CREATION OF PANORAMIC AERIAL PHOTOGRAPH ON THE BASIS OF MULTIBAND MIXING
M. N. Favorskaya, A. I. Pakhirka, A. G. Zotin, V. V. Buryachenko
Siberian State University of Science and Technology, 660037, Krasnoyarsk, prosp. im. gazety ”Krasnoyarskii Rabochii”, 31
Keywords: аэрофотоснимок, панорама, точечные дескрипторы, выравнивание освещённости, многополосное смешивание, aerial photograph, panorama, point descriptors, illumination levelling, multiband mixing
Abstract
A panoramic aerial photograph composed of a series of consecutive images obtained from a pilotless aircraft allows for more accurate recognition of visual objects. Automatic joining of aerial photographs is a complex technical problem, especially in the presence of artefacts of the recording equipment and video-recording conditions. It is believed that a sequence of joined images is known and determined by the flight trajectory. The proposed method for joining aerial photographs is based on illumination levelling and multiband mixing. The possibilities of application of SURF, FAST, FAST-ER, and KAZE point descriptors for joining images are studied. It is shown that the point descriptors on the basis of nonlinear diffuse filtering yield the best results with regard to accuracy in the presence of global and/or local visual distortions of joined images.
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