Positioning that works where GNSS doesn’t.
Urban canyon · Indoor · Tunnel · Jammed environments — multi-source fusion for embodied autonomous systems.
Algorithms deployed across consumer-grade and industrial platforms.
Android
HUAWEI
OPPOHuawei Car BU
HONOR
Tencent Maps
Meituan
Google
SAIC Motor
AIROHA
MediaTek
NYU Langone
HKSI
Hotel ICONFounder & PI and Senior Research Fellow.
- 2023 ION Per Enge Early Achievement Award
- 20 mo Google Mountain View Visiting Researcher
- HK$32M+ cumulative funding as PI / PC
- Chair ION/IAG WG on Asian Urban Canyons
- 7 yr Google Spatial AI Tech Lead
- R&D Google Maps · Android · Waymo · Wing
- Co-founder Google Smartphone Decimeter Challenge
- PhD in Computer Science Texas A&M University
How the work runs in real deployments.
Continuous reliable positioning across complex urban roads.
Where GNSS becomes untrustworthy — multi-layer overpasses, tunnels, urban canyons — IPNL provides integrity judgement and multi-source fusion so the trajectory stays continuous and deployable.
CNN-based direct positioning on smartphones in urban environments.
Moving from traditional indirect positioning to end-side deep feature learning — improving GNSS solution stability in urban canyons. Verified across Beijing, Shanghai, Shenzhen, and Hong Kong commercial districts.
Continuous positioning + inspection in GNSS-denied stairwells.
Hong Kong's high-rise stairwells need high-frequency inspection. Stairio is a handrail-affixed locomotion platform with onboard AI vision — closed loop of localization, inspection, recording, alerting.
High-frequency motion monitoring for Olympic athletes.
Marine buoy-deployed UWB-GNSS sensors. The lab converts real-time position, speed, and event indicators into actionable training feedback — turning post-race review into in-session reliable data.
Four engineering directions, each with a clear industry exit.
Urban GNSS
3D map-aided positioning, NLOS detection, and multi-sensor coupling for dense city blocks.
Smart driving · ride-hailing · urban deliveryLightweight indoor PNT
Indoor positioning under terminal compute and power constraints — smartphones, wearables, AR.
Smartphone · wearable · AR glassesSignal-denied navigation
Continuous positioning in tunnels, underground utility corridors, and mining sites.
Mining · utility corridor · inspectionAnti-jamming PNT
Robust positioning under interference, spoofing, and signal denial.
Defense · aviation · critical infrastructureLive engineering projects, 2026 cohort.
Vehicle self-diagnosis
Onboard runtime integrity monitoring for autonomous and assisted driving.
Urban Air Traffic Management
Robust GNSS for low-altitude drones in HK/Mainland airspace.
Multi-Agent Collaborative GNSS
Cooperative positioning across vehicle fleets sharing range and signal observations.
Stairio — autonomous staircase inspection
GNSS-denied indoor mobility. Geneva 2026 Gold Medal. Hotel ICON pilot site.
Awards, residencies, patents.
- 2026 Geneva Inventions Gold Medal — Stairio.
- 2024 Google Unrestricted Research Grant · completion of 20-month residency at Google Android Context.
- 2024 US Patent 12 123 961 B2 — 3D LiDAR-Aided GNSS NLOS Detection and Correction.
- 2022 PolyU Presidential Award in Knowledge Transfer.
- 2023 ION Per Enge Early Achievement Award — sole international recipient for the year.