Quantification of the effects of fur, fur color, and velocity on Time-Of-Flight technology in dairy production

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Table 3 Descriptive statistics of pixel-wise added depth value differences (SumDiff) and standard deviation (pwStd) for the fur-covered model recorded in standstill to compare between black and white fur

Criterion	N	SumDiff	pwStd
median “Interior White”	6362	0.003	0.002
median “Interior Black”	1558	0.007	0.006
η ² (p=0.001)		0.472	0.472
max		0.579	0.670
“White”		0.008	0.051
“Black”		0.579	0.670
min		0.002	0.002
“White”		0.002	0.002
“Black”		0.003	0.003
mean		0.007	0.008
“White”		0.003	0.003
“Black”		0.008	0.009

The numbers of pixel belonging to “Interior White” and “Interior Black” are given in column 2. Since the data is skewed, the median is preferable as a measure of center. The means are given for the sake of completeness. The differences in medians of SumDiff and pwStd between “Interior White” and “Interior Black” are significant (p=0.001). Effect sizes η ² are given in row 4.