Fig. 7
From: Viewers perceive shape in pictures according to per-fixation perspective

Results from Experiment 2. Left: Participants’ preferences for each of the nine fields-of-view evaluated (see Figure 6). We found a positive correlation between an increased preference for local-linear projections (green) and the increase in FOV (Pearson’s r = 0.94, Spearman’s \(\rho\) = 0.95), suggesting that as FoV increases (i.e., distortion becomes more evident), viewers’ tend too better prefer the local-linear condition. Right: Participants’ rating (1-5 Likert scale) of the distortion of the yellow bus for all FOV in both local-linear (green) and globally-consistent (brown) projections. The error bars show the standard error of the mean (SEM). Our results show that people clearly report higher distortion in the images conforming to a single global system, but do not in the local-linear ones. Both results contradict the global-consistency hypothesis and support local-linear theories such as the Direct View Condition (DVC).