commission I:Sensor systems
WGI/1: Multi- and Hyperspectral Sensing
WGI/2: LiDAR, Air- and Spaceborne Optical Sensing
WGI/3: SAR and Microwave Sensing
WGI/4: Calibration and Validation of Satellite Sensors
WGI/5: New 3D Sensors for Metrology and Industrial Vision