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Summary: To appear in the ACM SIGGRAPH conference proceedings
Optimizing Content-Preserving Projections for Wide-Angle Images
Robert Carroll
University of California, Berkeley
Maneesh Agrawala
University of California, Berkeley
Aseem Agarwala
Adobe Systems, Inc.
Perspective Mercator Stereographic Our Result
Figure 1: Wide-angle photographs can appear badly distorted under existing projections, such as the perspective, Mercator and stereo-
graphic projections. Perspective projection preserves linear structures in the scene, but distorts shapes of objects. Mercator and stereographic
projections preserve shapes locally, but bend linear structures. Our projection is designed to both preserve local shape and maintain straight
scene lines that are marked by the user with our interactive tool.
Abstract
Any projection of a 3D scene into a wide-angle image unavoidably
results in distortion. Current projection methods either bend straight
lines in the scene, or locally distort the shapes of scene objects.
We present a method that minimizes this distortion by adapting the
projection to content in the scene, such as salient scene regions and
lines, in order to preserve their shape. Our optimization technique
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