scholarly journals A FUNDAMENTAL STUDY OF A CAVE DETECTION METHOD IN COASTAL AREA USING MICROTREMOR ARRAY MEASUREMENTS

2017 ◽  
Vol 73 (2) ◽  
pp. I_450-I_455
Author(s):  
Takashi NAGAO ◽  
Takahiro HAKODA ◽  
Yoshihiro ITO ◽  
Masayuki YAMADA ◽  
Kaoru NISHIBATA ◽  
...  
2010 ◽  
Vol 45 (1) ◽  
pp. 116-121
Author(s):  
Yuki Taniguchi ◽  
Sangbeak An ◽  
Shigehiro Yamamoto ◽  
Teruo Azukizawa

2016 ◽  
Vol 28 (6) ◽  
pp. 870-877 ◽  
Author(s):  
Keisuke Kazama ◽  
◽  
Yasuhiro Akagi ◽  
Pongsathorn Raksincharoensak ◽  
Hiroshi Mouri

[abstFig src='/00280006/11.jpg' width='300' text='Road detection method with HOG and SVM' ] This paper describes a road area detection method using a support vector machine (SVM) and histogram of oriented gradient (HOG) features. The boundary lines have many features, such as changes in height, color, and brightness, but these are sensitive to noise. In terms of robustness, it is difficult to match road boundary lines with the boundary lines on 2D maps. Localization methods using texture matching are accurate, but they have disadvantages related to adapting to changes in the environment. We therefore decided to make a classifier to differentiate road areas from other areas by detecting the road plane. First, we calculate the HOG features from range data acquired by 3D LiDAR. We then create the road area classifier by applying SVM. Finally, we evaluate the basic performance of the proposed method in simulation and in the real world.


Author(s):  
K. Pegg-Feige ◽  
F. W. Doane

Immunoelectron microscopy (IEM) applied to rapid virus diagnosis offers a more sensitive detection method than direct electron microscopy (DEM), and can also be used to serotype viruses. One of several IEM techniques is that introduced by Derrick in 1972, in which antiviral antibody is attached to the support film of an EM specimen grid. Originally developed for plant viruses, it has recently been applied to several animal viruses, especially rotaviruses. We have investigated the use of this solid phase IEM technique (SPIEM) in detecting and identifying enteroviruses (in the form of crude cell culture isolates), and have compared it with a modified “SPIEM-SPA” method in which grids are coated with protein A from Staphylococcus aureus prior to exposure to antiserum.


Author(s):  
Weihai Sun ◽  
Lemei Han

Machine fault detection has great practical significance. Compared with the detection method that requires external sensors, the detection of machine fault by sound signal does not need to destroy its structure. The current popular audio-based fault detection often needs a lot of learning data and complex learning process, and needs the support of known fault database. The fault detection method based on audio proposed in this paper only needs to ensure that the machine works normally in the first second. Through the correlation coefficient calculation, energy analysis, EMD and other methods to carry out time-frequency analysis of the subsequent collected sound signals, we can detect whether the machine has fault.


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