VIRTUAL SKETCH ON AIR

Sketch-Based Virtual Human Modelling and Animation

Animated virtual humans created by skilled artists play a remarkable role in today’s public entertainment. However, ordinary users are still treated as audiences due to the lack of appropriate expertise, equipment, and computer skills. We developed a new method and a novel sketching interface, which enable anyone who can draw to “sketch-out” 3D virtual humans and animation. We devised a “Stick ...

Sketch-Based Navigation in 3D Virtual Environments

Navigation represents the fundamental interaction technique in 3D virtual environments (3D VEs) as it enables the users to explore the 3D world and to interact with its objects. Efficient navigation strategies and techniques are required, which take account of the users and their goals and avoid problems of general navigation methods, such as “getting-lost” situations and confusing view configu...

3D Sketch Stroke Segmentation and Fitting in Virtual Reality

In this paper we present a method which tries to automatically represent the designer’s intention while sketching threedimensional curves in a Virtual Reality environment. We translate conceptual sketch strokes into a suitable B-spline representation with a three step method. Firstly a data filter is used to eliminate redundancy and noise in ‘pen’ position recorded by the 3D tracking system. Se...

3D Sketch Recognition for Interaction in Virtual Environments

We present a comprehensive 3D sketch recognition framework for interaction within Virtual Environments that allows to trigger commands by drawing symbols, which are recognized by a multi-level analysis. It proceeds in three steps: The segmentation partitions each input line into meaningful segments, which are then recognized as a primitive shape, and finally analyzed as a whole sketch by a symb...

Sketch That Scene For MeCreating Virtual Worlds by FreehandDrawing