The New Era of Mobile Scanning

GIM International Interviews Felix Reinshagen, CEO of NavVis
Indoor mobile mapping is well past the tipping point and is about to go mainstream. Felix Reinshagen is co-founder and CEO of NavVis, a company that was set up with the objective of bridging the gap between outdoor and indoor digital maps. In this interview, he shares his views on the future, including his confidence that there will be plenty more developments in automatically generated assets from reality capture and how 3D scanning and the geospatial industry are set to impact the world in many respects. Do you see laser scanning becoming a commodity in the near future, or will... (read more)
2020-09-28 08:57:16

Kinematic Laser Scanning in Assessing Urban Land Use and Utility Infrastructure

Fast Site Visits and Accurate 3D Mapping
Urbanization and the development of megacities poses critical challenges for sustainable but efficient land use globally. Power lines, pipelines for water, district heating, gas and oil, and other technological systems are critical yet often hidden assets facilitating today’s lifestyles. Meanwhile, there is an ever-important need to preserve natural environments and recreational spaces in the world’s cities, despite the pressure to spread more concrete and asphalt to accommodate the people and businesses flocking to them. This article examines how kinematic laser scanning can support urban planning and infrastructure management. There is an ever-increasing need to use the limited urban land area... (read more)
2020-09-28 08:39:46

PolyExplore Unveils High-Precision UAV Lidar Mapping System

PolyExplore has launched the Polyscanner LS1, a high-precision Lidar mapping system designed for UAVs and other aerial platforms. Based around advanced solid-state Lidar technology, the Polyscanner LS1 uses an innovative scanning pattern and focused field of view (FOV) to create a dense point cloud with a detection range of over 200 metres. This latest addition to the Polyscanner family of aerial mapping platforms incorporates PolyExplore’s Polynav 2000 precision GNSS-aided INS (inertial navigation system) technology, featuring a dual-frequency, dual-antenna, quad-constellation PPK/RTK capable receiver with centimeter-level accuracy and a tactical grade IMU. Sensor fusion post-processing software is also included as part of... (read more)
2020-09-24 10:03:35

Konstantinos Karantzalos

Konstantinos Karantzalos received the engineering diploma degree from the National Technical University of Athens (NTUA), Athens, Greece, and a PhD in 2007 from NTUA in collaboration with CERTIS, Ecole Nationale de Ponts et Chaussees, Paris, France. In 2007, he joined the Center for Visual Computing of the Department of Applied Mathematics, Ecole Centrale de Paris, Châtenay-Malabry, France. He is currently an associate professor of remote sensing at the NTUA, joining the Remote Sensing Laboratory. His teaching and research interests include geoscience and remote sensing, big data, hyperspectral image analysis, computer vision and pattern recognition, environmental monitoring and precision agriculture. Several... (read more)
2020-09-18 01:14:13

Advanced Urban 3D Modelling and Visualization

A Generic Workflow for Automatic Building Detection and 3D Modelling
The automatic detection, data extraction, 3D modelling and visualization of buildings in urban areas using remote sensing data is an essential task in various applications such as cadastre, urban and rural planning, change detection, mapping, updating geographic information systems, monitoring, housing value and navigation. Even today, this task still remains challenging due to the inherent artefacts (e.g. shadows) in the remote sensing data used, as well as the differences in viewpoints, surrounding environment, complex shape and size of the buildings. This article outlines a generic workflow using modern technologies. Besides the recent developments in image processing, advances in computer vision... (read more)
2020-09-18 01:09:28

3D Smart Digital Model Shows Calamities in a City with One-look Overview

A unique 3D smart digital model has been developed to combine the different streams of data from cities on one common platform, and is the result of the ITEA project PS-CRIMSON, a collaboration of six academic and industry partners from the Netherlands and Canada. With this platform, public safety and disaster management can be improved, as pilot projects in Eindhoven and Vancouver have shown. Researchers from Eindhoven University of Technology developed AI image technology that can detect the location of incidents from an image and retrack the walking routes of people using multiple cameras. Today, PS-CRIMSON was awarded with the ITEA Award... (read more)
2020-09-18 11:09:27

Full Automation in Mobile Lidar Data Classification

An End-to-end Framework Using 3D CNN and SVM
A deep learning architecture called MMCN opens up the possibility for fully automated classification of highly dense 3D point cloud data acquired from a mobile Lidar system. This offers interesting opportunities in applications such as high-density maps, autonomous navigation and highway monitoring. Classification of highly dense 3D point cloud data acquired from a mobile Lidar system (MLS) is essential in applications like creating high-density maps, autonomous navigation and highway monitoring. MLS data classification algorithms available in the current literature use several parameters or thresholds. The right selection of these parameters is critical for the success of these algorithms under different... (read more)
2020-09-10 09:37:41

UAVs Help Monitor Lake Winnipeg Ice Hazards

Fixed-wing drones from senseFly have been used to track and monitor the formation of lake ice hazards on Lake Winnipeg by NextGen Environment Research, a Canadian company based in Winnipeg. The project, conducted as part of the Canadian Space Agencies Earth Observation Applications Development Program (EODAP), aimed to identify and monitor the levels of lake ice and detect cracks and pressure ridges to raise awareness among local communities and first responders about the risks of lake ice travel. With studies projecting a reduction in lake ice mass over the coming years, ice safety is becoming a critical consideration for many... (read more)
2020-09-08 03:35:38

Processing Sentinel-1 Images of Hurricane Laura's Landfall in Louisiana

Hurricane Laura made landfall on the coast of Louisiana, southwest of Lafayette, USA, on 27 August at roughly 2 a.m. Eastern time. Hurricane-force winds of up to 74 miles per hour (120 km/h) were reported, causing considerable damage to property and sadly also the loss of many lives. While the Sentinel-1 satellites (Sentinel 1A and 1B) are designed to collect standard coverages on fixed dates (repeat pass every 6 days typically using both satellites). As it turns out, Sentinel 1A collected an image just a few hours after the hurricane made landfall, at roughly 6.30 a.m. Eastern time. At PCI... (read more)
2020-09-02 01:48:00

Trimble Adds New Innovation to Flagship GNSS Solution

Trimble has introduced the Trimble R12i GNSS receiver, the latest addition to its Global Navigation Satellite System (GNSS) portfolio. The Trimble R12i incorporates Inertial Measurement Unit (IMU)-based tilt compensation using Trimble TIP technology, which enables points to be measured or staked out while the survey rod is tilted. This empowers land surveyors to focus on the job at hand and complete work faster and more accurately.  The IMU-based tilt compensation capability of the Trimble R12i builds on Trimble’s highly regarded ProPoint GNSS positioning engine which, according to the company, delivers more than 30% better performance in challenging environments compared to... (read more)
2020-09-02 10:13:02
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