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TIDOP Research Group of the University of Salamanca and Mobility Innovation Center received an International award competition within the Microsoft-AppCampus.

The application PhoMod 3D allows the 3D modeling from photos taken with mobile devices.

TIDOP Research GroupThe team leaded by Professor Diego González-Aguilera (TIDOP-USAL) and composed by José Luis Marín (CIM-ADE), Pablo Rodríguez-Gonzálvez (TIDOP-USAL), David Hernández-López (TIDOP-UCLM) and Diego Guerrero (TIDOP-USAL), which has received technical support from the Centre for Innovation in Mobility, has been awarded in the international Competition of Microsoft AppCampus with the App project: 3D PhoMod “Point, shoot and enjoy your world in 3D”.

The competition, organized by the Microsoft company, has been held in Finland where the company of mobile phones Nokia have his headquarters, recently acquired by Microsoft. The aim of the competition is to present a project to develop an application for the Windows Phone operating system applicable to a generic field (entertainment, educational, etc.) or to a specific (photography, business, art, etc.).

The competition process is based on competitions by country, whose finalists are sent to the international stage. In the case of Spain, this event was held in Madrid in December 2013, when they were selected 15 applications from different parts of Spain including PhoMod3d, of which is the only awarded is the developed one from Castilla y León.

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Application description

The photographic dream of modeling the world in 3D at scale only using photographs comes true. Phomod3d has been conceived as the tool that will make the sharing of the world in 3D a mainstream activity for users on the Windows Phone platform. PhoMod3D App empowers users to share and enjoy their 3d models friendly.

To do this, PhoMod3d combines automation to change from 2D to 3D with a single click. It encloses flexibility (coping with any type of images and cameras used by non-expert users), automation (passing from 2D to 3D with one click) and scalability (benefiting from the power of Windows Azure).

Research unit TIDOP-USAL

The research unit TIDOP (Information Technology for 3D scanning of complex objects) leaded by Diego González Aguilera, belongs to the Department of Land and Cartography of the University of Salamanca.
It is composed of multidisciplinary staff with diverse backgrounds: geomatic and surveying engineers, geodesy and cartography engineers, civil engineers, industrial engineers, computer ingeniers and architects dedicated to developing computer systems in engineering and architectural applications.

Microsoft mobility innovation center.

The Microsoft mobility innovation center works on the development of an innovative ecosystem with the universities of Salamanca and Valladolid, companies specializing in Microsoft technology industry, entrepreneurs and the Innovation, Funding and Internationalization Agency. The Centre has had a budget of 20,000 euros in the past year.

The working lines of the center are the promotion of research and technology transfer, the specialized training of university students and company developers and the spread of the benefits of new technologies in SMEs.

Applications supported by the center have received two international awards in international competition App Campus and they are being developing two major projects for innovation. It is also immersed in collaboration with companies of information technology in four projects.

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Análisis termográfico de edificios

 

El uso de la termografía infrarroja comMapaEnergeticoo técnica sobradamente provada para la inspección de edificios y localización de patologías como fugas de aire, humedades, etc. Nos permite realizar un examen visual “in-situ” de calidad de los objetos de estudio gracias a la posibilidad de visualizar en tiempo real los resultados pudiendo detectar sin dificultad los desperfectos o elementos característicos de estos. Estas técnicas de medición cualitativa nos proporcionan la posibilidad de realizar inspecciones rápidas y eficaces sin contacto directo con el objeto y de forma no destructiva, lo que disminuye tanto el riesgo de incidentes para los operarios como los daños producidos en los propios objetos de estudio ocasionados por otras técnicas intrusivas. Además, también se ha demostrado la utilidad de la termografía infrarroja como técnica puramente de medida a través de su utilización para el cálculo de propiedades termofísicas de materiales tales como difusividad y transmitancia térmica.

En el caso de termografía cualitativa, las publicaciones existentes tratan de estudios realizados in-situ, principalmente en edificios históricos o elementos del patrimonio cultural, mientras que los estudios cualitativos se realizan, en la mayor parte de los casos, en laboratorios sobre muestras de tamaño limitado. En aquellos casos en los que se han realizado estudios termográficos cuantitativos sobre edificios in-situ, los valores de temperatura son empleados con el objetivo de obtener propiedades termofísicas (conductancia térmica) reales del cerramiento, sin embargo su distribución espacial no es considerada.

Conjugar ambas aplicaciones permitirá la automatización del cálculo de pérdidas de calor a partir de las temperaturas medidas con una cámara termográfica. De este modo, no solo se usa la termografía para representar el estado de la pared, sino que también se usan los valores de temperatura contenidos en la termografía para la extracción de parámetros métricos del edificio en estudio, por lo que la hibridación de la información termográfica con el material cartográfico de precisión permitiría extraer la geometría real del objeto de estudio con textura termográfica, pudiendo así realizar mediciones precisas de los elementos de interés directamente sobre el resultado obtenido.

 

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Estudios como el publicado por EuroACE en 2010 colocan la mejora de la eficiencia energética en edificación en cabeza de las acciones necesarias para la reducción de emisiones de gases del efecto invernadero y gasto energético, así como para servir de empuje a la generación de empleo. Especial es el caso del parque de edificios ya construidos, la mayoría procedente de los años 1940-80, con normativa inexistente y recursos escasos. En ellos las obras de rehabilitación energética pueden suponer un ahorro de hasta el 75% en consumo de energía. En España existen 13 millones de viviendas susceptibles de intervención, cuya rehabilitación energética supondría una reducción de las emisiones del sector del 34% con respecto al año 2001.

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Building thermographic analysis

 

 

The use of infraMapaEnergeticored thermography as a widely tested technique for building inspection and location of pathologies such as air leakage and moisture allows the performance of  quality “in-situ” visual examination of the objects under study due to the possibility of obtaining real-time results, being able to detect without difficulty damages or material characteristics. This qualitative measurement technique provides the capability of doing quick, effective and non-destructive inspection without direct contact with the object under study, decreasing the risk of incidents to operators and the damage of the objects comparing with other intrusive techniques. Furthermore, the utility of infrared thermography as a measurement technique has been proved by its use for the determination of the thermophysical properties of materials such as diffusivity and thermal transmittance.

In the qualitative approach, some authors have performed in-situ studies, mainly in historical buildings or cultural heritage elements, whereas quantitative studies are performed mainly in laboratories with limited size samples. In those cases where quantitative thermography studies were performed in-situ, temperature values were employed in order to obtain the real thermophysical properties (thermal conductance) of the building envelope, but their spatial distribution is not considered.

Combine both applications will enable the automation of the heat loss computation from the measured temperatures with a thermographic camera. Thus, the thermography is not only used to represent the state of the wall, but also temperature values represented on the thermography for extracting the metric parameters of the study object so the hybridization of the thermographic information with precise cartographic material would  allow to extract the actual geometry of the object of study with thermal texture, being able to make accurate measurements of the elements of interest directly on the obtained results.

 

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Studies such as the one published by EuroACE in 2010, places improved energy efficiency in building construction at the top of the list of actions that need to be taken to reduce greenhouse gases and energy costs, in addition to acting as a stimulus to generate employment. In particular is the case of existing buildings stock, most of which dates back to the period 1940-80, constructed using non-existent standards and scarce resources. Here, energy refurbishment works could represent a saving of up to 75% in energy consumption. In Spain there are 13 million homes that could be the subject of intervention, where energy refurbishment could result in a reduction in sector emissions of 34% compared to 2001.

 

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Ventana modal ingles
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Ventana modal español
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Mobile Laser System (MLS) applied to urban tree inventory

In urbanized Western Europe trees are considered an important component of the built-up environment. This also means that there is an increasing demand for tree inventories. Laser mobile mapping systems provide an efficient and accurate way to sample the 3D road surrounding including notable roadside trees. In this research line, a processing chain aiming at the extraction of tree locations and tree sizes from laser mobile mapping data is reached.

  • Vegetation extraction

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  • Tree parameter extraction

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Such steps, in combination with code optimization are expected to be sufficient to reach the final goal of automatized estimation of features sampled by mobile mapping at a rate that matches the acquisition speed and at a quality that matches the result of a human operator.

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