A new fast and accurate training-based auto-focus for mobile-phone cameras

Seung Yong Lee; Hyo Tae Lee; Il Yong Lee; Jong Woo Han; Sung Jea Ko

doi:10.1109/ICCE.2011.5722939

A new fast and accurate training-based auto-focus for mobile-phone cameras

Seung Yong Lee, Hyo Tae Lee, Il Yong Lee, Jong Woo Han, Sung Jea Ko

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

Abstract

In this paper, we propose a fast and accurate auto-focusing method for mobile phone cameras. The proposed method first extracts a feature vector consisting of the focus value increment ratios at the predefined lens positions. Then, the best in-focus lens position is estimated by comparing the input feature vector and the training database. Experimental results show that the proposed method is superior to the conventional methods in terms of the searching speed.

Original language	English
Title of host publication	2011 IEEE International Conference on Consumer Electronics, ICCE 2011
Pages	95-96
Number of pages	2
DOIs	https://doi.org/10.1109/ICCE.2011.5722939
Publication status	Published - 2011
Event	2011 IEEE International Conference on Consumer Electronics, ICCE 2011 - Las Vegas, NV, United States Duration: 2011 Jan 9 → 2011 Jan 12

Publication series

Name	Digest of Technical Papers - IEEE International Conference on Consumer Electronics
ISSN (Print)	0747-668X

Other

Other	2011 IEEE International Conference on Consumer Electronics, ICCE 2011
Country/Territory	United States
City	Las Vegas, NV
Period	11/1/9 → 11/1/12

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/ICCE.2011.5722939

Cite this

Lee, S. Y., Lee, H. T., Lee, I. Y., Han, J. W., & Ko, S. J. (2011). A new fast and accurate training-based auto-focus for mobile-phone cameras. In 2011 IEEE International Conference on Consumer Electronics, ICCE 2011 (pp. 95-96). Article 5722939 (Digest of Technical Papers - IEEE International Conference on Consumer Electronics). https://doi.org/10.1109/ICCE.2011.5722939

A new fast and accurate training-based auto-focus for mobile-phone cameras. / Lee, Seung Yong; Lee, Hyo Tae; Lee, Il Yong et al.
2011 IEEE International Conference on Consumer Electronics, ICCE 2011. 2011. p. 95-96 5722939 (Digest of Technical Papers - IEEE International Conference on Consumer Electronics).

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

Lee, SY, Lee, HT, Lee, IY, Han, JW & Ko, SJ 2011, A new fast and accurate training-based auto-focus for mobile-phone cameras. in 2011 IEEE International Conference on Consumer Electronics, ICCE 2011., 5722939, Digest of Technical Papers - IEEE International Conference on Consumer Electronics, pp. 95-96, 2011 IEEE International Conference on Consumer Electronics, ICCE 2011, Las Vegas, NV, United States, 11/1/9. https://doi.org/10.1109/ICCE.2011.5722939

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AB - In this paper, we propose a fast and accurate auto-focusing method for mobile phone cameras. The proposed method first extracts a feature vector consisting of the focus value increment ratios at the predefined lens positions. Then, the best in-focus lens position is estimated by comparing the input feature vector and the training database. Experimental results show that the proposed method is superior to the conventional methods in terms of the searching speed.

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A new fast and accurate training-based auto-focus for mobile-phone cameras

Abstract

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