Please enable JavaScript.
Coggle requires JavaScript to display documents.
L18 Eye Tracking - Coggle Diagram
L18 Eye Tracking
video-based IR tracking
pupil centre corneal reflection PCCR
hindered by glx + dark irises
non-contact
modes
dark vs bright pupil
head fixed vs head free to move
landmarks
pupil centre
purkinje image I
examples
EyeLink 1000 (gold std)
tobii (consumer)
assumed gaze
blind spot monitoring -> heijl-kraukau
ret sensitivity regional diff
gaze deviation from visual system
change in stimulus responses
electroretinogram
eccentric fixation
unstable fixation
deep learning/CNN
CNN enable sight -> compt
training datavbase dep
AI based, emphasis on CNN
method
applications
behavioural disorders
assistive tech
marketing/advertising
gaming industry
manual methods DIY
terrible accuracy
sometimes sufficient
direct eye movement observation
show images of preference
other
purpose
point of gaze/eye motion measurement
cognitive + CNS integrity + VF
ophthalmic applications
sports vision
neurological diagnosis + care
paediatric/behavioural
eye neural circuits distributed t/o brain
optokinetic nystagmus
smooth pursuit
saccadic eye movement
reading assessment
cover tes
visual field testing
fixation stability
current challenges
threats to internal validity
contamination from normal reflex
eye-mind assumption
privacy + ethics
electro-oculography
eye movement via change in EM field
high temp res, poor spatial accuracy
electric currents induced by coil mag field