Device for simulating a physiological behaviour of a mammal using a virtual mammal, process and computer program

    公开(公告)号:AU2020249323A1

    公开(公告)日:2021-10-28

    申请号:AU2020249323

    申请日:2020-03-20

    Abstract: A device (11) for simulating a behaviour of a mammal in an environment (2) by a Virtual mammal (1 ) includes a mobile (5) head (3) and at least one mobile (6) eye (4). The device comprises a first input for successive data representative of eye poses, a second input for mobility action instructions (9), a memory (13) for storing information on the environment (8) and on stabilization constraints (7), at least one processor (12) configured for assessing a current part of the environment (2) and recording information (8) on said current part, triggering successive movements (5) of the head and of the eye(s) in function of said mobility action, the successive data and the stored information on the environment, controlling a dynamic adjustment of the successive movements of the eye(s) with respect to the successive movements of the head in function of the successive data and by using the stabilization constraints. The device further comprises a third input for training data (23) representative of a training movement sequence of the head and the eye(s) associated with a training environment, the processor(s) learning in a training stage the stabilization constraints through triggering in the training environment successive movements (5) of the head corresponding to said training movement sequence, assessing a current part of the training environment from the training data and recording information on said current part (8'), so that the Virtual mammal provides a simulated behaviour of the mammal to be simulated.

    A device and method for evaluating a performance of a visual equipment for a visual task

    公开(公告)号:AU2020247193A1

    公开(公告)日:2021-09-02

    申请号:AU2020247193

    申请日:2020-03-19

    Applicant: ESSILOR INT

    Abstract: This device (10) for evaluating a performance of a target visual equipment for a visual task comprises: at least one input (12) adapted to obtain data (D(t)) representative as a function of time of measurements of at least one parameter associated with an initial wearer of an initial visual equipment performing the task in a scene, obtain a model (Ms, Mw) of the scene, of a target wearer; at least one processor (14) configured for virtually performing the task with the target equipment by using the scene and target wearer models (Ms, Mw), and by applying the representative data (D(t)) as a function of time to the target wearer model (Mw); determining, on the basis of the virtual performing, at least one parameter of interest (I); providing the same (I), so as to determine to which extent the target equipment is appropriate for the target wearer, by evaluating the performance (P) of the target equipment as a function of the parameter of interest (I).

    SYSTEM SIMULATING A DECISIONAL PROCESS IN A MAMMAL BRAIN ABOUT MOTIONS OF A VISUALLY OBSERVED BODY

    公开(公告)号:CA3148721A1

    公开(公告)日:2021-02-11

    申请号:CA3148721

    申请日:2020-08-03

    Abstract: The invention is a system (1) simulating a decisional process in a mammal brain about characteristics of motions related to body gestures of a visually observed body through a simulated visual path comprising an interface toward simulated neuronal structures, the interface at least converting luminous information of the observed body to an optic flow data stream conveying information related to the visually observed body and that can be processed in the simulated neuronal structures, the system being a feed-forward system and comprising hierarchically from the visual observation to the decision : the simulated visual path and its interface (3, 3L, 3R), a simulated local motion direction detection neuronal structure (4, 4L, 4R) for the detection of motion directions with receptive fields, a simulated opponent motions detection neuronal structure (5, 5L, 5R) for the detection of opponent motions related to at least expansion and contraction, a simulated complex patterns detection neuronal structure (6, 6L, 6R) for the detection of optic flow patterns globally on the whole visual observation and according to the evolution during time of the whole visual observation, the detectable patterns being prototypical patterns, and a simulated motion pattern detection neuronal structure (7, 7LR) for the detection of motion patterns providing decisions about the characteristics of motions. According to the invention, the neurons of the simulated motion pattern detection neuronal structure (7, 7LR) comprise a disremembering capability that is a function of a delay and that is function, for each neuron, of the activity of said neuron.

    METHOD FOR DETERMINING AN OPHTHALMIC LENS ADAPTED TO A LOCOMOTION PARAMETER

    公开(公告)号:CA3012278A1

    公开(公告)日:2017-09-21

    申请号:CA3012278

    申请日:2017-03-09

    Applicant: ESSILOR INT

    Abstract: A method for determining an ophthalmic lens adapted to a wearer, the method comprising: - a wearer data providing step, during which wearer data comprising at least an indication of the prescription of the wearer are provided, - a locomotion scenario providing step during which a locomotion scenario is provided, the locomotion scenario comprising at least an input locomotion parameter and visual environment data indicative of a visual environment, the locomotion parameter comprising at least movement data indicative of at least a translation movements of the head of the wearer upon movement in a visual environment, - an output parameter providing step during which a target value of an output parameter is provided, the output parameter being a locomotion parameter of the wearer or an optical parameter of the ophthalmic lens having an impact on a locomotion parameter of the wearer, - an ophthalmic lens determining step, during which an ophthalmic lens adapted to the wearer is determined based at least on the wearer data so as to have the output parameter as close as possible to the target value of the output parameter when carrying out the locomotion scenario using the ophthalmic lens, wherein the output parameter is the retinal flow of the wearer when carrying out the locomotion scenario using the ophthalmic lens.

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