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Image Based View Synthesis, Jiangjian Xiao Jan 2004

Image Based View Synthesis, Jiangjian Xiao

Electronic Theses and Dissertations

This dissertation deals with the image-based approach to synthesize a virtual scene using sparse images or a video sequence without the use of 3D models. In our scenario, a real dynamic or static scene is captured by a set of un-calibrated images from different viewpoints. After automatically recovering the geometric transformations between these images, a series of photo-realistic virtual views can be rendered and a virtual environment covered by these several static cameras can be synthesized. This image-based approach has applications in object recognition, object transfer, video synthesis and video compression. In this dissertation, I have contributed to several sub-problems …

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Hybrid And Hierarchical Image Registration Techniques, Dongjiang Xu Jan 2004

Hybrid And Hierarchical Image Registration Techniques, Dongjiang Xu

Electronic Theses and Dissertations

A large number of image registration techniques have been developed for various types of sensors and applications, with the aim to improve the accuracy, computational complexity, generality, and robustness. They can be broadly classified into two categories: intensity-based and feature-based methods. The primary drawback of the intensity-based approaches is that it may fail unless the two images are misaligned by a moderate difference in scale, rotation, and translation. In addition, intensity-based methods lack the robustness in the presence of non-spatial distortions due to different imaging conditions between images. In this dissertation, the image registration is formulated as a two-stage hybrid …

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Predicting Licensing Examination Performance With Cognitive Style And Reactive Behavior Pattern Assessments, Daniel Paul Combs Jan 2004

Predicting Licensing Examination Performance With Cognitive Style And Reactive Behavior Pattern Assessments, Daniel Paul Combs

Electronic Theses and Dissertations

Candidates for Florida real estate sales associate licensure responded to a two-part questionnaire based on William A. Long’s Reactive Behavior Patterns Theory and Robert J. Sternberg’s Triarchic Theory of Intelligence. Examination scores were converted to a dichotomous pass/fail variable based on the Florida Real Estate Commission-mandated cut-off score of 75 correctly answered questions out of 100. The candidates’ responses to the questionnaire comprising the Long-Dziuban Inventory and the Cognitive Strengths Task List based on Sternberg’s theory, were crosstabulated with pass/fail to identify differential passing proportions, if any, based on reactive behavior pattern and/or cognitive strength. An ANOVA procedure was used …

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Polarimetric Characterization Of Random Electromagnetic Beams And Applications, Mircea Mujat Jan 2004

Polarimetric Characterization Of Random Electromagnetic Beams And Applications, Mircea Mujat

Electronic Theses and Dissertations

Polarimetry is one of the principal means of investigating the interaction of light with matter. Theoretical models and experimental techniques are presented in this dissertation for polarimetric characterization of random electromagnetic beams and of signatures of random media in different scattering regimes and configurations. The degree of polarization rather than the full description of the state of polarization is of interest in multiple scattering and free space propagation where the statistical nature and not the deterministic component of light bears the relevant information. A new interferometric technique for determining the degree of polarization by measuring the intensity fluctuations in a …

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Quadratic Spatial Soliton Interactions, Ladislav Jankovic Jan 2004

Quadratic Spatial Soliton Interactions, Ladislav Jankovic

Electronic Theses and Dissertations

Quadratic spatial soliton interactions were investigated in this Dissertation. The first part deals with characterizing the principal features of multi-soliton generation and soliton self-reflection. The second deals with two beam processes leading to soliton interactions and collisions. These subjects were investigated both theoretically and experimentally. The experiments were performed by using potassium niobate (KNBO3) and periodically poled potassium titanyl phosphate (KTP) crystals. These particular crystals were desirable for these experiments because of their large nonlinear coefficients and, more importantly, because the experiments could be performed under non-critical-phase-matching (NCPM) conditions. The single soliton generation measurements, performed on KNBO3 by launching the …

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Stability And Recovery Of Rna In Biological Stains, Mindy Eileen Setzer Jan 2004

Stability And Recovery Of Rna In Biological Stains, Mindy Eileen Setzer

Electronic Theses and Dissertations

In theory, RNA expression patterns, including the presence and relative abundance of particular RNA species, provide cell and tissue specific information that could be of use to forensic scientists. An mRNA based approach could allow the facile identification of the tissue components present in a body fluid stain and conceivably could supplant the battery of serological and biochemical tests currently employed in the forensic serology laboratory. Some of the potential advantages include greater test specificity, and the ability to perform simultaneous analysis using a common assay format for the presence of all body fluids of forensic interest. In this report, …

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Stable Spatial Solitons In Semiconductor Optical Amplifiers, Erdem Ultanir Jan 2004

Stable Spatial Solitons In Semiconductor Optical Amplifiers, Erdem Ultanir

Electronic Theses and Dissertations

A spatial soliton is a shape invariant self guided beam of light or a self induced waveguide. Spatial solitons appear as a result of the balance of diffraction and nonlinear focusing in a system. They have been observed in many different conservative media in the last couple of years. Solitons are ubiquitous, because of the probability of using their interactions in optical data processing, communications etc. Up to now due to the power required to generate the solitons, and the response times of the soliton supporting media, these special waves of nature could not penetrate the applications arena. Semiconductors, with …

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A Study Of The Influence Vocational Education Has On Students' Ultimate Academic Success, Margaret Mary Gunderson Jan 2004

A Study Of The Influence Vocational Education Has On Students' Ultimate Academic Success, Margaret Mary Gunderson

Electronic Theses and Dissertations

The purpose of this study is to determine if vocational/business education has an influence on a student's ultimate academic achievement--high school graduation. This study consists of comparing students with no vocational/business education experiences to students with some degree of vocational/business education. The cohort group started high school during the 1999-2000 school year, had earned a GPA of 2.5 or lower at the end of the freshman year (May 2000) and finished high school prior to the start of the 2003-2004 school year. There were 322 students identified in the initial cohort group. In completing this study, the following procedures were …

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Dispersion-Managed Breathing-Mode Semiconductor Mode-Locked Ring Laser, Bojan Resan Jan 2004

Dispersion-Managed Breathing-Mode Semiconductor Mode-Locked Ring Laser, Bojan Resan

Electronic Theses and Dissertations

A novel dispersion-managed breathing-mode semiconductor mode-locked ring laser is developed. The "breathing-mode" designation derives from the fact that intracavity pulses are alternately stretched and compressed as they circulate around the ring resonator. The pulses are stretched before entering the semiconductor gain medium to minimize the detrimental strong integrating self-phase modulation and to enable efficient pulse amplification. Subsequently compressed pulses facilitate bleaching the semiconductor saturable absorber. The intracavity pulse compression ratio is higher than 50. Down chirping when compared to up chirping allows broader mode-locked spectra and shorter pulse generation owing to temporal and spectral semiconductor gain dynamics. Pulses as short …

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The Lack Of Diversity On The Bench In Florida's State Courts, Verlinda Wells Jan 2004

The Lack Of Diversity On The Bench In Florida's State Courts, Verlinda Wells

Electronic Theses and Dissertations

Diversity in the judiciary is essential to ensure impartiality, public confidence, and the perception that all members of society are represented on the bench. Minorities and women are significantly underrepresented as judges in Florida in proportion to their numbers in the general population. Because we live in an increasingly global world, diversity is best described when people of different races, colors, ethnicity and genders work to develop a mutual respect for each other. It was important to use diversity in this research because it required recognition, understanding, and acceptance of the special contribution that each member of a group can …

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The Effects Of Stimulus Motion On Contrast Sensitivity: Dynamic Sensi, Merrill Zavod Jan 2004

The Effects Of Stimulus Motion On Contrast Sensitivity: Dynamic Sensi, Merrill Zavod

Electronic Theses and Dissertations

Static Visual Acuity (SVA) has been called into question for some time as a measure of overall visual system function and as a predictor of performance on real-life tasks requiring vision (i.e., operating an automobile). Specifically, it has been pointed out that the targets employed in most SVA testing (high contrast, stationary letters) are an insufficient analog to actual targets encountered in everyday activities, which are often in motion and/or of less-than-perfect contrast. In addition, the size-threshold methodology typically used to measure SVA is incongruent with current theories of a multi-channel visual system. Dynamic Visual Acuity (DVA) and Contrast Sensitivity …

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Towards Direct Writing Of 3-D Photonic Circuits Using Ultrafast Lasers, Arnaud Zoubir Jan 2004

Towards Direct Writing Of 3-D Photonic Circuits Using Ultrafast Lasers, Arnaud Zoubir

Electronic Theses and Dissertations

The advent of ultrafast lasers has enabled micromachining schemes that cannot be achieved by other current techniques. Laser direct writing has emerged as one of the possible routes for fabrication of optical waveguides in transparent materials. In this thesis, the advantages and limitations of this technique are explored. Two extended-cavity ultrafast lasers were built and characterized as the laser sources for this study, with improved performance over existing systems. Waveguides are fabricated in oxide glass, chalcogenide glass, and polymers, these being the three major classes of materials for the telecommunication industry. Standard waveguide metrology is performed on the fabricated waveguides, …

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Transforming Learning Into A Constructive Cognitive And Metacognitive, Haydee Cuevas Jan 2004

Transforming Learning Into A Constructive Cognitive And Metacognitive, Haydee Cuevas

Electronic Theses and Dissertations

This study explored the effectiveness of embedding a guided, learner-generated instructional strategy (query method), designed to support learners' cognitive and metacognitive processes, within the context of a computer-based complex task training environment (i.e., principles of flight in the aviation domain). The queries were presented as "stop and think" exercises in an open-ended question format that asked learners to generate either simple (low-level elaboration) or complex (high-level elaboration) sentences from a list of key training concepts. Results consistently highlighted the benefit of presenting participants with low-level elaboration queries, as compared to the no-query or high-level elaboration queries. In terms of post-training …

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University Of Central Florida Libraries, Annual Report 2003-2004, Ucf Libraries Jan 2004

University Of Central Florida Libraries, Annual Report 2003-2004, Ucf Libraries

Libraries' Documents

No abstract provided.

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University Of Central Florida Commencement, December 15 & 16, 2003, University Of Central Florida Dec 2003

University Of Central Florida Commencement, December 15 & 16, 2003, University Of Central Florida

Commencement Programs

No abstract provided.

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Central Florida Future, Vol. 36 No. 27, November 24, 2003 Nov 2003

Central Florida Future, Vol. 36 No. 27, November 24, 2003

Central Florida Future

March in Miami tense peaceful: Students rose before dawn left by dusk; Orsini: Football players need help: Just one-third of team members graduate; UCF tight on network hacking; Campus radio ousts lone student DJ; Anger over campus woes prompts rally.

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Central Florida Future, Vol. 36 No. 25, November 17, 2003 Nov 2003

Central Florida Future, Vol. 36 No. 25, November 17, 2003

Central Florida Future

Hitt explains timing of Kruczek's firing; Patriot Act protest draws throngs honks; Tradition takes student to fight in Iraq; GLBSU hosts gay wedding; Lifesaving process seeks student marrow donors.

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The Benefits Of Using Window Shades, Florida Solar Energy Center, Ross Mccluney Nov 2003

The Benefits Of Using Window Shades, Florida Solar Energy Center, Ross Mccluney

FSEC Energy Research Center®

Windows play an important aesthetic role in our daily lives. At the same time, windows typically add significantly to the cost of heating and cooling buildings. After reviewing the physical principles by which windows add heat to buildings and the standard techniques employed to reduce unwanted heating, this paper focuses on one type of device which is readily available, inexpensive to purchase and operate, and capable of being adjusted to changing conditions on even an hourly basis. The device is the common window shade. This paper develops a simple, but realistic, model for computing the advantage of using reflective interior …

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Central Florida Future, Vol. 36 No. 15, October 13, 2003 Oct 2003

Central Florida Future, Vol. 36 No. 15, October 13, 2003

Central Florida Future

Faculty Senate steps towards protecting gays; UCF will return to Islands of Adventure; 'The Laramie Project' haunted by protests; Diversity week celebration marks 11th year.

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Central Florida Future, Vol. 36 No. 14, October 9, 2003 Oct 2003

Central Florida Future, Vol. 36 No. 14, October 9, 2003

Central Florida Future

Vandals rip flags from classrooms; Traffic accidents on rise near UCF; A vote for Wonder Woman won't work; It's back to class for adults who want to teach.

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Sandspur, Vol 110, No 06, October 03, 2003, Rollins College Oct 2003

Sandspur, Vol 110, No 06, October 03, 2003, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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Central Florida Future, Vol. 36 No. 04, September 29, 2003 Sep 2003

Central Florida Future, Vol. 36 No. 04, September 29, 2003

Central Florida Future

Smear campaign escalates as SGA elections begin; Frustration mounts as war drags; Dunlap reflects on coronation plans for year on the road.

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Sandspur, Vol 110, No 04, September 19, 2003, Rollins College Sep 2003

Sandspur, Vol 110, No 04, September 19, 2003, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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Study Guide For Photovoltaic System Installers And Sample Examination Questions, Florida Solar Energy Center, James Dunlop Sep 2003

Study Guide For Photovoltaic System Installers And Sample Examination Questions, Florida Solar Energy Center, James Dunlop

FSEC Energy Research Center®

This Study Guide presents some of the basic cognitive material that individuals who install and maintain photovoltaic (PV) power systems should know and understand. This information is intended primarily as a Study Guide to help individuals better prepare for the NABCEP PV installer examination but does not provide all of the materials needed for completing the certification examination. Knowledge of the information presented, knowledge of pertinent sections of the National Electrical Code and appropriate experience and qualifications, are generally required of those applying for and completing the NABCEP certification process. Applicants and certificants are also reminded that local installation codes …

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Sandspur, Vol 110, No 01, August 20, 2003, Rollins College Aug 2003

Sandspur, Vol 110, No 01, August 20, 2003, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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University Of Central Florida Commencement, August 2, 2003, University Of Central Florida Aug 2003

University Of Central Florida Commencement, August 2, 2003, University Of Central Florida

Commencement Programs

No abstract provided.

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Central Florida Future, Vol. 35 No. 71, July 9, 2003 Jul 2003

Central Florida Future, Vol. 35 No. 71, July 9, 2003

Central Florida Future

Pumped up performance: Grade inflation could be the culprit fir rising GPAs; New provost Hickey sweats comfortably through his first week; Bush gets an 'F' grade on environmental report card.

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Interferometer With Optical Fiber Interconnected Dual Arm Sampler., Aristide Dogariu, Gabriel Popescu Jul 2003

Interferometer With Optical Fiber Interconnected Dual Arm Sampler., Aristide Dogariu, Gabriel Popescu

UCF Patents

An interferometric system includes first, second and third optical fibers with first and second couplers. The first coupler is configured to receive radiation through the first fiber, provide a first radiation portion through the second fiber and provide a second radiation portion through the third fiber to the second coupler. The system also includes fourth and fifth optical fibers each configured to receive radiation from the second coupler and transmit radiation for receipt by the other.

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The Learning Marketspace, July 2003, Bob Heterick, Carol Twigg Jul 2003

The Learning Marketspace, July 2003, Bob Heterick, Carol Twigg

The Learning MarketSpace (4/03 - 4/14)

No abstract provided.

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Method For Characterizing Particles In A Liquid Medium Using Interferometry., Aristide Dogariu, Gabriel Popescu Jul 2003

Method For Characterizing Particles In A Liquid Medium Using Interferometry., Aristide Dogariu, Gabriel Popescu

UCF Patents

In a method for characterizing particles in a colloidal suspension, during a period in which the particles undergo sedimentation, changes are measured in the intensity among interference patterns generated by combining first and second partially coherent radiation portions. Each radiation portion is generated from the same source. The first portion includes a component transmitted through a fraction of the suspension, and the second portion is transmitted through a reference path.

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