a non-destructive, rapid and low-cost determination of date fruit moisture content is one of the most determining factors in maturity assessment and processing of this valuable product. on the other hand, the potential of near infrared (nir) spectroscopy in nondestructive internal quality evaluation of agricultural products has been proved throughout several studies. in this research, three mod...

To satisfy the increasing demand for soybeans, identifying and sorting high-vigor seeds before sowing is an effective way to improve yield. Polarized hyperspectral imaging (PHI) technology here proposed as a rapid, non-destructive method detecting vigor of naturally aged soybean seeds. First, spectrum 396.1–1044.1 nm was collected automatically extract region interest (ROI). Then, first derivat...

Soluble solid content (SSC) is a major quality index of kiwifruits. Visible near-infrared (Vis/NIR) hyperspectral imaging with the genetic algorithm (GA) was adopted in this study to realize non-destructive prediction kiwifruit SSC. A laboratory Vis/NIR system established collect 120 samples at range 400–1100 nm. The average reflectance spectral data region interest were obtained after differen...

Uninformative biological variability elimination methods were studied in the near-infrared calibration model for predicting the soluble solids content of apples. Four different preprocessing methods, namely, Savitzky-Golay smoothing, multiplicative scatter correction, standard normal variate, and mean normalization, as well as their combinations were conducted on raw Fourier transform near-infr...

The vitality of corn seeds is a significant indicator for assessing the quality and yield crops. In recent years, numerous information technologies have been adopted to analyze seed provide support efficient equipment. However, there are still some shortcomings in these technologies, which decrease accuracy identifying various practical applications. this paper, synthesized classification metho...

The identification of seed vigor is great significance to improve the germination rate, increase crop yield, and ensure product quality. In this study, based on a hyperspectral data acquisition system an improved feature extraction algorithm, model characteristics for corn seeds was constructed. research, standard test Zhengdan 958 were carried out. By integrating in spectral range 386.7–1016.7...

A rapid quantification method was developed and validated for simultaneous and nondestructive quantifying the constituent sugar concentrations of intact apples using Fourier transform near-infrared (FT-NIR) spectroscopy in diffuse reflectance mode. Multiplicative scatter correction (MSC), the second derivative of Savitsky-Golay, and mean centering were used as spectral preprocessing options. Ca...

Black tea has a long history in China, but export trade, pesticide residues often exceed the standard. To obtain rapid, accurate, and non-destructive identification method of on black tea, fluorescence hyperspectral data dry sprayed with distilled water six pesticides were collected this study. The spectra preprocessed by multiplicative scatter correction (MSC) standard normal variate (SNV). Th...

Visible and near infrared (Vis/NIR) spectroscopy was investigated for the fast analysis of superoxide dismutase (SOD) activity in barley (Hordeum vulgare L.) leaves. Seven different spectra preprocessing methods were compared. Four regression methods were used for comparison of prediction performance, including partial least squares (PLS), multiple linear regression (MLR), least squares-support...