Three-dimensional range data interpolation using B-spline surface fitting

Authors
Citation
St. Li et Dm. Zhao, Three-dimensional range data interpolation using B-spline surface fitting, J ELECTR IM, 10(1), 2001, pp. 268-273
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Optics & Acoustics
Journal title
JOURNAL OF ELECTRONIC IMAGING
ISSN journal
1017-9909 → ACNP
Volume
10
Issue
1
Year of publication
2001
Pages
268 - 273
Database
ISI
SICI code
1017-9909(200101)10:1<268:TRDIUB>2.0.ZU;2-D
Abstract
Many optical range sensors use an equal angle increment (EAI) sampling. Suc h an EAI model generates data for surface geometrical description that have to be converted, in many applications, into data which meet the desired eq ual distance increment orthographic projection model. In three-dimensional (3D) image processing, a 3D interpolation scheme is needed to resample the range data into spatially equal-distance sampling data. In this paper, a re sampling approach using a B-spline surface fitting approach is proposed. Th e first step is to select a new scale for all X, Y, and Z directions. The s ize of the new range image and the new coordinates of each point are then c omputed according to the actual references of (x,y,z) coordinates and the n ew scale. The new range data are interpolated using a B-spline surface fitt ing approach. The experiments show that this 3D interpolation approach prov ides a geometrically accurate solution for many industrial applications whi ch deploy the EAI sampling sensors. (C) 2001 SPIE and IS&T.