Natural scene statistics predict how humans pool information across space in surface tilt estimation
Fig 3
Human tilt estimation experiment.
A Human observers binocularly viewed real-world scenes through a circular aperture with a 3ยบ diameter that was positioned stereoscopically in front of the scene. B Example of stimuli. Left-eye, right-eye, and left-eye images (for both uncrossed and crossed fusion). The patches are surrounded by a graphical probe (white circle and three tick marks). Observers rotated the probe to align the middle tick mark with the perceived tilt direction for the surface at the very center of the window; note that when the middle tick mark is aligned with the perceived tilt direction, the other two tick marks are aligned with the perceived slant axis.