Abstract
We introduce a novel hybrid camera configuration composed by a fisheye camera attached to an RGB-D system. Current RGB-D sensors provide the 3D information and scale of the scene, but they are limited by a small field of view. In contrast, wide field of view cameras capture a larger portion of the scene, but providing highly distorted images that require specific algorithms. By coupling a fisheye camera to an RGB-D system we take advantage of both types of cameras overcoming their drawbacks. The system provides a portion of the fisheye image with depth data and we use this seed information to perform scaled operations in the complete image. We also present a calibration procedure of the system to map depth information to the wide angle image. With this purpose, we propose a depth-fisheye calibration algorithm nurturing from state of the art camera models and methods. Several experiments test the accuracy of the system with real images.
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