Embedding Multi-Order Spatial Clues for Scalable Visual Matching and Retrieval.

Matching duplicate visual contents among images serves as the basis of many vision tasks. Researchers have proposed different local descriptors for image matching, e.g., floating point descriptors like SIFT, SURF, and binary descriptors like ORB and BRIEF. These descriptors either suffer from relatively expensive computation or limited robustness due to the compact binary representation. This pape...