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Region-Based Image Retrieval Revisited
Ryota Hinami, Yusuke Matsui, Shin'ichi Satoh
Region-based image retrieval (RBIR) technique is revisited. In early attempts at RBIR in the late 90s, researchers found many ways to specify region-based queries and spatial relat…
PQk-means: Billion-scale Clustering for Product-quantized Codes
Yusuke Matsui, Keisuke Ogaki, Toshihiko Yamasaki +1
Data clustering is a fundamental operation in data analysis. For handling large-scale data, the standard k-means clustering method is not only slow, but also memory-inefficient. We…
PQTable: Non-exhaustive Fast Search for Product-quantized Codes using Hash Tables
Yusuke Matsui, Toshihiko Yamasaki, Kiyoharu Aizawa
In this paper, we propose a product quantization table (PQTable); a fast search method for product-quantized codes via hash-tables. An identifier of each database vector is associa…