TY - GEN
T1 - Estimation of the reflectance distribution of fallen objects on highways for tunnel lighting management
AU - Sakaguchi, So
AU - Hirakawa, Satoshi
AU - Mizutani, Daijiro
AU - Obama, Kengo
AU - Kaito, Kiyoyuki
PY - 2013
Y1 - 2013
N2 - Fallen objects on highways are one of the direct or indirect factor which induce major accidents. Therefore, in management of highways, the improvement in visibility to fallen objects has been an important issue. And, the reflectance distribution of fallen objects and the tunnel lighting system greatly influence the improvement in the visibility of fallen objects. In this study, it is set the eventual goal that the establishment of the decision making of the tunnel lighting system, and as its basic study, it is precisely estimated the reflectance distribution of fallen objects. Specifically, it is represented the reflectance distribution by beta mixture model that can be considered multimodal. Mixing coefficient and unknown parameters of beta mixture model are estimated by the EM algorithm. Finally it is indicated the application example which used the survey datas, and verified of the validity of the model in this study.
AB - Fallen objects on highways are one of the direct or indirect factor which induce major accidents. Therefore, in management of highways, the improvement in visibility to fallen objects has been an important issue. And, the reflectance distribution of fallen objects and the tunnel lighting system greatly influence the improvement in the visibility of fallen objects. In this study, it is set the eventual goal that the establishment of the decision making of the tunnel lighting system, and as its basic study, it is precisely estimated the reflectance distribution of fallen objects. Specifically, it is represented the reflectance distribution by beta mixture model that can be considered multimodal. Mixing coefficient and unknown parameters of beta mixture model are estimated by the EM algorithm. Finally it is indicated the application example which used the survey datas, and verified of the validity of the model in this study.
KW - Beta mixture model
KW - Fallen objects on highways
KW - The reflectance distribution
UR - http://www.scopus.com/inward/record.url?scp=84893543359&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893543359&partnerID=8YFLogxK
U2 - 10.1109/SMC.2013.683
DO - 10.1109/SMC.2013.683
M3 - Conference contribution
AN - SCOPUS:84893543359
SN - 9780769551548
T3 - Proceedings - 2013 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2013
SP - 4000
EP - 4005
BT - Proceedings - 2013 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2013
T2 - 2013 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2013
Y2 - 13 October 2013 through 16 October 2013
ER -