V. Atienza and J.M. Valiente (Spain)
mosaic construction, feature extraction, visual tracking, registration
This paper describes a technique for the construction of 2D mosaics and which integrates feature tracking with a direct registration procedure. An initial alignment computed from a set of feature point correspondences supplied by the tracker is subsequently refined by means of a second registering step directly based on image contents. The direct registration technique is implemented as a two-step process in order to obtain an enhanced toleration of possible inaccuracies in the feature-based estimation – without increasing computational cost. This approach enables the avoidance of more computationally expensive techniques such as pyramidal registration. Some mosaic examples are constructed to demonstrate the effectiveness of this approach.
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