| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a specific-colored object to be identified efficiently by reducing a processing load, in the case that the color of the object is already known.SOLUTION: An image recognition method comprises: first obtaining a color attribute of a retrieval target from a query image to select a recognition dictionary corresponding to a color component based on the obtained color attribute; next extracting a partial area of an image input from a camera to calculate a color gradient from an image of the extracted partial area, and at this time calculating the color gradient for only the color component relating to the retrieval target of the query image to obtain a feature quantity; and collating the feature quantity with the recognition dictionary corresponding to the color component to determine whether the partial area is the retrieval target or not.</p> |
