To main content

Jostein Thorstensen

Research Scientist

Jostein Thorstensen

Research Scientist

Jostein Thorstensen
Phone: +47 982 83 963
Department: Smart Sensor Systems
Office: Oslo

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1681035

This paper describes a 3D measurement algorithm based on Multi-Frequency Phase Stepping, using a single period pattern and a higher frequency pattern. An experimentally verified analytical expression for depth precision enables adaptive selection of the high frequency. The algorithm has several adva...

Year 2018
Type Conference lecture and academic presentation
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1620929

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...

Authors Risholm Petter Thorstensen Jostein Bruun Thielemann Jens T Kaspersen Kristin Tschudi Jon Yates Chris Softley Chris Abrosimov Igor Alexander Jonathan Haugholt Karl Henrik
Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1567223

In this article the development of a newly designed Time-of-Flight (ToF) image sensor for underwater applications is described. The sensor is developed as part of the project UTOFIA (underwater time-of-flight image acquisition) funded by the EU within the Horizon 2020 framework. This project aims to...

Authors Driewer Adrian Abrasimov Igor Alexander Jonathan Benger Marc O'Farrell Marion Haugholt Karl Henrik Softley Chris Thielemann Jens T Thorstensen Jostein Bruun Yates Chris
Year 2017
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1510497

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 exp...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1255450

Structured light is a robust and accurate method for 3D range imaging in which one or more light patterns are projected onto the scene and observed with an off-axis camera. Commercial sensors typically utilize DMD- or LCD-based LED projectors, which produce good results but have a number of drawback...

Authors Skotheim Øystein Schumann-Olsen Henrik Thorstensen Jostein Bruun Kim Anna N. Lacolle Matthieu Jean P Haugholt Karl Henrik Bakke Thor
Year 2015
Type Journal publication