Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (7): 959-967.doi: 10.11947/j.AGCS.2018.20170733

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Refinement of the 3D Mesh Model Driven by the Image Information

ZHANG Chunsen1, ZHANG Mengmeng1, GUO Bingxuan2   

  1. 1. College of Geomatics, Xi'an University of Science and Technology, Xi'an 710054, China;
    2. State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
  • Received:2017-12-21 Revised:2018-03-22 Online:2018-07-20 Published:2018-07-25
  • Supported by:
    The Major Program of National Natural Science Foundation of China (No. 91638203)

Abstract: A method of 3D mesh refinement driven by the image information is proposed to solve the existing problem of 3D re-construction constructed by the 3D mesh model.According to the image information, one image is reprojected to other visible images induced by the object triangular facet, adopt gradient descent method, take the derivative of object vertex coordinates with the images' NCC coefficient, and adjust the vertices coordinates of object 3D mesh in order to minimize regional matching cost, to obtain the optimal 3D mesh model, and to achieve the purposes of the 3D mesh model refinement.Results indicate that this method can greatly improve the accuracy of 3D mesh to reconstructing 3D model.

Key words: image information, normalized cross correlation, gradient descent method, gradient change value, 3D mesh refinement

CLC Number: