Spatiotemporal inpainting for recovering texture maps of occluded building facades

IEEE Trans Image Process. 2007 Sep;16(9):2262-71. doi: 10.1109/tip.2007.903263.

Abstract

We present a technique for constructing a "clean" texture map of a partially occluded building facade from a series of images taken from a moving camera. Building regions blocked by trees, signs, people, and other foreground objects in a minority of views can be recovered via temporal median filtering on a registered image mosaic of the planar facade. However, when such areas are occluded in the majority of camera views, appearance information from other visible portions of the facade provides a critical cue to correctly complete the mosaic. In this paper, we apply a robust measure of spread to infer whether a particular mosaic pixel is occluded in a majority of views, and introduce a novel spatiotemporal timeline-based inpainting algorithm that uses appearance and motion cues in order to fill the texture map in majority-occluded regions. We describe methods for automatically training appearance-based classifiers from a coarse motion-based segmentation to efficiently recognize foreground and background patches in static imagery. Results of recovered building facades are shown for various sequences.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Algorithms*
  • Artificial Intelligence*
  • Computer Graphics
  • Facility Design and Construction / methods*
  • Image Enhancement / methods*
  • Image Interpretation, Computer-Assisted / methods*
  • Imaging, Three-Dimensional / methods*
  • Numerical Analysis, Computer-Assisted
  • Paintings
  • Pattern Recognition, Automated / methods*
  • Reproducibility of Results
  • Sensitivity and Specificity