True Multi-Image Alignment and its Application to Mosaicing and Lens Distortion Correction (1997)
| Citations: | 97 - 1 self |
BibTeX
@MISC{Sawhney97truemulti-image,
author = {Harpreet Sawhney and Rakesh Kumar},
title = {True Multi-Image Alignment and its Application to Mosaicing and Lens Distortion Correction},
year = {1997}
}
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Abstract
Multiple images of a scene are related through 2D#3D view transformations and linear and non-linear camera transformations. In the traditional techniques to compute these transformations, especially the ones relying on direct intensity gradients, one image and its coordinate system have been assumed to be ideal and distortion free. In this paper, we present an algorithm for true multiimage alignment that does not rely on the measurements of a reference image being distortion free. The algorithm is developed to speci#cally align and mosaic images using parametric transformations in the presence of lens distortion. When lens distortion is present none of the images can be assumed to be ideal. In our formulation, all the images are modeled as intensity measurements represented in their respective coordinate systems, each of which is related to an ideal coordinate system through an interior camera transformation and an exterior view transformation. The goal of the accompanying algorithm is...
