Parallel single-pixel imaging method

Abstract

The invention relates to a method for realizing the parallel single-pixel imaging, which expands a basic method of the single-pixel imaging into a pixel array (image) sensor and greatly widens the application range of the single-pixel imaging method. The method comprises the following steps of firstly, calculating and positioning an observation area of each pixel on a pixel array by projecting and shooting a pattern mode of a Fourier slice; secondly, projecting a required pattern mode to the scene by using a projector, and shooting by using a camera to obtain a corresponding image; secondly, executing a parallel single-pixel imaging image reconstruction algorithm on all pixels on the camera image to obtain a corresponding image with projector resolution under each camera pixel. Due to the fact that the sparsity during the light transmission process is fully explored, the parallel single-pixel imaging method can greatly improve the imaging efficiency of a traditional single-pixel system. Meanwhile, the corresponding relation between the camera pixels and the projector pixels is established through the reconstruction result, and a good effect is achieved for further promoting the development of the optical imaging theory, the computer graphics and the computer vision.

Description

technical field [0001] The invention relates to a method for realizing parallel single-pixel imaging, which extends the basic method of single-pixel imaging to pixel arrays such as CCD (Charge-coupled Device, charge-coupled device) and CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor) In (image) sensors, the application range of single-pixel imaging methods has been greatly expanded. The present invention is in the field of computational imaging. Background technique [0002] Single-pixel imaging (Single-pixel Imaging) is a brand-new imaging method. Compared with the uniform lighting source in the traditional imaging, it uses a controllable structured lighting source (such as a projector) to project a series of basic patterns to the scene. pattern, while using photodetectors without spatial resolution to image the scene overlaid with the pattern of the base pattern. This imaging method does not directly measure the scene information, b...

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Problems solved by technology

[0003] The existing single-pixel imaging technology uses a single photodetector element to receive the reflected light from the entire scene to illuminate the projector. This imaging mechanism and corresponding reconstruction methods are difficult to be directly applied to pixel arrays such as CCD or CMOS in traditional imaging. The mode of collecting scene image information in parallel limits its wide application in traditional imaging systems

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