NDLI: Detection of elongated structures by using invertible angular representations of scalar images

Content Provider	IEEE Xplore Digital Library
Author	Kalitzin, S.N. Ter Haar Romeny, B.M. Viergever, M.A.
Copyright Year	1998
Description	Author affiliation: Image Sci. Inst., Utrecht Univ., Netherlands (Kalitzin, S.N.)
Abstract	A unitary approach for locally apertured orientation analysis of 2D and 3D scalar images is proposed. The size of the local aperture (the scale) needed for the orientation representation induces in general a loss of spatial acuity, or blur. Our construction permits a compensation of the blur by a reconstruction procedure. For this purpose, a special scale-dependent orientation bundle (map of the visual space into a function of both position and orientation) is built from the local Gaussian-derivatives jet of a scalar image. In this construction there is an invertible relation between the orientation bundle and the original image in the space domain. This invertible transformation is used to regain the original acuity in the spatial domain after analyzing orientation features at any given scale. This type of orientation "encoding" might contribute to understand both the role of orientation columns and the hyper-acuity phenomenon in biological visual systems. The approach turns out to be highly effective for the detection of elongated structures and for removal of elongated artifacts in 2D images. The results from the detection task can be enhanced by applying an anisotropic diffusion of the orientation field and thus closing missing contour segments.
Starting Page	60
Ending Page	64
File Size	735050
Page Count	5
File Format	PDF
ISBN	0818688211
DOI	10.1109/ICIP.1998.998997
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-10-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Apertures Kernel Image analysis Visual system Power harmonic filters Image reconstruction Gaussian processes Anisotropic magnetoresistance Image segmentation Pixel
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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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