Method and apparatus for detecting delay amount of eyeball tracking apparatus, eyeball tracking system, and non-transitory computer-readable storage medium

An apparatus for detecting a delay amount of an eyeball tracking apparatus, comprising:

• a detected coordinate reception module configured to receive a detected gaze point coordinate of a mechanical eye of at least one detection time point, the detected gaze point coordinate being a gaze point coordinate of the mechanical eye obtained by the eyeball tracking apparatus;
• an actual coordinate obtaining module configured to determine an actual gaze point coordinate of the mechanical eye at the at least one detection time point;
• and
• a delay amount determination module configured to determine the delay amount of the eyeball tracking apparatus according to a coordinate difference of the actual gaze point coordinate and the detected gaze point coordinate at the at least one detection time point,
• wherein the delay amount determination module comprises:
• a first determination submodule configured to calculate the coordinate difference between the actual gaze point coordinate and the detected gaze point coordinate at the at least one detection time point;
• and
• a second determination submodule configured to determine the delay amount of the eyeball tracking apparatus according to the coordinate difference and a rotation angular speed of the mechanical eye.