630-0192 8916-5 E-mail: {ryuhei-t, kanbara, yokoya}@is.naist.jp PDA Nara Palace Site Navigator Mobile Tour Guide System Using Multimedia Contents Ryuhei TENMOKU Masayuki KANBARA and Naokazu YOKOYA Graduate School of Information Science, Nara Institute of Science and Technology 8916-5 Takayama-cho, Ikoma-shi, Nara, 630-0192 Japan E-mail: {ryuhei-t, kanbara, yokoya}@is.naist.jp Abstract Many human navigation systems which present location-based information to mobile device users have been developed in recent years. We have already developed a wearable tour guide system which presents location-based tour guide information using augmented reality techniques. In this research, we try to improve the previous system into a new human navigation system "Nara Palace Site Navigator" for users of multi devices. The proposed system can present tour guide information according to the specifications of the user s devices: wearable computer, personal digital assistant (PDA), and cellular phone. This paper describes the experiments using the proposed system in the Nara palace site to show the feasibility of the proposed system. Keyword Human navigation Wearable computer Mobile device Augmented reality Multimedia contents 1. GPS PDA [1, 2] [3, 4, 5, 6] PDA Cheverst GUIDE [7] Oppermann HIPS [8] Baus VR REAL [9] PC Höllerer MARS [10, 11, 12] AR [13] Stricker
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(a) (b) (c) (d) (e) (f) (g) (h) (i) (j) 図 6 平 城 宮 跡 に お け る 観 光 案 内 画 像 提 示 例 と更新にかかった時間を示す 実験では ネットワー 5. ま と め と 今 後 の 課 題 ク状態の悪化により ウェブマップの更新にさらに時 本稿では デジタルコンテンツを利用した観光案内 間がかかることも見受けられた 提案システムでは システム 平城宮跡ナビ の提案を行った 提案シス ユーザは歩行者を想定しているので ネットワーク遅 テムでは 屋外の観光地においてユーザの位置に応じ 延と更新レートの低さは 位置情報の送信および位置 た観光案内コンテンツをユーザの持つ端末や位置情報 情報に応じたウェブマップの更新に大きな影響を及ぼ をもとにサーバから獲得し ユーザに提示する また さない しかし ウェブマップにユーザの姿勢情報を 本稿では プロトタイプシステムを用いて平城宮跡に 反映させ ヘッドアップのウェブマップを生成するこ おいてユーザに観光案内画像の提示を行う実験につい とには大きな影響を与える これは無線ネットワーク て述べた や携帯電話の通信機能を利用した従来のヒューマンナ 本研究の今後の課題として さらに有用性の高いュ ビゲーションシステムにも共通の問題であるが 今後 ーマンナビゲーションシステムへの改良が挙げられる 改善策を検討する必要があると考えられる 現 在 の シ ス テ ム で は ユ ー ザ の 持 つ 端 末 を CP タ イ プ
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