Digital geometry is about deriving geometric information from digital pictures. The field
emerged from its mathematical roots some forty-years ago through work in computer-based …

Mesh partitioning and skeletonisation are fundamental for many computer graphics and
animation techniques. Because of the close link between an object's skeleton and its …

The last half century has seen the development of many biological or physical t-ories that
have explicitly or implicitly involved medial descriptions of objects and other spatial entities …

A distance-driven method to compute the surface and curve skeletons of 3D objects in voxel
images is described. The method is based on the use of the<; 3, 4, 5>; weighted distance …

Medial descriptions, such as shock graphs, have gained significant momentum in the shape-
based object recognition community due to their invariance to translation, rotation, scale and …

In this paper, we propose a novel mesh-decomposition scheme called" visual salience-
guided mesh decomposition". The concept of" part salience", which originated in cognitive …

This paper presents a novel shape representation algorithm based on mathematical
morphology. It consists of two steps. Firstly, an input shape is decomposed into a union of …

This dissertation describes a general algorithm that automatically decomposes real-world
scenes and objects into visual parts. The input to the algorithm is a 3D triangle mesh that …

Lots of noises and heterogeneous objects with various sizes coexist in a complex image,
such as an ore image; the classical image thresholding method cannot effectively …

ACTA UNIVERSITATIS UPSALIENSIS Uppsala Dissertations from the Faculty of Science and
Technology 79 Page 1 ACTA UNIVERSITATIS UPSALIENSIS Uppsala Dissertations from the …