Spectral Imaging Laboratory

The research of the Spectral Imaging Laboratory combines hyperspectral imaging and image data analysis with state-of-the-art methods in modeling, simulation and machine learning. Spectral imagery includes spatial and spectral data: we focus on solving theoretical and practical problems involving multidimensional data.

Hyperspectral imaging can be used, for example, in remote sensing applications in forestry, agriculture and marine biology. There are also applications in the paper industry and quality control in the pharmaceutical industry. Hyperspectral imaging can also be used to monitor food quality and safety. In biomedical applications, e.g. wounds, skin cancer tumors and breast cancer.

Hyperspectral imaging is applied in research in many fields. The application requires expertise in spectral imaging and data analysis, as well as knowledge of the research topic. For our part, we are trying to lower the adoption threshold of hyperspectral imaging in applications in various fields. In connection with this, we work in several cooperation projects with e.g. VTT's hardware developers, hospitals, doctors, biologists and other professionals.

Our laboratory has several spectral cameras for different wavelength ranges (400 - 2500 nm). In addition to our permanent equipment, we have worked with various prototype cameras, and developed our own line scanner-type hyperspectral camera. In addition to the cameras, we have a compatible microscope with which we can photograph, for example, cell samples.

Our cameras are easy to move: you can shoot with them both in the laboratory and in the field.

Cameras	wavelengths	FWHM's	Imaging type
Specim IQ	400-1000 nm		pushbroom
Specim FX10	400-1000 nm		pushbroom
Specim FX17	1000-1700 nm		pushbroom
Specim SWIR	1000-2500 nm		pushbroom
VTT FPI "Luigi"	400-950 nm		framing
VTT FPI "Pamela"	400-950 nm		framing
VTT FPI-proto 1	400-950 nm		framing
DIY imager	400-950 nm		pushbroom
MV cameras + filters	400-950 nm		framing

You can find open spectral data on our lab's website on Zenodo: https://zenodo.org/communities/hsilab

Our laboratory consists of a group of experienced researchers with a strong motivation to develop hyperspectral imaging applications. The group has worked on hyperspectral imaging in various applications ranging from crime scene investigation and art authentication to medical imaging and remote sensing. In addition, we have developed programs and programming libraries related to hyperspectral data processing and hardware.

Collaboration

The Spectral Imaging Laboratory has good networks with research institutes in Finland and abroad. We are happy to do interdisciplinary research cooperation. For example, we can participate in your project or create a new project together. You can find our ongoing and finished projects at the bottom of the page.

The spectral imaging laboratory has good networks with research institutes in Finland and abroad. We are happy to do research cooperation with companies. For example, we can participate in your project, produce commissioned research or apply for funding for a new joint research project. You can find our ongoing and finished projects at the bottom of the page.

If you want to develop your business through new products or services and have thought about how hyperspectral imaging could be applied in your industry, we can help. We specialize in hyperspectral imaging and analysis research, as well as the latest methods of mathematical modeling, simulation and machine learning.

After the needs survey, we will provide you with an order research offer that meets your needs. In addition to this, we can teach you the basics of hyperspectral imaging. Book an appointment with us!

Professor Ilkka Pölönen

Head of Laboratory

Ilkka Pölönen

Professor

Anna-Maria Raita-Hakola

Postdoctoral Researcher

Laboratory personnel

Kimmo Riihiaho

Postdoctoral Researcher

Postdoctoral Researcher

Research projects

FireMan: Unmanned aerial systems based solutions for real-time management of wildfires

Developing disruptive AI-based technology for the fast-paced detection of wildfires and for creating situational awareness during wildfire events using autonomous unmanned aerial systems (UASs, drones).

ML4DRONE - Learning techniques for autonomous drone based hyperspectral analysis of forest vegetation

Research Council of Finland

Smart-HSI: Smart hyperspectral imaging solutions for new era in Earth and planetary observations

The Smart-HSI project develops hyperspectral instruments and data processing methods for Earth observation and planetary science missions that employ CubeSats.

Publications

Calibration, correction, and unmixing for wavelength-scanning spectral imaging of asteroids

Lind, Leevi

Analyzing Artificial Nighttime Lighting Using Hyperspectral Data from ENMAP

Deep learning-based asteroid surface temperature evaluation from disk-resolved near-infrared spectra for thermal excess correction

Spectral Imaging Laboratory

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Collaboration

Academic collaboration

Funding for collaboration projects

Theses and doctoral studies

Business collaboration

Commissioned research

Head of Laboratory

Laboratory personnel

Research projects

FireMan: Unmanned aerial systems based solutions for real-time management of wildfires

ML4DRONE - Learning techniques for autonomous drone based hyperspectral analysis of forest vegetation

Smart-HSI: Smart hyperspectral imaging solutions for new era in Earth and planetary observations

Publications

Calibration, correction, and unmixing for wavelength-scanning spectral imaging of asteroids

Analyzing Artificial Nighttime Lighting Using Hyperspectral Data from ENMAP

Deep learning-based asteroid surface temperature evaluation from disk-resolved near-infrared spectra for thermal excess correction