John Cao
Sessions in which John Cao attends
Tuesday 29 October, 2024
How exactly does artificial intelligence work and what can you use it for in the geomatics domain? Using real-life examples from our projects, they demonstrate how you can use AI to gain new insights and increase efficiency by automating your data processing workflows.We explore how GeoAI is fusing spatial data science and Geomatics technology to help automate the extraction, classification, and analysis of all types of spatial or non-spatial data. Learn how GeoAI can detect clusters, ...
Accurate mapping of road networks is essential for navigation, disaster response, and urban planning. Traditional methods relying on remote sensing images, Lidar data, and GPS trajectories are hampered by time-consuming manual updates and incomplete extraction due to obstructions from trees, buildings, and shadows. However, recent advancements in deep learning models have shown promise in improving road mapping and automating the detection of missing roads.This study uses a transfer le...
Maintaining undisturbed habitat is key to the recovery strategy of the Woodland Caribou boreal population. Seismic lines have been identified as a human footprint feature that requires specific attention for habitat restoration in part because linear features are linked to increases in the predation rates of caribou as they provide lines of sight and easy transportation routes for predators. It is estimated that there are hundreds of thousands of kilometers of seismic lines within Alberta (AB...
Wednesday 30 October, 2024
With drones like the DJI Matrice 300 now being positioned using RTK GNSS, combined with Structure from Motion (SfM), high precision mosaics are possible without deploying targets. The ability to mount lidars (DJI L1 and L2) and other optical sensors (RGB, multispectral, thermal) allows for precise surveying and the production of high resolution and high accuracy mosaics with minimal ground control. While battery power still remains an issue and the limiting factor for flight duration (10’s of...
With the increasing focus on damage prevention, public safety concerns, and environmental damage due to underground utility strikes, it has become more critical to accuracy locate, store and be able to visualize subsurface utilities. Several key technical details are discussed when implementing a subsurface mapping system from data collection to the use of machine learning for 3D modelling and visualization. The ability to make safe and effective decisions for i...
