OHYA Akihisa

Researcher's full information

Articles
  • Environment Recognition for a Mobile Robot By Ul- Fig.2:A mobile robot with the sonar-ring sensor. trasound -An Environment Map Generation by a Fast and Accurate Sonar-ring Sensor-
    矢田 晃子; 大矢 晃久; 油田 信一
    日本音響学会研究発表会講演論文集/1999(2)/pp.1197-1198, 1999-09
  • Calculate of Sound Field by Naroow Aperture Phased Array.
    瀧澤 直樹; 大矢 晃久; 秋山 いわき
    日本音響学会研究発表会講演論文集/1999(2)/pp.1169-1170, 1999-09
  • Ultrasonic Tomography Using Narrow Aperture Phased Array Method : Relation of Aperture Width to Spatial Resolution
    瀧澤 直樹; 大矢 晃久; 秋山 いわき
    電気学会研究会資料. MBE, 医用・生体工学研究会/1999(21)/pp.7-12, 1999-06
  • A Fast and Accurate Sonar-ring Sensor for a Mobile Robot "jointly worked"
    大矢 晃久
    Proceedings 1999 IEEE International Conference on Robotics and Automation/p.630-636, 1999-05
  • Ultrasonic CT Using Narrow Aperture Phased Array : Aperture and beam broadening
    瀧澤 直樹; 大矢 晃久; 秋山 いわき
    Journal of medical ultrasonics = 超音波医学/26(4)/p.691, 1999-04
  • Tumor shape evaluation using Neural Network
    小川 修司; 秋山 いわき; 伊東 紘一; 尾本 きよか; 大矢 晃久
    日本音響学会研究発表会講演論文集/1999(1)/pp.1111-1112, 1999-03
  • On the Image using Second Harmonic Component of Echoes
    熊沢 尚司; 秋山 いわき; 大矢 晃久
    日本音響学会研究発表会講演論文集/1999(1)/pp.1121-1122, 1999-03
  • High-Speed Measurement of Normal Wall Direction by Ultrasonic Sensor "jointly worked"
    大矢 晃久
    Journal of Robotics and Mechatoronics/11(1)/p.13-16, 1999-02
  • On The Second Harmonic Components in Echo Signal : Measurement of Acoustic Nonlinearity Parameter
    秋山 いわき; 大矢 晃久
    Technical report of IEICE. EA/98(532)/pp.17-21, 1999-01
  • On The Second Harmonic Components in Echo Signal : Measurement of Acoustic Nonlinearity Parameter
    秋山 いわき; 大矢 晃久
    IEICE technical report. Ultrasonics/98(530)/pp.17-21, 1999-01
  • Vision-Based Navigation by a Mobile Robot with Obstacle Avoidance using Single Camera Vision and Ultrasonic Sensing "jointly worked"
    Akihisa Ohya; Akio Kosaka; Avi Kak
    IEEE Transactions on Robotics and Automation/14(6)/p.969-978, 1998-12
  • APCS : Autonomous Position Correction System Using Ultrasonic Sensing for Indoor Mobile Robot Navigation "jointly worked"
    大矢 晃久
    Proceedings International Symposium on Robotics and Automation '98/p.339-346, 1998-12
  • Intelligent Systems Using Fuzzy Logic for The Determination of Breast Tumors "jointly worked"
    大矢 晃久
    Proceedings of 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society/p.1356-1359, 1998-10
  • Position Correction Using Elevation Map for Mobile Robot on Rough Terrain "jointly worked"
    大矢 晃久
    Proceedings of the 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems/p.582-587, 1998-10
  • Navigation of an Autonomous Mobile Robot in a Real Environment : Researches in Intelligent Robot Laboratory of University of Tsukuba
    前山 祥一; 大矢 晃久; 油田 信一
    認知科学 = Cognitive studies : bulletin of the Japanese Cognitive Science Society/5(3)/pp.69-76, 1998-09
  • SYNTHETIC APERTURE TOMOGRAPHIC IMAGING USING ULTRASOUND
    秋山 いわき; 瀧澤 直樹; 大矢 晃久
    Medical imaging technology/16(4)/pp.347-349, 1998-07
  • On the second harmonic component in echo signal
    秋山 いわき; 大矢 晃久
    日本音響学会研究発表会講演論文集/1998(1)/pp.913-914, 1998-03
  • Discussion of Pulsed echo Ultrasonic CT.
    瀧澤 直樹; 秋山 いわき; 大矢 晃久
    日本音響学会研究発表会講演論文集/1998(1)/pp.903-904, 1998-03
  • Ultrasonic Probe Tracking System -Three Dimensional Position Measurement-
    城田 和宏; 秋山 いわき; 大矢 晃久
    日本音響学会研究発表会講演論文集/1998(1)/pp.945-946, 1998-03
  • Ultrasonic Tomography using Arc Focusing Beam "jointly worked"
    大矢 晃久
    1998 IEEE Ultrasonics Symposium Proceedings/p.1659-1662, 1998-01
  • Outdoor Navigation of a Mobile Robot Using Natural Landmarks "jointly worked"
    大矢 晃久
    Intelligent Autonomous Systems/p.164-171, 1998-01
  • Three Dimensional Ultrasonic Imaging for Diagnosis of Breast Tumor "jointly worked"
    大矢 晃久
    1998 IEEE Ultrasonics Symposium Proceedings/p.1677-1680, 1998-01
  • Robust Dead Reckoning System by Fusion of Odometry and Gyro for Mobile Robot Outdoor Navigation
    大矢 晃久
    Journal of the Robotics Society of Japan/15(8)/p.1180-1187, 1997-11
  • Robust Dead Reckoning System by Fusion of Odometry and Gyro for Mobile Robot Outdoor Navigation
    前山 祥一; 大矢 晃久; 油田 信一
    Journal of the Robotics Society of Japan/15(8)/pp.1180-1187, 1997-11
  • Retroactive Positioning for a Mobile Robot - To Cope with Time Consuming External Sensors -
    前山 祥一; 大矢 晃久; 油田 信一
    Journal of the Robotics Society of Japan/15(7)/pp.1075-1081, 1997-10
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