An improved spatiogram similarity measure for robust object localisation
Ó Conaire, Ciarán, O'Connor, Noel E.ORCID: 0000-0002-4033-9135 and Smeaton, Alan F.ORCID: 0000-0003-1028-8389
(2007)
An improved spatiogram similarity measure for robust object localisation.
In: ICASSP 2007 - IEEE International Conference on Acoustics, Speech, and Signal Processing, 15-20 March 2007, Honolulu, Hawaii.
Spatiograms were introduced as a generalisation of the commonly used histogram, providing the flexibility of adding spatial context information to the feature distribution information of a histogram. The originally proposed spatiogram comparison measure has significant disadvantages that we detail here. We propose an improved measure based on deriving the Bhattacharyya coefficient for an infinite number of spatial-feature bins. Its advantages over the previous measure and over histogram-based matching are demonstrated in object tracking scenarios.