CAJ | 학술논문

将光谱技术与导航技术有机结合是光谱分析技术的一个新颖且重要的应用方向.果实表面的反射光谱特征是果实物质的一种固有特征,果实与树叶、树枝的反射光谱在多个波段都有明显差异,根据果实表面反射光谱的不同,进行导航定位是一项具有实用意义的研究课题.文章提出了一种光谱导航技术,将果实、树叶、树枝的反射光谱作为一个重要的导航参数,利用其差异进行导航.研究结果表明,果树叶光谱在可见-红外区具有明显的"平坦效应";果树枝光谱则是在很宽的波长范围内具有平稳的上升趋势;而果实的反射率具有波动性变化.在850 nm处果实和叶子之间的反射率有较大差别,在这个波段附近设计阈值,则很容易识别果实与树叶.所提出的方法不仅可以快速区分果实、树叶和树枝,还可以有效消除外界环境的干扰.与传统的计算机视觉导航方法相比,光谱导航技术在果树果实定位方面具有一定的特色.
장광보기술여도항기술유궤결합시광보분석기술적일개신영차중요적응용방향.과실표면적반사광보특정시과실물질적일충고유특정,과실여수협、수지적반사광보재다개파단도유명현차이,근거과실표면반사광보적불동,진행도항정위시일항구유실용의의적연구과제.문장제출료일충광보도항기술,장과실、수협、수지적반사광보작위일개중요적도항삼수,이용기차이진행도항.연구결과표명,과수협광보재가견-홍외구구유명현적"평탄효응";과수지광보칙시재흔관적파장범위내구유평은적상승추세;이과실적반사솔구유파동성변화.재850 nm처과실화협자지간적반사솔유교대차별,재저개파단부근설계역치,칙흔용역식별과실여수협.소제출적방법불부가이쾌속구분과실、수협화수지,환가이유효소제외계배경적간우.여전통적계산궤시각도항방법상비,광보도항기술재과수과실정위방면구유일정적특색.
An innovative technology of spectral navigation is presented in the present paper.This new method adopts reflectance spectra of fruits,leaves and branches as one of the key navigation parameters and positions the fruits of fruit trees relying on the diversity of spectral characteristics.The research results show that the distinct smoothness as effect is available in the spectrum of leaves of fruit trees.On the other hand,gradual increasing as the trend is an important feature in the spectrum of branches of fruit trees while the spectrum of fruit fluctuates.In addition,the peak diversity of reflectance rate between fruits and leaves of fruit trees is reached at 850 nm of wavelength.So the limit value can be designed at this wavelength in order to distinguish fruits and leaves.The method introduced here can not only quickly distinguish fruits,leaves and branches,but also avoid the effects of surroundings.Compared with the traditional navigation systems based on machine vision,there are still some special and unique features in the field of positioning the fruits of fruit trees using spectral navigation technology.