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10th Floor, Hanhai Great Wall Building, No. 22 Shijingshan Road, Shijingshan District, Beijing
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Beijing Huayirui Technology Co., Ltd
Authenticity verification automatic observation system
NegotiableUpdate on 02/21
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Overview
System composition: List of instruments or items involved in measurement and inspection: Security cameras; MicaSense five channel multispectral camera; Stardot network camera; S-110 hyperspectral radiometer; NDVI sensor power supply module; Data transmission module; Data management software module;
Product Details
system composition
List of instruments or items involved in measurement and inspection:
Security cameras;
lMicaSense five channel multispectral camera;
lStardot network camera;
lS-110 hyperspectral radiometer;
lNDVI sensor
lPower supply module;
lData transmission module;
lData management software module;
True value (standard value) acquisition device
The advantages of geometric correction include:
ldistortion correctionCorrection for image edge distortion
lImage registrationCorrection for inconsistent imaging positions of multiple cameras
lCalibration of multiple cameras- Correction for uneven performance of each camera (consistency for NDVI)
data analysis
lMultispectral camera data analysis（Micasense）
lNDVI measurement values from September 2, 2017 to September 29, 2017 (measured every half hour from 10am to 2pm, for a total of 9 time points; excluding cloudy or rainy days).
lStartdot Camera Data Analysis
lVertically installedThe NDVI data of RGB cameras shows a significant trend of change with weather and sunlight within * * (preliminary calculation, no algorithm filtering).
lTilted installationThe NDVI data of RGB cameras shows a significant trend of variation within * * with changes in weather and sunlight.
Camera distortion correction
lRadial distortion coefficientR1, R2, R3
lTangential distortion coefficientT1, T2
lCorrection formula
