TY - GEN
T1 - A self-adaptive nonuniformity correction algorithm for infrared images combined with two-point correction along the rim
AU - Liu, Chongliang
AU - Jin, Weiqi
AU - Chen, Yan
AU - Liu, Bin
AU - Cao, Yang
AU - Liu, Xiu
PY - 2010
Y1 - 2010
N2 - Nonuniformity correction plays an important role in improving image quality of the infrared focal plane array. A self-adaptive nonuniformity correction algorithm for infrared images combined with two-point correction along the rim is proposed in this paper. With the help of perimeter blackbody in low and high temperature, two-point correction is executed initially to perimeter detectors. Then based on the scene information and shift between adjacent frames, a special algebraic algorithm is proposed to transport correction parameters from perimeter detectors to those interior uncorrected ones. In this way, the correction parameters of the whole field of view (FOV) are calculated. All calculations are algebraic, with a low computation load. This algorithm can realize adaptive two-point correction without covering the central FOV rapidly. It proves to get a satisfying correction effect after being tested by using real infrared images.
AB - Nonuniformity correction plays an important role in improving image quality of the infrared focal plane array. A self-adaptive nonuniformity correction algorithm for infrared images combined with two-point correction along the rim is proposed in this paper. With the help of perimeter blackbody in low and high temperature, two-point correction is executed initially to perimeter detectors. Then based on the scene information and shift between adjacent frames, a special algebraic algorithm is proposed to transport correction parameters from perimeter detectors to those interior uncorrected ones. In this way, the correction parameters of the whole field of view (FOV) are calculated. All calculations are algebraic, with a low computation load. This algorithm can realize adaptive two-point correction without covering the central FOV rapidly. It proves to get a satisfying correction effect after being tested by using real infrared images.
KW - Infrared focal plane array
KW - Nonuniformity correction
KW - Perimeter blackbody
KW - Scene-based
UR - http://www.scopus.com/inward/record.url?scp=79851496076&partnerID=8YFLogxK
U2 - 10.1109/COMPSYM.2010.5685510
DO - 10.1109/COMPSYM.2010.5685510
M3 - Conference contribution
AN - SCOPUS:79851496076
SN - 9781424476404
T3 - ICS 2010 - International Computer Symposium
SP - 240
EP - 245
BT - ICS 2010 - International Computer Symposium
T2 - 2010 International Computer Symposium, ICS 2010
Y2 - 16 December 2010 through 18 December 2010
ER -