Reflection and Transparency Separation Method for Outdoor Scene using EPI analysis
In this research,techniques of seperating feflections from objects in images taken outdoors are investigated. by using the space image analysis of time.space time analysis is used.
The outdoor image sequences differ from indoor sequences in the following ways:
  • Difference of depth
  • Because the speed is not constant, EPI cannot be made by the straight line of an equal velocity.
  • High dynamic range.
    Here is an example.
    Left picture: Former image, right picture: EPI image



    I used Separation that considers difference of depth and Speed correction using block match. The separation is applied to outdoor.
    Here is a Process of labeling and seperation example.
    Process of labeling


    Left picture: Transparency, right picture: Reflection



    Publications
    • Masato Takeuchi, Hiroshi Kawasaki, Katsushi Ikeuchi, "Improvement of Automatic Separation of Reflect and Transparent Layers Using Space-time Image Analysis(in Japanese).", Proceedings of the 2007 IEICE General Conference, D-11-56, p56.
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    Kawasaki Laboratory