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You searched on: Topic Area: Imaging Sorted by: title

Displaying records 11 to 20 of 54 records.
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11. Benchmarks, Performance Evaluation and Contests for 3D Shape Retrieval
Topic: Imaging
Published: 12/20/2010
Authors: Afzal A Godil, Zhouhui Lian, Helin Dutagaci
Abstract: Benchmarking of 3D Shape retrieval allows developers and researchers to compare the strengths of different algorithms on a standard dataset. Here we discuss the different steps involved in developing a benchmark and some of the issues involved. We th ...

12. CM-BOF: Visual Similarity based 3D Shape Retrieval Using Clock Matching and Bag-of-Features
Topic: Imaging
Published: 6/6/2013
Authors: Afzal A Godil, Zhouhui Lian
Abstract: Content-based 3D object retrieval has be- come an active topic in many research communities. In this paper, we propose a novel visual similarity based 3Dshaperetrievalmethod(CM-BOF)usingClockMatch- ing and Bag-of-Features. Specifically, pose normal ...

13. Calibrating multiple microscopes with a smartphone
Topic: Imaging
Published: 4/1/2014
Authors: Peter Bajcsy, Mary C Brady, Jacob Siegel
Abstract: Summary: The iPhone liquid crystal displays allows efficient and accurate calibration of an inexpensive array of handheld microscopes for measuring microscopic dynamic events over a large field of view. How does one build an inexpensive array of ha ...

14. Deep-subwavelength Nanometric Image Reconstruction using Fourier Domain Optical Normalization
Topic: Imaging
Published: 11/5/2015
Authors: Jing Qin, Richard M Silver, Bryan M Barnes, Hui Zhou, Ronald G Dixson, Mark Alexander Henn
Abstract: Quantitative optical measurements of deep sub-wavelength, three-dimensional, nanometric structures with sensitivity to sub-nanometer details address an ubiquitous measurement challenge. A Fourier domain normalization approach is used in the Fourier ...

15. 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 ...

16. 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 ...

17. 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 ...

18. 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 ...

19. 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 ...

20. 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 ...

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