TY - JOUR
T1 - A study of the application of digital photogrammetry to slope monitoring systems
AU - Ohnishi, Y.
AU - Nishiyama, S.
AU - Yano, T.
AU - Matsuyama, H.
AU - Amano, K.
PY - 2006/7/1
Y1 - 2006/7/1
N2 - This paper reports on a study to develop the technology to monitor the behavior of a slope using the digital camera images of the slope. Specifically, it deals with a monitoring system that allows the highly precise reproduction of slope shape from a number of images taken from various directions. The study explores an analytical method that uses the Moore-Penrose generalized inverse matrix for an equation derived from the geometrical relation between the camera, measurement points and photographed images, obtains the distance between measurement points installed on the target slope by the minimum-norm least-squares solution without setting any control points, and discusses the technology to monitor slope behavior based on the changes in the distance obtained. Furthermore, the precision and accuracy of the measurement values obtained by the proposed technology is quantitatively verified, and its applicability to slope monitoring is examined.
AB - This paper reports on a study to develop the technology to monitor the behavior of a slope using the digital camera images of the slope. Specifically, it deals with a monitoring system that allows the highly precise reproduction of slope shape from a number of images taken from various directions. The study explores an analytical method that uses the Moore-Penrose generalized inverse matrix for an equation derived from the geometrical relation between the camera, measurement points and photographed images, obtains the distance between measurement points installed on the target slope by the minimum-norm least-squares solution without setting any control points, and discusses the technology to monitor slope behavior based on the changes in the distance obtained. Furthermore, the precision and accuracy of the measurement values obtained by the proposed technology is quantitatively verified, and its applicability to slope monitoring is examined.
KW - Digital camera images
KW - Digital photogrammetry
KW - Monitoring of slope displacements
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U2 - 10.1016/j.ijrmms.2005.12.002
DO - 10.1016/j.ijrmms.2005.12.002
M3 - Article
AN - SCOPUS:33645997323
SN - 1365-1609
VL - 43
SP - 756
EP - 766
JO - International Journal of Rock Mechanics and Minings Sciences
JF - International Journal of Rock Mechanics and Minings Sciences
IS - 5
ER -