Fast construction of dynamic and multi-resolution 360° panoramas from video sequences

  • Authors:
  • Zhigang Zhu;Guangyou Xu;Edward M. Riseman;Allen R. Hanson

  • Affiliations:
  • Department of Computer Science, City College of New York, Convent Avenue and 138th Street, NY 10031, USA;Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China;Department of Computer Science, University of Massachusetts at Amherst, MA 01003, USA;Department of Computer Science, University of Massachusetts at Amherst, MA 01003, USA

  • Venue:
  • Image and Vision Computing
  • Year:
  • 2006

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Abstract

This paper presents a unified approach to automatically build dynamic and multi-resolution 360^o panoramic (DMP) representations from image sequences captured by hand-held cameras mainly undertaking rotation and zooming for natural scenes with moving targets. A simple (yet stable) rigid motion model and a closed-loop-based mosaicing algorithm are proposed to generate cylindrical mosaics automatically. Multi-resolution representations are built for interesting areas by separating zooming sub-sequences from a pan/zoom sequence. Moving objects are detected and separated from images based on motion information, and then more accurate contours are extracted using a modified active contour algorithm. The DMP construction method is fast, robust, and automatic, achieving five frames per second for image sequences with 384x288 color images on a Pentium III 800MHz PC. The construction of the DMP representation can be used in virtual reality, video surveillance, and very low bit-rate video coding.