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We present accurate geometric modeling of the multi-perspective photo captured with a spherical catadioptric imaging system using<jats:italic>axial-cone cameras:<\/jats:italic>multiple perspective cameras lying on an axis each with a different viewpoint and a different cone of rays. This modeling avoids geometric approximations and allows several algorithms developed for perspective cameras to be applied to multi-perspective catadioptric cameras.<\/jats:p><jats:p>We demonstrate axial-cone modeling in the context of rendering wide-angle light fields, captured using a spherical mirror array. We present several applications such as spherical distortion correction, digital refocusing for artistic depth of field effects in wide-angle scenes, and wide-angle dense depth estimation. Our GPU implementation using axial-cone modeling achieves up to three orders of magnitude speed up over ray tracing for these applications.<\/jats:p>","DOI":"10.1145\/1882261.1866194","type":"journal-article","created":{"date-parts":[[2010,12,1]],"date-time":"2010-12-01T20:18:10Z","timestamp":1291234690000},"page":"1-8","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":41,"title":["Axial-cones"],"prefix":"10.1145","volume":"29","author":[{"given":"Yuichi","family":"Taguchi","sequence":"first","affiliation":[{"name":"Mitsubishi Electric Research Labs (MERL)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amit","family":"Agrawal","sequence":"additional","affiliation":[{"name":"Mitsubishi Electric Research Labs (MERL)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ashok","family":"Veeraraghavan","sequence":"additional","affiliation":[{"name":"Mitsubishi Electric Research Labs (MERL)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Srikumar","family":"Ramalingam","sequence":"additional","affiliation":[{"name":"Mitsubishi Electric Research Labs (MERL)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramesh","family":"Raskar","sequence":"additional","affiliation":[{"name":"MIT Media Lab"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2010,12,15]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"crossref","unstructured":"Agrawal A. 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