DocumentCode
2199593
Title
Auto focus filter design and implementation using correlation between filter and auto focus criterion
Author
Cheol-Hee Park ; Jong-Ho Paik ; Young-Hwan You ; Hyoung-Kyu Song ; Yong-Soo Cho
Author_Institution
Syst. IC Res. Center, Korea Electron. Technol. Inst., South Korea
fYear
2000
fDate
13-15 June 2000
Firstpage
250
Lastpage
251
Abstract
A new filter design method for an auto focus is proposed which can be implemented into a simple hardware. The proposed auto focus filter can be implemented without multipliers. Therefore, we can sharply reduce the number of filter coefficients by the proposed design method. The proposed filter design method is simulated and tested by our hardware system.
Keywords
CCD image sensors; cameras; optical focusing; video cameras; video signal processing; auto focus criterion; auto focus filter design; correlation; filter coefficients; filter criterion; filter design method; implementation; Algorithm design and analysis; Charge coupled devices; Charge-coupled image sensors; Filters; Focusing; Fourier transforms; Frequency; Hardware; Information filtering; Lenses;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics, 2000. ICCE. 2000 Digest of Technical Papers. International Conference on
Conference_Location
Los Angles, CA, USA
Print_ISBN
0-7803-6301-9
Type
conf
DOI
10.1109/ICCE.2000.854611
Filename
854611
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