pupil-labs / pupil

Open source eye tracking
https://pupil-labs.com
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Surface resolution influences heatmap visualization in non-obvious ways #1695

Open pfaion opened 5 years ago

pfaion commented 5 years ago

In most cases the surface resolution seems to have no effect on the heatmap visualiation. It looks mostly similar in the following cases:

For some reason, choosing a resolution of 100 x 1 will result in a complete different heatmap visualization though. See last image.

1 x 1: image

1 x 100: image

100 x 100: image

100 x 1: image

pfaion commented 5 years ago

Notes from @marc-tonsen : Actually the 100x1 case is expected since the heatmap has only 1 bin in the y direction. The 1x1 and 1x100 cases are unexpected and are probably the result of the algorithm for the visualization priorotizing good looks.

So this is very low priority.