Title :
Development and study of lateral flow test strip reader based on embedded system
Author :
Jianchun, Mei ; Qing, Ye ; Wenyuan, Zhou ; Wangwei, Hui ; Jianguo, Tian
Author_Institution :
Adv. Technol. Inst., Nankai Univ., Tianjin, China
Abstract :
We have designed and fabricated a new lateral flow test strip reader based on ARM processor and embedded Linux operating system. The instrument uses green light-emitting diode as the light source, captures the test strip image with high-resolution CMOS image sensor, and then use the image-processing method to calculate the result. It has many advantages such as rapid, easy-to-use and reliable. When testing cocaine fluid of different concentrations, the analysis result of test strips shows that the accuracy is 1ng/ml and CV (coefficient of variation) is less than 3%. The instrument could also be used on other kinds of lateral flow strips.
Keywords :
CMOS image sensors; image processing; light emitting diodes; ARM processor; embedded Linux operating system; embedded system; green light emitting diode; high resolution CMOS image sensor; image processing method; lateral flow test strip reader; light source; CMOS integrated circuits; Educational institutions; Fluids; Image color analysis; Instruments; Optical sensors; Strips; ARM; CMOS; lateral flow; test strip reader;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037713
