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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Spelling suggestions: "subject:"caffeine detection"" "subject:"eaffeine detection""

1

Real-Time Pupillary Analysis By An Intelligent Embedded System

Hasanzadeh, Mujtaba, Hengl, Alexandra January 2019 (has links)
With no online pupillary analysis methods today, both the medical and the research fields are left to carry out a lengthy, manual and often faulty examination. A real-time, intelligent, embedded systems solution to pupillary analysis would help reduce faulty diagnosis, speed-up the analysis procedure by eliminating the human expert operator and in general, provide a versatile and highly adaptable research tool. Therefore, this thesis has sought to investigate, develop and test possible system designs for pupillary analysis, with the aim for caffeine detection. A pair of LED manipulator glasses have been designed to standardize the illumination method across testing. A data analysis method of the raw pupillary data has been established offline and then adapted to a real-time platform. ANN was chosen as classification algorithm. The accuracy of the ANN from the offline analysis was 94% while for the online classification the obtained accuracy was 17%. A realtime data communication and synchronization method has been developed. The resulting system showed reliable and fast execution times. Data analysis and classification took no longer than 2ms, faulty data detection showed consistent results. Data communication suffered no message loss. In conclusion, it is reported that a real-time, intelligent, embedded solution is feasible for pupillary analysis.
Real-time
Embedded system
Intelligent
Pupillary analysis
Machine learning
AI
Artificial intelligence
ANN
Neural network
Caffeine detection
Pupillary light reflex
PLR
Eye tracker
Classification
Smart camera
Pupillary features
Computer Systems
Datorsystem
Embedded Systems
Inbäddad systemteknik
Signal Processing
Signalbehandling
Robotics
Robotteknik och automation

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