Results 61 to 70 of about 562,132 (184)

Toward superfast three-dimensional optical metrology with digital micromirror device platforms [PDF]

open access: yes, 2014
Decade-long research efforts toward superfast three-dimensional (3-D) shape measurement leveraging the digital micromirror device (DMD) platforms are summarized.
Bell, Tyler, Zhang, Song
core   +3 more sources

Interest Points as a Focus Measure in Multi-Spectral Imaging [PDF]

open access: yes, 2013
A novel multi-spectral focus measure that is based on algorithms for interest point detection, particularly on the FAST (Features from Accelerated Segment Test), Fast Hessian and Harris-Laplace detector, is described in this paper.
Cika, P.   +3 more
core   +1 more source

A Combined Theory of Defocused Illumination and Global Light Transport [PDF]

open access: yes, 2012
Projectors are increasingly being used as light-sources in computer vision applications. In several applications, they are modeled as point light sources, thus ignoring the effects of illumination defocus.
Gupta, Mohit   +3 more
core   +2 more sources

Anisotropic Diffusion for Depth Estimation in Shape from Focus Systems [PDF]

open access: yes
Shape from focus is a monocular method that uses the camera’s focus as the primary indicator for depth estimation. The initial depth map is usually improved by penalizing the L2 regularizer as a smoothness constraint, which tends to smoothen the ...
Ahmad, Bilal   +2 more
core   +1 more source

Image classification using multiscale information fusion based on saliency driven nonlinear diffusion filtering [PDF]

open access: yes, 2014
In this paper, we propose saliency driven image multiscale nonlinear diffusion filtering. The resulting scale space in general preserves or even enhances semantically important structures such as edges, lines, or flow-like structures in the foreground ...
Hu, R.   +4 more
core   +1 more source

Design and Co-Simulation of Depth Estimation Using Simulink HDL Coder and Modelsim [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2016
In this paper a novel VHDL design procedure of depth estimation algorithm using HDL (Hardware Description Language) Coder is presented. A framework is developed that takes depth estimation algorithm described in MATLAB as input and generates VHDL code ...
FARIDA MEMON   +4 more
doaj  

Iterative Refinement of Uniformly Focused Image Set for Accurate Depth from Focus

open access: yesApplied Sciences, 2020
Estimating the 3D shape of a scene from differently focused set of images has been a practical approach for 3D reconstruction with color cameras. However, reconstructed depth with existing depth from focus (DFF) methods still suffer from poor quality ...
Sherzod Salokhiddinov, Seungkyu Lee
doaj   +1 more source

A review of three-dimensional imaging technologies for pavement distress detection and measurements [PDF]

open access: yes, 2015
With the ever-increasing emphasis on maintaining road assets to a high standard, the need for fast accurate inspection for road distresses is becoming extremely important.
Kamal, K, Mathavan, S, Rahman, M
core   +1 more source

GEOMETRIC ANALYSIS OF PLANAR SHAPES WITH APPLICATIONS TO CELL DEFORMATIONS

open access: yesImage Analysis and Stereology, 2015
Shape analysis is of great importance in many fields such as computer vision, medical imaging, and computational biology. In this paper we focus on a shape space in which shapes are represented by means of planar closed curves.
Ximo Gual-Arnau   +2 more
doaj   +1 more source

Shape memory polymer nanofibers and their composites: electrospinning, structure, performance and applications

open access: yesFrontiers in Materials, 2015
Shape memory polymers (SMPs) have been defined as a kind of smart materials under great investigation from academic research to industry applications. Research on SMPs and their composites, now incorporates a growing focus on nanofibers which offers new ...
Fenghua eZhang   +4 more
doaj   +1 more source

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