Yusuke KOBANA

Contact

Experience

Y.Kobana, J.Takahashi, N.Kitsunezaki, Y.Tobe, G.Lopez, “Research on Extraction of Cycling Roads Signal Using Acceleration Sensor,” at the 16th meeting of the Academy of Human Informatics,Tokyo, Japan, December 4 2013[pdf].

"Recently, bicycle accidents have been increased. One of the causes is that maintenance of road has not been performed sufficiently because of its high costs. In this research, we propose a method to investigate road by cyclists. The purpose of this research is the reduction of cost in the maintenance. First, cyclists wear a smartphone with accelerometer and collect acceleration signals. Second, the collected signals are separated into road signal and pedaling signal by applying Independent Component Analysis. Finally, the road signal is classified by its feature."

Y.Kobana, J.Takahashi, N.Kitsunezaki, Y.Tobe, G.Lopez, “Design of Extracting of Cycling Roads Signal Using Smartphones,” at the 76th National Convention of IPSJ, Tokyo, Japan, March 11-13 2014.

"In road mentainance, there is the one of problem that roads are not investigated thoughtly. The reason is that exhausive investigation is very expensive. In this paper, we propose a method to exhausively investigate roads using bycicle and smartphone at low cost. We suppose that cyclists equipping smartphone are common peaple. Acceleration signals are collected by attaching smartphone to cyclists' thigh. Obtained signal contains two signals,pedaling signal and road signal. So, we separate the signals by applying Independent Component Analysis (ICA). We detect road damage from obtained road signal."

Y.Kobana, J.Takahashi, N.Kitsunezaki, Y.Tobe, G.Lopez, “Extraction of Cycling Roads Information: Fundamental Investigation and Actual Measurement,” at 71th meeting of IPSJ SIG Mobile Computing and Ubiquitous Communications, Okinawa, Japan, May 15-16 2014.

"Maintenance and management of roads is becoming an important issue as well as other kinds of social infrastructure. A problem in inspecting the status of roads is its vast range and huge number for investigation. To compensentate official inspection by local governments, we propose YKOB, a system of inspecting the road status by bicycle riders who carry smartphones. In this paper we describe the design principle of YKOB and its evaluation results by obtaining ill-maintained portions in the real environment."

Y.Kobana, J.Takahashi, N.Kitsunezaki, Y.Tobe, G.Lopez, “Detection of Road Damage using Signals of
Smartphone-Embedded Accelerometer while Cycling”, IWWISS2014, France, September 1-2 2014.

"Recently, bicycle accidents have been increasing. One of the causes is poor road maintenance because of its high costs. The purpose of this study is the reduction of maintenance cost. We propose a method to detect road damage from cyclists pedaling motion. First, cyclists wear a smartphone in their pants’ side pocket and collect acceleration signals with embedded accelerometer. Second, the collected signals are separated into road signal and pedaling signal by applying Independent Component Analysis (ICA). Finally, road condition is classified depending on road signal’s feature. We carried out experiments on three road conditions: flat, positive step damage, and negative step damage. Using proposed method, road condition’s classification overall accuracy was 70%."

Awards

History

Affiliation

Lopez Laboratory at Aoyama Gakuin University

Tobe Laboratory at Aoyama Gakuin University

Others

Japan Cricket Association （My Grades）