NDLI: Representing surface curvature discontinuities on curved surfaces

Content Provider	IEEE Xplore Digital Library
Author	Tanaka, H.T. Lee, D.T.L.
Copyright Year	1990
Description	Author affiliation: ATR Commun. Syst. Res. Lab., Kyoto, Japan (Tanaka, H.T.; Lee, D.T.L.)
Abstract	A representation scheme is presented for shapes of three-dimensional curved objects whose surface curvatures are not continuous at all points, i.e., surfaces with C/sup 1/ continuity only. A class of surface curves and points called surface structure descriptors for this representation are defined. These descriptors consist of subsets of lines of curvature and their intersections and are based on local descriptions of smooth surfaces. The surface structure curves are derived from the zero-crossings, asymptotes and gradient directions of the Gaussian and mean curvatures of the surface. A smooth surface sketch in terms of the geometrical structures of enclosing boundaries of bumps and dents, ridge and valley lines, and peaks and pits is developed. A hierarchical description of curved surfaces that leads to a global shape representation of the object is obtained from these descriptors. To handle the discontinuities of surface curvatures, a computational scheme is introduced in which gradient directions of surface curvatures at the discontinuities can be inferred. Simulation results on the computation of these descriptors from curved surfaces are shown. Potential applications of these representation schemes in computer vision tasks are discussed.<>
Starting Page	304
Ending Page	308
File Size	537682
Page Count	5
File Format	PDF
ISBN	0818620579
DOI	10.1109/ICCV.1990.139537
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-12-04
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shape Laboratories Surface structures Surface reconstruction Computational modeling Application software Computer vision Object recognition Image reconstruction Robustness
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

On surface curvature computation from level set contours

Representing and comparing shapes using shape polynomials

An Improved Curvature Coding For Planar Shape Representation

Single View Reconstruction of Curved Surfaces

3D surface modeling from range curves

Geometric context from a single image

Design and reconstruction of fractal surfaces

Recovering shape characteristics on near-flat specular surfaces

Coping With Discontinuities In Computer Vision: Their Detection, Classification, And Measurement

Representing surface curvature discontinuities on curved surfaces

Similar Documents

On surface curvature computation from level set contours

Representing and comparing shapes using shape polynomials

An Improved Curvature Coding For Planar Shape Representation

Single View Reconstruction of Curved Surfaces

3D surface modeling from range curves

Geometric context from a single image

Design and reconstruction of fractal surfaces

Recovering shape characteristics on near-flat specular surfaces

Coping With Discontinuities In Computer Vision: Their Detection, Classification, And Measurement

Representing surface curvature discontinuities on curved surfaces