The BD-Tree - A New N-Dimensional Data Structure with Highly Efficient Dynamic Characteristics. - Yutaka Ohsawa; Masao Sakauchi (IFIP Congress, 1983)

A New Interactive Geographical Information System Based on Effective Image-Type Map Representation. - Masao Sakauchi; Yutaka Ohsawa (IFIP Congress, 1983)

An n-dimensional region data management system using combined tree structures. - Yutaka Ohsawa; Masao Sakauchi (Syst. Comput. Jpn., 1985)

Pattern Data representation and management in image database systems. - Masao Sakauchi; Yutaka Ohsawa (Syst. Comput. Jpn., 1986)

A new line data management structure suitable for geometrical retrievals based on spatial relations. - Yutaka Ohsawa; Masao Sakauchi (Syst. Comput. Jpn., 1987)

MD-tree: a balanced hierarchical data structure for multidimensional data with highly efficient dynamic characteristics. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (ICPR, 1988)

A New Tree Type Data Structure with Homogeneous Nodes Suitable for a Very Large Spatial Database. - Yutaka Ohsawa; Masao Sakauchi (ICDE, 1990)

Data structures for multilayer N-dimensional data using hierarchical structure. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (ICPR (2), 1990)

Drawing image understanding framework using state transition models. - Shin'ichi Satoh 001; Yutaka Ohsawa; Masao Sakauchi (ICPR (1), 1990)

Data Structure for Multilayer N-Dimensional Data Using Hierarchical Structure. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (Syst. Comput. Jpn., 1990)

Efficient Hierarchical Structures for Spatial Objects: MD-Tree and RMD-Tree. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (Future Databases, 1992)

A color video image quantization method with stable and efficient color selection capability. - Yihong Gong; Heitou Zen; Yutaka Ohsawa; Masao Sakauchi (ICPR (3), 1992)

An efficient data management method for spatial objects using MD-tree-experimental evaluation and comparisons. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (ICPR (3), 1992)

RMD-tree: A hierarchical data structure for multidimensional nonzero size spatial objects using MD-tree. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (Syst. Comput. Jpn., 1992)

An object-oriented kernel for geographical information systems. - Ying Ming Lin; Takeshi Sagara; Yutaka Ohsawa; Masao Sakauchi (ICDAR, 1993)

A Balanced Hierarchical Data Structure for Multidimensional Data with Highly Efficient Dynamic Characteristics. - Yasuaki Nakamura; Shigeru Abe; Yutaka Ohsawa; Masao Sakauchi (IEEE Trans. Knowl. Data Eng., 1993)

A Kernel System for 3D GIS Applications. - Ying Ming Lin; Yutaka Ohsawa; Masao Sakauchi (MVA, 1994)

A Method to Fuse Two Kinds of Digital Road Maps. - Yutaka Ohsawa; Masako Miyazaki (ICMCS, 1996)

A Spatiotemporal Data Management Method Using Inverse Differential Script. - Yutaka Ohsawa; Kyungwol Kim (ER Workshops, 1998)

Patch-based BTF synthesis for real-time rendering. - Hiroshi Kawasaki; Kyoung-Dae Seo; Yutaka Ohsawa; Ryo Furukawa 001 (ICIP (1), 2005)

Dense 3D Reconstruction with an Uncalibrated Active Stereo System. - Hiroshi Kawasaki; Yutaka Ohsawa; Ryo Furukawa 001; Yasuaki Nakamura (ACCV (2), 2006)

Separation of Reflection and Transparency Using Epipolar Plane Image Analysis. - Thanda Oo; Hiroshi Kawasaki; Yutaka Ohsawa; Katsushi Ikeuchi (ACCV (1), 2006)

The separation of reflected and transparent layers from real-world image sequence. - Thanda Oo; Hiroshi Kawasaki; Yutaka Ohsawa; Katsushi Ikeuchi (Mach. Vis. Appl., 2007)

Real-Time Monitoring of Moving Objects Using Frequently Used Routes. - Yutaka Ohsawa; Kazuhisa Fujino; Htoo Htoo; Aye Thida Hlaing; Noboru Sonehara (DASFAA (2), 2011)

Single-Source Multi-Target A* Algorithm for POI Queries on Road Network. - Htoo Htoo; Yutaka Ohsawa; Noboru Sonehara (WAIM Workshops, 2011)

Aggregate Nearest Neighbor Search Methods Using SSMTA* Algorithm on Road-Network. - Htoo Htoo; Yutaka Ohsawa; Noboru Sonehara; Masao Sakauchi (ADBIS, 2012)

Sequenced Route Query in Road Network Distance Based on Incremental Euclidean Restriction. - Yutaka Ohsawa; Htoo Htoo; Noboru Sonehara; Masao Sakauchi (DEXA (1), 2012)

Optimal Sequenced Route Query Algorithm Using Visited POI Graph. - Htoo Htoo; Yutaka Ohsawa; Noboru Sonehara; Masao Sakauchi (WAIM, 2012)

Shortest Path Finder with Light Materialized Path View for Location Based Services. - Aye Thida Hlaing; Htoo Htoo; Yutaka Ohsawa; Noboru Sonehara; Masao Sakauchi (WAIM, 2013)

Incremental Single-Source Multi-Target A* Algorithm for LBS Based on Road Network Distance. - Htoo Htoo; Yutaka Ohsawa; Noboru Sonehara; Masao Sakauchi (IEICE Trans. Inf. Syst., 2013)

Efficient Reverse kNN Query Algorithm on Road Network Distances Using Partitioned Subgraphs. - Aye Thida Hlaing; Htoo Htoo; Yutaka Ohsawa (ER Workshops, 2014)

Generalized Bichromatic Homogeneous Vicinity Query Algorithm in Road Network Distance. - Yutaka Ohsawa; Htoo Htoo; Naw Jacklin Nyunt; Myint Myint Sein (ADBIS (Short Papers and Workshops), 2015)

Bichromatic Reverse kNN Query Algorithm on Road Network Distance. - Tin Nilar Win; Htoo Htoo; Yutaka Ohsawa (WAIM, 2015)

RkNN Query on Road Network Distances. - Aye Thida Hlaing; Tin Nilar Win; Htoo Htoo; Yutaka Ohsawa (J. Inf. Process., 2015)

Continuous Trip Route Planning Queries. - Yutaka Ohsawa; Htoo Htoo; Tin Nilar Win (ADBIS, 2016)

Versatile Safe-Region Generation Method for Continuous Monitoring of Moving Objects in the Road Network Distance. - Yutaka Ohsawa; Htoo Htoo (DASFAA Workshops, 2016)

Top-k Sequenced Route Queries. - Yutaka Ohsawa; Htoo Htoo (MDM, 2017)

Safe-Region Generation Methods for Continuous Trip Route Planning Queries. - Yutaka Ohsawa; Htoo Htoo; Tin Nilar Win (Informatica, 2017)

Safe-Region Generation Method for Versatile Continuous Vicinity Queries in the Road Network Distance. - Tin Nilar Win; Htoo Htoo; Yutaka Ohsawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)