Haojie Liu
Chinese Ministry of Education
18 Papers
19 Citations
Haojie Liu is an academic researcher from Chinese Ministry of Education. The author has contributed to research in topics: Correlation coefficient & Water content. The author has an hindex of 4, co-authored 18 publications.
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Papers
A novel wavelength selection strategy for chlorophyll prediction by MWPLS and GA
TL;DR: Liu et al. as mentioned in this paper proposed a novel wavelength selection strategy by the combination of moving window partial least squares (MWPLS) and genetic algorithm (GA) for the chlorophyll content detection of winter wheat canopy using spectroscopy technology.
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Estimation of chlorophyll content in maize canopy using wavelet denoising and SVR method
TL;DR: In this paper, the spectral reflectance of maize canopy was measured and processed following wavelet denoising and multivariate scatter correction (MSC) to reduce the noise influence, and the chlorophyll content estimation model was developed by using support vector regression (SVR) method.
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PCA based model on chlorophyll content diagnosis of winter wheat
TL;DR: In this article, a full spectrum analysis method was applied in order to break through the limit of sensitive waveband instability at different growth stages, and multiple regression models of chlorophyll content were established based on the selected principal component combinations at each growth stage.
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Performance test and parameter optimization of variable spraying liquid fertilizer machine
TL;DR: In this article, the performance test and parameter optimization of variable spraying liquid fertilizer machine was conducted in this research for the uniform spraying of foliar fertilizer, where three factors and three levels of test were performed based on the Box-Behnken center-united experimental design principles.
5
Nutrient content monitoring of potato plant based on spectrum device
TL;DR: In this paper, a spectrum device based on the Ocean Optics STS-VIS sensor was developed to measure the spectral reflectance at 350-800 nm, which could be measured by optical sensor, data transmission module and the controller.
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