Eye tracking device operating method and eye tracking device performing active illumination control to improve eye tracking robustness

摘要

The present invention relates to an eye tracking device (30) including an imaging device (32), a plurality of light sources (34), a processing unit, and a control unit, and an operation method thereof. The imaging device (32) captures the first image (36a) when at least one light source (34) is emitting light. When at least one first reflected light (14, 16, 16a-16f) is detected, in the first image (36a) of at least one first reflected light (14, 16, 16a-16f) The position is determined, the first reflected light (14, 16, 16a to 16f) is classified based on the position in the first image (36a), and the first image (36a) has a predefined quality standard. Is not satisfied, the plurality of light sources (34) are controlled depending on the classification by changing the luminous intensity of at least one light source (34). [Selection] Figure 2