Laplacian face blending

Abstract

Designing realistic tridimensional facial models is a challenging task, not only due to the effort and artistic abilities required but also because human visual perception is very tuned to the processing of facial features. For this reason, rather than creating face models from scratch, artists usually start from a scanned model of a real person. In this work, we present a novel method for blending human faces in order to create a new one. In a nutshell, our proposal uses Laplacian smoothing to segregate layers of details from one or more faces, which are then integrated into a base face with the help of an interactive and visual editor. In particular, our method supports blending multiple faces and multiple sub-regions in those faces. Since our approach is intuitive and relatively easy to implement, it can be integrated into artistic pipelines aiming at designing human face models from preexisting ones.

Improving Realism of Facial Interpolation and Blendshapes with Analytical Partial Differential Equation-Represented Physics

“…It has also been used to develop an approach of splitting a face mesh into natural clusters and connecting each mesh segment with the relevant set of deformation controllers [10]. By using Laplacian smoothing to separate a three-dimensional model into a smoothed mesh and separated details, the linear model is used to obtain a linear combination of the separated details from multiple three-dimensional models and add the linear combination to the smoothed mesh of a target model to achieve facial blendshapes [11].…”

“…Substituting Equation (11) and its first and second derivatives with the time variable t into the ordinary differential Equation ( 8), we obtain the following:…”