Abstract:

In allusion to the issue of automated extraction of fabric pattern continuity features, the pattern continuity was disposed into two factors including repeat angle and unit span, and the relationship between these two factors and the slice similarity of pattern was analyzed respectively by dimension reduction approach thus a similarity space formed as a result, and the correspondence between the extreme points in the similarity space and the continuity factors was revealed. Further inspection was carried out into the conjugacy of repeat angles, and in the similarity space discovered were the conjugate angles which formed the basis for identifying four-consecutive patterns. In the observation experiments, the inclination of human eyes in recognizing the repeat angle of four-consecutive pattern was investigated and the maximum similarity rule that the inclination followed was clarified, and the optimal conjugate angles were proposed to match the judgement of inclination. In comparison with subjective judgements this method demonstrated a good accuracy in identifying pattern continuity.

Key words: fabric pattern, four-consecutive, similarity, conjugate