Browsing by Subject "Shape"

Now showing items 1-3 of 3

    • Cluster validity index based on n-sphere 

      Ben Said, Ahmed; Foufou, Sebti; Abidi, Mongi ( IEEE , 2014 , Conference Paper)
      In this paper, we propose a new cluster validity index (CVI) based on geometrical shape. Classic CVIs are based on a combination of separation and compactness measures and may include a measure of overlap between clusters. ...

    • Moment invariants for multi-component shapes with applications to leaf classification 

      Ben Haj Rhouma, Mohamed; Žunić, Joviša; Younis, Mohammed Chachan ( Elsevier B.V. , 2017 , Article)
      In this paper we introduce seven new invariants for multi-component shapes, and apply them to the leaf classification problem. One of the new invariants is an area based analogue of the already known boundary based anisotropy ...

    • Quantifying morphology of sands using 3D imaging 

      Alshibli Khalid A.; Druckrey Andrew M.; Al-Raoush Riyadh I.; Weiskittel Taylor; Lavrik Nickolay V. ( American Society of Civil Engineers (ASCE) , 2015 , Article)
      Particle morphology plays a significant role in influencing engineering behavior of granular materials. Surface texture, roundness, and sphericity represent distinct multiscale measures needed to fully describe particle ...