A Masquerading Detection Method Based on Composite Orthogonal Phase-Shifting Fringe

Abstract

The invention discloses a camouflage detection method based on composite orthogonal phase shift fringes, which includes: constructing a camouflage removal system composed of a projection system, a camera and a measured object; projecting mutually orthogonal sinusoidal gratings to the monitoring field of view The scene is modulated in a group way; through the proposed gradient-based sequence transformation method, the template phase singular field sequence and the intrusion phase singular field sequence are sequentially established for the non-invaded scene and the invaded scene; the phase singular field sequence and the template Phase singular field sequence for sequence correspondence, and thus obtain intermediate detection results Z k ; Finally, according to a series of optimization methods, Z k By performing optimization and a series of calculations, the trajectory and external contour of the camouflage object that invades the field of view can be calculated. The invention realizes the multi-parameter detection of the camouflaged moving object through the grating projection method, and the technology has the remarkable advantages of good dynamic performance, high detection precision, strong robustness and the like.

Description

technical field [0001] The invention relates to the field of camouflage removal, in particular to a camouflage detection method based on composite orthogonal phase shift fringes. Background technique [0002] Camouflage technology is a concealment measure taken to conceal the truth and show the false, to deceive or confuse the other party. Generally, camouflage techniques can be classified into natural camouflage and artificial camouflage. Natural camouflage means that natural organisms use natural conditions to achieve camouflage. The most common natural camouflage is that individual organisms can integrate with the natural environment by controlling the change of their own pigments, so as to achieve the purpose of camouflage; representative organisms that realize natural camouflage include chameleons and squids. Artificial camouflage means that humans use artificial clothing or special materials to camouflage military equipment or individual combat units; artificial camo...

AI Technical Summary

Problems solved by technology

These low-level feature-based detection methods can usually only achieve de-masquerading detection for some unintentional camouflage scenes, but it is difficult to identify camouflage that has been deliberately implemented by humans.

In recent years, with the rise of intelligent technologies such as artificial intelligence, machine learning and neural networks, high-level camouflage detection technology has also been developed to varying degrees. [6,7] , however, the realization of these technologies depends on the establishment of complex calculation models or requires a large amount of data training in advance, these high-consumption operations limit their application fields

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