Abstract

Research on LWIR multispectral imaging detection technology carried out in the key national defense laboratory in Tianjin University is introduced in this paper. Firstly, a kind of infrared multispectral image simulation method based on multispectral or hyperspectral images data in the VIS/NIR band is recommended. The combined strategy of unsupervised and supervised classification methods is put forward to efficiently realize auto-matching and labeling of pixels. Then, using the infrared image simulation technology, infrared multispectral simulation images can be generated highly similar to real natural environments, which are valuable to the development of LWIR multispectral spectrometers, as well as research on multispectral detection algorithms. Secondly, the co-image plane imaging detection technique is presented as well as the attempt to make the small LWIR multispectral imaging detector based on such concept. A fourband prototype has been achieved in VIS/NIR band, verifying the feasibility and validity of this technique.

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