Aerial Image Relighting: Simulating Time of Day Variations

  • Kartik Chandra
  • Neeharika Adabala
  • Kentaro Toyama
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4035)


We present a technique for simulating variations in appearance of aerial images at different sun angles. The input to the algorithm is a single aerial image with information on the orientation of surfaces in the image. The location, date, and time at which the photograph was taken are also needed by the algorithm. The appearance of the aerial image at a new sun angle is synthesized by compensating for the direct sunlight component in the original image, and then relighting the image with sunlight from the new sun position. Techniques to remove cast shadows are also described. We demonstrate our results with images, and animations of changing lighting in aerial photographs as the sun follows a trajectory across the sky.


Aerial Image Cast Shadow Outdoor Scene Circular Object Shadow Removal 
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 Berlin Heidelberg 2006

Authors and Affiliations

  • Kartik Chandra
    • 1
  • Neeharika Adabala
    • 1
  • Kentaro Toyama
    • 1
  1. 1.Microsoft Research India, ScientiaBangaloreIndia

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