Fig. 9From: Localizing hot spots in Poisson radiation data matrices: nonnegative tensor factorization and phase congruencyPhase congruency in data tensor \({\mathbf{D }}\) with apparent motion of \(H_2\) at frame 10 (mode-3 index 10). a, c Scatter plots along mode-3. b 3-level contour plot with dotted-line arrow in direction of motionBack to article page