Fast and efficient MRF-based blotch detection algorithm for degraded film sequences

Sang Churl Nam, Masahide Abe, Masayuki Kawamata

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

Abstract

This paper proposes an efficient blotch detection algorithm based on a Markov Random Field (MRF) model with less computational complexity and with lower false alarm rate man the existing MRF-based blotch detection algorithms. In our algorithm, by restricting the attention of the detection process only to the candidate blotch detection areas, our proposed algorithm can save the computational time for detecting the blotches. The problem, of the confusion with the blotches is frequently seen in the vicinity of the moving object: due-to the poorly estimated motion vectors. To solve the problem, we first find the moving edge pixels using the significant test between the forward and backward motion-compensated frames, and then incorporate the weighting function with respect to the detected moving edge pixels into the MRF model. Experimental result shows that our proposed method provides the computational simplicity and an efficient detecting performance for the blotches.

Original languageEnglish
Title of host publication2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages100-103
Number of pages4
ISBN (Print)9781424414475
DOIs
Publication statusPublished - 2007 Jan 1
Event2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Xiamen, China
Duration: 2007 Nov 282007 Dec 1

Publication series

Name2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings

Other

Other2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007
CountryChina
CityXiamen
Period07/11/2807/12/1

Keywords

  • Blotches
  • Image and video processing
  • MRF-models
  • Restoration

ASJC Scopus subject areas

  • Computer Science Applications
  • Signal Processing
  • Software
  • Electrical and Electronic Engineering
  • Mathematics(all)

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  • Cite this

    Nam, S. C., Abe, M., & Kawamata, M. (2007). Fast and efficient MRF-based blotch detection algorithm for degraded film sequences. In 2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings (pp. 100-103). [4445833] (2007 International Symposium on Intelligent Signal Processing and Communications Systems, ISPACS 2007 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISPACS.2007.4445833