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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 20件中 1~20件目  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
US 2019-06-17
16:00
Tokyo Akihabara satellite campus, Tokyo Metropolitan University Evaluation of liver fibrosis with high estimation accuracy by using moments of the probability density function of echo envelope in complex space
Chuang Zhang, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech.) US2019-24
We have been developing a quantitative estimation method of liver fibrosis using multi-Rayleigh model to express a proba... [more] US2019-24
pp.25-30
EA, US
(Joint)
2019-01-22
14:00
Kyoto Doshisha Univ. [Poster Presentation] Basic study of measurement method of broadband ultrasonic attenuation in non-contact QUS
Toshiaki Okubo, Shinnosuke Hirata, Hiroyuki Hachiya (TokyoTech) US2018-100
QUS is widely used as screenings of osteoporosis. In this study, a method of measurement of speed of sound (SOS) and bro... [more] US2018-100
pp.103-106
US 2018-08-30
13:30
Tokyo Tokyo Institute of Technology Quantitative analysis of acoustic reflection characteristics on sea surface using FDTD simulation
Tomoya Tsukui, Shinichi Sawada (IHI), Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2018-41
Many kinds of hydro acoustic devices are used in the field of ocean development of resources and observations with AUV a... [more] US2018-41
pp.1-6
US 2018-05-21
16:20
Tokyo   Consideration about evaluation method of road surface roughness by amplitude statistics of sound waves reflected from the road surface
Naoki Shinoda, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2018-17
Spatial information measurement such as road surface measurement and road obstacle detection is useful for automatic ope... [more] US2018-17
pp.35-40
US 2017-08-31
10:00
Kanagawa   Variability characteristics of sound reflection on sea surface with wave -- A result of water tank experiment --
Tomoya Tsukui, Shinichi Sawada (IHI), Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2017-46
Various hydro acoustic devices are used in the field of ocean development of resources and observations with AUV and ASV... [more] US2017-46
pp.1-6
US 2017-05-22
13:55
Tokyo   Non-contact measurement of body-surface displacement by breathing and heart beat using airborne acoustic images
Taiki Hayashi, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2017-15
Today, vital signs measurement systems, in which sensors are had contact with or closed to body surface, are widely prev... [more] US2017-15
pp.7-12
EA, US
(Joint)
2017-01-25
10:30
Kyoto Doshisha Univ. [Poster Presentation] Relationship of shear wave velocity and excited vibration waveform in tissue mimicking phantom
Hiroto Hasegawa, Shihei Mori, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2016-83
It is known shear modulus of fibrotic liver tissues becomes larger than that of normal tissues. Many approaches to evalu... [more] US2016-83
pp.55-60
EA, US
(Joint)
2017-01-26
11:20
Kyoto Doshisha Univ. Airborne ultrasonic position and velocity measurement by using two types of LPM signals and multiple moving objects tracking
Haruki Chiba, Ko Sakai, Shinnosuke Hirata (Tokyo Tech), Yuichiro Orino (The University of Shiga Prefecture), Minoru K Kurosawa (Tokyo Tech) US2016-112 EA2016-80
Ultrasonic distance measurement with pulse-echo is based on determination of the time of flight of ultrasonic pulses. In... [more] US2016-112 EA2016-80
pp.197-202(US), pp.73-78(EA)
US 2016-08-25
14:25
Tokyo Tokyo Institute of Technology, Ookayama Campus Evaluation of sound reflection characteristics on sea surface with ocean waves using the FDTD method.
Tomoya Tsukui, Shinichi Sawada (IHI), Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2016-39
(To be available after the conference date) [more] US2016-39
pp.7-12
US, EA
(Joint)
2016-01-29
15:30
Osaka Kansai University, Centenary Memorial Hall Experimental evaluation of imaging method of liver tissues for quantitative diagnosis using a contrast phantom with three areas
Minori Ohashi, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2015-104
 [more] US2015-104
pp.117-122
US 2015-10-09
14:00
Ishikawa Kanazawa Institute of Technology Study about multi-channelization in ultrasonic distance measurement using LFM signal coded by M-sequence
Kota Yamanaka, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2015-60
In ultrasonic distance measurement by the pulse-echo method, the signal-to-noise ratio (S/N) of the received echo and th... [more] US2015-60
pp.13-18
US 2015-06-19
12:55
Kumamoto Kumamoto University Estimation accuracy of quantitative diagnostic method for liver fibrosis considering nonspeckle signals in ultrasound B-mode image of clinical data
Shohei Mori, Shinnosuke Hirata (Tokyo Tech), Tadashi Yamaguchi (Chiba Univ.), Hiroyuki Hachiya (Tokyo Tech) US2015-17
A quantitative diagnostic method for liver fibrosis using a multi-Rayleigh model which is a model of a probability densi... [more] US2015-17
pp.7-12
US, EA
(Joint)
2015-01-28
16:15
Kyoto Doshisha Univ. Detection of pass-through airborne ultrasound for non-contact measurement of acoustic characteristics in tissues
Koichi Terashima, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech), Nobuo Niimi (NIPPON SIGMAX) US2014-81 EA2014-60
Ultrasonic bone assessment based on the propagation speed or attenuation characteristic of ultrasound in cancellous bone... [more] US2014-81 EA2014-60
pp.39-43(US), pp.7-11(EA)
US 2014-11-13
15:20
Ishikawa Kanazawa Institute of Technology Improvement of Doppler velocity estimation by spectrum pattern analysis of M-sequence-modulated ultrasound in noisy environments
Yohei Ikari, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2014-62
 [more] US2014-62
pp.23-28
US 2014-06-23
14:40
Tokyo Tokyo Metropolitan Univ. Approach for quantitative liver tissue characterization based on texture analysis considering slice resolution of ultrasonic image
Hiroshi Isono, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2014-20
As the method for quantitative liver tissue characterization, we have been focusing on texture analysis by using co-occu... [more] US2014-20
pp.19-24
EA, US
(Joint)
2014-01-27
13:00
Osaka Kansai University, Centenary Memorial Hall Position and velocity imaging of moving objects using the M-sequence modulated ultrasound
Yohei Ikari, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2013-86
Pulse compression using M-sequence modulated signals can improve the SNR of the reflected echo and distance resolution i... [more] US2013-86
pp.25-30
US 2013-11-11
17:15
Ishikawa Kanazawa Inst. Tech. Simulation for the effect of the beam width on quantitative estimation of liver fibrosis using ultrasonic images
Shohei Mori, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2013-61
In order to realize quantitative diagnosis of liver fibrosis, we have been developing a method of quantitative evaluatio... [more] US2013-61
pp.43-48
US 2013-05-27
16:45
Tokyo Kikai-Shinko-Kaikan Bldg. Numerical analyses using FDTD method for acoustic propagation in tissues by airborne ultrasonics
Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Inst. of Tech.) US2013-14
Elastic properties or tissue structure can be quantitatively evaluated by measuring the velocity or attenuation of ultra... [more] US2013-14
pp.35-39
US, EA
(Joint)
2013-01-24
11:20
Kyoto Kambaikan, Doshisha Univ. Experimental verification of measuring small movement using MTI filter and phase tracking
Kotaro Hoshiba, Shinnosuke Hirata, Hiroyuki Hachiya (Tokyo Tech) US2012-90
Acoustic sensing has a potential that is able to obtain various information
such as location, shape, material and movem... [more]
US2012-90
pp.13-18
US 2008-02-26
15:10
Tokyo Elm Hall, Ichigaya Bldg., Sharp Corp. Experiments of ultrasonic distance measurement using cross-correlation by single-bit signal processing
Shinnosuke Hirata, Minoru Kurosawa (Tokyo Tech), Takashi Katagiri (Sutekina Inc.) US2007-117
Ultrasonic distance measurement with the pulse-echo method is based upon the determination of the time of flight of ultr... [more] US2007-117
pp.49-54
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