High-dynamic-range compressed sensing imaging system and method based on random jitter

Abstract

The invention provides a high-dynamic-range compressed sensing imaging system and method based on random jitter. The system comprises an optical unit (12) and an electrical unit (13). The optical unit (12) comprises a first imaging lens (1), a spatial light modulator (2), a collection module (3), a dodging module (4), a light source (5), a shaking component (6), a second imaging lens (7) and a light splitting module (8); the electrical unit (13) comprises a detector (9), a control module (10) and a storage and calculation module (11). According to the method, random jitter is introduced into compressed sensing imaging, and the problem of large quantization error caused by insufficient detector bits is solved; the jitter frequency is increased, and the quantization error is further reduced; therefore, the method has wide application value in the fields of dynamic imaging and single-photon imaging with limited sampling time and detector conditions.

Description

Technical field [0001] The present invention relates to the field of optics, and more particularly to a high dynamic range compressed sensible imaging system and method based on random jitter. Background technique [0002] In recent years, the compressed sensible imaging method shows a huge application value. Compared to the traditional imaging method, the compressed sensible imaging method uses the post-processing algorithm to reconstruct the subcardiam signal to acquire the image, which means that the sampling process does not have to follow the traditional Nyquist sampling theorem, just the signal to be tested The probe of less than the number of signals can accurately restore the original image. On the other hand, the compressed sensible imaging system no longer rely on an array detector in conventional imaging, and only a single detector is required to collect signal collection. Based on the above advantages, compressed sensible imaging systems and methods are widely used in...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the existing compressive sensing imaging system that requires too high a number of detectors, and does not have the shortcomings of using dithering methods to reduce quantization noise, and the shortcomings of traditional imaging systems that require strict dithering amplitudes, thereby providing a High Dynamic Range Compressed Sensing Imaging System and Method Based on Random Jitter

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