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Decision Making ScenarioTo identify or reject the individuals concerning the matched SRs in the proposed hierarchical matching structure, we propose a decision making scenario based on the matching results of SRs. This decision making scenario is defined so that the identification or rejection of an individual with the least number of SR matching process is carried out. For this purpose, according to matched SRs of the query in each irritation, decision making scenario determines that the SR matching process should be continued or stopped. Assume
Since the centroid of SR is the most robust point of a SR against noise and movement factors in whole of a retinal image (because the centroid is obtained by averaging all points of a region and not only border points), we use the distance between the centroids of two SRs in the query and enrolled images in the database to decide in the decision making scenario as in the following,
where
(a) (b) Fig. 8: Decision making scenario. (a) Two matched SRs in an enrolled image of the database with their centroids, (b) Two matched SRs in the query image with their centroids.
Date: 2016-04-22; view: 742
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