New image retrieval method based on convex hull of interest points
Lei Guo · Journal of Optoelectronics·laser · 2010
A new image retrieval method based on region of interest determined by interest points is presented.Interest points are detected from the scale normalized image.Then,the convex hull of interest points is calculated to extract the region of interest in the image.Color histogram and Zernike moments are used as image features to carry out retrieval.With robustness to image rotation,translation and scale,the method makes the retrieval implementation on the object level and avoids the shortcoming of traditional methods.Lots of experiments on 1000 images show that the method improves the average retrieval precision by 13%,compared with other interest points based retrieval methods.