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468
Retrieval of 3D Articulated Objects using a graph-based representation
"... Most of the approaches which address the problem of 3D object retrieval, use global descriptors of the objects which fail to consistently compensate for the intra-class variability of articulated objects. In this paper, a retrieval methodology is presented which is based upon a graph-based object re ..."
Abstract
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Cited by 8 (1 self)
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Most of the approaches which address the problem of 3D object retrieval, use global descriptors of the objects which fail to consistently compensate for the intra-class variability of articulated objects. In this paper, a retrieval methodology is presented which is based upon a graph-based object
Robot Motion Planning: A Distributed Representation Approach
, 1991
"... We propose a new approach to robot path planning that consists of building and searching a graph connecting the local minima of a potential function defined over the robot’s configuration space. A planner based on this approach has been implemented. This planner is considerably faster than previous ..."
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Cited by 402 (26 self)
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We propose a new approach to robot path planning that consists of building and searching a graph connecting the local minima of a potential function defined over the robot’s configuration space. A planner based on this approach has been implemented. This planner is considerably faster than previous
Retrieving articulated 3-D models using medial surfaces
, 2008
"... We consider the use of medial surfaces to represent symmetries of 3-D objects. This allows for a qualitative abstraction based on a directed acyclic graph of components and also a degree of invariance to a variety of transformations including the articulation of parts. We demonstrate the use of this ..."
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Cited by 61 (2 self)
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We consider the use of medial surfaces to represent symmetries of 3-D objects. This allows for a qualitative abstraction based on a directed acyclic graph of components and also a degree of invariance to a variety of transformations including the articulation of parts. We demonstrate the use
Graph-Based Combinations of Fragment Descriptors . . .
, 2012
"... 3D Object Retrieval is an important field of research with many application possibilities. One of the main goals in this research is the development of discriminative methods for similarity search. The descriptor-based approach to date has seen a lot of research attention, with many different extrac ..."
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3D Object Retrieval is an important field of research with many application possibilities. One of the main goals in this research is the development of discriminative methods for similarity search. The descriptor-based approach to date has seen a lot of research attention, with many different
Partial and approximate symmetry detection for 3D geometry
- ACM TRANSACTIONS ON GRAPHICS
, 2006
"... “Symmetry is a complexity-reducing concept [...]; seek it everywhere.” Alan J. Perlis Many natural and man-made objects exhibit significant symmetries or contain repeated substructures. This paper presents a new algorithm that processes geometric models and efficiently discovers and extracts a com ..."
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Cited by 176 (26 self)
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extracts potential significant symmetries of the object, followed by a verification step. Based on a statistical sampling analysis, we provide theoretical guarantees on the success rate of our algorithm. The extracted symmetry graph representation captures important highlevel information about
Novel skeletal representation for articulated creatures
- In Proc. European Conf. on Computer Vision
, 2004
"... Abstract. Volumetric structures are frequently used as shape descriptors for 3D data. The capture of such data is being facilitated by developments in multi-view video and range scanning, extending to subjects that are alive and moving. In this paper, we examine vision-based modeling and the related ..."
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Cited by 35 (1 self)
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and the related representation of moving articulated creatures using spines. We define a spine as a branching axial structure representing the shape and topology of a 3D object’s limbs, and capturing the limbs’ correspondence and motion over time. Our spine concept builds on skeletal representations often used
3D CAD Model Representation and Retrieval Based on Hierarchical Graph
"... Abstract—Due to 3D CAD models are often characterized with complicated geometry and topology, how to help the designers quickly and accurately find the object models from the database containing massive amount of models using the relatively rough query instance is still a big challenge. In this pape ..."
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. In this paper, a novel representation of 3D CAD models using hierarchical graph (HG) is proposed. The model descriptors are divided into shape feature descriptors and topology relationship descriptors. These two descriptors can be extracted from HG. In this way, coarse-grained and fine-grained 3D CAD model
Graph-Based Topic-Focused Retrieval in Distributed Camera Network
"... Abstract—Wide-area wireless camera networks are being in-creasingly deployed in many urban scenarios. The large amount of data generated from these cameras pose significant information processing challenges. In this work, we focus on representation, search and retrieval of moving objects in the scen ..."
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and context edges linking different objects within a spatial-temporal proximity. We propose a manifold ranking method with a greedy diversification step to order the relevant items based on similarity as well as diversity within the database. Detailed experimental results using video data from a 10-camera
View-based 3-d object recognition using shock graphs
- In Proceedings, Internal Conference on Pattern Recognition
, 2002
"... The shock graph is an emerging shape representation for object recognition, in which a 2-D silhouette is decomposed into a set of qualitative parts, captured in a directed acyclic graph. Although a number of approaches have been proposed for shock graph matching, these approaches do not address the ..."
Abstract
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Cited by 16 (3 self)
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the equally important indexing problem. We extend our previous work in both shock graph matching and hierarchical structure indexing to propose the first unified framework for view-based 3-D object recognition using shock graphs. The heart of the framework is an improved spectral characterization of shock
Tools for 3D-object retrieval: Karhunen-Loeve Transform and spherical harmonics
- IEEE MMSP 2001
, 2001
"... Abstract- We present tools for 3D object retrieval in which a model, a polygonal mesh, serves as a query and similar objects are retrieved from a collection of 3D objects. Algorithms proceed first by a normalization step (pose estimation) in which models are transformed into a canonical coordinate f ..."
Abstract
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Cited by 98 (13 self)
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Abstract- We present tools for 3D object retrieval in which a model, a polygonal mesh, serves as a query and similar objects are retrieved from a collection of 3D objects. Algorithms proceed first by a normalization step (pose estimation) in which models are transformed into a canonical coordinate
Results 1 - 10
of
468
