Spectral images have tens or hundreds of color channels instead of the traditional three in normal RGB photographs. Thus, hyperspectral imaging allows detailed detection of  spectral properties that can be quantified and used in comparison of different treatments.

Spectral features can be linked to chemical composition and structural information of plants.  Comparison with results made by traditional measurements in metabolomics laboratory allows linking of spectral features to chemical features. Thus, spectral imaging techniques provide quantifiable information about chemical or structural characteristics of plants.

Hyperspectral imaging does not harm or even touch the sample. Thus, repeatable imaging protocolls allow, for example, monitoring of stress symtoms. Stress symptoms such as drought, pathogen infection or nutrient deficiency can be detected much earlier by hyperspectral imaging than by human eye.

Spectral imaging can produce details that are difficult to detect in a traditional photograph.Photo: Lars Granlund.


The aims are:

  • to study stress symptoms and bioindicators that can be measured optically, enabling novel tool development for promoting early detection of stress in model plants
  • to explore optimal techniques and wavelength channels by laboratory and field experiments
  • to utilize the wide wavelength range of the instruments to find out new research applications
  • to link data from spectral imaging to comprehensive destructive chemical analyses and/or physiological measurements
  • to develop fast and noninvasive indicators for plant stress condition and economically important traits
  • to create collaboration locally in Eastern Finland and world-widely, especially to Japan, to utilize imaging techniques in plant production and develop industrial applications

Spectromics Laboratory serves the research of environmental issues, global change, plant biology and forest science in both campuses of University of Eastern Finland. It creates new developments and tools for teaching and research in these areas. Regional plant production companies can utilize the services in their quality control or product development.