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TrackerPlugin_EyeTracker/README.md
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# Description | |
Plugin to perform eye tracking with [PylonRecorder](https://software.scic.corp.brain.mpg.de/projects/PylonRecorder/). | |
Detects the location of the pupil and a corneal reflection in a video. Fits an ellipse around the pupil to determine | |
its diameter. | |
# Algorithm | |
Two threshold are being applied to determine the pupil as the darkest area | |
in the image and the corneal reflection as the brightest area in the image. | |
A minimum and maximum Size can be specified for these areas. In case of | |
the pupil an ellipse is fitted around the resulting binary image and the | |
mean of both perpendicular axes is used to calculate the diameter. The center | |
of the ellipse describes the center of the pupil. In case of the corneal | |
reflection the center of mass of the binary image is used to determine | |
the corneas location. | |
# Usage | |
1. Move and resize the rectangles to set the rois around pupil and the corneal reflection. | |
2. Enable Tracking preview in pylonRecorder and enable the "binary" checkbox to | |
show the thresholded image. | |
3. Use the sliders to adjust the threshold until | |
the pupil and corneal reflection are well separated from the background. | |
4. Disable the "binary" threshold once you are happy with the tracking result. | |
## Plugins | |
To use this plugin for PylonRecorder you need to download and place | |
the plugin's shared library (on windows a .dll file) into the PylonRecorder | |
program folder. PylonRecorder will then automatically detect and load the plugin. | |
# Bugs | |
Please report all bugs [here](mailto:sciclist@brain.mpg.de) |