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Citation: Li Xiaohui, Zhou Yinqing, Wang Zulinet al. Spherical panorama creating algorithm based on curve surface mosaic[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(06): 668-671. (in Chinese)

Spherical panorama creating algorithm based on curve surface mosaic

  • Received Date: 14 Aug 2006
  • Publish Date: 30 Jun 2007
  • A novel spherical panorama creating algorithm based on curve surface mosaic was presented to achieve omni-directional scene observation at a fixed viewpoint. The work was concentrated on sphere projection, blank holes elimination, global illumination alignment and image stitching. The horizontal and vertical spherical projections were studied in detail, in which the 3-dimension spherical information was fully saved to avoid wrinkle unwrapping that occurred in traditional methods. Then a way of "inverse interpolation" was applied to eliminate image blank holes caused by discrete calculation. To reduce the great illumination differences between image sequences, a novel method of "dispersing cumulative error" was presented. The limits of traditional ways that were only for neighboring illumination alignment were released. The final mosaic on curve surface was accomplished by using a matching method based on image feature, and a smooth seamless spherical panorama was gained. The whole algorithm runs automatically, which has high performance in illumination alignment and spherical mosaic, and is valuable in practical application.

     

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