Xiaoyi Jiang, Joachim Hornegger, Reinhard Koch (eds.), Pattern Recognition, Springer International Publishing, 2014.
36th German Conference, GCPR 2014, Münster, Germany, May 2 - 9, 2014
Today's surface appearance measures often ignore the inherent two- dimensionality. This paper proposes a method to acquire and assess the appearance of larger specular surfaces in 2D. First, we describe a deflectometric setup to obtain a gradient field of the surface microstructure. Hence, we propose an areal measure based on the angular power spectrum, as defined in ISO 25178, to characterize the waviness of coated surfaces in relevant scales. To verify the validity of this measure, we compare it with an 1D ...