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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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English 日本語
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English 日本語
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MYU K.K.
Sensors and Materials
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The Art of Writing Scientific Papers
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 30, Number 5(2) (2018)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 1165-1174
S&M1573 Technical Paper of Special Issue https://doi.org/10.18494/SAM.2018.1785 Published: May 31, 2018 Autofocus System and Evaluation Methodologies: A Literature Review [PDF] Yupeng Zhang, Liyan Liu, Weitao Gong, Haihua Yu, Wei Wang, Chongying Zhao, Peng Wang, and Toshitsugu Ueda (Received October 24, 2017; Accepted January 19, 2018) Keywords: autofocus, digital camera, thermal infrared camera, search algorithm, focus measure function
The autofocus system has gained popularity in over 40 years. Embedded in a camera, it is able to bring the best focused image to the viewer within a few seconds, which frees users from focusing manually. An autofocus system usually consists of a motor, a lens and the processing and control units. Within years of development, the autofocus system has become mature in terms of both technology and market, and many fast and accurate autofocus systems have been introduced and widely installed in compact cameras and digital single lens reflex (DSLR) cameras. On the other hand, the market for thermal infrared cameras has been increasingly growing in recent years owing to their decreasing cost and wide use by both civilians and the military. The autofocus system in those cameras adopted similar but more challenging mechanisms. This article serves as a literature review of the state of the art of the autofocus system in both visible light digital cameras and thermal infrared cameras.
Corresponding author: Yupeng Zhang Cite this article Yupeng Zhang, Liyan Liu, Weitao Gong, Haihua Yu, Wei Wang, Chongying Zhao, Peng Wang, and Toshitsugu Ueda, Autofocus System and Evaluation Methodologies: A Literature Review, Sens. Mater., Vol. 30, No. 5, 2018, p. 1165-1174. |
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- A Prototype Portable Voltammetric Sensor for Determining Titratable Acidity of Sake and Moromi
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Keita Murai, Hiroki Yamaguchi, Satoru Furuuchi, Kazutoshi Takahashi, Uno Tagami, Moemi Tatsumi, Toshimi Mizukoshi, Hiroshi Miyano, Shuntaro Okauchi, and Masayuki Sugiki - Development of Portable Multi-fluorescence Detection System Using Indium Tin Oxide Heater for Loop-mediated Isothermal Amplification
Ryo Ishii, Sota Hirose, Shoji Yamamoto, Kazuhiro Morioka, Akihide Hemmi, and Hizuru Nakajima - Reproduction of Absorption Spectra of Bromothymol Blue–Methyl Red Mixed Indicator from RGB and L*a*b* Color Coordinates and Application to Fast Spectrum Acquisition
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- A Prototype Portable Voltammetric Sensor for Determining Titratable Acidity of Sake and Moromi
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