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177,509
The quadtree and related hierarchical data structures
- ACM Computing Surveys
, 1984
"... A tutorial survey is presented of the quadtree and related hierarchical data structures. They are based on the principle of recursive decomposition. The emphasis is on the representation of data used in applications in image processing, computer graphics, geographic information systems, and robotics ..."
Abstract
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Cited by 541 (12 self)
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A tutorial survey is presented of the quadtree and related hierarchical data structures. They are based on the principle of recursive decomposition. The emphasis is on the representation of data used in applications in image processing, computer graphics, geographic information systems
HIERARCHICAL DATA STRUCTURE FOR REAL-TIME BACKGROUND SUBTRACTION
"... This paper seeks to increase the efficiency of background subtraction algorithms for motion detection. Our method uses a quadtree-base hierarchical framework that samples a small portion of the pixels in each image and yet produces motion detection results that are very similar compared to the conve ..."
Abstract
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Cited by 6 (1 self)
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to the conventional methods that raster scan entire images. The hierarchical data structure presented in this paper can be used with any background subtraction algorithm that employs background modeling and motion detection on a per-pixel basis. We have tested our method using two common background subtraction
Hierarchical data structures for interactive volume visualization
- IEEE Visualization
, 1995
"... In order to interactively investigate large-scale 3D data sets, we propose an improved hierarchical data structure for structured grids and an original hierarchical data structure for unstructured grids. These multi-tiered implementations allow the user to interactively control both the local and gl ..."
Abstract
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Cited by 4 (4 self)
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In order to interactively investigate large-scale 3D data sets, we propose an improved hierarchical data structure for structured grids and an original hierarchical data structure for unstructured grids. These multi-tiered implementations allow the user to interactively control both the local
Data Structures I Hierarchical Data Structures
"... This is the first part of a two-part overview of the use of hierarchical data structures and algorithms in com-puter graphics. In Part I, the focus is on fundamentals. Part II focuses on more advanced applications. Methods based on hierarchical data structures and algorithms have found many uses in ..."
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This is the first part of a two-part overview of the use of hierarchical data structures and algorithms in com-puter graphics. In Part I, the focus is on fundamentals. Part II focuses on more advanced applications. Methods based on hierarchical data structures and algorithms have found many uses
An Overview of Quadtrees, Octrees, and Related Hierarchical Data Structures
- NATO ASI Series
, 1988
"... An overview of hierarchical data structures for representing images, such as the quadtree and octree, is presented. They are based on the principle of recursive decomposition. The emphasis is on the representation of data used in applications in computer graphics, computer-aided design, robotics, co ..."
Abstract
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Cited by 22 (2 self)
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An overview of hierarchical data structures for representing images, such as the quadtree and octree, is presented. They are based on the principle of recursive decomposition. The emphasis is on the representation of data used in applications in computer graphics, computer-aided design, robotics
A Population Analysis for Hierarchical Data Structures
- In Proceedings of the SIGMOD Conference
, 1987
"... A new method termed population analysis 1s presented for approxlmatmg the dlstrlbutlon of node occupancies m hierarchical data structures which store a variable number of geometric data items per node The basic idea 1s to describe a dynamic data structure as a set of populations which are per-mitted ..."
Abstract
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Cited by 35 (19 self)
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A new method termed population analysis 1s presented for approxlmatmg the dlstrlbutlon of node occupancies m hierarchical data structures which store a variable number of geometric data items per node The basic idea 1s to describe a dynamic data structure as a set of populations which are per
The NESTOR Framework: How to Handle Hierarchical Data Structures
- in Proc. 13th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2009
, 2009
"... Abstract. In this paper we study the problem of representing, manag-ing and exchanging hierarchically structured data in the context of a Dig-ital Library (DL). We present the NEsted SeTs for Object hieRarchies (NESTOR) framework defining two set data models that we call: the “Nested Set Model (NS-M ..."
Abstract
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Cited by 11 (10 self)
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Abstract. In this paper we study the problem of representing, manag-ing and exchanging hierarchically structured data in the context of a Dig-ital Library (DL). We present the NEsted SeTs for Object hieRarchies (NESTOR) framework defining two set data models that we call: the “Nested Set Model (NS
Efficient Edit Propagation Using Hierarchical Data Structure
"... Abstract—This paper presents a novel unified hierarchical structure for scalable edit propagation. Our method is based on the key observation that in edit propagation, appearance varies very smoothly in those regions where the appearance is different from the user-specified pixels. Uniformly samplin ..."
Abstract
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Cited by 3 (1 self)
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and memory, while achieving visually same results. Experimental results demonstrate the efficiency and effectiveness of our approach on high resolution photographs and videos. Index Terms—Tone adjustment, Gaussian mixture model, hierarchical Data Structure, high dynamic range imaging, tone mapping. F 1
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