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You searched on: Topic Area: Imaging

Displaying records 21 to 30 of 43 records.
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21. An evaluation of local shape descriptors for 3D shape retrieval
Topic: Imaging
Published: 9/26/2012
Authors: Afzal A Godil, Sarah Y. Tang
Abstract: As the usage of 3D models increases, so does the importance of developing accurate 3D shape retrieval algorithms. A common approach is to calculate a shape descriptor for each object, which can then be compared to determine two objects‰ similarity. H ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911358

22. Feature-preserved 3D Canonical Form
Topic: Imaging
Published: 7/28/2012
Authors: Afzal A Godil, Zhouhui Lian
Abstract: Abstract Measuring the dissimilarity between non-rigid objects is a challenging problem in 3D shape retrieval. One potential solution is to construct the models‰ 3D canonical forms (i.e., isometry-invariant representations in 3D Euclidean domain) on ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911523

23. Web Accessible Image Similarity Measurements
Topic: Imaging
Published: 7/17/2012
Authors: Antoine Vandecreme, Paul Khouri Saba, Benjamin J Long, Joe Chalfoun, Peter Bajcsy, Mary C Brady
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911666

24. Evaluation of 3D Interest Point Detection Techniques via Human-generated Ground Truth
Topic: Imaging
Published: 6/29/2012
Authors: Afzal A Godil, Helin Dutagaci
Abstract: In this paper, we present an evaluation strategy based on human-generated ground truth to measure the performance of 3D interest point detection techniques. We provide quantitative evaluation measures that relate automatically detected interest point ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911521

25. A New Convexity Measurement for 3D Meshes
Topic: Imaging
Published: 6/16/2012
Authors: Afzal A Godil, Zhouhui Lian
Abstract: This paper presents a novel convexity measurement for 3D meshes. The new convexity measure is calculated by minimizing the ratio of the summed area of valid regions in a mesh‰s six views, which are projected on faces of the bounding box whose edg ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911359

26. SHREC‰12 Track: Generic 3D Shape Retrieval
Topic: Imaging
Published: 5/13/2012
Authors: Bo Li, Afzal A Godil
Abstract: Generic 3D shape retrieval is a fundamental research area in the field of content-based 3D model retrieval. The aim of this track is to measure and compare the performance of generic 3D shape retrieval methods implemented by different participant ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911044

27. SHREC‰12 Track: Sketch-Based 3D Shape Retrieval
Topic: Imaging
Published: 5/13/2012
Authors: Bo Li, Afzal A Godil
Abstract: Sketch-based 3D shape retrieval has become an important research topic in content-based 3D object retrieval. The aim of this track is to measure and compare the performance of sketch-based 3D shape retrieval methods implemented by different parti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911047

28. Maximum Entropy and Time-Domain Kramers-Kronig Phase Retrieval Approaches are Functionally Equivalent for CARS Micro-Spectroscopy
Topic: Imaging
Published: 4/27/2012
Authors: Marcus T Cicerone, Khaled A. Aamer, Young Jong Lee, Eric Vartiainen
Abstract: Phase retrieval methods are used to recover Raman spectra from multiplex and broadband CARS signals. Two methods are in widespread use, one based on maximum entropy (MEM), and one based on a modified time-domain Kramers-Kronig (TDKK) method. He ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909437

29. An Evaluation of Local Shape Descriptors for 3D Shape Retrieval
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7812
Topic: Imaging
Published: 3/8/2012
Author: Sarah Y. Tang
Abstract: As the usage of 3D models increases, so does the importance of developing accurate 3D shape retrieval algorithms. Most prominently, shape descriptors are used to describe the geometric and topological properties of objects and compared to determine t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909219

30. Salient Local 3D Features for 3D Shape Retrieval
Topic: Imaging
Published: 4/7/2011
Authors: Afzal A Godil, Asim Wagan
Abstract: In this paper we describe a new formulation for the 3D salient local features based on the voxel grid inspired by the Scale Invariant Feature Transform (SIFT). We use it to identify the salient keypoints (invariant points) on a 3D voxelized model and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907645



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