intervalsin an interpolation frame according to the total frame number of the video; setting the number of frames interpolated between two adjacent frames, and interpolating new frames between the two adjacent frames; confirming serial numbers of the interpolated frames in a new video; obtaining the vandermonde matrix with the same number of terms as that of the interpolation frame according to the serialnumbers; establishing an interpolation matrix; obtaining images of the new frames according to the interpolation matrix; and establishing frame interpolation transformation for frame interpolation, until all frame interpolation is finished. The video is relatively continuous and vivid, slow-motion replay is relatively obvious and fine, and restoration of the video for scientific research and public security case solution is facilitated.

Description

technical field [0001] The embodiment of the present invention relates to the field of video processing technology and transmission, and specifically relates to a video processing method that adopts Lagrangian interpolation method to interpolate video frames to make the video more continuous, and can also provide slow motion playback. Background technique [0002] When people watch old videos or public security organs view surveillance videos, due to equipment restrictions, the video will appear stuck and discontinuous, which affects people's viewing experience and subsequent investigations by public security organs. And the video needs to be compressed when it is transmitted on the network. At this time, it will be limited by the network bandwidth. However, the existing video codec technology cannot meet people's needs for the experience of watching smooth video, so the video frame insertion technology will be greatly improved. above situation. The so-called frame interpol...

AI Technical Summary

Problems solved by technology

[0002] When people watch old videos or public security organs view surveillance videos, due to equipment restrictions, the video will appear stuck and discontinuous, which will affect people's viewing experience and follow-up investigations by public security organs.

And the video needs to be compressed when it is transmitted on the network. At this time, it will be limited by the network bandwidth. However, the existing video codec technology cannot meet people's needs for the experience of watching smooth video, so the video frame insertion technology will be greatly improved. above situation

The so-called frame interpolation is the process of inserting a series of intermediate frames between images. Today's frame interpolation methods are mainly based on correcting motion vectors, and the correction methods are all averaging methods. The frame interpolation effect is limited and accurate and precise degree difference

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