滤波背景热补偿(BTCF)用于红外热成像评价

A. Restrepo-Girón, H. Loaiza-Correa
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引用次数: 3

摘要

提出了一种新的对比度增强技术,用于主动热成像检测,该技术基于中值滤波的抽取版本来解耦缺陷区域的背景热信息,而不依赖于任何热传播模型或健康区域的先验选择。碳纤维增强塑料(CFRP)板的检测结果表明,BTCF可以减少70%的残余非均匀性加热,并且在截断负对比值后,信噪比可比原始序列提高11dB。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Background thermal compensation by filtering (BTCF) for infrared thermography evaluation
A new contrast enhancement technique is presented for application in active thermography inspection, based on a decimated version of median filtering to decouple the background thermal information from defective areas, without depending on any heat propagation model or the a priori selection of a healthy region. Results over inspected carbon fiber reinforced plastic (CFRP) slabs show that BTCF can reduce in 70% the residuary non-uniformity heating, and after truncation of negative contrast values, it can be obtained an improvement up to 11dB in SNR with respect to original sequences.
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