An implementation of spatial algorithm to estimate the focus map from a single image

Yen Bor Lin, Chung Ping Young

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

Abstract

In this paper, the implementation to estimate the focus map spatially based on the intentional reblur of one image, which is the only input data, is presented. This enables flexible computation in the spatial domain, rather than the frequency domain. The gradient magnitude term widely used in image processing was used to derive a ratio map. The pixels closer to the focal point of the camera were on the thinner edge in the proposed ratio map. Oppositely, The edge was wider the when the pixels were far from the focal point. The core of proposed algorithm is introduced and the experimental results demonstrate the enhanced effectiveness, quality, and precision of the proposed algorithm.

Original languageEnglish
Title of host publication2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings
EditorsKuniaki Uehara, Masahide Nakamura
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509008063
DOIs
Publication statusPublished - 2016 Aug 23
Event15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016 - Okayama, Japan
Duration: 2016 Jun 262016 Jun 29

Publication series

Name2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings

Other

Other15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016
CountryJapan
CityOkayama
Period16-06-2616-06-29

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Energy Engineering and Power Technology
  • Control and Optimization

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