Spectrophotogrammetry

Spectrophotogrammetry is the combination of two complementary measurement techniques:

  • Photogrammetry, which concerns determination of the 3D geometric properties of objects from photographic images.
  • Spectrometry, which refers to the measurement of radiation intensity as a function of wavelength.

The Spectrophotogrammetry group investigates the utilisation of the 3D geometry, high-resolution photogrammetric images and object reflectance signatures in various applications related to the changing earth, such as mapping, environmental monitoring, security and climate change research. Our approach is the rigorous consideration of all aspects in the data processing chain: sensor, calibration, data collection, georeferencing and radiometric correction, object and applications. Currently we are focusing the passive sensing methods, but we are also interested in fusing passive and active methods together. We are extremely interested in co-operating with different applications.

News: 

14.11.2013 Eero Ahokas's public examination "Aspects of Accuracy, Scanning Angle Optimization, and Intensity Calibration Related to Nationwide Laser Scanning"  (the 14th of Nov. at 12 noon at the Aalto University)

20.9.2013: Lauri Markelin defends his thesis 20.9.2013 at 12 in Aalto-university (link to the thesis) http://urn.fi/URN:ISBN:978-951-711-295-6

9-10.2013: Eija Honkavaara lectures at Aalto university a course entitled "Photogrammetry in Practice".

13.9.2013: Imaging campaign using a hyperspectral camera by the small aircraft of Lentokone Vallas Oy:n in Lahti forest insect damage areas. Part of the TEKES:n MMEA-project. Co-operation: GL, Lentokuva Vallas Oy, University of Helsinki.

23.8.2013: UAV imaging using a hyperspectral camera in Lahti forest insect damage areas. Part of the TEKES:n MMEA-project. Co-operation: GL, Lentokuva Vallas Oy, University of Helsinki.

21.8.2013: UAV imaging using a hyperspectral camera in Evo forest test area. EU MetEOC project. http://www.emceoc.org/

28.6.2013: UAV imaging using a hyperspectral camera in MTT agricultural test site in Vihti. Co-operation: GL, MTT. EU MetEOC project. http://www.emceoc.org/

26.6.2013: UAV imaging using a hyperspectral camera in Sjökulla image quality test field. EU MetEOC project. http://www.emceoc.org/

25.9.2012: Water monitoring campaings using the novel hyperspectral camera at Petäjärvi in Sjökulla, Kirkkonummi. At this time the camera was installed in the small aircraft belonging to the Lentokuva Vallas Oy. Campaign belongs to the MMEA-project of TEKES. Co-operation campaign of FGI, Luode Oy and Lentokuva Vallas Oy.

21.9.2012: Group member Juha Suomalainen defended his academic dissertation "Empirical studies on multiangular, hyperspectral and polarimetric reflectance of natural surfaces"

https://helda.helsinki.fi/bitstream/handle/10138/36699/empirica.pdf?sequ...

1.9.2012: Dr Maria Gritsevich joins to the research group.

1.9.2012: New reseach project funded by Academy of Finland begins: "Electromagnetic wave scattering in a complex random medium". Principal investigator is Dos. Jouni Peltoniemi.

9-10.2012: Eija Honkavaara lectures at Aalto university a course entitled "Photogrammetry in Practice".

16.8.2012: Water monitoring UAV campaings using hyperspectral camera at Petäjärvi in Sjökulla, Kirkkonummi. Campaign belongs to the MMEA-project of TEKES. Co-operation campaign of FGI, VTT, Luode Oy and Lentokuva Vallas Oy.

6.8.2012: Our Recearcher Excellence Grant proposal "Traceable unmanned airborne vehicle (UAV) based reflectance measurements" was accepted in the EMRP-project ENV04 MetEOC.

3.7.2012: Flight campaigns with UAV and hyperspectral camera at the agricultural test site of MTT Agrifood Finland. Co-operation campaign of FGI, VTT, MTT and University of Jyväskylä.

2.7.2012: Flight campaigns with UAV and hyperspectral camera at the agricultural test site of MTT Agrifood Finland. Co-operation campaign of FGI, VTT, MTT and University of Jyväskylä.

31.5.2012: Research group purchased a novel hyperspectral light-weight hyperspectral prototype camera, suitable for light UAV platforms. Camera was developed by VTT Technical Research Center Finland.

28-May-2012: Eija Honkavaara and Lauri Markelin are delivering a EuroSDR Eduserv course "Radiometric performance of Digital Photogrammetric Cameras and Airborne Laser Scanners" jointly by the Vienna University of Technology. The course is Internet based and active in 28.5-10.6.2012. More information in http://www.eurosdr.net/eduserv10/index.htm.

28-May-2012: An UAV campaign at the MTT Agrifood Research Finland test site in Vihti. Co-operation with VTT Technical Research Center Finland, MTT Agrifood Research Finland and Unviersity of Jyväskylä. Imaging instruments are the novel lightweight CIR and hyperspectral cameras developed by the VTT. The objective is the research in precision agriculture.