红外技术能有效地检测电力设备过热缺陷,具有远距离、不接触、不取样、准确、快速、直观等特点。传统的电力设备故障红外人工诊断耗时、耗力,而针对人工诊断不足提出的智能诊断其难点之一在于能否较好的获得感兴趣区域(ROI,Region of in...红外技术能有效地检测电力设备过热缺陷,具有远距离、不接触、不取样、准确、快速、直观等特点。传统的电力设备故障红外人工诊断耗时、耗力,而针对人工诊断不足提出的智能诊断其难点之一在于能否较好的获得感兴趣区域(ROI,Region of interest)。红外图像具有强度集中、对比度低等性质,常用的分割算法用于电力设备红外图像ROI获取,其结果往往是过分割。针对过分割难点,本文提出一种基于FAs T-Match算法的电力设备红外图像分割方法。首先,运用FAs T-Match算法在可见光图像中近似模板匹配,然后在红外与可见光图像之间通过近似仿射变换找到目标在红外图像中的近似区域,最后用分割算法对近似区域分割。实验结果表明,提出的方法能够较好地解决电力设备红外图像过分割问题。展开更多
This article proposes a novel method to fuse infrared and visible light images based on region segmentation. Region segmen-tation is used to determine important regions and background information in the input image. T...This article proposes a novel method to fuse infrared and visible light images based on region segmentation. Region segmen-tation is used to determine important regions and background information in the input image. The non-subsampled contourlet transform (NSCT) provides a flexible multiresolution,local and directional image expansion,and also a sparse representation for two-dimensional (2-D) piecewise smooth signal building images,and then different fusion rules are applied to fuse the NSCT coefficients fo...展开更多
文摘红外技术能有效地检测电力设备过热缺陷,具有远距离、不接触、不取样、准确、快速、直观等特点。传统的电力设备故障红外人工诊断耗时、耗力,而针对人工诊断不足提出的智能诊断其难点之一在于能否较好的获得感兴趣区域(ROI,Region of interest)。红外图像具有强度集中、对比度低等性质,常用的分割算法用于电力设备红外图像ROI获取,其结果往往是过分割。针对过分割难点,本文提出一种基于FAs T-Match算法的电力设备红外图像分割方法。首先,运用FAs T-Match算法在可见光图像中近似模板匹配,然后在红外与可见光图像之间通过近似仿射变换找到目标在红外图像中的近似区域,最后用分割算法对近似区域分割。实验结果表明,提出的方法能够较好地解决电力设备红外图像过分割问题。
基金National Natural Science Foundation of China (60802084)
文摘This article proposes a novel method to fuse infrared and visible light images based on region segmentation. Region segmen-tation is used to determine important regions and background information in the input image. The non-subsampled contourlet transform (NSCT) provides a flexible multiresolution,local and directional image expansion,and also a sparse representation for two-dimensional (2-D) piecewise smooth signal building images,and then different fusion rules are applied to fuse the NSCT coefficients fo...
