# Reference Image Mapper

# gaze.csv

This file contains all the mapped gaze data from all sections.

Field	Description
section id	Unique identifier of the corresponding section.
recording id	Unique identifier of the recording this sample belongs to.
timestamp [ns]	UTC timestamp in nanoseconds of the sample. Equal to the timestamp of the original gaze sample before mapping.
gaze detected in reference image	Boolean indicating whether or not the gaze point was detected inside or outside of the reference image.
gaze position in reference image x [px]	Float value representing the x-coordinate of the mapped gaze point in pixel coordinates. If the reference image was not detected in the scene at the given time this value is empty.
gaze position in reference image y [px]	Same as "gaze position in reference image x [px]" but for the y-coordinate.
fixation id	If this gaze sample belongs to a fixation event, this is the corresponding id of the fixation. Otherwise, this field is empty.
blink id	If this gaze samples belongs to a blink event, this is the corresponding id of the blink. Otherwise this field is empty.

This file contains fixation events detected in the gaze data stream and mapped to the reference image.

Field	Description
section id	Unique identifier of the corresponding section.
recording id	Unique identifier of the recording this sample belongs to.
fixation id	Identifier of fixation within the section. The id corresponds to the fixation id of the raw unmapped data.
start timestamp [ns]	UTC timestamp in nanoseconds of the start of the fixation.
end timestamp [ns]	UTC timestamp in nanoseconds of the end of the fixation.
duration [ms]	Duration of the fixation in milliseconds.
fixation detected in reference image	Boolean indicating whether or not the fixation was inside or outside of the reference image.
fixation x [px]	Float value representing the x-coordinate of the fixation in reference image coordinates. This position is the average of all mapped gaze samples within the fixation.
fixation y [px]	Same as "fixation x [px]" but for the y-coordinate.

The reference image that was used for defining the enrichment. The file is named reference_image.jpeg|png.