Color Differences in a Spectral Space. - Joni Orava; Timo Jääskeläinen; Jussi Parkkinen (PICS, 2003)

Color and Image Characterization of a Three CCD Seven Band Spectral Camera. - Ana Gebejes; Joni Orava; Niko Penttinen; Ville Heikkinen; Jouni Hiltunen; Markku Hauta-Kasari (ICISP, 2014)

Natural Vision Data File Format as a New Spectral Image Format for Biological Applications. - Joji Sakamoto; Jennifer Dumont; Laure Fauch; Sarita Keski-Saari; Lars Granlund; Ilkka Porali; Joni Orava; Jouni Hiltunen; Elina Oksanen; Markku Keinänen; Markku Hauta-Kasari (ICISP, 2014)