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AssigneePhotonic Sensors & Algorithms, S.L.
InventorsJorge Vicente Blasco Claret, Carles Montoliu Alvaro, Arnau Calatayud Calatayud, Leticia Carrion, Adolfo Martinez Uso
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A device and method for obtaining depth information from a light field is provided. The method generating a plurality of epipolar images from a light field captured by a light field acquisition device; an edge detection step for detecting, in the epipolar images, edges of objects in the scene captured by the light field acquisition device; for each epipolar image, detecting valid epipolar lines formed by a set of edges; and determining the slopes of the valid epipolar lines. In a preferred embodiment, the method extend the epipolar images with additional information of images captured by additional image acquisition devices and obtain extended epipolar lines. The edge detection step calculates a second spatial derivative for each pixel of the epipolar images and detects the zero-crossings of the second spatial derivatives.
A method for obtaining depth information from a light field, comprising:
The method of 1, wherein the additional information comprises edge pixels contained in images captured by at least one conventional camera, wherein said edge pixels correspond to the object edge represented by the epipolar line.
The method of 1, further comprising obtaining all-in-focus images from a multi-view system comprising the light field acquisition device and at least one conventional camera;
Dependencies are inferred from the claim text.