Automated Malaria Parasite Detection
1977 (English)Report (Other academic)
A system for malaria parasite detection in thin blood-smears is presented. Sample slides prepared with standard methods are accepted. A low-cost TV-camera mounted on an ordinary microscope with a computer controlled stage is used as a picture sensor. Frames, digitized in windows of 64 x 64 pixels are fed into a special purpose picture processor at normal frame rate (25 frames/sec). In the picture processor measurements are made on the images at high speed. The classification problem is split into different levels each having different characteristics such as different sampling density. Four classes, three of which are different types of malaria parasites, are recognized. As a whole the classification is best labelled as a sequential pattern recognition procedure.
In its preliminary version the system has been run at a speed comparable to that of a human operator, that is l 500 cells per minute. A test on 80 000 cells gave 25 false negatives out of 283 parasites (9%) and 41 false positives (0.05%).
Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 1977. , 21 p.
LiTH-ISY-I, ISSN 0281-6253 ; 185
Signal Processing Computer Vision and Robotics (Autonomous Systems) Medical Laboratory and Measurements Technologies Other Medical Engineering Medical Equipment Engineering
IdentifiersURN: urn:nbn:se:liu:diva-131940ISRN: LiTH-ISY-I-0185OAI: oai:DiVA.org:liu-131940DiVA: diva2:1034464