Title: | Shape invariantsand principal directions from 3D points and normals |
Authors: | Kamberov, George Kamberova, Gerda |
Citation: | Journal of WSCG. 2002, vol. 10, no. 1-2, p. 537-544. |
Issue Date: | 2002 |
Publisher: | UNION Agency |
Document type: | článek article |
URI: | http://wscg.zcu.cz/wscg2002/Papers_2002/F73.ps.gz http://hdl.handle.net/11025/6023 |
ISSN: | 1213-6972 (print) 1213-6980 (CD-ROM) 1213-6964 (online) |
Keywords: | tvarové invarianty;průměrná kurvatura;Gaussova kurvatura |
Keywords in different language: | shape invariants;mean curvature;Gaussian curvature |
Abstract: | A new technique for computing the differential invariants of a surface from 3D sample points and normals is presented. It is based on a new conformal geometric approach to computing shape invariants directly from the Gauss map. In the current implementation we compute the mean curvature, the Gauss curvature, and the principal curvature axes at 3D points reconstructed by area-based stereo. The differential invariants are computed directly from the points and the normals without prior recovery of a 3D surface model and an approximate surface parameterization. The technique is stable computationally. |
Rights: | © UNION Agency |
Appears in Collections: | Volume 10, number 1-2 (2002) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
F73.ps | Plný text | 1,87 MB | Postscript | View/Open |
F73.pdf | Plný text | 643,83 kB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/6023
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