Single-pixel laser computational imaging device and method

Abstract

The invention discloses a single-pixel laser computing imaging device, which includes an active lighting module for illuminating a target scene to be imaged; a first imaging mirror group for converging and imaging the lighting information reflected by the target scene; a DMD modulation module for generating Multi-encoded Gaussian random coded template matrix, and according to the Gaussian random coded template matrix, randomly coded and modulated the target scene information to obtain the coded target scene signal; the second imaging lens group, for the coded target scene signal Perform distortion correction and secondary imaging; data acquisition module, collect and convert the encoded target scene signal to obtain the total intensity value of the target scene information in two reflection directions; high-resolution computing imaging module: calculate the target scene information The total intensity value is subjected to compressed sensing reconstruction operation to obtain a high-resolution image; a single-pixel laser computational imaging method is also disclosed.

Description

Technical field [0001] The present invention belongs to the technical field of laser imaging, in particular to a single-pixel image forming apparatus and method for calculating a laser. Background technique [0002] Of contour detection laser imaging as an active manner, by actively illuminate the target object, receiving terminal for receiving an optical signal reflected by the target and by the post-signal processing distance. Compared to microwave detection, infrared imaging, laser imaging with a strong anti-interference ability, high detection accuracy, high sensitivity and low weight by volume, etc; without mechanical scanning laser imaging apparatus having the imaging speed, a high frame rate, resolution advantages, and can overcome scanning bulky, heavy quality, poor reliability shortcomings, therefore, in the forestry monitoring, digital cities, terrain mapping, flood mapping, pipeline design and maintenance of navigation and landing fields has broad application prospects...

AI Technical Summary

Problems solved by technology

[0003] The advantages of laser imaging also benefit from single-photon detectors with large gain and high sensitivity. However, due to the limitation of manufacturing process, the resolution of existing single-photon devices is low, resulting in the spatial resolution of laser imaging being lower than that of traditional optical imaging. Unable to meet the requirements for imaging resolution in real-world applications

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