Sketching-Out Virtual Humans: A Smart Interface for Human Modelling and Animation

Mao, Chen, Qin, Sheng-feng and Wright, David (2007) Sketching-Out Virtual Humans: A Smart Interface for Human Modelling and Animation. In: SG 2007 - 8th International Symposium on Smart Graphics, 25th - 27th June 2007, Kyoto, Japan.

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Abstract

In this paper, we present a fast and intuitive interface for sketching out 3D virtual humans and animation. The user draws stick figure key frames first and chooses one for "fleshing-out" with freehand body contours. The system automatically constructs a plausible 3D skin surface from the rendered figure, and maps it onto the posed stick figures to produce the 3D character animation. A "creative model-based method" is developed, which performs a human perception process to generate 3D human bodies of various body sizes, shapes and fat distributions. In this approach, an anatomical 3D generic model has been created with three distinct layers: skeleton, fat tissue, and skin. It can be transformed sequentially through rigid morphing, fatness morphing, and surface fitting to match the original 2D sketch. An auto-beautification function is also offered to regularise the 3D asymmetrical bodies from users' imperfect figure sketches. Our current system delivers character animation in various forms, including articulated figure animation, 3D mesh model animation, 2D contour figure animation, and even 2D NPR animation with personalised drawing styles. The system has been formally tested by various users on Tablet PC. After minimal training, even a beginner can create vivid virtual humans and animate them within minutes.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	sketching interface, human modelling and animation, creative model-based method, multi-layered generic model, morphing
Subjects:	G400 Computer Science W200 Design studies
Department:	Faculties > Arts, Design and Social Sciences > Design
Depositing User:	Paul Burns
Date Deposited:	18 Feb 2019 18:25
Last Modified:	10 Oct 2019 23:33
URI:	http://nrl.northumbria.ac.uk/id/eprint/38100

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