FLASH: Real-time super-resolution for low-cost LiDAR

Kari Jaaskelainen

11 Nov 2025 — 1 min read

FLASH: Sharper, faster LiDAR from low-cost sensors

Turning sparse laser scans into rich 3D views is hard and slow—until now. FLASH (Frequency-aware LiDAR Adaptive Super-resolution with Hierarchical fusion) upgrades low-resolution LiDAR to high detail in real time.

Dual-domain smarts: Combines local spatial attention with global frequency cues via FFT, capturing fine geometry and the periodic scanning patterns sensors produce.
Adaptive fusion: Learns, per position and scale, which features matter; CBAM attention boosts the right signals and suppresses noise.
State-of-the-art, single pass: On KITTI, FLASH tops all metrics and even beats uncertainty-heavy baselines (e.g., TULIP with Monte Carlo Dropout) without multiple forward passes.

Result: consistent gains at near and far ranges, with efficiency that fits real-time robotics and autonomous driving.

Paper: http://arxiv.org/abs/2511.07377v1

Paper: http://arxiv.org/abs/2511.07377v1

Register: https://www.AiFeta.com

#LiDAR #ComputerVision #AI #Robotics #AutonomousVehicles #3DPerception #DeepLearning #RealTime

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FLASH: Sharper, faster LiDAR from low-cost sensors

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