“…However, we think that the insights on illumination tolerance for different distance measures gained in this paper are an important step to make holistic methods more competitive, at least for the min-warping method investigated here. Moreover, for feature-based methods, a number of studies have been dedicated to the comparative evaluation of different feature detectors and descriptors for different applications [1,2,5,[17][18][19] indicating that there may be no single method suitable for all applications. A systematic study exploring the application of feature-based methods for local visual homing with panoramic images is not yet available, and would also be beyond the scope of this paper.…”