A previous method of obtaining scale-invariance detection with white-light illumination has been improved on. We were able to detect different scaled versions of the target up to a magnification factor equal to 2. We simultaneously detected several versions in the same scene, because each scale factor is codified in a different wavelength. Experimental results demonstrate the proposed technique and show the utility of the method.
© 2000 Optical Society of America
José J. Esteve-Taboada, Javier García, and Carlos Ferreira, "Extended Scale-Invariant Pattern Recognition with White-Light Illumination," Appl. Opt. 39, 1268-1271 (2000)