Journal of Biomedical Fuzzy Systems Association
Online ISSN : 2424-2578
Print ISSN : 1345-1537
ISSN-L : 1345-1537
Volume 12, Issue 1
Displaying 1-21 of 21 articles from this issue
  • Article type: Cover
    2010 Volume 12 Issue 1 Pages Cover1-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Appendix
    2010 Volume 12 Issue 1 Pages App1-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Index
    2010 Volume 12 Issue 1 Pages Toc1-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Appendix
    2010 Volume 12 Issue 1 Pages App2-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Appendix
    2010 Volume 12 Issue 1 Pages App3-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Appendix
    2010 Volume 12 Issue 1 Pages App4-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Seizaburo ARITA, Mitsugi HONDA, Shigeru MITANI, Yoshiharu AZUMA, Yoshi ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 1-8
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    A diagnostic logic which outputs multiple items from multiple input items was constructed using nonlinear multivariate analysis, and applied for the diagnosis of child hip joints on X-ray images. Regarding the outward displacement rates, upward displacement rates, OE angles, and α angles as input and the diagnoses of dislocation of the hip, acetabular dysplasia, and normal hip joint as output, the attribute probability functions were introduced into the system, and diagnoses were made based on the synergism of 2 items and the Min-Max assessment. X-ray imaging data of 110 child hip joints were investigated. The data were divided into 2 groups: data for system construction and verification, and the diagnostic accuracy of the system was investigated. On applying the system to the verification data, diagnostic accuracy rate was 92.9%. The developed diagnostic system may be useful for the diagnosis of child hip joints.
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  • Hideki YOSHIDA, Masahiro NAKANO, Toru YUKIMASA, Yasunari MAEDA, Kazuya ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 9-18
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    It has been reported that the maximum and minimum data of the narrow-band (one octave) acoustic waveforms played a pivotal role in the sound reproduction by using the sinusoidal interpolation between two successive extrema. Although two indices of phase and quantization errors of the extrema have closely related to the perception of sound localization, and the form of amplitude envelope, respectively, which has regarded as a principal carrier of speech waveforms, the interaction between the two has remained unclear as to which is a critical factor in the auditory cognitive system. We produced two types of synthesized sounds, manipulating either time or amplitude of the extrema under condition that two sum squared errors between an unmodified sound and the two syntheses were mutually close. Scheffe's pair test has reported that the quality of synthesized 3-s speech and music with phase error was significantly lower than that of the corresponding sounds with quantization error, suggesting the cognitive superiority of phase error to noise in amplitude envelope. Besides, synthesized sounds with estimated extrema by using a least-square fit maintained almost the same quality of unprocessed sounds, when phase error was within the margin of four to nine percent, supporting the notion of an index, sensitive to the sound quality.
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  • Hideki YOSHIDA, Masahiro NAKANO, Toru YUKIMASA, Hiroyuki FUKUCHI, Akiy ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 19-28
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    Estimation of the local maximal data in the band-limited waveform by using the least squared method has been a key technique in order to reduce processing time, especially for the six-channel finite-impulse-response filter-array on our proposed real-time acquisition system. According to our previous study, more than half of minimum data in the band-pass filtered waveform can be substituted by average of the contiguous maximum data, with achieving lower than 4% of phase error. Not only approximate 67% reduction of processing time but also less than half of file size, e.g., approximate 65% saving of 1-h speech data, has been attained, releasing three types of the. ext file format for the extremal data. Further, a design of shared memory has played on important role in performance of response on a single processor system of PC-AT compatible computer, offering that length and number of blocks, and sampling frequency were 16,384-byte, 2 and 22,050hz, respectively. We have improved the acquisition system for the speech bandwidth (80-5,120Hz), in which conventional pulse-code-modulated data series can be simply converted to the extremal data in the tem-pro-spectral domain, generating files every 1.5-s, for manipulation of fine acoustic structure, synthesis, succeeding processes for recognition and/or categorization, and so forth.
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  • Yasukazu HASHIGUCHI, Yasutake HASHIGUCHI
    Article type: Article
    2010 Volume 12 Issue 1 Pages 29-36
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    In this paper, we analyzed the physiological/psychological factors related to the scores of archery athletes mainly from the aspect of such physiological indicators as heart rate, blood pressures, etc. before a match. such psychological indicators as the state anxiety toward a match, etc., in relation to the scores of archery matches. As a background, it has been said that, in athletic sports, physiological conditions are important to obtain good performances (scores and results), and that, particularly in personal matches, the physiological and psychological conditions immediately before a match may influence the results. As a result of our analysis, it was found that the scores of a sham match were significantly higher in the experienced athletes, compared with the inexperienced ones, and that the blood pressures and heart rates before a match (before a W-up and immediately before a match) tended to show higher values in the inexperienced athletes, compared with the experienced ones. Furthermore, a significant, negative correlation was found between the results (scores) of a match and the blood pressures before W-up (diastolic pressures and average pressures) as well as the heart rates, and a significant, positive correlation between the results (scores) of a match and the values on the mood scale immediately before a match was confirmed.
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  • Toru YUKIMASA
    Article type: Article
    2010 Volume 12 Issue 1 Pages 37-42
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    There is the observation problem in quantum theory. In quantum mechanics, wave function obeys Schrodinger's equation, but wave function acts in other uncertain ways in an observation. This action is called reduction of the wave packet. Thus the observation problem means that quantum theory could be inconsistent and its application would be unsuitable. Next we consider what consciousness is. The state that one awakens to oneself and is aware of oneself considering things as objects, can be thought of as being conscious. Namely, one could not be conscious of the self itself without paying an attention to oneself. This leads to a big question: Who on earth is a person thinking of the self? This situation might be regarded as some kind of discrepancy, but we are always faced with a similar situation whenever considering consciousness. In this structure of logic, there is a similarity between the observation problem and phenomena of mind and consciousness.
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  • Noriko SATO, Omi SATO
    Article type: Article
    2010 Volume 12 Issue 1 Pages 43-52
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    The purpose of the introduction of the electronic medical record: EMR is improvement of efficiency in the business at medical treatment site. But it is used without achieving the effect or just hesitate to be introduced. Thinking by patient's aspect, a new type of customer service will consists and becoming of wide use of the electronic medical record.
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  • Daisuke SAITO, Keiichi SAITO, Kazuhiro NOTOMI, Masao SAITO, Yoshihiko ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 53-59
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    The approach of the Web accessibility is necessary for all the people to be able to use websites. As the visual elements are very important factors in the website, in our previous study, the visibility of young adults, the elderly and dichromatic vision was evaluated using the simulation filters. In this report, we made a model of discriminant analysis using the results of the paired comparison for predicting the website visibility. As the results, the difference between simulation results of young adults and the elderly was not confirmed at using the simulation filters. However, apart from the above, at dichromatic vision simulation, the visibility was very low when G-value of RGB is 66 and R-value is small. Therefore, when the character colors of these RGB values are used, the website visibility has to be considered carefully.
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  • Masaharu MIZUMOTO, Tao YANG
    Article type: Article
    2010 Volume 12 Issue 1 Pages 61-70
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    As an extension of TS (Takagi-Sugeno) fuzzy reasoning method, "weighted TS fuzzy reasoning method" is proposed in which the consequent part of the fuzzy rule consists of output function with weighting function, and its properties are discussed with the well-known simplified fuzzy reasoning method and TS fuzzy reasoning method. This paper also shows learning algorithms for the weighted TS fuzzy reasoning method with multiple-outputs by using the steepest decent method, and compares learning results by the simplified reasoning method and TS fuzzy reasoning method by applying to diabetes diagnostic data, and the proposed method obtains the best diagnostic results.
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  • Joo Kooi TAN, Toshimasa SONE, Seiji ISHIKAWA, Hyoungseop KIM, Takashi ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 71-77
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    This article describes a novel technique for modeling an entire shape of an object by employing virtual see-through cameras surrounding an object interested. The proposed camera system works as a frontal camera system which observes not only frontal part of the object concerned but also its rear part virtually and, at the same time, as a rear camera system which observes not only rear part of the object but also its frontal part virtually. The feature points spread over the entire object are then collected and registered in a single measurement matrix which is factorized to obtain the 3-D locations of the feature points. The technique is applied successfully to 3-D modeling of a human stand-up motion from a chair which is often analyzed in rehabilitation.
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  • Toko SASAKI
    Article type: Article
    2010 Volume 12 Issue 1 Pages 79-86
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    Biometric authentication technology has used PC and various applications including PC login devices and validation devices for ATMs for various fields in Japan. On each scene, we must consider security, usability, and user acceptability of biometrics. In the year 2008, We developed the student attendant system with finger vein authentication technology, this new system were introduced into Niigata University of International and Information Studies. This paper investigates the survey result about student acceptability of this system and reports some case studies of universities and hospitals.
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  • Makoto YAMANAKA, Tetsuya NEMOTO, Yasumi ITO, Kazuharu Koide, Masaki TA ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 87-91
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    Recently, in the medical field have problem in a patients escape. One of those associated with delays in facility construction measure. The increases in dementia patients mean the high-risk patients increase. As a result, general ward was required to preventive measures. The prevention measures must have been achieved by different concepts. Therefore, in this study are based on relatively simple and can get the blueprints to lead to selective absence without leave from the circulation structure diagram, interviewed for risk factors associated with the out flow line was obtained from the classification, AHP was a risk based approach identifying the root Think will lead to early implementation of preventive measures by which captures the characteristics of each facility.
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  • Masafumi KOMATSU, Hiroki TAKAHASHI, Hyoungseop KIM, Joo Kooi TAN, Seij ...
    Article type: Article
    2010 Volume 12 Issue 1 Pages 93-98
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    Recently, various imaging equipment have been introduced into medical imaging fields. Especially, MDCT is one of the most useful diagnosis systems because it provides a high resolution image to medical doctors. Accordingly, many related image processing techniques are proposed into medical fields for extraction of abnormal area. In the medical image processing field, segmentation is one of the most important problems for analyzing abnormalities. Many related segmentation techniques have been developed for automatic extraction of ROI. In this paper, we propose a new technique for automatic extraction of the multi organs on the breast MDCT images employing the 3D region growing and template matching technique. We apply the proposed technique for extraction of lung and heart region to six CT Cases and satisfactory results are achieved.
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  • Joo Kooi TAN, Makoto MIYOSHI, Seiji ISHIKAWA, Takashi MORIE
    Article type: Article
    2010 Volume 12 Issue 1 Pages 99-103
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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    Automobile technologies have been challenging to realization of safe driving by the employment of a computer vision system. Various techniques have been developed for preventing car accidents based on so-called car vision technologies by analyzing road images captured by the cameras mounted on a car. Traffic accidents often occur at junctions compared to motor ways or ordinary roads. We therefore propose in this paper a technique for detecting pedestrians on a zebra crossing near a junction from the video images provided by a camera on a car. The detection is performed by recovering backgrounds from the video images and separating foregrounds from the backgrounds. Performance of the proposed technique was examined by the experiment employing car video images at some urban junctions. The technique detected 82% in average of a pedestrian's shape correctly when 1% of the background was incorrectly extracted as part of the pedestrian.
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  • Article type: Appendix
    2010 Volume 12 Issue 1 Pages App5-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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  • Article type: Cover
    2010 Volume 12 Issue 1 Pages Cover2-
    Published: May 11, 2010
    Released on J-STAGE: September 02, 2017
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