Abstract: A system and method for automatically detecting Anti-Steering of Roaming activity is disclosed. This method can be used by a monitoring system on a home network that continuously monitors all international MAP signaling with a visited network. Anti-Steering of Roaming is detected by estimating a number of roaming subscribers of different types, including a number of unique active roamers, a number of unique steered roamers, and a number of unique anti-steered roamers. The numbers of subscribers of the different types, either alone or in combination, are compared to threshold values. If the numbers exceed the threshold value, then the monitoring system alerts the home network that a visited network may be using Anti-Steering of Roaming technology.

Abstract: A system and method for automatically detecting Anti-Steering of Roaming activity is disclosed. This method can be used by a monitoring system on a home network that continuously monitors all international MAP signaling with a visited network. Anti-Steering of Roaming is detected by estimating a number of roaming subscribers of different types, including a number of unique active roamers, a number of unique steered roamers, and a number of unique anti-steered roamers. The numbers of subscribers of the different types, either alone or in combination, are compared to threshold values. If the numbers exceed the threshold value, then the monitoring system alerts the home network that a visited network may be using Anti-Steering of Roaming technology.

Abstract: Systems and methods are provided through which a model-based vision system for dentistry which assists in diagnosis, treatment planning and surgical simulation. The present invention includes an integrated computer vision system that constructs a three-dimensional (3-D) model of the patient's dental occlusion using an intra-oral video camera. A modified shape from shading technique, using perspective projection and camera calibration, extracts the 3-D information from a sequence of two-dimensional images of the jaw. Data fusion of range data and 3-D registration techniques develop a complete 3-D digital jaw model. Triangulation of the 3-D digital model is then performed, and optionally, a solid 3-D model is reconstructed.

Abstract: Systems and methods are provided through which a model-based vision system for dentistry which assists in diagnosis, treatment planning and surgical simulation. The present invention includes an integrated computer vision system that constructs a three-dimensional (3-D) model of the patient's dental occlusion using an intra-oral video camera. A modified shape from shading technique, using perspective projection and camera calibration, extracts the 3-D information from a sequence of two-dimensional images of the jaw. Data fusion of range data and 3-D registration techniques develop a complete 3-D digital jaw model. Triangulation of the 3-D digital model is then performed, and optionally, a solid 3-D model is reconstructed.