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Volume 23 (2006)
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Volume 23, Issue 4
Displaying 1-13 of 13 articles from this issue
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Itiro SIIO, Masashi TOYODA, Yasuyuki SUMI2006 Volume 23 Issue 4 Pages 4_1-4_2
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSDownload PDF (28K) -
Takeo IGARASHI2006 Volume 23 Issue 4 Pages 4_3-4_13
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSSketching interfaces are getting popular in user interface and graphics research community. They are expected to be effective for creative exploration in the early stages of intellectual activities. This paper reports on the recent trends in such sketching interfaces. We first describe basic recognition techniques and interaction techniques for sketching systems. We then introduce some representative application systems both in 2D and 3D domains. We also discuss some design issues to build effective sketching systems.View full abstractDownload PDF (485K) -
Kazutaka KURIHARA, Takeo IGARASHI, Ken ITO2006 Volume 23 Issue 4 Pages 4_14-4_25
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSThis paper presents a presentation tool that allows the user to prepare the material and present it to the audience using pen-based computers in a unified interface. Computer-aided presentation is becoming popular, but there still are situations where exisiting presentation tools are not very popular, for example lecturing at schools. We investigated the reasons and identified two problems. One is that it is difficult for inexperienced computer users to create slides using keyboard and mouse and the other is that it is difficult to flexibly modify the contents or the flow of talk during presentation. To address these problems, we propose a pen-based presentation tool “KOTODAMA,” which is designed for pen-based editing in both preparation phase and presentation phase. The system allows inexperienced computer users to prepare the matrial using simple handwriting and provides basic beautification functions. The system also allows the user to edit the material by simple handwriting and to change the flow of the presentation on the fly. We performed a two-year longitudinal user study in elementary, junior-high, and high school classrooms to assess the effectiveness of our system. We obtained the users' feedbacks and design implications that are nesessary for developing practical presentation tools in such fields.View full abstractDownload PDF (303K) -
Kentarou FUKUDA, Hironobu TAKAGI, Junji MAEDA, Shin SAITO, Chieko ASAK ...2006 Volume 23 Issue 4 Pages 4_26-4_35
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSRecently, the World Wide Web has become a new social infrastructure. The Web also has an important role as a new source of information for persons with disabilities or senior citizen, since they can get all kinds of information all by themselves through the Web. Accessibility-related regulations and guidelines are contributing to the steady improvement of Web accessibility. There are various evaluation tools, and they also help Web authors make their pages compliant with guidelines. However, their effects are limited because their syntactic checking is insufficient to evaluate the accessibility and usability of the Web pages. Therefore, we developed a disability visualizer “aDesigner”. It has functions to simulate two disabilities, low vision and blindness, and it can automatically detect usability problems. By using the usability evaluation functions of aDesigner, we summarize the historical transition of Web usability for blind people.View full abstractDownload PDF (490K) -
Itiro SIIO, Reiko HAMADA, Noyuri MIMA2006 Volume 23 Issue 4 Pages 4_36-4_46
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSA kitchen is a place of food production, education, and communication. As it is more active place than other parts of a house, there are lot of potential ubiquitous computing applications in a kitchen. We are developing a computer-augmented kitchen environment: the Kitchen of the Future that embeds various computing elements into a standard kitchen unit. In this paper, we will describe overview of the Kitchen of the Future system and its three applications, i.e, web-ready recipe pages generator, video conference system for cooking instruction, and interactive cooking navigation system.View full abstractDownload PDF (304K) -
Shigeru OWADA2006 Volume 23 Issue 4 Pages 4_47-4_50
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSWe present the jello printer, a system that enables printing of objects using jello. To our knowledge, this is the first work that presents a working system for printing food data in a tangible and edible manner. Our current implementation allows the user to easily deform and cut a shape of jello to facilitate browsing, as well as for tasting. In addition, it is possible to model 3D height fields using our system, so that a user can specify arbitrary cross-sections to explore 3D structure interactively.View full abstractDownload PDF (156K) -
Yoshinari TAKEGAWA, Tsutomu TERADA, Shojiro NISHIO2006 Volume 23 Issue 4 Pages 4_51-4_59
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSFingering is one of important aspects in piano performances because it affects pianists' musicality. If audience, especially pianists, share the real-time fingering of the performer in a concert, they feel sense of togetherness and it helps them for learning professional piano performances. In response to these requirements, the goal of our study is to construct a real-time fingering detection system for pianists. Our system achieves the real-time fingering detection by integrating a simple camera-based image detection and musical rules. We have developed a prototype system, and evaluated its effectiveness by actual use of the system.View full abstractDownload PDF (359K) -
Kazutaka KURIHARA, Masataka GOTO, Jun OGATA, Takeo IGARASHI2006 Volume 23 Issue 4 Pages 4_60-4_68
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSThis paper introduces a multimodal input system, called “speech pen” that assists digital writing during lectures or presentations with background speech and handwriting recognition. The instructor basically freely speaks to the audience and writes on an electronic whiteboard as usual. The system recognizes those speech and handwriting in the background and provides the instructor with predictions for the further writing by using the recognition results. The instructor can accept a prediction and paste it in the board to save manual writing. If all predictions are wrong or useless, the instructor can simply ignore them. The speech-pen system also allows the sharing of context information for predictions among the instructor and the audience; the speech recognition result of the instructor is sent to the audience to support their own note taking. A preliminary study shows the effectiveness of this system and the implications for further improvements.View full abstractDownload PDF (203K) -
Takeshi NISHIDA, Takeo IGARASHI2006 Volume 23 Issue 4 Pages 4_69-4_75
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSThis paper introduces a text-based chat system Lock-on-Chat, designed to support conversations anchored to specific locations of shared images and reports our experience in operating it at technical conferences. Our system is unique in that it focuses on supporting communications scattered around among multiple images, while other systems for anchored conversations are designed for deeper discussions within a single document. Our system was used at technical conferences as a space for anchored conversations over presentation slides and we observed that audiences actively participated in discussions during the presentation. Lock-on-Chat was used in many ways in response to various presentations.View full abstractDownload PDF (183K) -
Yuji AYATSUKA, Nobuo KAWAGUCHI2006 Volume 23 Issue 4 Pages 4_76-4_81
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSDownload PDF (140K) -
Masuki KURODA, Etsuya SHIBAYAMA2006 Volume 23 Issue 4 Pages 4_82-4_86
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSAny programs, when in the presence of I/O failures such as network or file access failures, should include proper exception handling code. However, unit testing of such code is difficult since those external failures are sporadic in nature and so irreproducible. We propose a software fault injection based technique to simulate I/O failures in a reproducible manner. We also extend the format of a JUnit test case to specify not only an input and an output but also a kind and timing of external failure. Our proposals provide a framework for automated regression testing even in the presence of sporadic failures.View full abstractDownload PDF (88K) -
Masato SAITO, Munetoshi ISHIKAWA, Mizuki KAWAZOE, Yosuke KURITA, Shimu ...2006 Volume 23 Issue 4 Pages 4_87-4_93
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSDownload PDF (88K) -
Takashi CHIKAYAMA2006 Volume 23 Issue 4 Pages 4_94-4_95
Published: 2006
Released on J-STAGE: June 11, 2007
JOURNAL FREE ACCESSDownload PDF (59K)
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