• Acta Photonica Sinica
  • Vol. 50, Issue 2, 166 (2021)
Jiejun WANG1、2, Shaohui LIU1、2, Shu LI1、2、*, Song YE1、2, Xinqiang WANG1、2, and Fangyuan WANG1、2
Author Affiliations
  • 1School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin, Guangxi54004, China
  • 2Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin, Guangxi541004,China
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    DOI: 10.3788/gzxb20215002.0228001 Cite this Article
    Jiejun WANG, Shaohui LIU, Shu LI, Song YE, Xinqiang WANG, Fangyuan WANG. Optimization Algorithm for Polarization Remote Sensing Cloud Detection Based on Machine Learning[J]. Acta Photonica Sinica, 2021, 50(2): 166 Copy Citation Text show less
    Structure of PSO-BP neural network
    Fig. 1. Structure of PSO-BP neural network
    PSO-BP neural network flow chart
    Fig. 2. PSO-BP neural network flow chart
    Cloud detection flow chart
    Fig. 3. Cloud detection flow chart
    Change curve of fitness value
    Fig. 4. Change curve of fitness value
    Fitting relationship distribution of verification set and test set
    Fig. 5. Fitting relationship distribution of verification set and test set
    Cloud distribution map of experimental area
    Fig. 6. Cloud distribution map of experimental area
    Pixel cloud light thickness analysis chart
    Fig. 7. Pixel cloud light thickness analysis chart
    Data dimensionCharacteristic data name
    1443 nm reflectivity in 2, 5, 8 and 12 directions
    2670 nm reflectivity in 2, 5, 8 and 12 directions
    3490 nm polarized reflectance in 2, 5, 8 and 12 directions
    4670 nm polarized reflectance in 2, 5, 8 and 12 directions
    5865 nm polarized reflectance in 2, 5, 8 and 12 directions
    6R670/R865 reflectivity combination in 2, 5, 8 and 12 directions
    7R763/R765 reflectivity combination in 2, 5, 8 and 12 directions
    8CALIPSO lidar cloud detection label data
    Table 1. Feature data set
    Methods adoptedMethod typeCloud pixelClear pixelUndetermined pixel
    POLDER3 officialThreshold method1147112112
    MODIS officialThreshold method1429(312)947(-200)0
    BPNNMachine learning method1279(162)1097(-50)0
    PSO-BPNNMachine learning method1388(271)988(-159)0
    Table 2. Quantitative comparison of each pixel algorithm
    Jiejun WANG, Shaohui LIU, Shu LI, Song YE, Xinqiang WANG, Fangyuan WANG. Optimization Algorithm for Polarization Remote Sensing Cloud Detection Based on Machine Learning[J]. Acta Photonica Sinica, 2021, 50(2): 166
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