Estimation Models of Chlorophyll Contents in Leaves of Acacia Confusa Based on the Red Edge Position
Under BRDF testing system conditions, ASD FieldSpec Pro FR spectroradiometer was used to collect the spectral reflectance of Acacia confusa, and UV2450 spectrophotometer was utilized to determine the chlorophyll content from observation foliage. Models for the estimation of chlorophyll content were built by fitting the chlorophyll content and the red edge position variables obtained from the spectral data by using different algorithms. The results show that the red edge position obtained from the different algorithms is feasible in the estimation of chlorophyll content, and the fifth-order polynomial fitting technique has achieved the highest accuracy among the different algorithms, followed by the accuracy through smooth process after the first derivative.
hyperspectralthe red edge positionAcacia confusachlorophyll
NETL
NSTL
万方数据
维普
