Non-contact nondestructive omnibearing three-dimensional modeling method

Abstract

The invention discloses a non-contact nondestructive omnibearing three-dimensional modeling method. The method comprises the following steps: calibrating a binocular camera by using a calibration board, and obtaining a stereo image pair; calculating an adaptive cross for each pixel in the image; estimating an adaptive matching window for each pixel according to the adaptive cross; obtaining matching cost by using the adaptive matching window, and respectively building a data item, a refined item, a smooth item and a division item by using the matching cost; then carrying out energy minimization on an energy equation to obtain final parallax distribution; and carrying out three-dimensional reconstruction according to the final parallax distribution. By adopting the non-contact nondestructive omnibearing three-dimensional modeling method, three-dimensional reconstruction is carried out by using a stereo vision method; the damage to an object caused by a contact three-dimensional modeling method is avoided; the three-dimensional reconstruction accuracy is effectively improved by adopting the adaptive matching cost method; the non-contact nondestructive omnibearing three-dimensional modeling method has good practicability.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a non-contact and non-destructive omni-directional three-dimensional modeling method. Background technique [0002] With the development of signal processing science and computer technology, computer vision as a new field of artificial intelligence has gradually formed and has been greatly developed. Computer vision technology uses cameras instead of human eyes to obtain scene images and convert them into digital signals. Visually perceive and interpret the objective world instead of the human brain. Although it is not yet possible for computers, robots or other intelligent machines to have vision as efficient, flexible and general as humans and other creatures, vision theory and technology have developed rapidly since the 1950s. Helmets are aimed at electronic image stabilization on military vehicles, from image guidance on missiles to military target recognition, compu...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of weak texture areas, discontinuous parallax areas, and occlusion areas that are prone to noise, distortion, or outliers, and propose a non-contact and non-destructive omni-directional three-dimensional modeling method, which can be used in those areas where traditional calculations are difficult. Achieve robust performance, filter out most of the abnormal pixels, and reconstruct a 3D result that is closer to the surface of the real object

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