Title :
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
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;
Conference_Titel :
Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6539-2
DOI :
10.1109/ICACTE.2010.5579309
