Column Distance Measures and their Effect on Illumination Tolerance in MinWarping
نویسنده
چکیده
MinWarping, a holistic local visual homing method, compares image columns pixel-wise. The distance measures used in this comparison strongly affect the tolerance of MinWarping to changes in illumination. Based on six indoor databases, each in a day and a night version, we compare four difference distances measures with respect to their navigation performance under changes in illumination. An average between the “normalized sum of absolute differences” (NSAD) and the “normalized sum of absolute differences of absolute values” (NSADA) exhibits the best illumination tolerance.
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