The results showed that it was feasible to use the multi - spectral feature of plants to detect infield weed 研究结果表明：利用植物的多光谱特征识别田间杂草是可行的。
Discussion on application of support vector machine technique in extraction of information on landslide hazard from remote sensing images 基于光谱特征的遥感信息提取及成矿预测
The experimental means , reflectance spectra characteristics and application prospects of this method are given in this paper 本文介绍矿物的红外反射光谱的实验方法、光谱特征及应用前景。
High resolution with extreme sensitivity is achieved even though the mask images are overlapped , as is the case when there are closely spaced spectral features 尽管防护罩映像仍部分重叠，但还是能够获得高解析率、高灵敏度，这是因为存在紧密的空闲光谱特征。
A particular ir feature ( primarily denoted as fano - like spectral feature ) has been observed for the first time , when co is adsorbed on island films of particular structure 本论文首次观察到特定纳米结构薄膜(厚度大于13nm ，岛状结构)材料的fano类型光谱特征( fano - likespectralfeature ) 。
Image difference is the most direct change detection method for change area extraction , but the gray difference image that is only based on spectral feature is difficult in describing the structure change of an objects 图像差分是实现变化区域检测的最直接方法,但是仅仅根据地物光谱特征差异得到的灰度差分图像难以表征地物局部结构的变化。
In analysis of time field , wavelet transform is a new fast developed implement , has good localize character both in time and frequency field , its a relatively perfect method of spectral feature extraction 在时域分析方法中,小波变换是近年来迅速发展起来的一种新的工具,在时域和频域上同时具有良好的局部化特性,是一种比较理想的光谱特征提取方法。
In chapter 1 of this thesis , i describe the basic classifications of supernovae and also present the new development of the classification during the recent years . the characteristics of light curves and spectroscopy of supernovae are presented 本文在第一部分简述了超新星的分类，光变曲线，光谱特征，并讨论了有关超新星最新的分类，观测和研究进展。
( 5 ) based on the spectrum characteristic of the vary kinds of water , we expound the method to extraction them , improve the method of proportion estimation , put forward the best opportunity for extractioning the water of salt field 对水体提取方法? ?比率测算法进行算法改进，提出盐田水体提取的最佳时相，基于各种盐田水体的光谱特征，详细阐述它们各自的提取方法。
