Efficient single-pixel imaging method and system

Abstract

The invention provides an efficient single-pixel imaging method and system. The efficient single-pixel imaging method comprises the steps that a series of modulation patterns which are different in order and meet Zernike polynomial distribution are generated and loaded to a spatial light modulator; the spatial light modulator performs intensity modulation on the laser emitted by the light source by using the series of modulation patterns which have different orders and meet Zernike polynomial distribution, projects the modulated laser onto a target object, and collects a return light intensity signal reflected back from the target object; and reconstructing a target object image based on the return light intensity signal and the series of modulation patterns which have different orders and meet Zernike polynomial distribution. Based on the high-efficiency single-pixel imaging method provided by the invention, the imaging efficiency and the imaging quality can be improved under the condition of low sampling ratio.

Description

technical field [0001] The invention relates to the technical field of optical detection and imaging, in particular to a high-efficiency single-pixel imaging method and system using a Zernike moment light field. Background technique [0002] Single-pixel imaging refers to a technology that uses a single photosensitive device to image a target object. Unlike the traditional array detector imaging technology that only responds to the visible light band, a single-pixel detector can achieve imaging in the ultraviolet, infrared and even terahertz bands. The pixel detector records the return light of the object in the way of barrel detection, with high sensitivity, and can be used in the field of low-light detection and imaging such as long-distance target detection. At present, single-pixel detection technology usually uses spatial light modulation to perform single-pixel imaging, that is, the intensity of the illumination light field is spatially modulated to generate structured...

AI Technical Summary

Problems solved by technology

The earliest single-pixel imaging technology usually uses a random light field as the modulated light field. Since the two-dimensional spatial intensity distribution of the illumination light field is random, the information collected between different light fields is redundant, so the number of measurements required is much larger. Excessive number of pixels to reconstruct the pattern, longer data acquisition time, and lower imaging efficiency

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