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We present a method for discovering the structure of trees in 3D point clouds by linking wavelets with shape grammars. Given a range scan of a tree we find a grammar that can reproduce that tree, and others like it, with sub-voxel accuracy. The grammar ...

We present a method to generate models for trees in which we first create a weighted graph, then places endpoints and root point and plan least-cost paths from endpoints to the root point. The collection of resulting paths form a branching structure. We ...

Many applications, such as games, demand massive collections of trees and vegetation in general. The solutions for rendering these environments fall into two possible categories: controlling the amount of geometry displayed, and billboard-based ...

Modeling trees in a plausible and fast way is a challenge in virtual reality. A new sketch-based tree modeling method is presented in this paper. A realistic 3D tree model can be generated automatically from freehand sketches of users: sketches of main ...

Virtual trees are widely used in computer games, cartoons, and internet. In this paper, we propose a new method for tree modeling from sketches. The user draws several strokes to mark up main structures and crown silhouettes of a tree on two images as ...

This article features some of the latest advances in multimedia technology.

Tree modeling is challenging because of its complexity. In this paper, an interactive tree modeling system is devised based on fractal. The modeling is decomposed into two parts: the branches generated with fractal method and the tree whole shape ...

In this paper, we describe a new system for converting a user's freehand sketch of a tree into a full 3D model that is both complex and realistic-looking. Our system does this by probabilistic optimization based on parameters obtained from a database of ...

In this paper, we describe a new system for converting a user's freehand sketch of a tree into a full 3D model that is both complex and realistic-looking. Our system does this by probabilistic optimization based on parameters obtained from a database of ...

The main objective of this study was to compare methods to estimate the number of trees and individual tree height using LiDAR data and aerial photography. A Korean pine tree study area for these techniques was selected the methods of watershed ...

The main objective of this study was to compare methods to estimate the number of trees and individual tree height using remote sensing data. A Korean pine tree study area for these techniques was selected. the methods of watershed segmentation, region-...

We introduce in this paper an interface for modeling botanical trees that we term a sketch-and-spray interface. In using the interface, a user would sketch out various types of strokes to construct the main structures of a tree. A user could use a ...

In this paper, we present a tree-based, full covariance hidden Markov modeling technique for automatic speech recognition applications. A multilayered tree is built first to organize all covariance matrices into a hierarchical structure. Kullback-...

In this paper, we propose a semi-automatic technique for modeling plants directly from images. Our image-based approach has the distinct advantage that the resulting model inherits the realistic shape and complexity of a real plant. We designed our ...

In this paper, we propose a semi-automatic technique for modeling plants directly from images. Our image-based approach has the distinct advantage that the resulting model inherits the realistic shape and complexity of a real plant. We designed our ...