Institut National D'optique

Suzie Dufour

Pascal Deladurantaye

Pascal Gallant

Pierre Galarneau

Ozzy Mermut

André Fougeres

Robert B Brown

The method can include acquiring response data including a digital representation of an actual physiological reflex response of a user to exposure to a stimuli sequence associated to the user ID, the stimuli sequence including personal images and generic images; providing response template data associated to the user ID, the response template data including a digital representation of a baseline physiological reflex response of a user corresponding to the user ID to exposure to the stimuli sequence; computing a normalization parameter based on a comparison between the response data associated to the generic images and the response template data associated to the generic images, and comparing the response data associated to the personal images to the response template data associated to the personal images, including factoring out a noise component based on the normalization parameter.

Computer-implemented method of performing a comparison between an actual response to image stimuli and a response template

Methods and systems enabling the real-time monitoring of a light-induced procedure in a biological medium, and/or the acquisition of information related to this biological medium are provided. In some implementations, the light beam used for the procedure is modulated at a modulation frequency selected in view of the photoacoustic frequency response associated with the procedure. The photoacoustic feedback signal from the medium during the procedure is then monitored. This monitoring may involve filtering the photoacoustic feedback signal around the selected feedback modulation frequency. Ratiometric comparisons of the contribution of different frequencies to the photoacoustic feedback signal are also considered.

Light modulation for improved photoacoustic feedback on light-induced treatments and procedures

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Québec, Canada

Suzie Dufour