Device and method for evaluating a performance of a visual equipment for a visual task

A method for evaluating a performance of a visual equipment for at least one wearer of said visual equipment to perform at least one visual task, the method comprising:

• obtaining a model of a scene where said at least one visual task is performed;
• obtaining a model of said at least one visual task, the model of said at least one visual task comprising a sequence of points to be looked at in the model of the scene;
• obtaining a model of said wearer, the model of the wearer comprising a head movable with respect to the model of the scene and at least one eye rotationally movable with respect to the head, said visual equipment cooperating with said at least one eye;
• determining by at least one processor at least one head posture for respectively at least one of said points so that the model of the wearer looks respectively at said at least one of said points;
• determining by at least one processor at least one task-directed performance parameter for said wearer performing said at least one visual task with said at least one head posture for respectively said at least one of said points, on the basis of said wearer model, said scene model and said visual task model;
• and
• providing said at least one task-directed performance parameter for determining to which extent said visual equipment is appropriate for said wearer.

A non-transitory computer-readable medium on which is stored a computer program for evaluating a performance of a visual equipment for at least one wearer of said visual equipment to perform at least one visual task, the computer program comprising one or more sequences of instructions that are accessible to a processor and that, when executed by said processor, cause said processor to:

• obtain a model of a scene where said at least one visual task is performed;
• obtain a model of said at least one visual task, the model of said at least one visual task comprising a sequence of points to be looked at in the model of the scene;
• obtain a model of said wearer, the model of the wearer comprising a head movable with respect to the model of the scene and at least one eye rotationally movable with respect to the head, said visual equipment cooperating with said at least one eye;
• determine at least one head posture for respectively at least one of said points so that the model of the wearer looks respectively at said at least one of said points;
• determine at least one task-directed performance parameter for said wearer performing said at least one visual task with said at least one head posture for respectively said at least one of said points, on the basis of said wearer model, said scene model and said visual task model;
• and
• provide said at least one task-directed performance parameter for determining to which extent said visual equipment is appropriate for said wearer.