| Calibration object | Mean absolute error | Standard deviation | Maximum error |
---|
Krahnstoever [10] | Walking human | 5.80 % | N/A | N/A |
Lee [19] | Cubix box or line | N/A | N/A | 5.50 % |
Gallagher [20] | Grid pattern | N/A | 2.67 cm | 3.28 cm |
Jeges [21] | Grid pattern | 2.03 cm | 4.17 cm | N/A |
Proposed | Walking human | 1.39 cm | 1.91 cm | 7.93 cm |
 |  | (0.80 %) | (1.1 %) | (4.5 %) |