Realization of auto-focusing system for cameras based on TMS320F2812 DSP

Author

Zhi-chao, Chen ; Tao, Zhang

Author_Institution

Changchun Inst. of Opt., Fine Mech. & Phys., Changchun, China

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

4642

Lastpage

4645

Abstract

Focusing systems play an important role in a variety of optical measurements and detection instruments. In this paper, several kinds of auto-focusing methods were described and the relevant focusing evaluation functions were introduced based on image processing methods. An auto-focusing system based on image processing was designed by using the TMS320F2812 digital signal processing chip as a platform. Moreover, some problem and solutions about auto-focusing system was demonstrated . The system designed in this paper can find the good image plane in 10 steps (about 5 second),thus it can meet the requirements of practical applications.

Keywords

cameras; digital signal processing chips; image processing; optical self-focusing; optical sensors; TMS320F2812 DSP; autofocusing system; cameras; digital signal processing chip; image processing method; optical detection instrument; optical measurement; Cameras; Digital signal processing; Focusing; Image processing; Lenses; Optical variables measurement; Real time systems; aerial camera; auto-focusing system; digital signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6057786

Filename

6057786