We are interested in matching objects in photographs, paintings, sketches and so on; after all, humans have a remarkable ability to recognise objects in images, no matter how they are depicted. We conduct experiments in matching, and conclude that the key to robustness lies in object description. The existing literature consists of numerous feature descriptors that rely heavily on photometric p...

Brain neoplasms constitute a group of tumors with discrete differentiation grades, and therefore, course of disease and prognosis. Magnetic resonance imaging (MRI) remains the gold standard method for the investigation of central nervous system tumors. However, MRI suffers certain limitations, especially if radiation therapy or chemotherapy has been previously applied. On the other hand, given ...

This article studies the depiction of Chinese miners in the Ghanaian news website entitled Modern Ghana. A total of 87 articles comprising 43752 words were retrieved. Van Leeuwen’s (2008) theory of the representation of the social actors was utilised to examine the depiction of Chinese miners in the Ghanaian press. In this regard, six applicable tools were used and these include exclusion, role...

1 Three Uses of the Expression ‘Virtual’ In the two expressions “virtual reality” and “virtual community”, the term “virtual” has different meanings. A virtual reality is a depiction or, more generally speaking, a sensuous representation of reality that allows – mainly by means of interactivity – to experience various features of reality without actually being in contact with the reality depict...

Drug discovery projects often involve organizing compounds in the form of a hierarchical tree, where each node is a substructure fragment shared by all of its descendent nodes. A method is described for producing 2D depiction layout coordinates for each of the nodes in such a tree, ensuring that common fragments within molecular structures are drawn in an identical way, and arranged with a cons...