Bootstrap initialization of nonparametric texture models for tracking

Kentaro Toyama, Ying Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In bootstrap initialization for tracking, we exploit a weak prior model used to track a target to learn a stronger model, without manual intervention. We define a general formulation of this problem and present a simple taxonomy of such tasks. The formulation is instantiated with algorithms for bootstrap initialization in two domains: In one, the goal is tracking the position of a face at a desktop; we learn color models of faces, using weak knowledge about the shape and movement of faces in video. In the other task, we seek coarse estimates of head orientation; we learn a person-specific ellipsoidal texture model for heads, given a generic model. For both tasks, we use nonparametric models of surface texture. Experimental results verify that bootstrap initialization is feasible in both domains. We find that (1)independence assumptions in the learning process can be violated to a significant degree, if enough data is taken; (2)there are both domain-independent and domain-specific means to mitigate learning bias; and (3)repeated bootstrapping does not necessarily result in increasingly better models.

Original languageEnglish (US)
Title of host publicationComputer Vision - 6th European Conference on Computer Vision, ECCV 2000, Proceedings
EditorsDavid Vernon
PublisherSpringer Verlag
Pages119-133
Number of pages15
ISBN (Print)3540676864
DOIs
StatePublished - Jan 1 2000
Event6th European Conference on Computer Vision, ECCV 2000 - Dublin, Ireland
Duration: Jun 26 2000Jul 1 2000

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume1843
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other6th European Conference on Computer Vision, ECCV 2000
CountryIreland
CityDublin
Period6/26/007/1/00

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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    Toyama, K., & Wu, Y. (2000). Bootstrap initialization of nonparametric texture models for tracking. In D. Vernon (Ed.), Computer Vision - 6th European Conference on Computer Vision, ECCV 2000, Proceedings (pp. 119-133). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 1843). Springer Verlag. https://doi.org/10.1007/3-540-45053-X_8