NDLI: Interactive modeling of tree bark

Content Provider	IEEE Xplore Digital Library
Author	Xi Wang Lifeng Wang Ligang Liu Shimin Hu Baining Guo
Copyright Year	2003
Description	Author affiliation: Tsinghua Univ., Beijing, China (Xi Wang)
Abstract	There exist many computer graphics techniques which could achieve high quality tree generation. However, only few works focus on realistic modeling of tree bark. Difficulties lie in the complex appearance of the bark surfaces from a single image. We address three main issues here: feature specification; height field assignment; and texture correction. For feature specification, we use texton channel analysis to specify a variant of common bark features, inluding ironbark, vertical and horizontal fractures, tessellation, furrowed cork, and lenticels. For height field assignment, we develop an intuitive and easy-to-use user interface (UI). Here similarity-based texture editing is used for assigning height fields within a texton channel mask. For texture correction, we use the modeled height fields to eliminate the underlying lighting effects in a captured texture. Our modeling system is image-based: it takes as input a bark image and produces as output a textured height field representing a bark sample. We demonstrate that out method is an effective and easy-to-use technique to interactively model a variety of photo realistic bark surfaces.
Sponsorship	Sillicon Graphics Inc iCore Univ. Calgary
Starting Page	83
Ending Page	90
File Size	984144
Page Count	8
File Format	PDF
ISBN	0769520286
DOI	10.1109/PCCGA.2003.1238250
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-08
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tree graphs Computer graphics Shape Rendering (computer graphics) Image segmentation Biological system modeling X-ray imaging Image reconstruction Asia Surface cracks
Content Type	Text
Resource Type	Article

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