3-D data acquisition and scene segmentation system

• Type: Article in International Conference Proceedings Book
• Date: 1996

Authors

Jorge Alves Silva (Author) FEUP; Aurélio Campilho (Author) FEUP; Marques Dos Santos, JC (Author) Other

Conference proceedings International

Title: Proceedings - International Conference on Pattern Recognition

Pages: 563-567

13th International Conference on Pattern Recognition, ICPR 1996

Vienna, 25 August 1996 through 29 August 1996

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-009-AM7

DOI: 10.1109/icpr.1996.547010

Abstract (EN): A 3-D data acquisition and scene segmentation system is described. For 3-D data acquisition a structured light technique based on the ratio of two intensity images is used. This technique avoids the correspondence problem, that appears in other structured light techniques, and allows the acquisition of dense range images. The calibration steps of the system are described. Measurement results with different scenes are presented and system accuracy is evaluated. Taking into account that this system allows the acquisition of a dense range image and an intensity image, registered with it, a new approach to the segmentation of 3-D scenes using both range and intensity information is proposed. The two images are segmented separately and iteratively. At each iteration, the segmentation results are combined. The segmentation proceeds until all segments are planar or no more splits are possible. A two-step merging procedure follows: first, planar surfaces that may have been split are "reconstructed", by merging adjacent planar regions that satisfy some constraints; then, regions belonging to curved surfaces are identified and merged, using a curvature analysis along line segments delimited by edge points, combined from both images. Finally, the resulting surfaces are described, using adequate functions. © 1996 IEEE.

Language: English

Type (Professor's evaluation): Scientific