Continuous wavelet transform object tracking method based on space-time processing block

Abstract

The invention relates to a continuous wavelet transform object tracking method based on space-time processing block, comprising the following four steps: step 1, obtaining a space-time three-dimensional processing block Bt and a space-time continuous wavelet function; step 2, adopting Morlet wavelet as a wavelet base function, and obtaining a space-time three-dimensional wavelet function for performing space-time continuous wavelet transform on the processing block Bt through function transform; step 3, obtaining the movement parameter of the moving object in the (Zf+1)-th frame image window of the processing block Bt according to the corresponding relationship of the (Zf+1)-th frame image window of the processing block Bt and the (t-1)-the frame image of the image sequence S; step 4, obtaining the movement parameter of the moving object in the t-th frame image of the image sequence S according to the corresponding relationship of the (Zf+1)-th frame image window of the processing block Bt and the (t-1)-th frame image of the image sequence S, and the corresponding relationship of the (Zf+2)-th frame image window of the processing block Bt and the t-th frame image of the image sequence S. The method is scientific and reasonable in design, simple in program, and has good practical value and broad application prospect in the technical field of machine view and pattern recognition.

Description

technical field [0001] The invention proposes a continuous wavelet transform target tracking method based on spatio-temporal processing blocks, which belongs to the field of machine vision and pattern recognition. Specifically, it relates to a method for tracking moving objects by applying continuous wavelet transform to spatio-temporal processing blocks (segmented video region streams) to obtain motion parameters of moving objects in image sequences. Background technique [0002] Moving target tracking has always been a hot issue in the fields of machine vision, image processing and pattern recognition, and it has a wide range of applications in visual navigation, safety monitoring, traffic control, military visual guidance and so on. Specifically, moving object tracking refers to detecting, extracting, identifying and tracking moving objects from videos containing moving objects, and then obtaining their motion parameters such as position, velocity, acceleration, etc., and...

AI Technical Summary

Problems solved by technology

However, the amount of computation for spatio-temporal continuous wavelet transform on an image sequence will increase sharply with the increase of the image size and the number of processing frames, which seriously limits the real-time performance of this strategy to solve moving target tracking.

Moreover, whether the setting of the initial value of the motion scale parameter used for function transformation is reasonable or not affects the accuracy of moving target tracking to a certain extent

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