High dynamic range photography without a tripod: A linear formulation for image fusion

Abstract

Purpose

The purpose of this paper is to present a new multi-image registration methodology that is able to align a set of hand-held bracketed shots.

Design/methodology/approach

The procedure is a two-step algorithm where corresponding multi-image points are automatically extracted from the bracketed image sequence and a least squares adjustment recovers transformation parameters.

Findings

The images can be processed with high dynamic range algorithms to combine multiple low dynamic range pictures into a single mosaic with a superior radiometric quality.

Originality/value

Simulated and real examples are illustrated to prove the effectiveness of the developed affine-based procedure.

Citation

Barazzetti, L. (2014), "High dynamic range photography without a tripod: A linear formulation for image fusion", International Journal of Pervasive Computing and Communications, Vol. 10 No. 2, pp. 140-152. https://doi.org/10.1108/IJPCC-03-2014-0025