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Axial Light Field for Curved Mirrors: Reflect Your Perspective, Widen Your View
 

Summary: Axial Light Field for Curved Mirrors:
Reflect Your Perspective, Widen Your View
Yuichi Taguchi, Amit Agrawal, Srikumar Ramalingam, and Ashok Veeraraghavan
Mitsubishi Electric Research Labs (MERL), Cambridge, MA, USA
{taguchi, agrawal, ramalingam, veerarag} at merl.com
Abstract
Mirrors have been used to enable wide field-of-view
(FOV) catadioptric imaging. The mapping between the in-
coming and reflected light rays depends non-linearly on the
mirror shape and has been well-studied using caustics. We
analyze this mapping using two-plane light field parameter-
ization, which provides valuable insight into the geometric
structure of reflected rays. Using this analysis, we study the
problem of generating a single-viewpoint virtual perspec-
tive image for catadioptric systems, which is unachievable
for several common configurations.
Instead of minimizing distortions appearing in a single
image, we propose to capture all the rays required to gen-
erate a virtual perspective by capturing a light field. We
consider rotationally symmetric mirrors and show that a

  

Source: Agrawal, Amit - Mitsubishi Electric Research Labs

 

Collections: Engineering