[IPOL announce] new article: Improvements of the Inverse Compositional Algorithm for Parametric Motion Estimation

[announcements about the IPOL journal]

A new article is available in IPOL: http://www.ipol.im/pub/art/2018/222/

Thibaud Briand, Gabriele Facciolo, and Javier Sánchez,
Improvements of the Inverse Compositional Algorithm for Parametric 
Motion Estimation,
Image Processing On Line, 8 (2018), pp. 435–464.
https://doi.org/10.5201/ipol.2018.222


Abstract
In this work, we propose several improvements of the inverse 
compositional algorithm for parametric registration. We propose an 
improved handling of boundary pixels, a different color handling and 
gradient estimation, and the possibility to skip scales in the 
multiscale coarse-to-fine scheme. In an experimental part, we analyze 
the influence of the modifications. The estimation accuracy is at least 
improved by a factor 1.3 while the computation time is at least reduced 
by a factor 2.2 for color images.