PATTERN RECOGNITION SYSTEM

摘要

PURPOSE:To reject a recognition result accurately and to reduce erroneous recognition, by utilizing the invariability of the similarity distribution of an interdictionary similarity matrix. CONSTITUTION:A feature extraction part 1 extracts feature patterns effective for discrimination from an input pattern. The feature parameters are supplied to a collation part 3 to calculate similarity with a dictionary pattern from a dictionary memory 2 and the result is inputted to processing parts 4 and 5. The processing parts 4 and 5 find plural succeeding similarities with the input pattern except the highest-order dictionary pattern in the similarity order for the input pattern and the similarities of the high-order succeeding dictionary patterns except the highest-order of similarity with the highest-order dictionary pattern. Rejection parts 6 and 7 reject recognition results on the basis of those similarities.