@InCollection{CU2010-JST,
  author = 	 {Shuichi Nishio and Norihiro Hagita and Takehiro Miyashita and Takayuki Kanda and Noriaki Mitsunaga and Masahiro Shiomi and Tatsuya Yamazaki},
  title = 	 {Sensor Network for Structuring People and Environmental Information},
  pages = 	 {367--378},
  editor = 	 {Vedran Kordic},
  booktitle = 	 {Cutting Edge Robotics 2010},
  year = 	 2010,
  month = 	 oct,
  chapter = 	 23,
  publisher = {In-Teh},
  address = 	 {Vukovar, Croatia},
  url = {http://www.intechopen.com/books/cutting-edge-robotics-2010/sensor-network-for-structuring-people-and-environmental-information},
  pdf = {http://www.intechopen.com/download/pdf/12212},
}

@Article{JRSJ2008-JST01,
  author = 	 {宮下敬宏 and 神田崇行 and 西尾修一 and 萩田紀博},
  title = 	 {施設内外の人計測と環境情報構造化プラットフォーム},
  journal = 	 {日本ロボット学会誌},
  year = 	 2008,
  volume = 	 26,
  number = 	 5,
  pages = 	 {423--426},
  month = 	 jun,
  url = {http://www.i-product.biz/rsj/Conts/Vol_26/Vol26_5j.html},
}

@Article{JIEICE-2008-Sensing,
  author = 	 {馬場口登 and 西尾修一},
  title = 	 {ネットワークロボットのセンシングとプライバシー保護技術},
  journal = 	 {電子情報通信学会学会誌},
  year = 	 2008,
  volume = 	 91,
  number = 	 5,
  pages = 	 {380--386},
  month = 	 may,
}

@InProceedings{Osaka-u-200902,
  author = 	 {西尾修一},
  title = 	 {ネットワークロボットのための人位置計測と環境情報構造化},
  booktitle = {大阪大学情報通信技術シンポジュウム 「極限コミュニケーション技術のヘテロジニアスロボティクスへの挑戦」},
  year = 	 2009,
  month = 	 feb,
  day = 25,
  address = 	 {Osaka, Japan},
}

@Article{Matsumoto2010,
  author = 	 {Yusuke Matsumoto and Toshikazu Wada and Shuichi Nishio and Takehiro Miyashita and Norihiro Hagita},
  title = 	 {Scalable and Robust Multi-People Head Tracking by Combining Distributed Multiple Sensors},
  journal = 	 {Journal of Intelligent Service Robotics},
  year = 	 2010,
  volume = 	 3,
  number = 	 1,
  pages = 	 {29--36},
   url = {http://dx.doi.org/10.1007/s11370-009-0056-5},
   doi = {10.1007/s11370-009-0056-5},
   abstract = {In this paper, we present a robust 3D human-head tracking method. 3D head positions are essential for robots interacting with people. Natural interaction behaviors such as making eye contacts require head positions. Past researches with laser range finder (LRF) have been successful in tracking 2D human position with high accuracy in real time. However, LRF trackers cannot track multiple 3D head positions. On the other hand, trackers with multi-viewpoint images can obtain 3D head position. However, vision-based trackers generally lack robustness and scalability, especially in open environments where lightening conditions vary by time. To achieve 3D robust real-time tracking, here we propose a new method that combines LRF tracker and multi-camera tracker. We combine the results from trackers using the LRF results as maintenance information toward multi-camera tracker. Through an experiment in a real environment, we show that our method outperforms toward existing methods, both in its robustness and scalability.},
}

@InProceedings{ICPR2010,
  author    = {Shuichi Nishio and
               Hiromi Okamoto and
               Noboru Babaguchi},
  title     = {Hierarchical Anomality Detection Based on Situation},
  booktitle     = {Proc. 20th International Conference on Pattern Recognition (ICPR2010)},
  year      = 2010,
  pages     = {1108-1111},
  address = 	 {Istanbul, Turkey},
  doi = {10.1109/ICPR.2010.277  },
  url = {http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5595871},
  abstract = {In this paper, we propose a novel anomality detection method based on external situational information and hierarchical analysis of behaviors. Past studies model normal behaviors to detect anomality as outliers. However, normal behaviors tend to differ by situations. Our method combines a set of simple classifiers with pedestrian trajectories as inputs. As mere path information is not sufficient for detecting anomality, trajectories are first decomposed into hierarchical features of different abstract levels and then applied to appropriate classifiers corresponding to the situation it belongs to. Effects of the methods are tested using real environment data.},
}

@InProceedings{URAI2008-JST,
  author = 	 {Yusuke Matsumoto and Toshikazu Wada and Shuichi Nishio and Takehiro Miyashita and Norihiro Hagita},
  title = 	 {Scalable Multi-People Head Tracking for Robotic Services Combining Multiple Sensors},
  booktitle = {Proc. The 5th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI2008)},
  pages = 	 {581-586},
  year = 	 2008,
  address = 	 {Seoul, Korea},
  note = {Outstanding Paper Award},
}

@InProceedings{Okamoto-PRMU-201003,
  author = 	 {岡本宏美 and 西尾修一 and 馬場口登 and 森井藤樹 and 萩田紀博},
  title = 	 {公共空間における行動の階層性に基づく非正常行動検出},
  booktitle = {電子情報通信学会技術研究報告},
  pages = 	 {175-180},
  year = 	 2010,
  volume = 	 {PRMU2009-263},
  address = 	 {鹿児島大学},
  month = mar,
  abstract = {本稿では，公共空間での行動の階層性に基づく非正常行動の検出手法を提案する．先行研究では特徴量として移動経路を用い，行動の状況依存性を考慮した状況依存型モデルを提案した. しかし，移動経路以外が非正常である行動を検出することが困難であった．そこで本手法は，先行研究による状況依存型モデルに加え，特徴量として移動経路のほか，行動のより微細な特徴や，大まかな行動パターンをとらえる階層モデルを用いることで，簡易かつ効果的に非正常行動を検出するものである．実際の駅ホームでの人物軌跡に本手法と状況依存型モデルを組み合わせ適用した結果，正常行動の識別率が80\%以上という条件下で，93.2\%の非正常行動を識別可能であった． },
}

@InProceedings{Okamoto-PRMU-200903,
  author = 	 {岡本宏美 and 西尾修一 and 馬場口登 and 森井藤樹 and 萩田紀博},
  title = 	 {移動軌跡を用いた人間関係の推定},
  booktitle = {電子情報通信学会技術研究報告},
  pages = 	 {299-304},
  year = 	 2009,
  volume = 	 {PRMU2008-285},
  address = 	 {東北工業大},
  month = mar,
}

@InProceedings{Okamoto-ROBOMEC2008,
  author = 	 {岡本宏美 and 西尾修一 and 馬場口登 and 森井藤樹 and 萩田紀博},
  title = 	 {場の状況に依存した正常行動のモデル化},
  booktitle = {ロボティクス・メカトロニクス講演会(ROBOMEC)},
  year = 	 2008,
}

@InProceedings{Okamoto-PRMU-200806,
  author = 	 {岡本宏美 and 西尾修一 and 馬場口登 and 森井藤樹 and 萩田紀博},
  title = 	 {状況依存モデルを用いた異常行動の検出},
  booktitle = {電子情報通信学会技術研究報告},
  pages = 	 {103-108},
  year = 	 2008,
  volume = 	 {PRMU2008-37},
}

@InProceedings{SI2007b,
  author = "西尾修一 and 宮下敬宏 and 萩田紀博",
  title = {多カメラシステムによる人位置計測の稼働条件に関する考察},
  booktitle = {第8回計測自動制御学会 (SICE)システムインテグレーション部門講演会},
  address = {広島国際大学},
  month = dec,
  year = 2007,
}

@InProceedings{IPSJ-kansai-okamoto,
  author = "岡本宏美 and 西尾修一 and 馬場口登 and 森井藤樹 and 萩田紀博",
  title = {場の状況による正常行動の変化の検証},
  booktitle = {情報処理学会関西支部大会},
  address = {大阪},
  month = oct,
  year = 2007,
}

@InProceedings{SICE2007,
  author = "西尾修一 and 岩井将行 and 神田崇行 and 宮下敬宏 and 萩田紀博 and 山崎達也",
  title = {人の位置計測に関する環境情報構造化プラットフォームの実現にむけて},
  booktitle = {SICE Annual Conference 2007 WS01次世代ロボット共通プラットフォーム技術},
  address = {香川},
  month = sep,
  year = 2007,
}

@InProceedings{RSJ2007,
  author = "西尾修一 and 宮下敬宏 and 神田崇行 and 山崎達也 and 萩田紀博",
  title = {施設内外でのシームレスなロボットサービスのための空間位置計測技術と環境情報構造化技術},
  booktitle = {第25回日本ロボット学会学術講演会},
  pages = {1I12},
  address = {千葉工業大学},
  month = sep,
  year = 2007,
}

@InProceedings{nishio-KJNRS2006,
  author = "Shuichi Nishio and Noboru Babaguchi and Norihiro Hagita",
  title = {Personal identification in unconscious sensing by video and GPS positioning},
  booktitle = {Proc. 2nd Korea-Japan Joint Symposium on Network Robot System (KJ-NRS2006)},
  address = {Jeju, Korea},
  month = jun,
  year = 2006,
}

@InProceedings{PRMU-200603a,
  author = "谷口英 and 西尾修一 and 鳥山朋二 and 馬場口登 and 萩田紀博",
  title = {監視カメラ映像におけるGPS端末携帯ユーザの同定と追跡},
  booktitle = {電子情報通信学会技術研究報告},
  volume = {PRMU2005-280},
  pages = {143-148},
  month = mar,
  year = 2006,
  address = {九州大学},
  url = {http://www.ieice.org/ken/paper/20060317TAJC/},
}

@InProceedings{PRMU-200603b,
  author = "小清水隆 and 鳥山朋二 and 西尾修一 and 馬場口登 and 萩田紀博",
  title = {映像サーベイランスにおけるプライバシー保護のための視覚的抽象化の提案},
  booktitle = {電子情報通信学会技術研究報告},
  volume = {PRMU2005-270},
  pages = {75-80},
  month = mar,
  year = 2006,
  address = {九州大学},
  url = {http://www.ieice.org/ken/paper/20060317hAJC/},
}