Figure 7.

The image plane was tilted and the camera height was 0.87 m. The location of the picture is the front of the No. 8 student dormitory building at Beijing Jiaotong University [37]. The inset in Figure 7 shows size constancy of visual perception, in this inset there is only one vanishing point “s”. Obviously, the size of a, b, c, d are almost proportionately reduced, which reflects linear property of size constancy, and from this linear property we can calculate depth distances of these trees in the Figure 7.

Songnian et al. BMC Neuroscience 2014 15:50   doi:10.1186/1471-2202-15-50
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