Minimal Solutions for Panoramic Stitching

This paper presents minimal solutions for the geometric parameters of a camera rotating about its optical centre. In particular we present new 2 and 3 point solutions for the homography induced by a rotation with 1 and 2 unknown focal length parameters. Using tests on real data, we show that these algorithms outperform the standard 4 point linear homography solution in terms of accuracy of focal length estimation and image based projection errors.

• Type: Conference
• Year: 2007
• Where: CVPR
• Authors: Matthew Brown, Richard I. Hartley, David Nistér
• Keywords: Computer Vision, CVPR 2007, Focal Length, Focal Length Estimation, Focal Length Parameters