Visual aid with three-dimensional image acquisition

Details Visual aid with three-dimensional image acquisition Visual aid with three-dimensional image acquisition

A - Human Necessities

61

N

A61N 1/36 (2006.01)

Patent

CA 2672152

The object of providing a device which makes it possible for the natural sight of a partially sighted person to be restored or supported as realistically as possible by means of a visual aid or visual prosthesis is achieved in the case of the visual aid according to the invention by virtue of the fact that over and above the pure acquisition of a two-dimensional image, additional information is included in the image processing. For this purpose, a visual aid system is proposed which, during the reproduction of the processed image, visualizes additional items of information with regard to the spatial position and/or specific attributes of objects in the acquired image which are associated with objects in the acquired image. The present invention thus affords the advantage that a three-dimensional image of the current surroundings of the user can be acquired owing to the fact that the image visualized to the user by the visual aid system according to the invention comprises additional information for example about the relative distance of the objects contained in the image and a depth-selective representation of the acquired image can thus be achieved.

Le problème à la base de l'invention consiste à proposer un dispositif qui permette de rétablir ou d'assister le plus concrètement possible la capacité naturelle de vision d'une personne à vision réduite au moyen d'une assistance à la vision ou d'une prothèse de vision. L'assistance à la vision selon l'invention résout ce problème en ce qu'elle intègre dans le traitement d'image des informations qui complètent la simple saisie d'une image bidimensionnelle. Dans ce but, l'invention propose un système d'assistance à la vision qui, lors de la reproduction de l'image traitée, visualise des informations supplémentaires concernant la position spatiale et/ou certains attributs d'objets présents dans l'image saisie et associées aux objets présents dans l'image saisie. La présente invention offre ainsi l'avantage de permettre de saisir une image tridimensionnelle de l'environnement effectif de l'utilisateur par le fait que l'image présentée à l'utilisateur par le système d'assistance à la vision selon l'invention contient des informations supplémentaires, par exemple sur la distance relative entre les objets que contient l'image, et de permettre d'obtenir une représentation de l'image saisie qui tient compte de la profondeur.

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