In the scale for the picture identification robustness the identifier which is based on feature

摘要

The method of guiding the picture identifier includes with the fact that scale spatial expression of the picture is guided and processing that scale spatial expression, the fact that it detects the plural feature points which possess the value which is maximum value or minimum value. As for expression, one among the plural feature points which are detected or concerning the picture territory of the scale dependence which in plural relation it is guided is attached. With one execution form, as for size of the picture territory, it depends on the scale which in the feature point which corresponds relation is attached. The picture identifier is guided using the expression which is guided concerning the picture territory of scale dependence. It can use this picture identifier, in the method of comparing the picture.