JVRSJ Vol.13 No.3 September, 図 2 PlaceEngine を使用した位置推定の例 : フロア情報を含めて位置の推定が可能 Web 3 GPS PlaceEngine WiFi GPS GPS WiFi 図 3 GPS と WiFi による位置推
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![[4][5] 2 Sensonomy ( ) LAN 図 1 無線基地局位置推定結果 (PlaceEngine での例 ) 80 万強の無線](/docs-images/91/105261146/images/1-1.jpg "LAN アクセスポイントの位置が推定されている Wi-Fi LAN PlaceEngine [4] (www.placeengine.")
1 日本バーチャルリアリティ学会誌第 13 巻 3 号 2008 年 9 月 1 ( ) GPS IEEE802.11b/g LAN(Wi-Fi) [1-4] Wi-Fi LAN GPS GPS ( ) GPS Wi-Fi PlaceEngine [4][5] 2 Sensonomy ( ) LAN 図 1 無線基地局位置推定結果 (PlaceEngine での例 ) 80 万強の無線 LAN アクセスポイントの位置が推定されている Wi-Fi LAN PlaceEngine [4] ( (1) (2) GPS (3) 22
2 JVRSJ Vol.13 No.3 September, 図 2 PlaceEngine を使用した位置推定の例 : フロア情報を含めて位置の推定が可能 Web 3 GPS PlaceEngine WiFi GPS GPS WiFi 図 3 GPS と WiFi による位置推定の比較例 (4) 1 PlaceEngine LAN (3),(4) Web (folksonomy) Web (Web ) PlaceEngine folksonomy Sensonomy ( ) [6] 2 PlaceEngine 3 LifeLog [7] GPS [8][9] GPS, Wi-Fi WiFi ( ) 23
![4 Wi-Fi LifeTag [5][10] LifeTag LAN](/docs-images/91/105261146/images/3-2.jpg "LAN LifeTag ( GPS 10 ) 5 LifeTag")
![Flickr Photo Tourism [11] 図 5](/docs-images/91/105261146/images/3-3.jpg "行動履歴の視覚表現上 : 存在確率ヒートマップ.")
3 日本バーチャルリアリティ学会誌第 13 巻 3 号 2008 年 9 月 4 LifeTag 図 4 LifeTag 携帯型ライフロギングデバイス WiFi 位置認識技術を応用し, 携行することで利用者の精密な行動履歴情報を記録する. 4 Wi-Fi LifeTag [5][10] LifeTag LAN LAN LifeTag ( GPS 10 ) 5 LifeTag Flickr Photo Tourism [11] 図 5 行動履歴の視覚表現上 : 存在確率ヒートマップ. 下 : 多点 Fisheye 方式に基づいて存在時間分布を各領域の面積に反映させた認知地図風表現 3 LifeTag 24
4 JVRSJ Vol.13 No.3 September, 図 6 LifeTag による実世界ブックマーキング. ボタンを押した位置と時刻が行動履歴上でマーキングされる. forget-me not [12] Active Badge LifeTag ( 6) 図 7 イベントの自動抽出 : 位置履歴から, 通常の行動パターンから逸脱した部分を抽出して図示したもの * 口絵にカラー版掲載 GPS 3 ( ) ( ) 7 WiFi 25
5 日本バーチャルリアリティ学会誌第 13 巻 3 号 2008 年 9 月 IC IC 5 Wi-Fi GPS [1] Paramvir Bahl and Venkata N. Padmanabhan:RADAR:An in-building RF-based user location and tracking system, In INFOCOM (2), pp (2000) [2] Anthony LaMarca, Yatin Chawathe, Sunny Consolvo, Jeffrey Hightower, Ian Smith, James Scott, Timothy Sohn, James Howard, Jeff Hughes, Fred Potter, Jason Tabert, Pauline Powledge, Gaetano Borriello, and Bill Schilit. Place Lab: Device positioning using radio beacons in the wild. In Proceedings of Pervasive 2005 (2005) [3] locky.jp: LAN No MBL-34 (4), pp (2005) [4] PlaceEngine: WiFi 2006, pp (2006) [5] Jun Rekimoto, Takashi Miyaki, and Takaaki Ishizawa: LifeTag: Wifi-based continuous location logging for life pattern analysis. In Jeffrey Hightower, Bernt Schiele, and Thomas Strang, editors, Location- and Context-Awareness, Vol of LNCS, pp Springer (2007) [6] Jun Rekimoto : From Folksonomy to Sensonomy: Convergence of real world activities and online space. In International Symposium on Applications and the Internet (SAINT2007) keynote (2007) [7] CARPE research.microsoft.com/carpe2004. [8] Hisashi Aoki, Bernt Schiele, and Alex Pentland : Realtime personal positioning system for wearable computers, In ISWC, pp (1999) [9] M. Kourogi, T. Kurata, and K. Sakaue : A panorama-based method of personal positioning and orientation and its real- time applications for wearable computers, In ISWC2001, pp (2001) [10] When becomes Where: WiFi 2007 (2007) [11] Noah Snavely, Steven M. Seitz, and Richard Szeliski: Photo tourism: Exploring photo collections in 3D. ACM Transactions on Graphics (TOG), Vol. 25, No. 3, pp (2006) [12] Mik Lamming and Mike Flynn : Forget-me-not: Intimate computing in support of human memory. In FRIEND21 94 International Symposium on Next Generation Human Interfaces (1994) REKIMOTO Junichi 1986 NEC PlaceEngine Koozyt,Inc. ACM, MMCA if Communication Design Award 2007 ACM SIGCHI Academy 2008 BP 26
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