Current Search: Pava, Diego F. (x)
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Title
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Nonredundant spatio-temporal arrays for time-average Fourier telescopy.
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Creator
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Pava, Diego F., Graduate College
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Date Issued
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2012-03-30
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PURL
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http://purl.flvc.org/fcla/dt/3348613
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Format
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Document (PDF)
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Title
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Object detection in low resolution video sequences.
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Creator
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Pava, Diego F., Graduate College
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Date Issued
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2010-04-09
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PURL
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http://purl.flvc.org/fcla/dt/3176863
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Format
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Document (PDF)
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Title
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Non redundant spatiotemporal array for time average fourier telescopy applications.
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Creator
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Pava, Diego F., Rhodes, William T., Graduate College
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Date Issued
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2013-04-12
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PURL
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http://purl.flvc.org/fcla/dt/3361950
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Subject Headings
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Fourier transform optics, Optics--Research
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Format
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Document (PDF)
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Title
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Object detection in low resolution video sequences.
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Creator
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Pava, Diego F., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
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Abstract/Description
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With augmenting security concerns and decreasing costs of surveillance and computing equipment, research on automated systems for object detection has been increasing, but the majority of the studies focus their attention on sequences where high resolution objects are present. The main objective of this work is the detection and extraction of information of low resolution objects (e.g. objects that are so far away from the camera that they occupy only tens of pixels) in order to provide a...
Show moreWith augmenting security concerns and decreasing costs of surveillance and computing equipment, research on automated systems for object detection has been increasing, but the majority of the studies focus their attention on sequences where high resolution objects are present. The main objective of this work is the detection and extraction of information of low resolution objects (e.g. objects that are so far away from the camera that they occupy only tens of pixels) in order to provide a base for higher level information operations such as classification and behavioral analysis. The system proposed is composed of four stages (preprocessing, background modeling, information extraction, and post processing) and uses context based region of importance selection, histogram equalization, background subtraction and morphological filtering techniques. The result is a system capable of detecting and tracking low resolution objects in a controlled background scene which can be a base for systems with higher complexity.
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Date Issued
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2009
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PURL
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http://purl.flvc.org/FAU/186685
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Subject Headings
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Computer systems, Security measures, Remote sensing, Image processing, Digital techniques, Imaging systems, Mathematical models
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Format
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Document (PDF)
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Title
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Transmitter-receiver system for time average fourier telescopy.
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Creator
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Pava, Diego F., Rhodes, William T., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
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Abstract/Description
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Time Average Fourier Telescopy (TAFT) has been proposed as a means for obtaining high-resolution, diffraction-limited images over large distances through ground-level horizontal-path atmospheric turbulence. Image data is collected in the spatial-frequency, or Fourier, domain by means of Fourier Telescopy; an inverse two dimensional Fourier transform yields the actual image. TAFT requires active illumination of the distant object by moving interference fringe patterns. Light reflected from the...
Show moreTime Average Fourier Telescopy (TAFT) has been proposed as a means for obtaining high-resolution, diffraction-limited images over large distances through ground-level horizontal-path atmospheric turbulence. Image data is collected in the spatial-frequency, or Fourier, domain by means of Fourier Telescopy; an inverse two dimensional Fourier transform yields the actual image. TAFT requires active illumination of the distant object by moving interference fringe patterns. Light reflected from the object is collected by a “light-bucket” detector, and the resulting electrical signal is digitized and subjected to a series of signal processing operations, including an all-critical averaging of the amplitude and phase of a number of narrow-band signals.
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Date Issued
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2014
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PURL
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http://purl.flvc.org/fau/fd/FA00004314
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Subject Headings
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Digital communications, Fourier analysis, Fourier integral operators, Interconnects (Integrated circuit technology), Radio -- Transmitter receivers -- Design and construction, Spread spectrum communications, Wireless sensor networks
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Format
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Document (PDF)
