A Biologically Inspired Approach for Robot Depth Estimation

Table 1

Quantitative comparison (average and standard deviation of the absolute errors in pixels) in disparity estimation between different band-pass representations on Middlebury images [49].

	Venus		Sawtooth		Tsukuba
	Avg.	Std. dev.	Avg.	Std. dev.	Avg.	Std. dev.
Gabor	0.25	0.77	0.41	1.26	0.32	0.61
s4	0.40	1.30	0.50	1.86	0.36	0.68
s2	0.98	2.44	1.12	2.50	0.47	0.79
SQF	0.95	2.40	0.93	2.20	0.46	0.85
PBBDE 2D shift	0.04	0.74	0.57	1.08	0.12	0.67