Events

Master's thesis presentation (Aug. 5, 2020)

  Yuki Tezuka participated in the Master's thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Yuki Tezuka and Shinji Ohyama
Reconstruction of temperature distribution using Voronoi tessellation with ultrasonic CT corresponding to flexible arrangement of element

YSEP presentation (Aug. 4, 2020)

 Havard Mo Vaadal participated in the YSEP presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Havard Mo Vaadal and Shinji Ohyama
Time-of-flight estimation for multipath signal using Vernier effect and M-sequential code

Master's thesis presentation (Feb. 5, 2020)

 Kouta Kizaki and Takuya Nakazawa and Kohei Yasumoto participated in the Master's thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Kouta Kizaki and Shinji Ohyama
High-resolution TOF Measurement Between Asynchronous Nodes Based on Vernier Effect
・Takuya Nakazawa and Shinji Ohyama
Study on indoor Office Worker Localization Using Floor Vibration Signal
・Kohei Yasumoto and Shinji Ohyama
Advancement of Flexible Ultrasonic CT for Indoor Temperature Distribution Measurement

Graduation thesis presentation (Jan. 22, 2020)

  Kazuki Kugai participated in the Graduation thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Kazuki Kugai and Shinji Ohyama
Measurement of Phase Difference Using Signal Synchronization by PLL for Flexible Type Ultrasonic CT

Paper publication(Dec, 2019)

 The paper by Kouta Kizaki and Shinji Ohyama was published in December 2019 issue of Transactions of the Society of Instrument and Control Engineers. (Vol.55, No.12, pp.830-838)

■Paper Title

・Kouta Kizaki and Shinji Ohyama
High-resolution TOF Measurement Using M-sequence Code Based on Vernier Effect

35th Sensing Forum, SICE(Aug. 29~30, 2019)

 Jun Fukushima participated in the 36th Sensing Forum at Keio University.

■Presentation Title

・Jun Fukushima, Shinji Ohyama
Speaker’s Localization in Meeting Using Speech Sound

Graduation thesis presentation (Jul. 16, 2019)

  Tokio Inoue participated in the Graduation thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Tokio Inoue and Shinji Ohyama
Estimating Duration Time of Speeking and Multipul Speaker's Localization Using Voice Sound Signal

Graduation thesis presentation (Feb. 20, 2019)

  Jun Fukushima participated in the Graduation thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Jun Fukushima and Shinji Ohyama
Speaker's Localization in Meeting Using Speech Sound

Master's thesis presentation (Feb. 5, 2019)

 Toshiki Nakamura and Moritaka Miyahira participated in the Master's thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Toshiki Nakamura and Shinji Ohyama
Accurate Reconstruction Using Heat Source Position Estimation for Flexible Element Arrangement Ultrasonic CT
・Moritaka Miyahira and Shinji Ohyama
Wide Ranging and High Accuracy Measurement for Acoustic CT System

SICE Annual Conference 2018(Sep. 12, 2018)

 Kouta Kizaki participated in the SICE Annual Conference 2018 at Nara Kasugano International Forum, JAPAN.

■Presentation Title

・Kouta Kizaki and Shinji Ohyama
Accurate TOF Measurement Using M-sequence Code Based on Vernier Effect

35th Sensing Forum, SICE(Aug. 30~31, 2018)

 Kouta Kizaki and Kohei Yasumoto participated in the 35th Sensing Forum at Yamaguchi University.

■Presentation Title

・Kouta Kizaki, Shinji Ohyama
Accuracy Improvement Based on Vernier Effect of TOF Measurement Using M-sequential Code
・Kohei Yasumoto, Shinji Ohyama
Projection Data Acquisition Method for Ultrasonic CT Using Sensor Network

The Japan Society of Mechanical Engineers Miura Award(Mar. 26, 2018)

 Tsubasa Hasumi received the Miura Award from The Japan Society of Mechanical Engineers in completing the master's program of the Tokyo Institute of Technology Department of Systems and Control Engineering.

Graduation thesis presentation (Feb. 20, 2018)

  Kouta Kizaki, Takuya Nakazawa, and Kouhei Yasumoto participated in the Graduation thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Kouta Kizaki and Shinji Ohyama
Accurate TOF Measurement Using M-sequential Code Based on Vernier Effect
・Takuya Nakamura and Shinji Ohyama
Development of Floor Vibration Sensor for Office Worker Localization
・Kouhei Yasumoto and Shinji Ohyama
Study on Measurement of Propagation Time Difference in Flexible Type Ultrasonic CT

Master's thesis presentation (Feb. 10, 2018)

 Hiroki Kaneko, Fumiya Tsukahara, and Tsubasa Hasumi participated in the Master's thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Hiroki Kaneko and Shinji Ohyama
Signal Processing Including Modulation and Demodulation for RF ToF Measurement based on Vernier Effect
・Fumiya Tsukahara and Shinji Ohyama
Accurate Reconstruction Using Radial Basis Function for Flexible Element Arrangement Ultrasonic CT
・Tsubasa Hasumi and Shinji Ohyama
Footstep localization based on first sound frame searching in environment with obstacle

Laboratory visit(Feb. 1, 2018)

 Kumoh National Institute of Technology teachers and students visited our labooratory.

Paper publication(Dec, 2017)

 The paper by Shun Tsunasawa and Shinji Ohyama was published in December 2017 issue of Transactions of the Society of Instrument and Control Engineers. (Vol.53, No.12, pp.644-653)

■Paper Title

・Shun Tsunasawa and Shinji Ohyama
Multi-speaker Localization and Tracking Based on TAOD Derived from Multi-frame CSP Coefficient

SICE Annual Conference 2017(Sep. 21, 2017)

 Toshiki Nakamura participated in the SICE Annual Conference 2017 at Kanazawa University, JAPAN.

■Presentation Title

・Toshiki Nakamura and Shinji Ohyama
Accurate Reconstruction of Temperature Distribution with Flexible Element Arrangement Ultrasonic CT

Sensing Forum Young Author Award, and Best Poster Award(Sep. 1, 2017)

 Hasumi Tsubasa won the Young Author Award and Best Poster Award, the 34th Sensing Forum, Kumamoto University.

■Presentation Title (Young Author Award)

・Tsubasa Hasumi, Shun Tsunasawa and Shinji Ohyama
Multiple Sound Source Localization and Tracking Using Speech and Footsteps
■Presentation Title (Best Poster Award)
・Tsubasa Hasumi and Shinji Ohyama
Person Localization Using Acoustic Signals in Authentic Environment

34th Sensing Forum, SICE(Sep. 1, 2017)

 Toshiki Nakamura participated in the 34th Sensing Forum at Kumamoto University.

■Presentation Title

・Toshiki Nakamura, Shinji Ohyama
Accurate reconstruction of temperature distribution with square type ultrasonic CT

Graduation thesis presentation (Feb. 21, 2017)

  Katsuto Ohkubo, Toshiki Nakamura, and Moritaka Miyahira participated in the Graduation thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Katsuto Ohkubo and Shinji Ohyama
Influence of Obstacles and Its Countermeasures for Sound Source Localization Based on TDOA Estimation
・Toshiki Nakamura and Shinji Ohyama
Accurate reconstruction of temperature distribution with flexible element arrangement ultrasonic CT
・Moritaka Miyahira and Shinji Ohyama
Application of TOF Measurement by Combining M-sequential Signal and Vernier Effect to Laser Range Finder

Master's thesis presentation (Feb. 13, 2017)

 Hirofumi Nonoguchi participated in the Master's thesis presentation at Tokyo Institute of Technolpgy.

■Presentation Title

・Hirofumi Nonoguchi and Shinji Ohyama
Study on Construction of Flexible Acoustic CT System

SICE Annual Conference 2016(Sep. 23, 2016)

 Yusuke Morishima participated in the SICE Annual Conference 2016 at Tsukuba International Congress Center, Tsukuba, JAPAN.

■Presentation Title

・Yusuke Morishima, Hirofumi Nonoguchi and Shinji Ohyama
Ultrasonic TOF Measurement with Wide Measuring Range for Acoustic CT System Based on Vernier Effect

Sensing Forum Young Author Award, SICE(Sep. 2, 2016)

 Shun Tsunasawa received Young Author Award at the 32nd Sensing Forum, SICE (2015) .

■Presentation Title

・Shun Tsunasawa, Suguru Fujimura, Shinji Ohyama
Person Tracking Using Acoustic Signals in Indoor Environment

33rd Sensing Forum, SICE(Sep. 2, 2016)

 Hiroki Kaneko, Fumiya Tsukahara, and Tsubasa Hasumi participated in the 33rd Sensing Forum at Kindai University.

■Presentation Title

・Hiroki Kaneko, Shinji Ohyama
Precise RF Time of Flight Measurement based on Combination of Vernier Effect and M-sequential Code
・Fumiya Tsukahara,Shinji Ohyama
High Accuracy Pedestrian Dead Reckoning based on Combination of Gyroscopes and Magnetic Sensors
・Tsubasa Hasumi, Shun Tsunasawa, Shinji Ohyama
Multiple Sound Source Localization and Tracking Using Speech and Footsteps

ADDRESS

Ohyama Lab.
School of Engineering,
Dept. of Systems and Control Engineering
Tokyo Institute of Technology

S5-203A, 2-12-1 Ookayama,
Meguro-ku, Tokyo, 152-8552 Japan

LINK