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Applied Optics

Applied Optics


  • Vol. 36, Iss. 31 — Nov. 1, 1997
  • pp: 8275–8285

Reflective surfaces for panoramic imaging

J. S. Chahl and M. V. Srinivasan  »View Author Affiliations

Applied Optics, Vol. 36, Issue 31, pp. 8275-8285 (1997)

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A family of reflective surfaces is presented that, when imaged by a camera, can capture a global view of the visual environment. By using these surfaces in conjunction with conventional imaging devices, it is possible to produce fields of view in excess of 180° that are not affected by the distortions and aberrations found in refractive wide-angle imaging devices. By solving a differential equation expressing the camera viewing angle as a function of the angle of incidence on a reflective surface, a family of appropriate surfaces has been derived. The surfaces preserve a linear relationship between the angle of incidence of light onto the surface and the angle of reflection onto the imaging device, as does a normal mirror. However, the gradient of this linear relationship can be varied as desired to produce a larger or smaller field of view. The resulting family of surfaces has a number of applications in surveillance and machine vision.

© 1997 Optical Society of America

Original Manuscript: March 18, 1997
Revised Manuscript: May 12, 1997
Published: November 1, 1997

J. S. Chahl and M. V. Srinivasan, "Reflective surfaces for panoramic imaging," Appl. Opt. 36, 8275-8285 (1997)

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