Beyond Bag of Features: Adaptive Hilbert Scan Based Tree for Image Retrieval
Publisher: Association of Scientists, Developers and Faculties
Published: 2016
Place of publication: Tiruppur, Tamil Nadu, India
Language: eng
ISBN-13: 9788192986647
Description: One fundamental problem in large scale image retrieval with the bag-of-features is its lack of spatial information, which affects accuracy of image retrieval. Depending on distribution of local features in an image, we propose a novel adaptive Hilbert-scan strategy which computes weight of each path at increasingly fine resolutions. Owing to merits of this strategy, spatial information of object will be preserved more precisely at Hilbert order. Extensive experiments on Caltech-256 show that our method obtains higher accuracy.