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NF-Features – No-Feature-Features for Representing Non-textured Regions

  • Ralf Dragon
  • Muhammad Shoaib
  • Bodo Rosenhahn
  • Joern Ostermann
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6312)

Abstract

In order to achieve a complete image description, we introduce no-feature-features (NF-features) representing object regions where regular interest point detectors do not detect features. As these regions are usually non-textured, stable re-localization in different images with conventional methods is not possible. Therefore, a technique is presented which re-localizes once-detected NF-features using correspondences of regular features. Furthermore, a distinctive NF descriptor for non-textured regions is derived which has invariance towards affine transformations and changes in illumination. For the matching of NF descriptors, an approach is introduced that is based on local image statistics.

NF-features can be used complementary to all kinds of regular feature detection and description approaches that focus on textured regions, i.e. points, blobs or contours. Using SIFT, MSER, Hessian-Affine or SURF as regular detectors, we demonstrate that our approach is not only suitable for the description of non-textured areas but that precision and recall of the NF-features is significantly superior to those of regular features. In experiments with high variation of the perspective or image perturbation, at unchanged precision we achieve NF recall rates which are better by more than a factor of two compared to recall rates of regular features.

Keywords

Image Noise Interest Point Regular Feature Interest Point Detector Maximally Stable Extremal Region 
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 2010

Authors and Affiliations

  • Ralf Dragon
    • 1
  • Muhammad Shoaib
    • 1
  • Bodo Rosenhahn
    • 1
  • Joern Ostermann
    • 1
  1. 1.Institut fuer InformationsverarbeitungLeibniz Universitaet HannoverHannoverGermany

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