In this paper, a CAPTCHA is presented based on the masking characteristics of the Human Visual System (HVS). Knowing that noise can be masked by high activity regions and showing ...
We introduce novel techniques for organizing the indexing structures of how data is stored so that alterations from an original version can be detected and the changed values speci...
Michael T. Goodrich, Mikhail J. Atallah, Roberto T...
Background elimination models are widely used in motion tracking systems. Our aim is to develop a system that performs reliably under adverse lighting conditions. In particular, th...
Stewart Greenhill, Svetha Venkatesh, Geoff A. W. W...
Search engines provide search results based on a large repository of pages downloaded by a web crawler from several servers. To provide best results, this repository must be kept ...
MRI examinations may be used to monitor the progress of neurological disease. Arising structural changes can then be quantified using non-rigid registration procedures. However, ...