一种用于POCT的嵌入式实时图像采集处理系统.pdf

16 4 Vol. 16 No. 4 2008 4 Optics and Precision Engineering Apr.2008 1004924X( 2008) POCT 1, 2 1 1 童 超 , 金庆辉 , 赵建龙 ( 1. 中国科学院上海微系统与信息技术研究所, 上海200050;2. 中国科学院研究生院, 北京 100039) :POCT( PointofCare Test) (FPGA) , : 6 TFT 1.3! 10 pixel15 frame/ s , , DNA 10 m, ∀ 1.5%, POCT : 实时图像采集; 现场可编程门阵列; POCT :T P391 : A Novel real time image collection system for pointofcare test 1, 2 1 1 T ONG Chao , JIN QingHui , ZHAO JianLong ( 1. Shanghai Institute of Microsystem and Inf ormation Technology , ChineseA cademy of Sciences, Shanghai 200050, China; 2. Graduate School of the Chinese A cademy of Sciences, Beij ing 100049, China) Abstract: In order to capture and process the image signals in biochemical results using PointofCare Test(POCT) devices, a realtime imaging and processing system based on Field Pragramm GateArray (FPGA) is developed. T he design and developing processes of software and hardware are introduced. The experimental results indicate that this system can display 1. 3 megapixels and up to 15 frame/ s video in real timeon theT FT screen,and the detection precision for DNA micro arrays can reach to 10 m after fitting together a microsope system. Compared with the results of the large scale detecting system in the laboratory, the detection error can be controlled within ∀ 1.5% , which can satisfy the detecting requirements of real time, higher precision, quick detection and convenience for carrying in the POCT devices. Key words: real time image capturing; Field Pragramm Gate Array ( FPGA) ; Pointof Care T est ( POCT) :