With multi-scales Hyperspectral Information processing, to explore the water quality change information of jujube large area outdoor. with near the ground remote sensing monitoring method. outdoor Zaoyuan hyperspectral image atmospheric correction, PCA, and other basic treatment methods, selection of jujubes spectra and characteristic wavelengths corresponding to labeled hyperspectral database. To mark and collect jujubes in the field of view of hyperspectral camera, By analyzing and correcting the spectral consistency of indoor and outdoor jujubes, the transfer between outdoor and indoor near infrared spectrum library was carried out. Combining the indoor quality measurement of southern jujubes and spectral correlation analysis method for extracting jujubes like spectral structure and quality feature information, the relationship changes between the different scales of spatial resolution and spectral resolution of the spectrum the conclusions, The scale of Single jujube and The scale of Canopy jujube tree indoor hyperspectral detection results are in good agreement, indicating that nearly ground to carry out indoor hyperspectral spectral consistency is good, through the spectrum image out door spectral database docking and model transfer. The establishment of the high spectral quality characteristics of jujubes perception model, exploring the growth process of jujubes outdoor large area change information of water quality with near ground remote sensing. provides an important reference in the future.
To detect the quality of jujube in outdoor with hyperspectral, part of the polarized light is formed by the absorption and scattering of atmospheric and jujube. Polarization dimension contains red jujube of fine quality information, by increasing the polarization spectrum detection, further improve the detection accuracy, research methods, the characteristics of high spectral band orthogonal polarization imaging technology, to obtain samples of jujube different orthogonal polarization direction of hyperspectral images. Texture features were extracted by PCA wavelength ratio. The basic processing methods of spectral region correction and spectral smoothing were used to compare the characteristic absorption peak of 992.65nm, 1188.96nm, 1449.96nm, 1107.68 nm and 1294.68nm in both indoor and outdoor southern xinjiang jujube. Results, comparative indoor and outdoor nearly hyperspectral images found on the ground, jujube and reflection spectral absorption peak position unchanged, spectrum waveform similar, affected by different band size is different, characteristic peak place have obvious difference, the longer the wavelength, the greater the difference. The hyperspectral images of parallel and vertical components of the target were obtained, and the orthogonal differential polarization spectrum information was obtained. The preliminary results were obtained by fine remote sensing of quality of jujube. The results show that the quality information of jujube can be obtained by using the orthogonal polarization imaging technology of high spectral characteristic band. It provides an important reference for monitoring the quality change information of large area jujube.