NDLI: Approximate orientation steerability based on angular Gaussians

Content Provider	IEEE Xplore Digital Library
Author	Weichan Yu Daniilidis, K. Sommer, G.
Copyright Year	1992
Abstract	Junctions are significant features in images with intensity variation that exhibits multiple orientations. This makes the detection and characterization of junctions a challenging problem. The characterization of junctions would ideally be given by the response of a filter at every orientation. This can be achieved by the principle of steerability that enables the decomposition of a filter into a linear combination of basis functions. However, current steerability approaches suffer from the consequences of the uncertainty principle: in order to achieve high resolution in orientation they need a large number of basis filters increasing, thus, the computational complexity. Furthermore, these functions have usually a wide support which only accentuates the computational burden. We propose a novel alternative to current steerability approaches. It is based on utilizing a set of polar separable filters with small support to sample orientation information. The orientation signature is then obtained by interpolating orientation samples using Gaussian functions with small support. Compared with current steerability techniques our approach achieves a higher orientation resolution with a lower complexity. In addition, we build a polar pyramid to characterize junctions of arbitrary inherent orientation scales.
Sponsorship	IEEE Signal Processing Society
Starting Page	193
Ending Page	205
Page Count	13
File Size	451279
File Format	PDF
ISSN	10577149
Volume Number	10
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gaussian approximation Nonlinear filters Information filtering Information filters Gaussian processes Computational complexity Interpolation Uncertainty Image processing Object recognition
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

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

Approximate orientation steerability based on angular gaussians (1999).

Steerable wedge filters for local orientation analysis

Approximate Orientation Steerability Based on Angular Gaussians (1999)

Approximate Orientation Steerability Based on Angular Gaussians (2000)

Approximate Orientation Steerability Based on Angular Gaussians (2000)

Approximate orientation steerability based on angular gaussians (2001).

Image reduction for object recognition

Efficient and reliable schemes for nonlinear diffusion filtering

Nonlinear scale-space filtering and multiresolution system

Approximate orientation steerability based on angular Gaussians

Similar Documents

Approximate orientation steerability based on angular gaussians (1999).

Steerable wedge filters for local orientation analysis

Approximate Orientation Steerability Based on Angular Gaussians (1999)

Approximate Orientation Steerability Based on Angular Gaussians (2000)

Approximate Orientation Steerability Based on Angular Gaussians (2000)

Approximate orientation steerability based on angular gaussians (2001).

Image reduction for object recognition

Efficient and reliable schemes for nonlinear diffusion filtering

Nonlinear scale-space filtering and multiresolution system

Approximate orientation steerability based on angular Gaussians