Dynamic Hybrid Filter for Vision-Based Pose Estimation of a Hexa Parallel Robot

Table 4

The summary of the mean absolute error in some pose estimation methods.

Ref	Method	Robot	Mean absolute error
			(mm)	(mm)	(mm)	(degrees)	(degrees)	(degrees)
[12]	Sensor frame, reflectors	6-RSS parallel robot	0.319	0.393	0.360	0.086	0.074	0.043
[19]	Vision-based, AKF	PUMA 560	1.0	1.1	1.5	0.2	0.4	0.4
[20]	C-track 780 vision, AKF	KUKA KR 6-2	0.2	0.2	0.2	0.1	0.1	0.1
[21]	Vision-based, EKF	Delta Parallix LKF-2040	1.79	1.79	1.79	—	—	—
[28]	Vision-based, EKF	Robot arm	0.3	0.3	0.6	0.1	0.4	0.4
[29]	Vision-based, neural network, EKF	Tensegrity manipulator	2.568	2.204	1.663	2. 269	2. 128	2. 054