High Relief Modeling from 3D Object Through Laplacian-based Surface Deformation

Abstract

High relief is a sculpture where more than half of 3D figure is attached onto a background plane. The main problem of high relief modeling from 3D object is how to transform the 3D geometry within limited depth range. This paper presents a novel method to generate high reliefs, which benefits from the technique of Laplacian-based mesh deformation. Given a 3D object as input, we first select a set of handle points on the input model and compute their offset distances to the background. Taking these handle points as constraints, we then optimize the depth field by solving a bi-Laplacian-based linear system. The deformed object is ensured to attach onto the background with preserved depth structure and geometrical details. Our method is effective in dealing with different types of input shapes, even the ones with topology-disconnected components. Experimental results and comparisons with previous method demonstrate the effectiveness of the proposed method.