From Ramp Discontinuities to Segmentation Tree


Akbas E. , Ahuja N.

9th Asian Conference on Computer Vision, Xian, Çin, 23 - 27 Eylül 2009, cilt.5994, ss.123-134 identifier

  • Cilt numarası: 5994
  • Basıldığı Şehir: Xian
  • Basıldığı Ülke: Çin
  • Sayfa Sayısı: ss.123-134

Özet

This paper presents a new algorithm for low-level multiscale segmentation of images. The algorithm is designed to detect image regions regardless of their shapes, sizes, and levels of interior homogeneity, by doing a multiscale analysis without assuming any prior models of region geometry. As in previous work, a region is modeled as a homogeneous set of connected pixels surrounded by ramp discontinuities. A new transform, called the ramp transform, is described, which is used to detect ramp discontinuities and seeds for all regions in an image. Region seeds are grown towards the ramp discontinuity areas by utilizing a relaxation labeling procedure. Segmentation is achieved by analyzing the output of this procedure at multiple photometric scales. Finally, all detected regions are organized into a tree data structure based on their recursive containment relations. Experiments on real and synthetic images verify the desired properties of the proposed algorithm.