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

Yen Bor Lin; Chung Ping Young

doi:10.1109/ICIS.2016.7550785

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

Yen Bor Lin, Chung Ping Young

Institute of Medical Informatics

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings
Editors	Kuniaki Uehara, Masahide Nakamura
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781509008063
DOIs	https://doi.org/10.1109/ICIS.2016.7550785
Publication status	Published - 2016 Aug 23
Event	15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016 - Okayama, Japan Duration: 2016 Jun 26 → 2016 Jun 29

Publication series

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

Other

Other	15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016
Country	Japan
City	Okayama
Period	16-06-26 → 16-06-29

All Science Journal Classification (ASJC) codes

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

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Lin, Y. B., & Young, C. P. (2016). An implementation of spatial algorithm to estimate the focus map from a single image. In K. Uehara, & M. Nakamura (Eds.), 2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings [7550785] (2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIS.2016.7550785

Lin, Yen Bor ; Young, Chung Ping. / An implementation of spatial algorithm to estimate the focus map from a single image. 2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings. editor / Kuniaki Uehara ; Masahide Nakamura. Institute of Electrical and Electronics Engineers Inc., 2016. (2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings).

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title = "An implementation of spatial algorithm to estimate the focus map from a single image",

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.",

author = "Lin, {Yen Bor} and Young, {Chung Ping}",

year = "2016",

month = aug,

day = "23",

doi = "10.1109/ICIS.2016.7550785",

language = "English",

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

publisher = "Institute of Electrical and Electronics Engineers Inc.",

editor = "Kuniaki Uehara and Masahide Nakamura",

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

address = "United States",

note = "15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016 ; Conference date: 26-06-2016 Through 29-06-2016",

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Lin, YB & Young, CP 2016, An implementation of spatial algorithm to estimate the focus map from a single image. in K Uehara & M Nakamura (eds), 2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings., 7550785, 2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 15th IEEE/ACIS International Conference on Computer and Information Science, ICIS 2016, Okayama, Japan, 16-06-26. https://doi.org/10.1109/ICIS.2016.7550785

An implementation of spatial algorithm to estimate the focus map from a single image. / Lin, Yen Bor; Young, Chung Ping.

2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings. ed. / Kuniaki Uehara; Masahide Nakamura. Institute of Electrical and Electronics Engineers Inc., 2016. 7550785 (2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - 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.

AB - 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.

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

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Lin YB, Young CP. An implementation of spatial algorithm to estimate the focus map from a single image. In Uehara K, Nakamura M, editors, 2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2016. 7550785. (2016 IEEE/ACIS 15th International Conference on Computer and Information Science, ICIS 2016 - Proceedings). https://doi.org/10.1109/ICIS.2016.7550785

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

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