Leaf image retrieval using combined shape feature sets with fuzzy integral

Zhiyong Wang, Zheru Chi, Dagan Feng

Research output: Journal article publicationJournal articleAcademic researchpeer-review


In this paper, leaf image retrieval using combined three shape feature sets is presented. The shape feature sets adopted include Centroid-contour distance (CCD) curve, Moment invariants (MIs), and Angle code histogram (ACH). At first, a thinning-based method is proposed to locate possible starting points of a leaf image contour so that the approach is more computationally efficient in image matching. This starting point location method can also benefit other shape representation schemes that are sensitive to starting points. After the similarity measures of individual feature sets are computed, a fuzzy integral is employed to combine them. The fuzzy integral approach has a distinct advantage in releasing the user's burden from tuning the combination parameters required in the weighted summation approach that is time-consuming and cannot guarantee the best combination performance. Experimental results on our 830 leaf images from 83 plants (10 samples from each plant) show that our approach compared favorably with other two methods tested, the Curvature scale space (CSS) method and the Modified fourier descriptor (MFD) method.
Original languageEnglish
Pages (from-to)572-578
Number of pages7
JournalChinese Journal of Electronics
Issue number4
Publication statusPublished - 1 Oct 2003


  • Angle code histogram
  • Centroid-contour distance
  • Fuzzy integral
  • Image retrieval
  • Leaf image processing
  • Moment invariants
  • Shape features

ASJC Scopus subject areas

  • Applied Mathematics
  • Electrical and Electronic Engineering


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