%0 Journal Article
%T Elimination of Thermal Halo Background in Infrared Image Sequences by FPGA<br>基于FPGA的红外序列图像中热晕背景的消除
%A LIU Xiaofang PENG Xianrong CAI Jingju
%A <br>刘小芳
%A 彭先蓉
%A 蔡敬菊
%J 红外
%D 2004
%I 
%X When an IR CCD (Infrared Charge Coupled Device) is directly illuminated by the sun or works for a long time, the thermal halo background in the infrared image sequences can be observed. The luminance and contrast of the image obtained by the IR CCD are generally low, so the influence of the thermal halo background on the IR image is serious. In order to eliminate the influence of the thermal halo, a method of real-time IR image background compensation by using the digital image processing means - subtraction, reversed addition is submitted. Then, a hardware designed on the basis of those methods is used to implement in the FPGA (field programmable gate array) in real time. The experimental result has indicated that the image's quality can be improved by the thermal halo background compensation.
%K FPGA
%K thermal halo
%K background compensation
%K reversed addition
%K IR CCD<br>现场可编程门阵列
%K 热晕
%K 背景补偿
%K 更色相加
%K 红外探测器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=3723000AE493FCE650601982177048B1&aid=A415AAA28CF1C568&yid=D0E58B75BFD8E51C&iid=94C357A881DFC066&sid=F3090AE9B60B7ED1&eid=FC0714F8D2EB605D&journal_id=1672-8785&journal_name=红外&referenced_num=0&reference_num=3