Title :
An FPGA based generic prototyping platform employed in a CMOS laser Doppler blood flow camera
Author :
Zhu, Yiqun ; Hayes-Gill, B.R. ; Morgan, Steve P. ; Hoang, Nguyen C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nottingham Univ.
Abstract :
This paper presents an FPGA based generic prototyping platform employed in a CMOS laser Doppler blood flow imaging application. The proposed platform consists of a Xilinx Spartan-3 FPGA device, Analog Device 125MSPS, 14-bit ADCs, Cypress 167MHz, 2Mtimes18bits QDR memory, and a highspeed (480MHz) USB 2.0 link. In this platform, the FPGA device not only acts as controllers of the ADCs, QDR memory and the USB link, but also provides a high-speed FFT processing capability, which is a key computation in laser Doppler blood flowmetry. Based on this platform, with the number of FFT points of 1024, a full-field laser Doppler blood flowmetry imaging system can deliver flow image frames (256x256 pixels) every 1.7 seconds, which is seven times faster than existing systems
Keywords :
CMOS image sensors; analogue-digital conversion; cameras; field programmable gate arrays; flowmeters; haemodynamics; 1.7 sec; 14 bit; 167 MHz; 18 bit; 256 pixels; 480 MHz; CMOS laser Doppler blood flow camera; FFT processing; QDR memory; USB link; analog-digital converters; flow image frames; generic prototyping; Blood flow; CMOS image sensors; CMOS technology; Cameras; Field programmable gate arrays; Frequency; Image sampling; Pixel; Prototypes; Universal Serial Bus;
Conference_Titel :
Field Programmable Technology, 2006. FPT 2006. IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9729-0
Electronic_ISBN :
0-7803-9729-0
DOI :
10.1109/FPT.2006.270328
