基于高光谱参量茶叶叶绿素含量估算模型研究

Studying on estimation model of tealeaf chlorophyll content based on high spectral parameters

根据实测叶绿素含量数据,采用原始光谱、导数光谱技术分析,得到估算铁观音茶树鲜叶叶绿素含量的光谱特征参数(DV640,R716),构建叶绿素含量的光谱参量模型,结果表明:用第5、6片叶的DV640参量构建模型估测精度较高,最高达到93%。

According to the measured data of the chlorophyll content and using the analysis techniques of original spectrum and derivative spectra, the spectral characteristic parameters （ DV640, R716 ） for estimating chlorophyll content in the fresh leaf of tea plant ＂Tieguanyin＂ were obtained and the spectral parameter model for estimating chlorophyll content was established. The results showed that the estimation accuracy of the model established by DV64o parameters of the fifth and sixth leaves could reach a higher value of 93%.