Interactive Sketch Generation

Hyung W. Kang, Wenjie He, Charles K. Chui, Uday Chakraborty

Abstract

In this paper, we propose an interactive system for generating artistic sketches from images, based on stylized multiresolution B-spline curve model and livewire contour tracing paradigm. Our multiresolution B-spline stroke model allows interactive and continuous control of style and shape of the stroke at any level of details. Especially, we introduce a novel mathematical paradigm called wavelet frame to provide essential properties for multiresolution stroke editing, such as feature point preservation, locality, time-efficiency, good approximation, etc. The livewire stroke map construction leads the user-guided stroke to automatically lock on to the target contour, allowing fast and accurate sketch drawing. We classify the target contours as outlines and interior flow, and develop two respective livewire techniques based on extended graph formulation and vector flow field. Experimental results show that the proposed system facilitates quick and easy generation of artistic sketches of various styles.

Keywords

Non-photorealistic rendering, Interactive sketch, Wavelet frame, Multiresolution B-spline, Livewire contour tracing

Paper

Paper in PDF

Citation

H. Kang, W. He, C. Chui, U. Chakraborty. "Interactive Sketch Generation". The Visual Computer, Vol. 21, No. 8, pp. 821-830, 2005. (Proc. Pacific Graphics 2005)

@article{Kang:2005:ISG,
author = {Hyung W. Kang and Wenjie He and Charles K. Chui and Uday Chakraborty},
title = {Interactive Sketch Generation},
journal = {The Visual Computer},
volume = {21},
number = {8},
pages = {821-830},
year = "2005"

}