Spectral recognition based on interferogram matching
-
摘要: 干涉光谱技术的优点是可以获取高分辨率的目标光谱图,再通过光谱匹配,可以实现目标的识别和分析,但它须经过从干涉图到光谱图的傅立叶变化过程。针对快速目标识别的应用,提出了基于干涉图匹配的光谱识别技术。在干涉光谱探测设备得到目标干涉图后,通过对其干涉图的匹配操作,可以确定待识别目标和期望目标的相似程度。由于目标识别中省去了傅立叶变化,使目标光谱识别的速度得到了提高。仿真计算结果表明,干涉图匹配技术从理论上是完全可行的。Abstract: One advantage of interferential spectrometer is that it provides high-resolution spectrum, which can be used to recognize and analyze objects through spectral matching. The Fourier transform is a necessary step in converting inferferogram to spectrum, while it is complex and time-consuming. A spectral recognition technology based on interferogram matching is proposed without Fourier transform. The interferogram of object to be matched is obtained by interferential spectrometer, and it is matched to the expected one through correlation calculation, which is a relatively rapid process. The simulation result validates the feasibility of the technology.
-
Key words:
- interferential spectrometer /
- spectral matching /
- interferogram /
- object recognition
-
[1]宫彦军,王艳红,禹秉熙.高广谱识别目标的光谱分离分析方法[J].内蒙古大学学报(自科学版),2003,34(2):231-234.
GONG Yan-jun, WANG Yan-hong, YU Bing-xi. Spectral unmixing analysis method of identifying targets in hyperspectrum. Acta Scientiarum Natrualium Universitatis NeiMongol, 2003,34(2):231-234.(in Chinese with an English abstract)
[2]张良培,李德仁.人工神经元网络在光谱识别中的应用[J]. 光谱学与光谱分析, 1999,19( 2):158-160.
ZHANG Liang-pei, LI De-ren. Artificial neural network application in spectral recognition[J]. Spectroscopy and Spectral Analysis,1999, 19( 2):158-160.(in Chinese with an English abstract)
[3]GUELACHVILI G.傅里叶变换光谱[M]. 张知廉,译.北京:北京大学出版社, 1990:10-12.
GUELACHVILI G. Fourier Transform Spectroscopy[M].Translated by ZHANG Zhi-lian. Beijing:Peking University Press, 1990:10-12.(in Chinese)
[4]相里斌. 傅里叶变换光谱仪中的主要技术环节[J]. 光子学报,1997, 26(6):550-554.
XIANGLI Bing . The key design issues in Fourier transform spectrometers[J]. Acta Photonica Sinica. 1997, 26(6):550-554.( in Chinese with an English abstract)
[5]BHALOTRA S R,KUNG H L,JIAO Y, et al. Adaptive time-domain filtering for real-time spectral discrimination in a Michelson interferometer[J]. Optics Letters, 2002,27(13):1147-1149.
[6]CHAMBERLAIN J E, CHANTRY G W, STONE N W B. The principles of interferometric spectroscopy[M]. New York: A WileyInterscience Publication,1979.
[7]李新双,张良培,李平湘. 光谱数据库系统的设计及应用[J]. 测绘信息与工程,2004,29(5):6-8.
LI Xin-shuang, ZHANG Liang-pei, LI Ping-xiang. Design of ground object spectral library[J]. Journal of Geomatics, 2004,29(5):6-8. ( in Chinese with an English abstract) -

计量
- 文章访问数: 3386
- HTML全文浏览量: 79
- PDF下载量: 588
- 被引次数: 0