Photometric stereo three-dimensional reconstruction method and spectroscopic photometric stereo camera

Abstract

The present application discloses a photometric three-dimensional reconstruction method and a spectroscopic photometric stereo camera. The method includes: simultaneously projecting the infrared light generated by each of the three infrared light sources to the target object; and collecting the light reflected by the target object through a lens. , to obtain the source optical path; extract the optical signals related to the above three infrared light sources from the source optical path to obtain three optical signals; respectively convert the above three optical signals into corresponding infrared image data to obtain three groups of infrared images Data: using the above three sets of infrared image data, carry out a three-dimensional reconstruction operation on the target object, and obtain the three-dimensional reconstruction data of the target object. This application can improve the subsequent three-dimensional reconstruction accuracy, and the number of lenses in this application is only one, which can avoid the difficulty caused by synchronous adjustment of multiple lenses, and is convenient for users to operate in practice.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a photometric stereo three-dimensional reconstruction method and a spectroscopic photometric stereo camera. Background technique [0002] At present, more and more fields require 3D reconstruction of space objects to obtain 3D model information of space objects. The existing 3D reconstruction technology has been widely used in 3D printing, reverse engineering, cultural relic protection, medical plastic surgery, 3D human Face recognition, virtual wear, entertainment and many other fields have greatly facilitated people's daily work and life. [0003] In the existing photometric stereoscopic 3D reconstruction technology, people usually use the following method to perform 3D reconstruction of the target object: first turn on the first light source at a certain moment in order to collect the image of the target object corresponding to the first light source, and then turn on ...

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Problems solved by technology

[0004] However, in the above-mentioned 3D reconstruction process, since the images of the target object collected at different times are not images of the same object state, the subsequent 3D reconstruction accuracy is reduced.

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