Sketch Express: Facial Expressions Made Easy

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Miranda, JC (Author) Other; Alvarez, X (Author) Other; Orvalho, J (Author) Other; Gutierrez, D (Author) Other; António Augusto de Sousa (Author) FEUP; Orvalho, V (Author) FCUP

Conference proceedings International

Title: Proceedings - SBIM 2011: ACM SIGGRAPH / Eurographics Symposium on Sketch-Based Interfaces and Modeling

Pages: 87-94

ACM SIGGRAPH / Eurographics Symposium on Sketch-Based Interfaces and Modeling, SBIM 2011

Vancouver, BC, 5 August 2011 through 7 August 2011

Indexing

Scopus - 10 Citations

Other information

Authenticus ID: P-008-0D4

DOI: 10.2312/SBM/SBM11/087-094

Abstract (EN): Finding an effective control interface to manipulate complex geometric objects has traditionally relied on experienced users to place the animation controls. This process, whether for key framed or for motion captured animation, takes a lot of time and effort. We introduce a novel sketching interface control system inspired in the way artists draw, in which a stroke defines the shape of an object and reflects the user's intention. We also introduce the canvas, a 2D drawing region where the users can make their strokes, which determines the domain of interaction with the object. We show that the combination of strokes and canvases provides a new way to manipulate the shape of an implicit volume in space. And most importantly, it is independent from the 3D model rig. The strokes can be easily stored and reused in other characters, allowing retargeting of poses. Our interactive approach is illustrated using facial models of different styles. As a result, we allow rapid manipulation of 3D faces on the fly in a very intuitive and interactive way. Our informal study showed that first time users typically master the system within seconds, creating appealing 3D poses and animations in just a few minutes. © 2011 ACM.

Language: English

Type (Professor's evaluation): Scientific