Method and device for recognising distance in real time
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorRoland Pelisson
Life of this patent
Estimating the term…
Abstract
A device for recognizing distance in real time includes first, second, and cameras. The third camera arranged nearer the first camera than the second camera. The first, second and third cameras acquire simultaneously first, second and third images, respectively, and an electronic circuit of the device estimates the distance of an object as a function of a stereoscopic correspondence established between first and second elements representative of the object. The first and second elements belong to the first and second images, respectively. The stereoscopic correspondence is established by a relationship between the first elements and corresponding third elements belonging to the third image.
Claims15
A device for recognizing distance in real time, comprising:
- first and second cameras,
- a third camera arranged nearer the first camera than the second camera, the gap between the first camera and the third camera being smaller or equal to one fifth of that between the first camera and the second camera, said first, second and third cameras being collinearly arranged and being configured to acquire simultaneously first, second and third images respectively, and
- an electronic circuit configured to estimate a distance of an object as a function of a stereoscopic correspondence established between first and second elements representative of said object and belonging to the first and second images respectively, said stereoscopic correspondence being established by composing a first application between the first elements and corresponding third elements belonging to the third image and a second application between the third elements and the corresponding second elements, the results of the first application are used as arguments for the second application, the first, second and third elements including at least one of contours, image segments, and rectangular image sub-zones.
A method for recognizing distance in real time, comprising:
- using first and second cameras,
- using a third camera situated nearer the first camera than the second camera, the gap between the first camera and the third camera being smaller or equal to one fifth of that between the first camera and the second camera, said first, second and third cameras being collinearly arranged and being configured to acquire simultaneously first, second and third images respectively, and
- estimating a distance of an object as a function of a stereoscopic correspondence established between first and second elements representative of said object and belonging to the first and second images respectively, said stereoscopic correspondence being established by composing a first application between the first elements and corresponding third elements belonging to the third image and a second application between the third elements and the corresponding second elements, the results of the first application are used as arguments for the second application, the first, second and third elements including at least one of contours, image segments, and rectangular image sub-zones.
Dependencies are inferred from the claim text.