6 papers
FG-TreeSeg: Flow-Guided Tree Crown Segmentation without Instance Annotations
Pengyu Chen, Fangzheng Lyu, Sicheng Wang +1
Individual tree crown segmentation is an important task in remote sensing for forest biomass estimation and ecological monitoring. However, accurate delineation in dense, overlappi…
Intelligent bear deterrence system based on computer vision: Reducing human-bear conflicts in remote areas
Pengyu Chen, Teng Fei, John A. Kupfer +3
Human-bear conflicts on the Tibetan Plateau threaten both local livelihoods and the conservation of Tibetan brown bears (Ursus arctos pruinosus). To address this challenge, we deve…
Cross-Modal Urban Sensing: Evaluating Sound-Vision Alignment Across Street-Level and Aerial Imagery
Pengyu Chen, Xiao Huang, Teng Fei +1
Environmental soundscapes convey substantial ecological and social information regarding urban environments; however, their potential remains largely untapped in large-scale geogra…
SDD-YOLO: A Small-Target Detection Framework for Ground-to-Air Anti-UAV Surveillance with Edge-Efficient Deployment
Pengyu Chen, Haotian Sa, Yiwei Hu +2
Detecting small unmanned aerial vehicles (UAVs) from a ground-to-air (G2A) perspective presents significant challenges, including extremely low pixel occupancy, cluttered aerial ba…
CoDrone: Autonomous Drone Navigation Assisted by Edge and Cloud Foundation Models
Pengyu Chen, Tao Ouyang, Ke Luo +2
Autonomous navigation for Unmanned Aerial Vehicles faces key challenges from limited onboard computational resources, which restrict deployed deep neural networks to shallow archit…
A GAN-Enhanced Deep Learning Framework for Rooftop Detection from Historical Aerial Imagery
Pengyu Chen, Sicheng Wang, Cuizhen Wang +4
Precise detection of rooftops from historical aerial imagery is essential for analyzing long-term urban development and human settlement patterns. Nonetheless, black-and-white anal…