Thermal Image Fusion Benefit

One benefit of thermal image fusion in building diagnosties is the ability to pinpoint the location of thermal anomalies on visibly featureless targets. One such example is illustrated in Fig. 8.6. Blending the visible and thermal images of an interior wall surface allows the thermographer to locate an insulation void (blue area) with precision. 

Also shown is the picture-in-picture feature available on some of the new IR cameras. The left-hand image is IR only, the center image is visible only, and the right-hand image is a 50% blend of the two images. A visible mark on the floor is used as an orientation point. 

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Illustrations of the benefits of thermal image fusion are provided in later chapters in the form of application examples. 

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