Super-high-resolution three dimensional reconstruction method based on global variation technology

An ultra-high-resolution, three-dimensional reconstruction technology, applied in the field of ultra-high-resolution three-dimensional reconstruction, can solve the problems of improving the accuracy of the three-dimensional scanning of the constraining surface structured light, difficult to find the projector, and the effect is not very ideal, etc., to achieve the improvement of three-dimensional Reconstruction accuracy, clear details, and the effect of preventing errors or errors

CN105046743AInactive Publication Date: 2015-11-11ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-11-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a super-high-resolution three dimensional reconstruction method based on a global variation technology. The method comprises the following steps: low-resolution three dimensional geometrical model and a high-resolution surface normal graph of a scene to be constructed is obtained; a global optimization energy function is constructed and obtained according to the difference between the low-resolution geometrical model and the high-resolution normal graph; the minimum value of the global optimization energy function is solved, a depth value of each pixel point is obtained, and three dimensional reconstruction is carried out according to the depth values of all the pixel points. The super-high-resolution three dimensional reconstruction method based on non-local total variation regular constraint condition lowers dependence of a final reconstruction result on an original result effectively and raises the three dimensional reconstruction precision greatly.
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Description

technical field

[0001] The invention relates to the field of computer vision three-dimensional reconstruction, in particular to an ultra-high resolution three-dimensional reconstruction method. Background technique

[0002] Three-dimensional scanning technology is a measurement method that obtains the three-dimensional shape and position data of the measured object through certain detection means. The current three-dimensional scanning technology can be roughly divided into two categories: contact and non-contact. The main products of contact 3D scanning are mechanical three-coordinate measuring machines, which have high measurement accuracy, but the measurement speed is slow, and only one point can be measured at a time, so it is difficult to achieve online detection, and the measurement object cannot be soft or easy to scratch. injured object.

[0003] Optical scanning measurement is the use of optical principles, visual scanning technology and image processing methods t...

Examples

Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with specific embodiments.

[0046] A super-high resolution three-dimensional reconstruction method based on global variation technology, comprising the following steps:

[0047] (1) Obtain the low-resolution 3D geometric model and the high-resolution surface normal map of the scene to be reconstructed;

[0048] In this embodiment, the low-resolution three-dimensional geometric model of the scene to be reconstructed is acquired through structured light scanning technology, and the resolution of the low-resolution three-dimensional geometric model in this embodiment is 1024*768. details as follows:

[0049] Using the encoding method of phase shift code combined with Gray code, the coded stripes compiled by the projection equipment are projected onto the surface of the object in sequence, and the camera shoots them sequentially, and the three-dimensional geometric information of the object is obtained...