Case-based background modeling: Associative background database towards low-cost and high-performance change detection

Atsushi Shimada, Yosuke Nonaka, Hajime Nagahara, Rin-Ichiro Taniguchi

Research output: Contribution to journalArticle

11 Citations (Scopus)


Background modeling and subtraction is an essential task in video surveillance applications. Many researchers have discussed about an improvement of performance of a background model, and a reduction of memory usage or computational cost. To adapt to background changes, a background model has been enhanced by introducing various information including a spatial consistency, a temporal tendency, etc. with a large memory allocation. Meanwhile, an approach to reduce a memory cost cannot provide better accuracy of a background subtraction. To tackle the trade-off problem, this paper proposes a novel framework named "case-based background modeling". The characteristics of the proposed method are (1) a background model is created, or removed when necessary, (2) case-by-case model sharing by some of the pixels, (3) pixel features are divided into two groups, one for model selection and the other for modeling. These approaches realize a low-cost and high accurate background model. The memory usage and the computational cost could be reduced by half of a traditional method and the accuracy was superior to the method.

Original languageEnglish
Pages (from-to)1121-1131
Number of pages11
JournalMachine Vision and Applications
Issue number5
Publication statusPublished - Jan 1 2014


All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Computer Science Applications

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