Xidian University

Kun Qian

Huan Li

Jun Zhou

Xiuping Jia

Dong Zhao

Jiangluqi Song

Bingjian Wang

Bo Yao

Huixin Zhou

Hanlin Qin

Yue Yu

Runda Qian

Kuanhong Cheng

Yangqun Jin

Shenghui Rong

A non-uniformity correction method for an infrared image based on guided and high-pass filtering includes: assigning high-frequency component of first image frame of original image sequence to first fixed pattern noise f; successively loading N-th image frame of the original image sequence with non-uniformity as current image frame, determining a difference between the current image frame and (N&#x2212;1)-th image frame to obtain (N&#x2212;1)-th differential image frame, and obtaining a relative change amplitude of each image element of (N&#x2212;1)-th image frame according to the (N&#x2212;1)-th differential image frame; and performing high-pass filtering based on a combination of a high-frequency component of the current image frame obtained through guided filtering and the relative change amplitude to obtain n-th fixed pattern noise f, and performing non-uniformity correction on the current image frame according to fto obtain a correction result of the current image frame, where N&#x2265;2, n&#x2265;2.

Non-uniformity correction method for infrared image based on guided filtering and high-pass filtering

Growing community of inventors

Shaanxi, China

Kun Qian