Experimental performance evaluation of feature grouping modules

We present five performance measures to evaluate grouping modules in the context of constrained search and indexing based object recognition. Using these measures, we demonstrate a sound experimental framework based on statistical ANOVA tests to compare and contrast three edge based organization modules, namely those of A. Etemadi et al. (1991), D.W. Jacobs (1996), and S. Sarkar and K.L. Boyer (1993) in the domain of aerial objects using 50 images. With adapted parameters, the Jacobs module is overall the best choice for constraint based recognition. For fixed parameters, the Sarkar-Boyer module is the best in terms of recognition accuracy and indexing speedup. Etemadi et al.´s module performs equally well with fixed and adapted parameters while the Jacobs module is most sensitive to fixed and adapted parameter choices. The overall performance ranking of the modules is Jacobs, Sakar-Boyer, and Etemadi et al