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Displaying records 11 to 20 of 43 records.
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11. Efficient Motion Vector Interpolation for Error Concealment of H.264/AVC
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7733
Topic: Imaging
Published: 3/1/2011
Author: Hamid Gharavi
Abstract: In video communications the compressed video stream is very likely to be corrupted by channel errors. In order to combat these channel errors, many methods have been proposed. In this paper, a new method for motion vectors (MVs) interpolation with th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907185

12. 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

13. Exploring Local Features and the Bag-of-Visual-Words Approach for BioImage Classification
Topic: Imaging
Published: 11/5/2013
Authors: Afzal A Godil, Asim Wagan
Abstract: With recent advances in imaging technologies large numbers of bioimages are currently being acquired. Automated classification of these bio-images is a very important and challenging problem. Here we investigate the capabilities of local features a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914571

14. Facial Shape Analysis and Sizing System
Topic: Imaging
Published: 7/24/2009
Author: Afzal A Godil
Abstract: The understanding of shape and size of the human head and faces is vital for design of facial wear products, such as respirators, helmets, eyeglasses and for ergonomic studies. 3D scanning is used to create 3D databases of thousands of humans from ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902215

15. Feature Measures for the Segmentation of Neuronal Membrane using Machine Learning Algorithm
Topic: Imaging
Published: 1/6/2014
Authors: Afzal A Godil, Saadia S. Iftikhar
Abstract: In this paper, we present a Support Vector Machine (SVM) based pixel classifier for a semi-automated segmentation algorithm to detect neuronal membrane structures in stacks of electron microscopy images of brain tissue samples. This algorithm uses ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914363

16. 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

17. Hybrid shape descriptor and meta similarity generation for non-rigid and partial 3D model retrieval
Topic: Imaging
Published: 7/26/2013
Author: Afzal A Godil
Abstract: Non-rigid and partial 3D model retrieval are two significant and challenging research directions in the field of 3D model retrieval. Little work has been done in proposing a hybrid shape descriptor that works for both retrieval scenarios, let alone ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913720

18. Investigating the Bag-of-Words Method for 3D Shape Retrieval
Topic: Imaging
Published: 6/30/2010
Authors: Afzal A Godil, Xiaolan Li
Abstract: This paper investigates the capabilities of the Bag-of-Words (BW) method in the 3D shape retrieval field. The contributions of this paper are: 1) the 3D shape retrieval task is categorized from different points of view: specific vs. generic, part ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905907

19. Local Thickness and Anisotropy Approaches to Characterize Pore Size Distribution of 3D Porous Networks
Topic: Imaging
Published: 3/6/2009
Authors: Martin Y Chiang, Xianfeng Wang
Abstract: We have proposed a superseding algorithm approach for image analysis of the pore size distribution (PSD) of porous media. This approach adapts the intrinsic definition of skeletonization for an object representation to the characterization of the PS ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852504

20. 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



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