In this paper, a variational iteration method (VIM), which is a well-known method for solving nonlinear equations, has been employed to solve an inverse parabolic partial differential equation. Inverse problems in partial differential equations can be used to model many real problems in engineering and other physical sciences. The VIM is to construct correction functional using general Lagr...

We have developed a remote control robot for searching for victims inside buildings during disasters. We used the approach of searching inside buildings by displaying a map. Concerning displays, several studies have been done on constructing 3D indoor maps from laser scan data acquired by a laser scanner. However, it is difficult to construct 3D maps in a vast or complicated space. Conventional...

Simultaneous localization and mapping (SLAM) is a technique to computationally construct or update a map of an unknown environment while simultaneously tracking a system’s location within the environment. In particular, vision-based SLAM employs a visual camera as a primary sensor. This system attempts to perform simultaneous tracking and feature mapping without additional sensing units, such a...

We present a fingerprint matching scheme that utilizes a ridge feature map to match fingerprint images. The technique described here obviates the need for extracting minutiae points to match fingerprint images. The proposed scheme uses a set of 16 Gabor filters, whose spatial frequencies correspond to the average inter-ridge spacing in fingerprints, is used to capture the ridge strength at equa...

We present and compare different numerical schemes for the integration of the variational equations of autonomous Hamiltonian systems whose kinetic energy is quadratic in the generalized momenta and whose potential is a function of the generalized positions. We apply these techniques to Hamiltonian systems of various degrees of freedom and investigate their efficiency in accurately reproducing ...