27 October 2006 Uncooled thermal imaging and image analysis
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Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470L (2006); doi: 10.1117/12.710657
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China
Abstract
Thermal imager can transfer difference of temperature to difference of electric signal level, so can be application to medical treatment such as estimation of blood flow speed and vessel 1ocation[1], assess pain[2] and so on. With the technology of un-cooled focal plane array (UFPA) is grown up more and more, some simple medical function can be completed with un-cooled thermal imager, for example, quick warning for fever heat with SARS. It is required that performance of imaging is stabilization and spatial and temperature resolution is high enough. In all performance parameters, noise equivalent temperature difference (NETD) is often used as the criterion of universal performance. 320 x 240 α-Si micro-bolometer UFPA has been applied widely presently for its steady performance and sensitive responsibility. In this paper, NETD of UFPA and the relation between NETD and temperature are researched. several vital parameters that can affect NETD are listed and an universal formula is presented. Last, the images from the kind of thermal imager are analyzed based on the purpose of detection persons with fever heat. An applied thermal image intensification method is introduced.
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Shiyun Wang, Benkang Chang, Chunyu Yu, Junju Zhang, Lianjun Sun, "Uncooled thermal imaging and image analysis", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470L (27 October 2006); doi: 10.1117/12.710657; https://doi.org/10.1117/12.710657
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KEYWORDS
Thermography

Sensors

Image analysis

Imaging systems

Spatial resolution

Staring arrays

Image processing

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