Sensor Systems

Terms of Reference

• Innovative and integrated UAS-oriented sensor and (small) platform concepts
• Systems and methods for terrestrial and mobile mapping in complex indoor and outdoor environments
• Small and low-cost active sensing (micro-LIDAR and -RADAR sensors)
• Design and realization of sensors and constellations for digital aerial and spaceborne missions for Earth observation
• Geometric and radiometric properties, quality standards, and factors affecting data quality
• Benchmark definition, calibration and evaluation of imaging and non-optical imaging sensors
• Integrated platform guidance, navigation, direct georeferencing (positioning and orientation) and integrated sensor orientation
• On-board (pre-)processing and concepts for embedded systems

WORKING GROUPS of ISPRS COMMISSION I

• WG I/1 - Multi- and Hyperspectral Sensing
• WG I/2 - LiDAR, Air- and Spaceborne Optical Sensing
• WG I/3 - SAR and Microwave Sensing
• WG I/4 - Calibration and Validation of Satellite Sensors
• WG I/5 - New 3D Sensors for Metrology and Industrial Vision
• WG I/6 - Multi-sensor Integration and Fusion
• WG I/7 - Mobile Mapping Technology
• WG I/8 - Satellite Constellations for Remote Sensing
• WG I/9 - Integrated Sensor Orientation, Calibration, Navigation and Mapping
• WG I/10 - Sensor Systems Verification, Benchmarks, Evaluation

INTERCOMMISSION WGs of ISPRS COMMISSION I

• ICWG I/II - UAS & Small Multi-sensor Platforms: Concepts & Applications
• ICWG I/IV - Robotics for Mapping and Modelling

WG I/1 - Multi- and Hyperspectral Sensing

WG I/1  Terms of Reference

• Design, calibration, simulation and physical modelling of hyperspectral and multispectral sensors
• Imaging spectroscopy based on snapshot frame- and line-based camera systems in the VNIR, SWIR and LWIR spectral ranges
• Sensor-oriented / physically-motivated hyperspectral data processing for performance analysis
• Feasibility study for the integration of emerging technologies such as smartphone spectrometers for validation purposes
• System performance investigations based on multi-sensor data fusion and multi- and hyperspectral applications

WG I/2 - LiDAR, Air- and Spaceborne Optical Sensing

WG I/2  Terms of Reference

• Design and assessment of topographic and bathymetric LiDAR sensor systems (e.g., multi-pulse, full-waveform, multi-/hyper-spectral, single-photon) mounted on airborne and spaceborne platforms
• Geometric and radiometric evaluation of optical sensor systems mounted on airborne and spaceborne platforms
• Data quality and performance validation of LiDAR and optical systems for digital surface modelling and 3D feature reconstruction
• Development and evaluation of innovative algorithms and software tools towards real-time LiDAR and optical data processing onboard airborne and spaceborne platforms
• Investigation and evaluation of systems integrating LiDAR and optical sensors

WG I/3 - SAR and Microwave Sensing

WG I/3  Terms of Reference

• Investigations on recent and upcoming spaceborne SAR sensors
• SAR big data and global coverage from Sentinel­1 mission 
• Investigations on new airborne SAR systems
• Evaluation of advanced SAR sensor modes and SAR constellations (e.g. bi-static, multi­-baseline, multi-­aspect, multi­-frequency, polarimetry etc.) 
• Fusion of SAR data and complementary data (e.g. optical imagery) 
• Liaison with other groups and societies, mainly TCIII-2, TCIII-3, as well as IEEE-­GRSS 

WG I/4 - Calibration and Validation of Satellite Sensors

WG I/4  Terms of Reference

• Parameter design and simulation of space borne optical system
• Geometric/radiometric calibration and validation including laboratory and in-flight calibration of space borne optical sensors
• Geometric imaging modeling of space borne optical sensors and/or LiDAR systems
• Analysis of direct sensor orientation accuracy and changes during the lifetime of sensors
• Evaluation of space borne sensors for DEM/DSM and DOM generation (cooperation with one working group of Commission II)

WG I/5 - New 3D Sensors for Metrology and Industrial Vision

WG I/5  Terms of Reference

• Developments and investigations on modern active sensing techniques (single photon detection, amplifying, statistics, etc.)
• Metric quality and (self-)calibration of low-cost 3D sensors (structured light cameras, time-of-flight cameras, etc.)
• Analysis of low-cost / micro-LIDAR and micro-RADAR systems
• Advances in industrial applications of 3D sensors (metric measurements, hand-eye-calibration, real-time object identification/recognition)

WG I/6 - Multi-sensor Integration and Fusion

WG I/6  Terms of Reference

• Multi-sensor system design and on-board processing;
• Cross-platform sensing with land-, air-, and space-borne platforms;
• Data quality control/assurance and enhancement for multi-sensor multi-platform solutions;
• Ubiquitous sensing solutions with non-conventional low cost sensors in mobile devices;
• GNSS/IMU/image/ranging sensor integration and fusion for positioning and navigation ( for indoor and outdoor);
• Inter-sensor synchronization and In-situ stability analysis of system calibration parameters.

WG I/7 - Mobile Mapping Technology

WG I/7  Terms of Reference

• Design, development and evaluation of mobile mapping systems
• Design and development of real-time data processing algorithms for mobile mapping systems
• Automation of information extraction from land-based mobile imaging and ranging sensor data
• Development of novel applications in virtual reality, GIS, transportation infrastructure mapping and assessment, including pavement and asset mapping, emergency response
• Cooperation with ICA, IAG, FIG, and other ISPRS WGs on 3D mobile mapping; image indexing and retrieval; 3D object reconstruction and city modelling; sensor integration and multiple sensing solutions; and applications in LBS and disaster management.

WG I/8 - Satellite Constellations for Remote Sensing

WG I/8  Terms of Reference

• Geometric and radiometric characterization of satellite constellations data
  (e.g. Planet, RapidEye, DMCII, etc.), spectral interpretability analysis.
• Comparison of constellations and with monolithic systems in algorithms and applications
• Data quality, usability, availability and timeliness; geometric, radiometric characterization of data from satellite constellations, spectral interpretability through remote sensing studies
• Advancements in image time series analysis through satellite constellations
• Evaluation of new applications with single or multiple satellite constellations, e.g. traffic monitoring using video from the space, time series 3D mapping with data from satellite constellations
• Development and evaluation of new algorithms and software tools of processing high temporal and spatial resolution data
• Collaborate with ISPRS WGs and other societies, including AGU, IEEE-GRSS,CV and other communities (Civil, Environmental, hydrology, etc.), to promote the use of satellite constellations for remote sensing applications.

WG I/9 - Integrated Sensor Orientation, Calibration, Navigation and Mapping

WG I/9  Terms of Reference

• General rigorous modeling of positioning and attitude sensors.
• Spatial absolute, relative and temporal modeling of non-standard sensors (low-cost, new-geometry, combined-geometry configurations).
• Use of Stochastic Differential Equations in orientation and calibration for photogrammetric applications.
• Orientation/calibration with UAV and micro aerial vehicles.
• Photogrammetric/LiDAR orientation and calibration: measurement techniques and models.

WG I/10 - Sensor Systems Verification, Benchmarks, Evaluation

WG I/10  Terms of Reference

• Characterisation of sensor behaviour from UV to LWIR, RADAR
• Traceability
• Image (data) quality (PSF & SNR)
• Prerequisites (Lab equipment): Radiation sources, collimators, integrating spheres
• Spatial, radiometric, etc. characterization on sensor level
  • Linearity, PTC, PRNU, DSNU, CTE, …
  • MTF, keyston, smile, etc.
• Algorithms and data evaluation, Usability

ICWG I/II - UAS & Small Multi-sensor Platforms: Concepts & Applications

ICWG I/II  Terms of Reference

• UAS navigation and positioning in outdoor and indoor environments
• UAS data processing and analysis for Photogrammetry and Remote Sensing applications (Scientific Research, Commercial, Defense)
• UAS platforms, payloads, instruments and their on board integration for Photogrammetry and Remote Sensing (LIDAR, Multi and hyperspectral, Thermal, SAR, gas detectors, etc.)
• Integration of UAS data with information acquired by different platforms (satellite, airborne and terrestrial) and sensors (active and passive)
• Documentation and comparison of innovative UAS systems and sensors in Photogrammetry and Remote Sensing
• Comparison of UAS regulations and contribution to new regulations in different countries
• Dissemination of learning and teaching material on the use of UAS in Academia
• Collaboration with other scientific communities and associations involved in UAS applications (EuroSDR, robotics, computer vision, electronics, etc.)
• Cooperation and involvement of industrial partners in ISPRS activities

ICWG I/IV - Robotics for Mapping and Modelling

ICWG I/IV  Terms of Reference

• Address challenges in employing robotics for mapping and challenges in map representations for robotics and autonomous vehicle navigation
• Assess robotic mapping platforms for indoor and outdoor environments
• Evaluate localisation and mapping sensors for indoor and outdoor robotics
• Investigate the use of on-board sensors of autonomous vehicles for mapping and map updating purposes
• Research and apply spatial representations, data structures and database technologies for large scale mapping and map updating
• Address the derivation and updating of sustainable urban and building models
• Investigate the semantic enrichment of urban and indoor models, specifically for analysis and autonomous navigation purposes
• Exploit synergies between indoor mobile mapping and building information modelling (BIM)
• Investigate new robotic and indoor mobile mapping applications
• Develop and implement indoor mobile mapping benchmarks
• Establish and strengthen contacts with the robotics community