Three-dimensional object surface matching

Mehmet Celenk

doi:10.1117/12.211999

16 June 1995 Three-dimensional object surface matching

Mehmet Celenk

Proceedings Volume 2488, Visual Information Processing IV; (1995) https://doi.org/10.1117/12.211999
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

In this paper, we describe a computationally efficient 3D object surface matching algorithm. In the proposed method, object and model surfaces are scaled to be in a unit cube in the 3D space. They are then sliced along the magnitude axis and the resultant object and model surface cross sections are represented in binary image format. The cross sections' centroids of an unknown object and the models of different shapes are computed in their respective binary images. The resultant cross-sections are translated to the origin of the spatial plane using the centroids. Major and minor axes of the plane cross sections are aligned with the coordinate axes of the spatial plane. Matching of the aligned cross sections is done in the direction of the gradient of the cross section distance between the object boundary points and the corresponding points in the model cross section boundary. The shape deformation distances measured in different cross sections are averaged and the minimum average shape deformation distance is used to identify the model best matching to the object of unknown classification.

Citation Download Citation

Mehmet Celenk "Three-dimensional object surface matching", Proc. SPIE 2488, Visual Information Processing IV, (16 June 1995); https://doi.org/10.1117/12.211999

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