Occlusion handling for object tracking using a fast level set method

Tracking objects in image sequences is a difficult problem because of the frequent occlusions encountered among the objects and people. In this paper, a method for tracking objects through occlusions based on a level set technique, is presented. Two cases are considered: 1-the object is obstructed b...

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Autores principales: Gambini, María Juliana, Buemi, María Elena, Mejail, Marta Estela
Publicado: 2008
Materias:
Color
Color image processing
Computational geometry
Computer graphics
Curve fitting
Digital image storage
Image processing
Imaging systems
Level measurement
Optical properties
Active contours
Classic algorithms
Classical algorithms
Curve fits
Fast level set methods
Image objects
Image sequences
Level set techniques
Object of interests
Object tracking
Occlusion handlings
Tracking objects
Edge detection
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97807695_v_n_p61_Gambini
http://hdl.handle.net/20.500.12110/paper_97807695_v_n_p61_Gambini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_97807695_v_n_p61_Gambini
record_format dspace
spelling paper:paper_97807695_v_n_p61_Gambini2023-06-08T16:37:08Z Occlusion handling for object tracking using a fast level set method Gambini, María Juliana Buemi, María Elena Mejail, Marta Estela Color Color image processing Computational geometry Computer graphics Curve fitting Digital image storage Image processing Imaging systems Level measurement Optical properties Active contours Classic algorithms Classical algorithms Curve fits Fast level set methods Image objects Image sequences Level set techniques Object of interests Object tracking Occlusion handlings Tracking objects Edge detection Tracking objects in image sequences is a difficult problem because of the frequent occlusions encountered among the objects and people. In this paper, a method for tracking objects through occlusions based on a level set technique, is presented. Two cases are considered: 1-the object is obstructed by another one of a different color. 2-the object is obstructed by another one of the same color. In the first case, the classical algorithms based on active contours fail to track the object's contour because the curve disappears from the scene. In this proposal, occlusion is detected and the solution is based on keeping the curve in the same place until the object of interest appears in the scene again. In the second case, the classic algorithms based on active contours do not distinguish between two image objects of the same color, so due to the possible changes in the topology, the curve fits the edge of both objects and it is divided. We solve this problem by means of localizing the centroid of the curve. The experimental results show that these methods significantly improve the tracking with occlusions. © 2008 IEEE. Fil:Gambini, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Buemi, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mejail, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97807695_v_n_p61_Gambini http://hdl.handle.net/20.500.12110/paper_97807695_v_n_p61_Gambini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Color
Color image processing
Computational geometry
Computer graphics
Curve fitting
Digital image storage
Image processing
Imaging systems
Level measurement
Optical properties
Active contours
Classic algorithms
Classical algorithms
Curve fits
Fast level set methods
Image objects
Image sequences
Level set techniques
Object of interests
Object tracking
Occlusion handlings
Tracking objects
Edge detection
spellingShingle Color
Color image processing
Computational geometry
Computer graphics
Curve fitting
Digital image storage
Image processing
Imaging systems
Level measurement
Optical properties
Active contours
Classic algorithms
Classical algorithms
Curve fits
Fast level set methods
Image objects
Image sequences
Level set techniques
Object of interests
Object tracking
Occlusion handlings
Tracking objects
Edge detection
Gambini, María Juliana
Buemi, María Elena
Mejail, Marta Estela
Occlusion handling for object tracking using a fast level set method
topic_facet Color
Color image processing
Computational geometry
Computer graphics
Curve fitting
Digital image storage
Image processing
Imaging systems
Level measurement
Optical properties
Active contours
Classic algorithms
Classical algorithms
Curve fits
Fast level set methods
Image objects
Image sequences
Level set techniques
Object of interests
Object tracking
Occlusion handlings
Tracking objects
Edge detection
description Tracking objects in image sequences is a difficult problem because of the frequent occlusions encountered among the objects and people. In this paper, a method for tracking objects through occlusions based on a level set technique, is presented. Two cases are considered: 1-the object is obstructed by another one of a different color. 2-the object is obstructed by another one of the same color. In the first case, the classical algorithms based on active contours fail to track the object's contour because the curve disappears from the scene. In this proposal, occlusion is detected and the solution is based on keeping the curve in the same place until the object of interest appears in the scene again. In the second case, the classic algorithms based on active contours do not distinguish between two image objects of the same color, so due to the possible changes in the topology, the curve fits the edge of both objects and it is divided. We solve this problem by means of localizing the centroid of the curve. The experimental results show that these methods significantly improve the tracking with occlusions. © 2008 IEEE.
author Gambini, María Juliana
Buemi, María Elena
Mejail, Marta Estela
author_facet Gambini, María Juliana
Buemi, María Elena
Mejail, Marta Estela
author_sort Gambini, María Juliana
title Occlusion handling for object tracking using a fast level set method
title_short Occlusion handling for object tracking using a fast level set method
title_full Occlusion handling for object tracking using a fast level set method
title_fullStr Occlusion handling for object tracking using a fast level set method
title_full_unstemmed Occlusion handling for object tracking using a fast level set method
title_sort occlusion handling for object tracking using a fast level set method
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97807695_v_n_p61_Gambini
http://hdl.handle.net/20.500.12110/paper_97807695_v_n_p61_Gambini
work_keys_str_mv AT gambinimariajuliana occlusionhandlingforobjecttrackingusingafastlevelsetmethod
AT buemimariaelena occlusionhandlingforobjecttrackingusingafastlevelsetmethod
AT mejailmartaestela occlusionhandlingforobjecttrackingusingafastlevelsetmethod
_version_ 1768545259680169984

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