Approximate nearest neighbor fields in video

Abstract

We introduce RIANN (Ring Intersection Approximate Nearest Neighbor search), an algorithm for matching patches of a video to a set of reference patches in real-time. For each query, RIANN finds potential matches by intersecting rings around key points in appearance space. Its search complexity is reversely correlated to the amount of temporal change, making… (More)
DOI: 10.1109/CVPR.2015.7299160

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