Synonyms
Catadioptric camera; Fisheye camera; Panoramic camera; Spherical camera; Wide-angle camera
Definition
An omnidirectional camera (from omni, meaning all) is a camera with a 360-degree field of view in the horizontal plane or with a visual field that covers a hemisphere or (approximately) the entire sphere.
Background
Most commercial cameras can be described as pinhole cameras, which are modeled by a perspective projection. However, there are projection systems whose geometry cannot be described using the conventional pinhole model because of the very high distortion introduced by the imaging device. Some of these systems are omnidirectional cameras.
There are several ways to build an omnidirectional camera. Dioptric cameras use a combination of shaped lenses (e.g., fisheye lenses; see Fig. 1a) and can reach...
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Scaramuzza, D. (2014). Omnidirectional Camera. In: Ikeuchi, K. (eds) Computer Vision. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-31439-6_488
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DOI: https://doi.org/10.1007/978-0-387-31439-6_488
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