Research on high-resolution camera drivers based on Windows CE

Author

Song, Lihua ; Wang, Jingjing ; Li, Yebai ; Jian, Yang

Author_Institution

Sch. of Inf. Eng., North China Univ. of Technol., Beijing, China

Volume

2

fYear

2010

fDate

20-22 Aug. 2010

Abstract

During designing the high-resolution camera driver on Windows CE OS, it is a critical issue for the resource limited embedded environment that how to improve the data transfer rate, and make full use of the limited memory resources of Windows CE. This paper realized the 4 million CMOS camera driver on the PXA270 development platform by using Quick Capture Technology, with the data transmission of DMA Descriptor Chain and double-RAM strategy, and provided a functional verification and performance analysis. The results shows good stability and performance, and the results of text recognition show that the accuracy at least 17.5 percent enhancement compared to the image captured by the low-pixel camera.

Keywords

CMOS integrated circuits; cameras; data communication; device drivers; embedded systems; operating systems (computers); software performance evaluation; CMOS camera driver; PXA270; data transfer rate; data transmission; functional verification; high-resolution camera drivers; performance analysis; quick capture technology; resource limited embedded environment; text recognition; windows CE; Buffer storage; CMOS integrated circuits; Cameras; Educational institutions; Image resolution; SDRAM; DMA Descriptor Chain; Quick Capture Technology; double-RAM strategy;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on

Conference_Location

Chengdu

ISSN

2154-7491

Print_ISBN

978-1-4244-6539-2

Type

conf

DOI

10.1109/ICACTE.2010.5579309

Filename

5579309