Single pixel laser calculation imaging device and method

Abstract

The invention discloses a single pixel laser calculation imaging device, comprising: an active illumination module used for performing illumination on a target scene to be imaged; a first imaging lensgroup used for performing converging imaging on illumination information reflected by the target scene; a DMD (Digital Mirror Device) modulation module used for generating a Gaussian random coding template matrix which is repeatedly coded, and performing random coding modulation on target scene information according to the Gaussian random coding template matrix to obtain a coded target scene signal; a second imaging lens group used for performing distortion correction and second imaging on the coded target scene signal; a data acquisition module used for performing acquisition and conversionon the coded target scene signal to obtain a total intensity value of the target scene information in two reflection directions; and a high-resolution calculation imaging module used for performing compressed sensing reconstruction operation on the total intensity value to obtain a high-resolution image. A single pixel laser calculation imaging method is also disclosed.

Description

technical field [0001] The invention belongs to the technical field of laser imaging, and in particular relates to a single-pixel laser computing imaging device and method. Background technique [0002] Laser imaging is an active detection method. By actively illuminating the target, the receiving end receives the light signal reflected by the target and obtains the target's outline, distance and other information through post-processing signal processing. Compared with microwave detection, infrared imaging and other technologies, laser imaging has the advantages of strong anti-interference ability, high detection accuracy, high sensitivity and small volume and weight; laser imaging without mechanical scanning device has fast imaging speed, high frame rate, resolution It has high advantages, and can overcome the shortcomings of scanning type, such as large volume, heavy quality, and poor reliability. Therefore, it has broad application prospects in forestry monitoring, digit...

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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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