研究者詳細 - 阿部　匡伸

論文 - 阿部　匡伸

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転倒転落事故予防に向けた入院患者の起き上がり動作分析査読

茂木学, 平澤桂一, 松村成宗, 山田智広, 武藤伸洋, 金丸直義, 下倉健一郎, 阿部匡伸, 大久保由美子, 森田佳子, 葛西圭子, 山元友子, 落合慈之

医療の質・安全学会誌 4 ( 1 ) 86 - 94 2009年5月

Preferred Color Reproduction Based on Personal Histogram Transformation 査読

Kenji Hara, Atsuhiko Maeda, Hirohito Inagaki, Minoru Kobayashi, Masanobu Abe

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 55 ( 2 ) 855 - 863 2009年5月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

We propose a facial color beautification method for video communication. The video-captured Ace often disappoints its, especially the subjects themselves, because the lighting environment is often poor. Inadequate lighting makes the face look depressed or tired. The best solution is illuminating the face directly with good light, but it is, not always possible to realize the perfect environment in everyday situations. Our solution is to retouch the captured video. Our method identifies the distribution of skin color and the eye luminance of a detected face, and converts the color distribution of the entire image by histogram tran formation. This method provides three strong points, which are 1) converting video in real-time, 2) beautifying the facial color even if it is captured under inadequate light, and 3) creating a variety of face "styles" by controlling the transformation parameters. We conduct a computational performace evaluation, which shows that our method provides real-time video processing performance. Moreover, we also conduct a user study to reveal the diversity of user preferences and the method's effectiveness in terms of impression improvement. The user study indicates that our method is effective even though user preferences vary widely.(1)

DOI： 10.1109/TCE.2009.5174466

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A Place Prediction Algorithm Based on Time-Sensitive Frequent Patterns 査読

M. Nishino, S. Seko, T. Yamada, M. Motegi, S. Muto, M. Abe

Proc. Pervasive 2009 2009年5月

An Ontological Approach to Lifelog Representation for Disclosure Control 査読

Truong Thi Thu Hien, Shin-ichiro Eitoku, Tomohiro Yamada, Shin-yo Muto, Masanobu Abe

ISCE: 2009 IEEE 13TH INTERNATIONAL SYMPOSIUM ON CONSUMER ELECTRONICS, VOLS 1 AND 2 932 - 936 2009年5月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

In services using lifelog collected continuously and over a long period of time, disclosure control is essential in order to deal with the privacy because this lifelog includes confidential information which users are unwilling to disclose freely. This paper proposes an ontology model for disclosure control needed to handle each user's lifelog. The user is able to easily set disclosure rules on his/her diverse data collected from various data sources. Features of the proposed model are as follows: (1) Values can be differentiated by their context, (2) Various time expressions can be handled and (3) Disclosure attribute is set on each lifelog item (fine-grained control). We show an example of implementation and the result of experiments using an implemented system.

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An Algorithm to Estimate the Level of Friendship Based on the Mode of Transportation and the Time Spent Sharing Movement Tracks 査読

S. Seko, M. Nishino, M. Motegi, T. Yamada, S. Muto, M. Abe

Proc. Pervasive 2009 2009年5月

Arrow Tag: A Direction-Key-Based Technique for Rapidly Selecting Hyperlinks While Gazing at a Screen 査読

Atsuhiko Maeda, Hirohito Inagaki, Masanobu Abe

CHI2009: PROCEEDINGS OF THE 27TH ANNUAL CHI CONFERENCE ON HUMAN FACTORS IN COMPUTING SYSTEMS, VOLS 1-4 1025 - 1028 2009年4月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：ASSOC COMPUTING MACHINERY

Television sets and video game consoles equipped with a web browser have appeared, and we are now able to browse web pages on television screens. However, existing navigation techniques are too difficult in this situation. In this paper, we propose Arrow Tag,, a new link selection technique for web browsers on TV. In this technique, sequences of arrow signs called Arrow Tags are assigned to the links of the web pages, so users can select the links by pushing the four direction keys a few times, while keeping her/his gaze fixed on the television screen. User studies show that At-row Tag significantly outperforms the conventional techniques of Focus Move and Number Tag. Moreover, most participants preferred Arrow Tag over either Focus Move or Number Tag.

DOI： 10.1145/1518701.1518857

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A Life Log Collector Integrated with a Remote-Controller for Enabling User Centric Services 査読

Masanobu Abe, Yuji Morinishi, Atsuhiko Maeda, Masakatsu Aoki, Hirohito Inagaki

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 55 ( 1 ) 295 - 302 2009年2月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

In this paper, we propose a life logger integrated with a remote controller, which is a personal device. It uses several sensors to collect the history of the user's control of consumer appliances as well as his/her actions, stores all data in real time before sending it to PCs or servers, and is small enough to carry at all times. The aim of data integration is to acquire the user's context from his/her actions; personalised services are then provided that suit the context. We develop a prototype and evaluate its performance. The prototype uses Arrow Tags to act as a remote controller for Internet surfing via a TV screen; we designed Arrow Tags to allow the easy selection of any link currently shown by pushing the direction keys, the user can keep his/her gaze fixed on the television screen. Experiments show that Arrow Tag makes it possible for users to easily and comfortably select web page links. To support context mining, the prototype uses our algorithm that can estimate transportation modes from the outputs of GPS and acceleration sensors. Tests show that transportation mode estimation is about 95% accurate. Judging from the experiments results, we can conclude that the life logger, integrated with a remote controller, has the potential to stimulate the development of many context-aware services(1).

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Coool: A Life Log Collector Integrated with a Remote-Controller for Enabling User Centric Services 査読

Masanobu Abe, Yuji Morinishi, Atsuhiko Maeda, Masakastu Aoki, Hirohito Inagaki

2009 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS ( P.2-3 ) 27 - 28 2009年1月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

We aim to provide services that properly take account of the user's interests and/or profile. To achieve this goal, we propose a new device that collects the user's actions and sends them to a PC to be stored as a life log for estimating the user's interests and/or profile. Based on the idea that the user's interaction with consumer electronic appliances provides important information about the user's interests, the device includes a remote controller and several sensors. Experiments show that the device offers good performance both as a remote controller and as a life log collector.

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Intuitive Appliance Control System with ID Acquisition 査読

Yoshio Nakadai, Toshiharu Morizumi, Ushio Shibusawa, Youichi Takashima, Masanobu Abe

2009 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS ( 3.1-3 ) 203 - 204 2009年1月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

This paper describes an appliance control system that uses the IDs of the user and the appliances. The system uses knowledge of appliance functionality and the user's need to simplify and unify the control processes performed by the user. Usability experiments conducted on a presentation system show the advantage of the system.

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脈拍数の時間変化特徴量を用いた平常/非平常状態判定法の高度化(ライフログ活用技術,オフィス情報システム,マルチメディアシステム,マルチメディア通信,IP放送/映像伝送,一般)

村山卓弥, 手塚博久, 武藤伸洋, 阿部匡伸

映像情報メディア学会技術報告 33 91 - 96 2009年

記述言語：日本語出版者・発行元：一般社団法人映像情報メディア学会

著者らは,ライフログの種類によらない汎用的なラベル(平常/非平常)を新たに提案し,サービスの種類の増大や質の向上を目指している.本報告では,脈拍数を例として,特定時間区間における脈拍数の平均値や分散値に加え,直線近似における傾き成分の持続時間や周波数成分といった時系列的特徴量を用いて平常/非平常状態の判定法を検討し,複数人を対象とした実験データを用いてその判定法の評価を行った.その結果,脈拍数の時系列の減少傾向を新たな特徴量とすることでラベリングの精度が向上することを確認した.

DOI： 10.11485/itetr.33.37.0_91

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Easy-setup eye movement recording system for human-computer interaction 査読

Manh Duong Phung, Quang Vinh Tran, Kenji Hara, Hirohito Inagaki, Masanobu Abe

RIVF 2008 - 2008 IEEE International Conference on Research, Innovation and Vision for the Future in Computing and Communication Technologies 292 - 297 2008年7月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Tracking the movement of human eyes is expected to yield natural and convenient applications based on human-computer interaction (HCI). To implement an effective eye-tracking system, eye movements must be recorded without placing any restriction on the user's behavior or user discomfort. This paper describes an eye movement recording system that offers free-head, simple configuration. It does not require the user to wear anything on her head, and she can move her head freely. Instead of using a computer, the system uses a visual digital signal processor (DSP) camera to detect the position of eye corner, the center of pupil and then calculate the eye movement. Evaluation tests show that the sampling rate of the system can be 300 Hz and the accuracy is about 1.8 °/s. ©2008 IEEE.

DOI： 10.1109/RIVF.2008.4586369

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Support Vector Machineを使ったモーラ列からの日本語姓名のアクセント推定査読

中嶋秀治, 永田昌明, 浅野久子, 阿部匡伸

電子情報通信学会論文誌. D-II J88-D2 ( 3 ) 480 - 488 2005年3月

Say-as Classification for Alphabetic Words in Japanese Texts 査読

H. Asano, M. Nagata, M. Abe

Proc. European Conf. on Speech Communication and Technology (EuroSpeech) 2003 3181 - 3184 2003年9月

Estimating Japanese Word Accent from Syllable Sequence using Support Vector Machine 査読

H. Nakajima, M. Nagata, H. Asano, M. Abe

Proc. European Conf. on Speech Communication and Technology (EuroSpeech) 2003 2681 - 2684 2003年9月

A bilingual speech design tool: Sesisgn2001 査読

M. Abe, O. Mizuno, T. Shinozaki, H. Mizuno, S. Nakajima

Proc. 4th Speech Synthesis Workshop, 17 - 21 2001年9月

音声デザインツールSesign 査読

阿部匡伸, 水野秀之, 水野理, 野田喜昭, 高橋敏, 中嶌信弥

電子情報通信学会論文誌. D-II J84-D-II ( 6 ) 927 - 935 2001年6月

A Japanese TTS system based on multiform units and a speech modification algorithm with harmonics reconstruction 査読

S Takano, K Tanaka, H Mizuno, M Abe, S Nakajima

IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING 9 ( 1 ) 3 - 10 2001年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

This paper proposes a new text to-speech (TTS) system that utilizes large numbers of speech segments to produce very natural and intelligible synthetic speech. There are two innovations; new multiform synthesis units and a new speech modification algorithm based on a vocoder that offers harmonics reconstruction. The multiform units make it possible to reduce acoustic discontinuities at concatenation points and unnatural sound by preparing synthesis units with various lengths and various F-0 contours. The new speech modification algorithm, on the other hand, improves the quality of prosody modified speech. This algorithm is extremely effective in synthesizing speech whose prosodic parameters are quite different from those of synthesis units. Listening tests confirm that the new synthesis units yield speech with high intelligibility and naturalness, and that the new speech modification algorithm is superior to all other conventional vocoders and waveform domain algorithms including TD-PSOLA, especially when modifying the F-0 frequency upward.

DOI： 10.1109/89.890065

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A new Japanese TTS system based on speech-prosody database and speech modification 査読

M. Isogai, K. Tanaka, S. Takano, H. Mizuno, M. Abe, S. Nakajima

Proc. Int. Conf. on Spoken Language Processing (ICSLP) 2000 2000年9月

基本周波数の変更量に応じてスペクトル包絡を変形する音声合成方式査読

田中公人, 阿部匡伸

電子情報通信学会論文誌. D-II J83-D-II ( 8 ) 1722 - 1732 2000年8月

A new communication paradigm; Action-to-Speech 査読

M Abe, T Shinozaki

2000 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, PROCEEDINGS VOLS I-III 257 - 260 2000年8月

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

In this paper, we propose a new technology that enhances the communication ability of human beings. We call it Action-to-Speech (A2S). A2S generates speech from actions or gestures and makes it possible for people who speak different languages or the speaking impaired to communicate. Features of A2S are as follows. (1) Because meanings are defined by mapping functions between action and speech, it is easy for the system to handle new languages. (2) Because prosodic characteristics of speech can be controlled in real time, smooth communication is possible. (3) Because sensors capture actions, reliable responses are guaranteed. A prototype system was developed. Evaluations indicate that A2S makes it possible for persons speaking different languages to easily and effectively communicate.

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