A Nonlocal Method with Modified Initial Cost and Multiple Weight for Stereo Matching

Figure 7

Parameter sensitivity analysis of our experiments. Four standard datasets (Tsukuba, Venus, Teddy, and Cones) were used in this experiment. (a) is a line chart representing the percentage of error pixels as parameter increases from 0.02 to 0.22, whereas (b) is a line chart representing the changes as parameter increases from 0 to 1. Avg denotes the average percentage of erroneous pixels for three evaluation regions (nonocc, all, and disc), and All denotes the four standard datasets. (c) represents the average number of erroneous pixels from the four standard datasets using different weights for the initial components; an exponential function is employed to make the results more intuitive; denotes the weight of color cost and denotes the weight of the vertical gradient cost.

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