Method and system for retrieving specified object based on multi-feature fusion

The invention provides a method and a system for retrieving a specified object based on multi-feature fusion. The method comprises the following steps of: acquiring an image to be retrieved; carrying out a template matching between the image to be retrieved and a sample image containing the specified object based on color to determine degree of color similarity, and processing the next step if the degree of color similarity exceeds a set threshold; making a comparison on minor features between the image to be retrieved and the sample image and determining degree of similarity of the minor features, wherein the minor features include at least one of texture feature and shape feature; and finally, making a comprehensive judgment and acquiring a comprehensive degree of similarity between a retrieval object in the image to be retrieved and the specified object. The result can also be obtained by extracting minor features from a matching area of the image to be retrieved and making a comparison between the extracted minor features and minor features of the sample image containing the specified object. By a cascaded approach, a similar region between the sample image and the image to be retrieved from coarse to fine can be gradually and accurately determined, the effect of fast, efficient and accurate retrieval is achieved, and manpower and material resources are saved.