3D Seabed Terrain Establishment Based on Improved Moving Green Function Spline Interpolation

An arithmetic for 3D Seabed Terrain Establishment using scattered depth data is designed and realized. This method combines the moving green function spline interpolation with distance-weighted average arithmetic based on analyzing their characteristic. It could learn from other´s strong points to offset one´s weakness. Furthermore, before the complex interpolation, we judge and preprocess the depth water points that we have searched. The results show that seabed terrain which is established by this method has high precision and good stability. Besides, comparing with the moving green function spline interpolation, the computing time of this method is shorter.