Journal ArticleDOI
Single image tree modeling
Ping Tan,Tian Fang,Jianxiong Xiao,Peng Zhao,Long Quan +4 more
- Vol. 27, Iss: 5, pp 108
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TLDR
A simple sketching method to generate a realistic 3D tree model from a single image by drawing at least two strokes in the tree image, including branches and leaves.Abstract:
In this paper, we introduce a simple sketching method to generate a realistic 3D tree model from a single image. The user draws at least two strokes in the tree image: the first crown stroke around the tree crown to mark up the leaf region, the second branch stroke from the tree root to mark up the main trunk, and possibly few other branch strokes for refinement. The method automatically generates a 3D tree model including branches and leaves. Branches are synthesized by a growth engine from a small library of elementary subtrees that are pre-defined or built on the fly from the recovered visible branches. The visible branches are automatically traced from the drawn branch strokes according to image statistics on the strokes. Leaves are generated from the region bounded by the first crown stroke to complete the tree. We demonstrate our method on a variety of examples.read more
Citations
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Proceedings ArticleDOI
Automatic reconstruction of tree skeletal structures from point clouds
TL;DR: This paper performs active laser scanning of real-world vegetation and presents an automatic approach that robustly reconstructs skeletal structures of trees, from which full geometry can be generated.
Proceedings ArticleDOI
Multiple view semantic segmentation for street view images
Jianxiong Xiao,Long Quan +1 more
TL;DR: This work proposes a simple but powerful multi-view semantic segmentation framework for images captured by a camera mounted on a car driving along streets and proposes a powerful approach within the same framework to enable large-scale labeling in both the 3D space and 2D images.
Journal ArticleDOI
Automatic reconstruction of tree skeletal structures from point clouds
TL;DR: Trees, bushes, and other plants are ubiquitous in urban environments, and realistic models of trees can add a great deal of realism to a digital urban scene.
Proceedings ArticleDOI
Texture-lobes for tree modelling
Yotam Livny,Soeren Pirk,Zhanglin Cheng,Feilong Yan,Oliver Deussen,Daniel Cohen-Or,Baoquan Chen +6 more
TL;DR: A lobe-based tree representation based on the observation that the tree's foliage details can be abstracted into canonical geometry structures, termed lobe-textures, which facilitates efficient storage and transmission of massive amounts of trees, e.g., from a server to clients for interactive applications in urban environments is presented.
Journal ArticleDOI
Structure from silhouettes: a new paradigm for fast sketch‐based design of trees
TL;DR: It is claimed that sketching the silhouettes of foliage at multiple scales is quicker and more intuitive for a user than having to sketch each branch of a tree, and this method allows it to incorporate botanical knowledge, enabling it to infer branches that connect in a plausible way to their parent branch and have a correct distribution in 3D.
References
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Journal ArticleDOI
"GrabCut": interactive foreground extraction using iterated graph cuts
TL;DR: A more powerful, iterative version of the optimisation of the graph-cut approach is developed and the power of the iterative algorithm is used to simplify substantially the user interaction needed for a given quality of result.
Journal ArticleDOI
What energy functions can be minimized via graph cuts
Vladimir Kolmogorov,R. Zabin +1 more
TL;DR: This work gives a precise characterization of what energy functions can be minimized using graph cuts, among the energy functions that can be written as a sum of terms containing three or fewer binary variables.
Journal ArticleDOI
Lazy snapping
TL;DR: Usability studies indicate that Lazy Snapping provides a better user experience and produces better segmentation results than the state-of-the-art interactive image cutout tool, Magnetic Lasso in Adobe Photoshop.
Journal ArticleDOI
Plant models faithful to botanical structure and development
TL;DR: A model which integrates botanical knowledge of the architecture of the trees: how they grow, how they occupy space, where and how leaves, flowers or fruits are located, etc is presented.
Proceedings ArticleDOI
Creation and rendering of realistic trees
Jason P. Weber,Joseph A. Penn +1 more
TL;DR: This work presents a model to create and render trees and explains a method to seamlessly degrade the tree geometry at long ranges to optimize the drawing of large quantities of trees in forested areas.