Immobile double-telecentric zoom scanning imaging system and main structure parameter determination method

Abstract

The invention provides an immobile double-telecentric zoom scanning imaging system and a main structure parameter determination method. The immobile double-telecentric zoom scanning imaging system is composed of a laser modulation light source system, an immobile double-telecentric zoom scanning illumination system and a single-photon imaging system. The structural parameter determination method comprises the following steps: S1, analyzing Gaussian solution characteristics of the system by adopting a Gaussian bracket method, and extracting zoom evaluation parameters capable of evaluating the zoom capability of the immobile double-telecentric zoom scanning imaging system; s2, according to a vector aberration theory, a Seidel aberration coefficient and a Snell law, proposing significant parameters restricting the scanning performance of the immobile double-telecentric zoom scanning imaging system and an associated mathematical model thereof, and further extracting scanning evaluation parameters for evaluating the high-precision scanning capability of the system; and S3, establishing a nonlinear global evaluation function in combination with the zooming evaluation parameters and the scanning evaluation parameters, and performing optimal solution retrieval on the nonlinear global evaluation function to obtain the immobile double-telecentric zooming scanning imaging system with good zooming capability and high-precision scanning capability.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an immobile bi-telecentric zoom scanning imaging system and a method for determining main structure parameters. Background technique [0002] Computational ghost imaging technology is one of the most effective ways to break through the signal processing limits of traditional imaging systems to obtain multi-dimensional, multi-spectral scene information, and is suitable for monitoring, remote sensing, and imaging under conditions of strong scattering media. In order to solve the degradation of the measurement substrate caused by the uncertainty of photon transmission at long distances and the computational burden of sudden increase in data volume and noise in large-scale dynamic scenarios, a new imaging system combining space-frequency multiplexing and heterogeneous multi-view channels is an effective solution. way, and this requires that the computational ghost imaging op...

AI Technical Summary

Problems solved by technology

If the traditional computational ghost imaging optical system needs to realize zooming and scanning functions, it is necessary to add zooming modules and scanning modules, that is, adding multiple groups of lenses, rotating mirrors and mechanical structures. Not only will the system structure become complicated and the reliability will be reduced. It will also be difficult to achieve due to mechanical zoom and scanning structure

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