Visual axis detecting apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoshiaki Irie
Life of this patent
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Abstract
Disclosed is a visual axis detecting apparatus having: a visual axis detection circuit for detecting a visual axis of an observer; an arithmetic circuit for performing an arithmetic operation of calculating a distributed state of variations of visual axis positions obtained in a plurality of visual axis detections executed by the visual axis detection circuit in a state in which the observer is observing a predetermined point, with respect to the predetermined point; a determination circuit for determining a condition of the visual axis according to the result of detection by the visual axis detection circuit; and a change circuit for changing a determination process of determining the condition of the visual axis by the determination circuit, according to the distributed state of variations.
Claims14
A visual axis detecting apparatus comprising:
- a visual axis detection circuit for detecting a visual axis of an observer;
- an arithmetic circuit for performing an arithmetic operation of calculating a distributed state of variations of visual axis positions obtained in a plurality of visual axis detections executed by the visual axis detection circuit in a state in which the observer is observing a predetermined point, with respect to said predetermined point;
- a determination circuit for determining a condition of the visual axis according to the result of detection by the visual axis detection circuit;
- and
- a change circuit for changing a determination process of determining the condition of the visual axis by the determination circuit, according to the distributed state of variations.
A visual axis detecting apparatus comprising:
- a screen in which a plurality of zones are formed;
- a visual axis detection circuit for detecting a visual axis of an observer;
- an arithmetic circuit for performing an arithmetic operation of calculating a distributed state of variations of visual axis positions obtained in a plurality of visual axis detections executed by the visual axis detection circuit in a state in which the observer is observing a predetermined point on said screen, with respect to said predetermined point;
- a selection circuit for selecting one of said plurality of zones according to the result of detection by said visual axis detection circuit;
- and
- a change circuit for changing a selection process by said selection circuit according to the distributed state of variations.
Dependencies are inferred from the claim text.