Application and Analyzation of the Vision-Based Structure Model Displacement Measuring Method in Cassette Structure Shaking Table Experiment

Table 3

Horizontal maximum displacement error and correlation coefficient of each floor under the working condition 20.

21−15			21−14			21−12
Vision method	Laser displacement meter	Deviation	Vision method	Laser displacement meter	Deviation	Vision method	Laser displacement meter	Deviation
150.88	149.28	1.07%	145.69	140.56	3.65%	131.67	126.72	3.91%
−84.13	−82.08	2.50%	−80.72	−76.4	5.65%	−74.69	−71.36	4.67%
−35.85	−33.2	7.99%	−25.52	−24.4	4.60%	−27.62	−27.76	−0.49%
90.14	89.92	0.25%	−34.40	−32.56	5.67%	−34.13	−33.04	3.28%
−72.02	−70.24	2.53%	85.24	82	3.95%	73.17	69.84	4.76%
21.81	21.84	−0.15%	−69.09	−65.84	4.93%	−64.53	−61.52	4.89%
−45.47	−43.68	4.11%	21.21	19.84	6.90%	17.90	16.88	6.05%
54.79	54.72	0.13%	−43.42	−41.76	3.98%	−41.50	−40.32	2.93%
−37.32	−34.96	6.76%	53.82	52.4	2.71%	49.57	48.08	3.10%
76.75	75.12	2.17%	76.03	74.72	1.75%	−30.98	−29.76	4.10%
−70.27	−68.64	2.37%	−67.32	−64.8	3.89%	71.43	70.48	1.34%
107.30	106.08	1.15%	104.56	100.96	3.56%	−64.35	−61.6	4.47%
−40.99	−39.68	3.31%	−39.01	−36.16	7.87%	95.70	92.48	3.48%
33.09	33.68	−1.76%	32.90	30.56	7.65%	−36.09	−34.96	3.24%
21.59	21.76	−0.79%	−25.70	−24.16	6.38%	28.52	26.96	5.79%
−28.12	−27.84	1.02%	21.28	20.24	5.13%	−24.32	−23.36	4.12%
34.62	35.04	−1.20%	−27.70	−26.48	4.60%	17.90	17.2	4.07%
−62.57	−60.32	3.73%	34.17	31.6	8.12%	−27.50	−26.48	3.84%
64.33	63.6	1.15%	−60.57	−58.32	3.86%	30.18	28.96	4.22%
−29.75	−28.88	3.02%	63.97	62.48	2.39%	−58.00	−55.92	3.72%
27.61	27.44	0.60%	−28.45	−26.8	6.16%	59.74	58	3.00%
72.66	71.12	2.17%	27.90	26.72	4.40%	−26.65	−25.68	3.77%
Average deviation		2.27%	Average deviation		4.90%	Average deviation		3.78%
Correlation coefficient		0.99	Correlation coefficient		0.99	Correlation coefficient		0.99