Nonmetric Correction of Lens Distortion Based on Entropy Measure

Table 2

Analysis data of col-linear points.

Line number	Before correction/pixels			After correction/ pixels
	Max value	Min value	Mean value	Max value	Min value	Mean value
(1)	7.9615	0.3657	4.1767	0.1401	0.0055	0.0592
(2)	6.0414	0.1576	3.1271	0.1100	0.0127	0.0585
(3)	3.8724	0.0987	1.9783	0.1200	0.0064	0.0454
(4)	1.3082	0.0314	0.6584	0.1184	0.0014	0.0470
(5)	1.4839	0.0223	0.7679	0.0525	7.0191 −	0.0203
(6)	4.0687	0.1421	2.1119	0.0375	0.0064	0.0209
(7)	6.3782	0.1817	3.3073	0.0797	4.8226− 4	0.0366
(8)	8.2823	0.3479	4.3206	0.0789	0.0026	0.0319