Camera calibration with lenticular arrays
AssigneesIan Schillebeeckx, Robert Pless
InventorsIan Schillebeeckx, Robert Pless
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to an approach to solve camera calibration from a single picture of a simply structured light field created by viewing a carefully designed lenticular sheet. The lenticular sheet has different colors visible at different relative orientations and gives linear constraints on the K-1?R matrix which can be decomposed to give the rotation and calibration. The method uses geometric cues from hue measurements and does not require a correspondence between a point in the image and a point on the calibration pattern.
Claims8
A method of calibrating a camera, the method comprising:
- creating a light field with a lenticular array, the lenticular array comprising at least one sheet, the at least one sheet comprising a plurality of colors;
- and,
- using a single picture of the light field to calibrate the camera, wherein the camera is calibrated without information from a correspondence between a point on an image and a point on a calibration object.
A method of calibrating a camera for an augmented reality application, the method comprising:
- using a calibration object to create a color-coded light field, wherein the calibration object is based on at least one lenticular array, each lenticular array comprising at least one sheet, the at least one sheet comprising a plurality of colors;
- estimating a focal length of the camera and a relative orientation and position of the object from a single image;
- and,
- calibrating the camera, wherein the camera is calibrated without information from a correspondence between a point on an image and a point on a calibration object.
Dependencies are inferred from the claim text.