激光与光电子学进展, 2019, 56 (23): 232501, 网络出版: 2019-11-27
基于光谱测量数据的自适应波段选择技术 下载: 1121次
Adaptive Band Selection Technique Based on Spectral Measurement Data
光电子学 光电探测 多种目标 自适应 波段选择 optoelectronics photoelectric detection multiple targets adaptive band selection
摘要
基于光谱测量数据,综合考虑背景辐射和仪器噪声对目标探测的干扰,提出一种自适应波段选择方法,并进行实验验证。利用声光可调谐(AOTF)成像光谱仪采集光谱数据,光谱扫描波段为400~1000 nm。对天空背景下的无人机目标和墙面背景下的静态物体目标进行探测,计算各波长的综合信噪比,以综合信噪比最大值的70%为阈值,选择合适的工作波段。波段选择的结果符合实际情况,所提方法能有效地选择不同目标的最优探测波段。
Abstract
In this study, we propose an adaptive band selection method based on the spectral measurement data, considering the interference of background radiation and instrument noise on target detection. Further, an acousto-optic tunable filter imaging spectrometer is used to collect the spectral data with a spectral scanning band of 400-1000 nm. An unmanned aerial vehicle target and a static object are detected against a sky background and a wall background, respectively. The integrated signal-to-noise ratio of each wavelength is calculated to be 0.7 times the maximum value and is set as the threshold for selecting an appropriate working band. The band selection result is in accordance with the actual situation. The experimental results demonstrate that the proposed method can effectively select optimal detection bands for different targets.
周佳巧, 崔文楠, 张涛, 黄夏阳, 王周春. 基于光谱测量数据的自适应波段选择技术[J]. 激光与光电子学进展, 2019, 56(23): 232501. Jiaqiao Zhou, Wennan Cui, Tao Zhang, Xiayang Huang, Zhouchun Wang. Adaptive Band Selection Technique Based on Spectral Measurement Data[J]. Laser & Optoelectronics Progress, 2019, 56(23): 232501.