The implementation of embedded image acquisition based on V4L2

Author

Yinli, Lu ; Hongli, Yu ; Pengpeng, Zhang

Author_Institution

Dept. of Electr. Eng., Univ. of South China, Hengyang, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

549

Lastpage

552

Abstract

In view of the current situation of the less embedded Linux image acquisition application based on V4L2(Video for Linux Two), embedded image acquisition system based on V4L2 is designed.S3C6410 is adopted as hardware development platform and Linux as software platform. After loading the driver of CMOS camera OV9650 and other relative drivers, image acquisition applications on the basis of V4L2 is compiled, adopting double frame buffer to reduce CPU utilization rate to accomplish acquisition and preview image. With the size of 400×480 and the frame rate of 15 frames per second, the picture collected shows clearly and it has good quality. The experiment result indicates that the system has good scalability, and it offers a new idea for embedded hand-held devices.

Keywords

CMOS image sensors; Linux; data acquisition; video signal processing; CPU utilization rate reduction; OV9650 CMOS camera; S3C6410; V4L2; Video-for-Linux Two; double-frame buffer; embedded Linux image acquisition application; embedded hand-held devices; hardware development platform; software platform; CMOS integrated circuits; Cameras; Educational institutions; Hardware; Kernel; Linux; Streaming media; OV9650; S3C6410; V4L2; double frame buffer; image acquisition;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6067740

Filename

6067740