SENSORS SST: Novel Hyperspectral Imaging Sensor with Spectral Zooming Feature

传感器 SST：具有光谱缩放功能的新型高光谱成像传感器

• 批准号: 0428644
• 负责人: Michael Wang
• 金额: $ 25万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0428644&HistoricalAwards=false
• 关键词: SENSORS; SST; Novel; Hyperspectral; Imaging

Hyperspectral imaging sensor acquires and analyzes 3-D data consisting of 1-D spectral and 2-D spatial image information. It offers more accurate information extraction than possible with conventional imaging technique. Especially in infrared spectral band, hyperspectral imaging sensor can be used for materials identification, chemical and biological agents identification, military target/decoy discrimination identification and tracking, intelligent missile seeking, space weather sensing, remote monitoring of pollution sites, etc. Existing hyperspectral imaging devices use fixed spectral band and are too slow to analyze large amount of 3-D data and thus cannot meet real-time application requirements. We propose to develop a novel hyperspectral imaging sensor with spectral zooming feature. Using a special fiber bundle, we can expand the spatial domain and allow the dispersion of spectral information to be acquired simultaneously by the imaging camera. Thus, the 1-D spectral and 2-D spatial image information can be acquired at the same time without the need for sequential acquisition as commonly done by existing spectral imaging devices. It is preferred that the hyperspectral imaging sensor can offer wide spectral band for searching target of interest that emit certain spectral information. It is also preferred that it can offer high spectral resolution. Using limited spectral pixels, the spectral information can still cover wide spectral band (spectral course view) and narrow spectral band (spectral fine view) through the spectral zooming feature. The device is capable of contour mapping of designated spectral ranges for pin pointing specific target area and capable of rapid processing spectral image data. The successful development of hyperspectral imaging sensor along with high sensitive sol gel film has significant scientific and engineering value since the hyperspectral imaging is of vital importance to the sensing field. The proposed research will also benefit university education, academic research, and photonic material development.

高光谱成像传感器采集和分析由一维光谱信息和二维空间图像信息组成的三维数据。它提供了比传统成像技术更准确的信息提取。特别是在红外波段，高光谱成像传感器可用于材料识别、化学和生物制剂识别、军事目标/诱饵识别和跟踪、智能导弹寻的、空间气象传感、污染场地的远程监测等。现有的高光谱成像设备使用固定的光谱频段，分析大量的三维数据速度太慢，不能满足实时应用的要求。我们提出开发一种新型的具有光谱变焦功能的高光谱成像传感器。通过使用特殊的光纤束，我们可以扩展空间域，并允许成像相机同时获取光谱信息的色散。因此，可以同时获取一维光谱图像信息和二维空间图像信息，而不需要像现有光谱成像设备通常所做的顺序采集。优选地，高光谱成像传感器可以为搜索发射特定光谱信息的感兴趣目标提供宽光谱频带。它也是最好的，它可以提供高光谱分辨率。利用有限的光谱像素，通过光谱缩放功能，光谱信息仍然可以覆盖宽光谱带(光谱过程图)和窄光谱带(光谱细视图)。该装置能够对针点特定目标区域的指定光谱范围进行等高线绘制，并能够快速处理光谱图像数据。高光谱成像是传感领域的重要组成部分，成功研制高光谱成像传感器和高灵敏度的溶胶凝胶膜具有重要的科学和工程价值。这项拟议的研究还将有利于大学教育、学术研究和光子材料的开发。