Petter Risholm
Senior Research Scientist
Petter Risholm
Senior Research Scientist
Publications and responsibilities
Bruk av droner i nordområdene
Adaptive Structured Light with Scatter Correction for High-Precision Underwater 3D Measurements
Range-gated imaging system for underwater monitoring in ocean environment
High-quality video observations are very much needed in underwater environments for the monitoring of several ecosystem indicators and to support the sustainable development and management of almost all activities in the ocean. Reliable video observations are however challenging to collect, because...
SEAVENTION - Autonomous underwater intervention
Real-time super-resolved 3D in turbid water using a fast range-gated CMOS camera
We present a range-gated camera system designed for real-time (10 Hz) 3D estimation underwater. The system uses a fast-shutter CMOS sensor (1280×1024 1280×1024 ) customized to facilitate gating with 1.67 ns (18.8 cm in water) delay steps relative to the triggering of a solid-state actively 𝑄 Q...
A scatter removal technique to enhance underwater range-gated 3D and intensity images
High-resolution structured light 3D sensor for autonomous underwater inspection
UTOFIA project - A new compact, cost-efficient concept for underwater range-gated imaging
Design tool for TOF and SL based 3D cameras
Active illumination 3D imaging systems based on Time-of-flight (TOF) and Structured Light (SL) projection are in rapid development, and are constantly finding new areas of application. In this paper, we present a theoretical design tool that allows prediction of 3D imaging precision. Theoretical...