NDLI: Model-based tracking of laboratory animals

Content Provider	IEEE Xplore Digital Library
Author	Kalafatic, Z.
Copyright Year	2003
Description	Author affiliation: Electr. Eng. & Comput. Fac., Zagreb Univ., Croatia (Kalafatic, Z.)
Abstract	We present a system for tracking laboratory animals during pharmacological experiments. As it is usually possible to ensure good contrast between the animals and the background, tracking of a single animal or several physically separated animals can be achieved by relatively simple algorithms. The main problem arises when we try to track several almost identical, uniformly coloured animals during their contacts. To deal with this problem we represent objects by parametrically deformable contour models. The model has been built by observing videos containing a single animal (a laboratory mouse). To reflect symmetry, the model is axial and contains the offsets of the contour segments from the axis of minimal inertia. The deformation is modeled as stretching and bending. The tracking is done in two steps. For the tracking of objects from frame to frame we use the rigidity assumption, i.e. in the first step the contour models which represent objects in the previous frame are translated into new positions. In the second step the object position, rotation and scale, as well as the deformation parameters, are fine-tuned to match the object boundaries. The interframe translation is estimated by minimizing the sum of squared differences (SDD) over the search window for all tracked contour points. The model fitting is based on maximizing the contour energy in terms of the underlying smoothed gradient image. The robustness of the tracking algorithm is improved by adding a supervision module, which detects tracking failures and reinitializes the contours that lose their targets. The system has been tested on real sequences with laboratory animals during pharmacological experiments and has been shown to be robust and efficient. Future extensions will include expert knowledge of biomedical and pharmacological experts. The major goal is to build a system that will provide a tool for objective evaluation of animal behaviour during experiments.
Starting Page	175
Ending Page	178
File Size	464396
Page Count	4
File Format	PDF
ISBN	078037763X
DOI	10.1109/EURCON.2003.1248176
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	Slovenia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laboratories Animals Active contours Image reconstruction Gravity Hidden Markov models Image motion analysis Active shape model Image analysis Image sequence analysis
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

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