Implementation of a robust coded structured light technique for dynamic 3D measurements

This paper presents the implementation details of a coded structured light system for rapid shape acquisition of unknown surfaces. Such techniques are based on the projection of patterns onto a measuring surface and grabbing images of every projection with a camera. Analyzing the pattern deformations that appear in the images, 3D information of the surface can be calculated. The implemented technique projects a unique pattern so that it can be used to measure moving surfaces. The structure of the pattern is a grid where the color of the slits are selected using a De Bruijn sequence. Moreover, since both axis of the pattern are coded, the cross points of the grid have two codewords (which permits to reconstruct them very precisely), while pixels belonging to horizontal and vertical slits have also a codeword. Different sets of colors are used for horizontal and vertical slits, so the resulting pattern is invariant to rotation. Therefore, the alignment constraint between camera and projector considered by a lot of authors is not necessary

Behaviours implemented using a vision system based on coded light projection

In a search for new sensor systems and new methods for underwater vehicle positioning based on visual observation, this paper presents a computer vision system based on coded light projection. 3D information is taken from an underwater scene. This information is used to test obstacle avoidance behaviour. In addition, the main ideas for achieving stabilisation of the vehicle in front of an object are presented

Visual SLAM for 3D large-scale seabed acquisition employing underwater vehicles

This paper presents a novel technique to align partial 3D reconstructions of the seabed acquired by a stereo camera mounted on an autonomous underwater vehicle. Vehicle localization and seabed mapping is performed simultaneously by means of an Extended Kalman Filter. Passive landmarks are detected on the images and characterized considering 2D and 3D features. Landmarks are re-observed while the robot is navigating and data association becomes easier but robust. Once the survey is completed, vehicle trajectory is smoothed by a Rauch-Tung-Striebel filter obtaining an even better alignment of the 3D views and yet a large-scale acquisition of the seabed

Reusable Learning Object repository at the University of Nottingham

Over 100 RLOs in subjects relevant to health, including evidence-based practice, clinical skills, basic sciences, pharmacology, physiology, genetics and study skills.

Laboratory on Matlab

Considers function handles, matrix manipulation, 3D plots and programming

Quaderns de dibuix t??cnic en 3D. 'Cuadernos de dibujo t??cnico en 3D'

Resumen tomado parcialmente del autor

Data Manipulation.doc (9)

Notes on use of SPSS. Used in Research Skills for Biomedical Science

Object Orientated PHP

To replace Application Scripting and Contemporary Programming Principles

Introduction of Research Proposal of Samsung 3D TV

Brief introduction about the RS proposal

Using the Browse Object tool in MS Word 2010

Use the Browse Object tool to quickly navigate through a selected type of object in your file – pages, tables, sections, images, footnotes or headings of your document. For best viewing Download the video.

Using the Browse Object tool in MS Word 2011

Use the Browse Object tool to quickly navigate through a selected type of object in your file – pages, tables, sections, images, footnotes or headings of your document. For best viewing Download the video.

Quaderns de dibuix tècnic en 3D. Projecte d'innovació educativa. 'Cuadernos de dibujo técnico en 3D. Proyecto de innovación educativa'.

Resumen tomado de la publicación

Formative-1-Projecting-3D-Objects - Storyline

Formative exercise on projecting 3D objects for FEEG1001 students.

Evaluación de la vía aérea superior en pacientes con sahos mediante cefalometría 3D y multiplanar

Objetivo: determinar parámetros biométricos para evaluación y diagnóstico de pacientes con SAHOS por medio de Cefalometría Tridimensional y reconstrucción Multiplanar escanográfica. Materiales y Métodos: se realizó estudio observacional tipo cross-sectional, con 25 pacientes diagnosticados con SAHOS, a los cuales se les hizo TAC simple de cara con reconstrucción multiplanar y tridimensional, evaluando volumen de vía aérea, longitud, promedio del área en corte transversal, área retropalatal, área reglosal, espacio retrogloso lateral y anteroposterior. Resultados: se incluyeron 25 pacientes y realizaron medidas de volumen, longitud, promedio del área en corte transversal, área retropalatal, área retroglosal y espacios regloso lateral y anteroposterior, realizando análisis estadístico mediante el programa SPSS 17.0 reportando medidas de tendencia central como promedio, media, moda, rango, desviación estándar, y concordancia inter e intra observador. Conclusión: la Cefalometría tridimensional con reconstrucción multiplanar ha mostrado ser un excelente método de evaluación de vía aérea en pacientes con SAHOS, obteniendo propias clasificaciones dentro del estudio de estos pacientes. Sin embargo, ante la escasa literatura y difícil obtención de parámetros de referencia es necesario promover el estudio y la investigación de este método diagnostico en pacientes con SAHOS.

3D Analysis of the TCR/pMHCII Complex Formation in Monkeys Vaccinated with the First Peptide Inducing Sterilizing Immunity against Human Malaria

T-cell receptor gene rearrangements were studied in Aotus monkeys developing high antibody titers and sterilizing immunity against the Plasmodium falciparum malaria parasite upon vaccination with the modified synthetic peptide 24112, which was identified in the Merozoite Surface Protein 2 (MSP-2) and is known to bind to HLA-DR beta 1*0403 molecules with high capacity. Spectratyping analysis showed a preferential usage of V beta 12 and V beta 6 TCR gene families in 67% of HLA-DR beta 1*0403-like genotyped monkeys. Docking of peptide 24112 into the HLA-DR beta 1*0401-HA peptide-HA1.7TCR complex containing the VDJ rearrangements identified in fully protected monkeys showed a different structural signature compared to nonprotected monkeys. These striking results show the exquisite specificity of the TCR/pMHCII complex formation needed for inducing sterilizing immunity and provide important hints for a logical and rational methodology to develop multiepitopic, minimal subunit-based synthetic vaccines against infectious diseases, among them malaria.