quadtree
英
美
网络 四叉树; 四元树; 四叉树结构; 量化树
双语例句
- Based on the spherical icosahedron case of Equal Angle Ratio Projections ( EARP), a new Spherical Triangle regional Quadtree ( EARPIH) is constructed.
在等弧长比投影族球面正二十面体投影基础上设计了球面三角四叉树剖分模型（EARPIH）。 - A Watermarking Scheme for Medical Images Based on the Quadtree Structures
基于小波树结构的医学图像复合水印算法 - Study on the Geometric Modelling Method with Quadtree Array in Upgrading Simulation Efficiency
提高仿真效率的四叉树阵列的几何建模方法研究 - Fast Fractal Image Encoding Based on Novel Quadtree Partition
基于新型四叉树分割的快速分形图像编码 - An algorithm for large-scale terrain generation based on quadtree structure
基于四叉树结构的大规模地形生成算法 - A study on rendering of large three-dimensional terrain for Multi-resolution LOD based on quadtree
一种基于四叉树的动态多分辨率LOD大规模三维地形绘制研究 - Object-Oriented Design and Implementation of Quadtree Pyramid Terrain Model
四叉树地形金字塔模型面向对象的设计与实现 - This paper presents an efficient quadtree based fractal image coding scheme in wavelet transform domain based on the wavelet based theory of fractal image compression introduced by Davis.
本文介绍一种通过卫星传送、由移动式地面站辅助收集新闻的先进技术，其中包括图象编码技术、图象压缩技术以及纠错技术等。 - The algorithm combines the quadtree decomposition of image, with making use of the characteristic of the lowest frequency coefficients in DWT domain to construct non-watermark.
该算法结合图像的四叉树分解原理，利用图像小波域低频系数的特征来构造零水印。 - Terrain 3D Visualization based on Dynamic LOD Quadtree Arithmetic
基于动态LOD四叉树算法的地形三维可视化 - A Quadtree Structure Based on Storing Ascendant Attribute and Its Construction Algorithm
一种基于优势属性存储的四叉树结构及其构建算法 - Tiled Block Quadtree Terrain Rendering Algorithm based on GPU
一种基于GPU的瓦片块四叉树地形绘制算法 - Study on Interest Management Based on Quadtree in Distributed Virtual Environment
DVE中基于四叉树的兴趣管理研究 - In the application of image database and data compression, the linear quadtree methods such as GD are studied very much.
在图象数据库的存贮结构及图象的数据压缩等应用中，GD等这类线性四元树表示方法得到了大量的研究。 - This paper advances and analyses an algorithm converting Raster to Quadtree.
本文提出并分析了一个栅格&四叉树结构间的变换算法。 - Technology of the Real-time Rendering of Large-scale Terrain Based on Quadtree
基于四叉树的大规模实时地形渲染技术研究 - Real-time collaborative cartography based on region version by quadtree index
基于四叉树索引的区域版本实时协同绘图系统 - Image Retrieval Based on Quadtree and Edge Invariant Moments
基于四叉树和边界不变矩的图像检索 - Secondly, the interactive rendering process of ground objects in a large area was introduced, and the steps of view-frustum culling of quadtree nodes and occlusion culling were described particularly.
其次，描述了大区域地物场景交互绘制的流程，并对节点级视锥剔除阶段和遮挡剔除阶段进行了重点介绍。 - Analyze the Characteristics of the linear quadtree and linear octree and describe the linear octree encoding based on the decimal system.
分析了线性四叉树、线性八叉树两种数据结构的特点，介绍了一种基于十进制的线性八叉树编码技术。 - An Adjacent Searching Algorithm of Degenerate Quadtree Grid on Spherical Facet
球面退化四叉树格网单元的邻近搜索算法 - The proposed algorithm is combined with adaptive quadtree partition to obtain higher compression ratio and best image quality.
我们将新的算法结合到自适应的四叉树编码方法中，实验结果表明新算法在压缩比和图像质量上均有所提高。 - Secondly, an adaptive block partition scheme is introduced by developing the quadtree partition method. Thirdly.
其次，发展了图象四叉树划分方法，提出了一种自适应块划分方法； - According to the traditional fractal compression coding, given a new arithmetic based on quadtree structure.
同时对传统的分形压缩编码方法进行了改进，给出了一种新的基于四叉树分割的分形图像压缩编码算法。 - Quadtree coding is currently a valuable method in image processing and computer graphics.
四叉树编码方法是目前图象处理和计算机图形学中的一种有效方法。 - At last, we realize a real-time dynamic multiresolution terrain model based on Quadtree.
最后使用一个简单高效的节点评价函数，编程实现了基于四叉树的动态多分辨率三维地形。 - In this paper, a storing model for quadtree called RVA tree is presented.
本文提出了一种四元树的存储模式&RVA存储结构。 - The experiment results show that the adaptive threshold method improves the adapt of fractal quadtree coding in wavelet domain.
仿真实验结果表明，这一自适应门限的编码方法提高了小波分形四叉树图像压缩方法的适应性。 - This article introduces a digital watermarking technology based on adaptive quadtree fractal coding.
提出了一种基于自适应四叉树分形编码的数字水印技术。 - The thesis designs and implements the octree and the quadtree sampling algorithms to decrease point cloud.
设计实现了基于八叉树与四叉树模型的降采样算法，使用此算法对点云进行了降采样处理。