Using Hampel Identifier to Eliminate Profile-Isolated Outliers in Laser Vision Measurement

Table 1

The fitting ellipse parameters for two profiles.

No.
Data	Original data	After removing the outliers	Original data	After removing the outliers
Center coordinates	(-2.2215,71.2 383)	(-3.0093, 64.8192)	(-1.6969, 71.6383)	(-3.0442, 64.2508)
Major axis (mm)	13.1582	19.8214	12.6132	20.2996
Minor axis (mm)	6.3318	19.2567	4.8751	19.7649
Eccentricity	0.8766	0.237	0.9223	0.228