Image acquisition from CMOS Active Pixel Sensor using RISC processor

Author

Sanketh Kumar, P. ; Shashidhar, B.L. ; Shashank Bhargav, J.

Author_Institution

Dept. of Electron. & Commun., Visvesvaraya Technol. Univ., Bangalore, India

fYear

2010

fDate

15-17 Dec. 2010

Firstpage

74

Lastpage

78

Abstract

CMOS Active Pixel Sensor (APS) are widely prevalent in applications ranging from cell-phone cameras to endoscopes. In this paper, a low-power high performance CMOS APS interface is designed and implemented. This interface helps in easy acquisition of images from OV6620, a CMOS APS, using an ARM7 based 16-bit/32-bit microcontroller LPC2148. The microcontroller first initializes the APS and then proceeds with acquiring images as per the user requirements using Serial Camera Control Bus (SCCB) interface. Finally, the microcontroller sends the acquired image to the computer through serial communication interface. The graphical user interface provided to the user for controlling various functions of the APS like exposure control, gamma, windowing, etc., also displays the image. The hardware and software to implement the above are designed.

Keywords

CMOS image sensors; graphical user interfaces; image resolution; reduced instruction set computing; CMOS APS interface; CMOS active pixel sensor; RISC processor; graphical user interface; image acquisition; serial camera control bus; Image processing; CMOS APS; LPC2148; RISC; SCCB; low power usage; user interface;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal and Image Processing (ICSIP), 2010 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4244-8595-6

Type

conf

DOI

10.1109/ICSIP.2010.5697445

Filename

5697445