[Retracted] Image-Based Precision Measurement Technology for the Quality Inspection of Crane Boom Materials

Table 4

Parameter evaluation result.

Parameter evaluation	R	F	df1	df2	Significance	Constant	B1
Linear	0.951	565.143	1	10	0	−0.131	0.021
Logarithm	0.914	109.477	1	10	0	−1.162	0.312
Index model	0.896	99.12	1	10	0	0.029	0.061