Green tide algae area monitoring method based on unmanned aerial vehicle airborne multi-spectrometer

• Main Authors: JIN WA, LIU FENG, FU XINGHU, SHI FENGXING, BI WEIHONG, ZHANG BAOJUN, FU GUANGWEI
• Format: Patent
• Language: Chinese; English
• Published: 16.09.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention belongs to the technical field of green tide monitoring, and provides a green tide area monitoring method based on an unmanned aerial vehicle-mounted multi-spectrometer, and the method comprises the steps: data collection and data processing: carrying out the aerial photography data collection of the multi-spectrometer in a green tide outbreak region through an unmanned aerial vehicle; the data processing is to process the collected multispectral data, including radiation correction processing, multispectral image splicing, green tide algae identification and segmentation and area calculation; according to the method, data are collected through an airborne multi-spectrometer, then the collected multi-spectral data are processed, green tide algae in a multi-spectral image are identified and segmented, the number of pixels of the green tide algae is counted, then the actual area represented by a single pixel is calculated according to the ground sampling distance, and then the real area of the gre