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2D Structural Descriptions for Video Handling

  • H. Morikawa
  • H. Harashima
Conference paper
Part of the CG International Series book series (CGIS)

Abstract

We describe an approach to obtain 2D structural descriptions — 2D shape, motion, spatial relation, and relative depth of each region — from image sequences, and demonstrate some of the unique manipulations possible upon real scenes using the derived 2D structural descriptions. To obtain such 2D structural descriptions, we present an analysis-by-synthesis-based incremental segmentation scheme which includes dynamic occlusion analysis to determine relative depth of several objects. We then present computer-graphics-style manipulations upon real scenes using the derived 2D structural descriptions, including video composition, focus simulation, and lightning variation, and suggest that the use of the 2D structural descriptions would open up many new creative and communicative possibilities.

Keywords

Motion Estimation Segmentation Result Object Boundary Relative Depth Image Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Tokyo 1992

Authors and Affiliations

  • H. Morikawa
    • 1
  • H. Harashima
    • 1
  1. 1.Department of Electrical EngineeringThe University of TokyoBunkyo-ku, Tokyo, 113Japan

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