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情報科学研究科 / Graduate School of Information Science

情報科学研究科 / Graduate School of Information Science

 

Recent Submissions

  • NGO, Trung Thanh; MAKIHARA, Yasushi; NAGAHARA, Hajime; MUKAIGAWA, Yasuhiro; YAGI, Yasushi (The Institute of Electronics, Information and Communication Engineers, 2014-03-01)
    Gait-based owner authentication using accelerometers has recently been extensively studied owing to the development of wearable electronic devices. An actual gait signal is always subject to change due to many factors ...
  • Iwaguchi, Takafumi; Funatomi, Takuya; Kubo, Hiroyuki; Mukaigawa, Yasuhiro (SpringerOpen, 2016-08-02)
    We aim to estimate internal slice of the scattering material by Computed Tomography (CT). In the scattering material, the light path is disturbed and is spread. Conventional CT cannot measure the scattering material because ...
  • Kitano, Kazuya; Okamoto, Takanori; Tanaka, Kenichiro; Aoto, Takahito; Kubo, Hiroyuki; Funatomi, Takuya; Mukaigawa, Yasuhiro (SpringerOpen, 2017-06-02)
    Recovering temporal point spread functions (PSFs) is important for various applications, especially analyzing light transport. Some methods that use amplitude-modulated continuous wave time-of-flight (ToF) cameras are ...
  • Tanaka, Kenichiro; Mukaigawa, Yasuhiro; Kubo, Hiroyuki; Matsushita, Yasuyuki; Yagi, Yasushi (IEEE, 2016-11-23)
    This paper describes a method for recovering appearance of inner slices of translucent objects. The appearance of a layered translucent object is the summed appearance of all layers, where each layer is blurred by a ...
  • 浅田, 繁伸; 久保, 尋之; 舩冨, 卓哉; 向川, 康博 (一般社団法人電子情報通信学会, 2016-08-01)
    古文書のように和紙に墨と筆で描かれた書画は文化遺産として保存と展示が重要であり,そのためにレプリカの作成技術の確立が求められているが,一般的なコピー機による複製では,書画がもつ光の透過性は考慮されずに独特の質感が損なわれてしまう.そこで本研究では,対象物の光学特性を忠実に再現する複製品のことを新たに光学的レプリカと呼び,その実現のためのマイルストーンとして,物体の反射率と透過率を同時に再現するレプリカの作成を目的とする.まず,あらかじめ ...
  • 石原, 葵; 久保, 尋之; 舩冨, 卓哉; 向川, 康博 (一般社団法人画像電子学会, 2018-01-25)
    本研究では,複数のプロジェクタを用いて4次元光線空間を生成する手法を提案し,これにより異なる距離に配置された複数のスクリーンにそれぞれ異なる画像を個別に表示する新たな情報提示方法を実現する.複数のプロジェクタを設置して光線を投射するとき,各スクリーンには異なるプロジェクタから発せられた複数の光線が到達するが,その組み合わせはプロジェクタとスクリーンとの位置関係に応じて異なる.そこで,我々は各スクリーンに表示したい目標画像の輝度勾配を保つ ...
  • Polvi, Jarkko; Taketomi, Takafumi; Yamamoto, Goshiro; Dey, Arindam; Sandor, Christian; Kato, Hirokazu (Elsevier, 2016-04)
    Handheld Augmented Reality (HAR) has the potential to introduce Augmented Reality (AR) to large audiences due to the widespread use of suitable handheld devices. However, many of the current HAR systems are not considered ...
  • Santos, Marc Ericson C.; Lübke, Arno in Wolde; Taketomi, Takafumi; Yamamoto, Goshiro; Rodrigo, Ma. Mercedes T.; Sando, Christian; Kato, Hirokazu (Springer Nature, 2016-01-20)
    Augmented reality (AR) has the potential to create compelling learning experiences. However, there are few research works exploring the design and evaluation of AR for educational settings. In our research, we treat AR as ...
  • Ericson, Marc; Santos, Marc Ericson C.; Almeida, Igor de Souza; Yamamoto, Goshiro; Taketomi, Takafumi; Sandor, Christian; kato, Hirokazu (Springer Nature, 2015-10-05)
    Virtual objects can be visualized inside real objects using augmented reality (AR). This visualization is called AR X-ray because it gives the impression of seeing through the real object. In standard AR, virtual information ...
  • Krichenbauer, Max; Yamamoto, Goshiro; Taketomi, Takafumi; Sandor, Christian; Kato, Hirokazu (IEEE, 2018-02-01)
    Virtual Reality (VR) Head-Mounted Displays (HMDs) are on the verge of becoming commodity hardware available to the average user and feasible to use as a tool for 3D work. Some HMDs include front-facing cameras, enabling ...
  • Hyry, Jaakko; Krichenbauer, Max; Yamamoto, Goshiro; Taketomi, Takafumi; Sandor, Christian; Kato, Hirokazu; Pulli, Petri (2017-04-01)
    Projector-camera (ProCam) systems have a potential to become popular and affordable as they can create interactive surfaces for example on tabletops, walls, household items or on a palm of a hand. The possibility that these ...
  • Taketomi, Takafumi; Uchiyama, Hideaki; Ikeda, Sei (Springer Open, 2017-06-02)
    SLAM is an abbreviation for simultaneous localization and mapping, which is a technique for estimating sensor motion and reconstructing structure in an unknown environment. Especially, Simultaneous Localization and Mapping ...
  • Zeeshan, Asghar; Niina, Keranen; 山本, 豪志朗; 武富, 貴史; Christian, Sandor; 加藤, 博一; Petri, Pulli (EAI Endorsed Transactions, 2017-09-07)
    We present a design and preliminary evaluation of novel visual guidance of a remote assistive system for the elderly to find hidden objects in a kitchen. Our system has two essential functions; 1) to update a list and ...
  • Damien Constantine, Rompapas; Aitor, Rovira; Alexander, Plopski; Christian, Sandor; 武富, 貴史; 山本, 豪志朗; 加藤, 博一; Ikeda, Sei (2017-09-18)
    Augmented Reality (AR) superimposes computer graphics (CG) onto a user’s view of the real world. A key quality problem in this field is to achieve coherence between reality and CG when the user’s eyes refocus or change ...
  • YAMAMOTO, Goshiro; SAMPAIO, Luiz; TAKETOMI, Takafumi; SANDOR, Christian; KATO, Hirokazu; KURODA, Tomohiro (The Institute of Electronics, Information and Communication Engineers, 2017-09-01)
    We present a novel method to enable users to experience mobile interaction with digital content on external displays by embedding markers imperceptibly on the screen. Our method consists of two parts: marker embedding on ...
  • Yamamoto, Goshiro; Taketomi, Takafumi; Sandor, Christian; Kato, Hirokazu; Feiner, Steven (Elsevier, 2017-06-01)
    With the ongoing introduction of wide-FOV VR head-worn displays into the consumer market, the application of VR 3D UIs to professional work environments is attracting increasing attention. One of the most conspicuous ...
  • Kato, Hirokazu; Muyazaki, Jin (Springer Nature, 2008-01-01)
    Previously, we proposed two recommendation systems—context-aware information filtering (C-IF) and context-aware collaborative filtering (C-CF)—both of which are context-aware recommendation methods. We have also shown their ...
  • Kato, Hirokazu; Sandor, Christian; Yamamoto, Goshiro; Taketomi, Takafumi (IEEE, 2015-09-23)
    Usability evaluations are important to improving handheld augmented reality (HAR) systems. However, no standard questionnaire considers perceptual and ergonomic issues found in HAR. The authors performed a systematic ...
  • Long, Qian; Alexander, Plopski; Nassir, Navab; Peter, Kazanzides (IEEE, 2018-09-06)
    Recent technical advancements support the application of Optical See-Through Head-Mounted Displays (OST-HMDs) in critical situations like navigation and manufacturing. However, while the form-factor of an OST-HMD occupies ...
  • 角田, 雅照; 秋永, 知宏; 引地, 一将; 大杉, 直樹; 柿元, 健; 門田, 暁人; 松本, 健一 (教育システム情報学会, 2010)
    It is important for software engineers to improve their skills by self-learning existing software development techniques. However, it is not easy for engineers to find out which techniques should be learned because there ...

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