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Automatic mosaicking method for large block of orthophotos

Ai, Haibin ; Zhang, Li ; Wang, Lin

Proceedings of SPIE, the International Society for Optical Engineering, 2011, Vol.8005, p.800504-800504-8

Bellingham WA: SPIE

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  • Título:
    Automatic mosaicking method for large block of orthophotos
  • Autor: Ai, Haibin ; Zhang, Li ; Wang, Lin
  • Assuntos: Communication, education, history, and philosophy ; Exact sciences and technology ; Fundamental areas of phenomenology (including applications) ; Imaging and optical processing ; Optics ; Physics ; Physics literature and publications
  • É parte de: Proceedings of SPIE, the International Society for Optical Engineering, 2011, Vol.8005, p.800504-800504-8
  • Notas: Conference Date: 2011-11-04|2011-11-06
    Conference Location: Guilin, China
  • Descrição: In order to mosaic neighboring and partly overlapping orthophotos of a scene into one large image, the paper proposes a large block orthophoto mosaicking method. In our method, seam lines firstly are delineated through overlap areas among orthophotos according to an optimal geometrical criterion. Then a network of mosaicking is built based on these delineated seam lines, and related topology information may be easily abstracted from the mosaicking network. In the second stage of our method, each seam line is optimized again by a modified snake algorithm. The algorithm makes every seam line meet the requirements of maximum color similarity of the images and maximum texture similarity. In order to searching an optimal seam line in a large overlap area as fast as possible, a hierarchical strategy is adapted. In that way, an optimized path through the overlap area is found, where the color and texture of the two images are similar. The still remaining jumps in hue and the differences in intensity and saturation have to be leveled by smooth interpolation in the vicinity of the seam line. After having processed all overlapping areas, a large block of orthophotos are automatically merged to a final large image.
  • Editor: Bellingham WA: SPIE
  • Idioma: Inglês
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