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

Table 2

Horizontal maximum displacement error and correlation coefficient of each floor under the working condition 21.

21–15			21–14			21–12
Vision method	Laser displacement meter	Deviation	Vision method	Laser displacement meter	Deviation	Vision method	Laser displacement meter	Deviation
194.18	195.68	−0.77%	185.56	182.32	1.78%	168.13	164.24	2.37%
−103.62	−96.24	7.67%	−101.68	−93.92	8.26%	−96.81	−90.24	7.28%
93.11	94.96	−1.95%	88.00	88	0.00%	77.57	77.28	0.37%
−91.52	−85.44	7.11%	−89.68	−81.6	9.90%	−82.60	−75.52	9.37%
57.07	59.52	−4.12%	55.01	58.72	−6.32%	52.64	55.12	−4.51%
−62.84	−58.32	7.75%	88.28	89.28	−1.12%	81.55	81.84	−0.35%
90.92	92.8	−2.03%	119.82	120.8	−0.81%	114.08	114.64	−0.49%
122.95	124	−0.84%	−102.62	−93.92	9.26%	−95.40	−87.92	8.51%
−105.60	−98.08	7.67%	156.71	155.44	0.82%	145.15	143.04	1.47%
162.78	162.88	−0.06%	51.29	54.48	−5.85%	47.14	48.64	−3.08%
54.32	57.2	−5.04%	44.10	46.24	−4.63%	39.45	41.2	−4.26%
45.97	49.12	−6.41%	32.68	34.96	−6.53%	27.74	29.76	−6.80%
−53.12	−48.56	9.40%	114.69	115.36	−0.58%	106.97	107.04	−0.06%
118.99	120.72	−1.43%	85.94	87.92	−2.25%	80.04	80.48	−0.55%
−65.27	−60	8.79%	69.05	72.32	−4.52%	65.13	66.88	−2.62%
89.56	91.6	−2.23%	88.72	90.32	−1.77%	85.93	87.52	−1.82%
70.16	72.4	−3.09%	72.89	75.92	−3.99%	72.20	74.64	−3.27%
89.42	91.12	−1.87%	97.48	99.6	−2.13%	95.48	97.28	−1.85%
74.25	74.8	−0.73%	90.31	92.88	−2.77%	89.48	91.44	−2.14%
99.00	100.16	−1.16%	94.29	95.92	−1.70%	92.54	94.48	−2.05%
Average deviation		4.01%	Average deviation		3.75%	Average deviation		3.16%
Correlation coefficient		0.99	Correlation coefficient		0.99	Correlation coefficient		0.99