Three-dimensional computational imaging method and device based on single-pixel sensor

Abstract

The invention discloses a three-dimensional computational imaging method and device based on a single-pixel sensor. The method comprises the following steps: generating a novel light coding way through the preset light coding formed by combining the strip coding and the two-dimensional imaging coding, and loading the light coding into a space-light modulator (SLM); coupling the two-dimensional space of the pre-modulated scene and the depth information as a one-dimensional measurement value by utilizing a single-pixel detector and a loaded SLM; and reconstructing two-dimensional information andthe depth information from the one-dimensional measurement value through a decoupling algorithm, thereby obtaining a three-dimensional imaging result. Through the method disclosed by the invention, the problem that the traditional single-pixel imagining cannot effectively collect the depth is solved through the designed novel coding mechanism and reconstruction method, the depth of the scene or the thickness of each point of a to-be-measured three-dimensional object can be effectively recovered, and the method is still applicable under the wide spectrum range.

Description

technical field [0001] The invention relates to the technical field of computational photography, in particular to a method and device for three-dimensional computational imaging based on a single-pixel sensor. Background technique [0002] Traditional cameras use a two-dimensional sensor unit array as a photosensitive element, and its sensor can only perceive the superimposed information of light intensity, and the depth information of the scene is lost in the imaging process. Therefore, the traditional photography technology obtains the projection of the three-dimensional world on the two-dimensional plane, and the obtained single image cannot accurately restore the depth and structure information of the three-dimensional scene, and cannot bring a three-dimensional effect to the human eye. [0003] The traditional three-dimensional measurement technology includes: the binocular intersection measurement method that uses multiple cameras to shoot from multiple angles and com...

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Problems solved by technology

[0010] For this reason, an object of the present invention is to propose a three-dimensional computational imaging method based on a single-pixel sensor, which can still be applicable in the case of a wide spectral range, and can effectively restore the depth of the scene or each point of the three-dimensional object to be measured. thickness, and through the new coding mechanism designed to solve the problem that traditional single-pixel imaging cannot effectively collect depth

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