Search Results - "Tomita, Fumiaki"

A new GNSS-acoustic positioning software implementing multiple positioning functions considering nadir total delays by Tomita, Fumiaki, Kido, Motoyuki

“…Global navigation satellite system-acoustic (GNSS-A) positioning is an important geodetic observation technique for detecting seafloor crustal deformation…”
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An approximate travel time calculation and a robust GNSS-acoustic positioning method using an MCMC technique by Tomita, Fumiaki, Kido, Motoyuki

“…It is important to consider horizontal heterogeneity in an underwater sound speed structure to accurately estimate positions of GNSS-acoustic sites. Although…”
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Improvement on spatial resolution of a coseismic slip distribution using postseismic geodetic data through a viscoelastic inversion by Tomita, Fumiaki, Iinuma, Takeshi, Ohta, Yusaku, Hino, Ryota, Kido, Motoyuki, Uchida, Naoki

“…Obvious crustal deformation is observed during a postseismic period as well as a coseismic period associated with a large earthquake. Major mechanisms of…”
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Development of a kinematic GNSS-Acoustic positioning method based on a state-space model by Tomita, Fumiaki, Kido, Motoyuki, Honsho, Chie, Matsui, Ryo

“…GNSS-A (combination of Global Navigation Satellite System and Acoustic ranging) observations have provided important geophysical results, typically based on…”
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Along-trench variation in seafloor displacements after the 2011 Tohoku earthquake by Tomita, Fumiaki, Kido, Motoyuki, Ohta, Yusaku, Iinuma, Takeshi, Hino, Ryota

“…The 2011 Tohoku-oki earthquake was the largest earthquake ever observed with seafloor geodetic techniques in and around its source region. Large crustal…”
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First measurement of the displacement rate of the Pacific Plate near the Japan Trench after the 2011 Tohoku-Oki earthquake using GPS/acoustic technique by Tomita, Fumiaki, Kido, Motoyuki, Osada, Yukihito, Hino, Ryota, Ohta, Yusaku, Iinuma, Takeshi

“…The subduction rate of an oceanic plate may accelerate after large earthquakes rupture the interplate coupling between the oceanic and overriding continental…”
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USV-Observed Turbulent Heat Flux Induced by Late Spring Cold Dry Air Incursion over Sub-Mesoscale Warm Regions off Sanriku, Japan by Nagano, Akira, Hasegawa, Takuya, Ariyoshi, Keisuke, Iinuma, Takeshi, Fukuda, Tatsuya, Fujii, Nobuhiro, Tomita, Fumiaki, Hino, Ryota

“…We performed oceanic and atmospheric observations in the region off the Sanriku coast, Japan, from May 11 to 5 July 2022, using a wave-propelled unmanned…”
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GNSS-Acoustic Observations of Seafloor Crustal Deformation Using a Wave Glider by Iinuma, Takeshi, Kido, Motoyuki, Ohta, Yusaku, Fukuda, Tatsuya, Tomita, Fumiaki, Ueki, Iwao

“…Crustal deformation of the seafloor is difficult to observe solely using global navigation satellite system (GNSS). The GNSS-acoustic (GNSS-A) technique was…”
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Development of a Trans‐Dimensional Fault Slip Inversion for Geodetic Data by Tomita, Fumiaki, Iinuma, Takeshi, Agata, Ryoichiro, Hori, Takane

“…Geodetic fault slip inversions have generally been performed by employing a least squares method with a spatially uniform smoothing constraint. However, this…”
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Development and examination of new algorithms of traveltime detection in GPS/acoustic geodetic data for precise and automated analysis by Azuma, Ryosuke, Tomita, Fumiaki, Iinuma, Takeshi, Kido, Motoyuki, Hino, Ryota

“…Background A GPS/acoustic (GPS/A) geodetic observation technique allows us to determine far offshore plate motion in order to understand the mechanism of…”
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3D Object Recognition in Cluttered Environments by Segment-Based Stereo Vision by Sumi, Yasushi, Kawai, Yoshihiro, Yoshimi, Takashi, Tomita, Fumiaki

“…We propose a new method for 3D object recognition which uses segment-based stereo vision. An object is identified in a cluttered environment and its position…”
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Humanoid robotics platforms developed in HRP by Hirukawa, Hirohisa, Kanehiro, Fumio, Kaneko, Kenji, Kajita, Shuuji, Fujiwara, Kiyoshi, Kawai, Yoshihiro, Tomita, Fumiaki, Hirai, Shigeoki, Tanie, Kazuo, Isozumi, Takakatsu, Akachi, Kazuhiko, Kawasaki, Toshikazu, Ota, Shigehiko, Yokoyama, Kazuhiko, Handa, Hiroyuki, Fukase, Yutaro, Maeda, Jun-ichiro, Nakamura, Yoshihiko, Tachi, Susumu, Inoue, Hirochika

“…This paper presents humanoid robotics platform that consists of a humanoid robot and an open architecture software platform developed in METI’s Humanoid…”
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3D object localization based on occluding contour using STL CAD model by Maruyama, K., Kawai, Y., Yoshimi, T., Tomita, F.

“…This paper describes a method to localize 3D objects, which is the extension of the segment-based object recognition method to use on a STL CAD model. Models…”
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Semi-Automated Excavation System for Partially Buried Objects Using Stereo Vision-Based Three-Dimensional Localization by Maruyama, Kenichi, Takase, Ryuichi, Kawai, Yoshihiro, Yoshimi, Takashi, Takahashi, Hironobu, Tomita, Fumiaki

“…We present a semi-automated excavation system for partially buried objects in unstructured environments. This system is a prototype of an excavation system for…”
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Learning from crustal deformation associated with the M9 2011 Tohoku-Oki earthquake by Wang, Kelin, Sun, Tianhaozhe, Brown, Lonn, Hino, Ryota, Tomita, Fumiaki, Kido, Motoyuki, Iinuma, Takeshi, Kodaira, Shuichi, Fujiwara, Toshiya

“…Numerous observations pertaining to the magnitude 9.0 2011 Tohoku-oki earthquake (offshore Japan) have led to new understanding of subduction zone earthquakes…”
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Seafloor Geodetic Observations to Reveal Co- and Post-Seismic Slip Distributions of the 2011 Tohoku-Oki Earthquake by Tomita, Fumiaki, Ohta, Yusaku, Iinuma, Takeshi, Hino, Ryota, Kido, Motovuki, Uchida, Naoki

“…The 2011 Tohoku-Oki earthquake (M9.0) occurred on March 11, 2011. Many studies have investigated the co-seismic slip distribution of the earthquake on the…”
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Offshore Postseismic Deformation of the 2011 Tohoku Earthquake Revisited: Application of an Improved GPS‐Acoustic Positioning Method Considering Horizontal Gradient of Sound Speed Structure by Honsho, C., Kido, M., Tomita, F., Uchida, N.

“…One of the important issues on the GPS‐acoustic (GPS‐A) observation for sea bottom positioning is how to address the horizontal heterogeneity of the sound…”
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First measurement of the displacement rate of the Pacific Plate near the Japan Trench after the 2011 Tohoku-Oki earthquake using GPS/acoustic technique: DISPLACEMENT RATE OF THE PACIFIC PLATE by Tomita, Fumiaki, Kido, Motoyuki, Osada, Yukihito, Hino, Ryota, Ohta, Yusaku, Iinuma, Takeshi

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Robot-vision architecture for real-time 6-DOF object localization by Sumi, Yasushi, Ishiyama, Yutaka, Tomita, Fumiaki

“…This paper presents a new robot-vision system architecture for real-time moving object localization. The 6-DOF (3 translation and 3 rotation) motion of the…”
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Step over motion of four wheeled and four legged flexible personal robot by Koyachi, N., Maruyama, K.-I., Kawai, Y., Tomita, F., Morikawa, Y.

“…Four wheeled and four legged flexible personal robot is designed for a personal robot following a person indoors. This robot is expected to serve a various…”
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