Camera arrangement for depth and image correspondence is very important to the computer vision. Two conventional comera arrangements for stereo computer vision are lateral model and axial motion model. In this paper, using the axial motion stereo camera model, the algorithm for camera focal length measurement and the surface smoothness with the radiance-irradiance is proposed fro 3-dimensional image correspondence on stereo computer vision. By adapting the above algorithm, camera focal length can be measured precisely and the resolution of 3-dimensional image correspondence has been improved comparing to that of the axial motion model without the radiance-irradiance relation.

A two dimensional numerical model as well as theoretical formula are used to investigate the seich characteristics of Mok-po harbour. The natural periods of the first two modes computed from the numerical mode are about 34 minutes and 12 minutes which are well consistent with those by the theoretical formula.