‘Forensic PW’: a revolution in crime scenes reconstruction.

A team of Usal develops a software that allows to recreate in 3D what happened in any type of accident. The project has received the Research Award Spanish Police Foundation.

Digital recreation of the crime scene

Forensic PWThe use of new technologies to automate and upgrade many professions is a constant in recent years, even more since the advent of the smartphone and tablets. With the aim of facilitating the tasks to be performed many projects and initiatives arise, as is the case for ‘Forensic PW’. This software designed by a group of researchers from the University of Salamanca try simplify and cheapen the reconstruction of the scene of an incident, accident or crime simply by using photographs. “From several images of the place we can replicate what happened in three dimensions”, says Diego González Aguilera, professor who led the project. Unlike computer systems used so far-computational techniques or laser formats-, the revolutionary design “is automatic, objective and flexible.” In addition, the project combines the quality of numerical methods of photogrammetry to the speed of the algorithms from computer vision. The revolutionary initiative has been honored this week with the Spanish Police Foundation Award for Research, endowed with 20,000 euros. “We are very pleased with this distinction because it helps us to continue working to improve the software,” he says.

This system “totally low cost” lets you use photos from any camera, including mobile phones, facilitating its use. Thus, the ‘Forensic PW’ collects images from multiple views and then ‘position the point from which the photographs were taken “and provides dimensional analysis of the place.” We’re getting for each pixel in the image a three-dimensional point to settle’ says González Aguilera. This system is intended as a complementary tool when debugging responsibilities after an accident, or for know the manner in which a crime was committed. The professor recognizes that the product has been “tested” by the Scientific Police, and the idea is that researchers ‘use it’. But they claim that “everything is really alive” and they expect to increase their performance with the prize received. After two years of work, the next step is to ‘make the leap’ to new mobile devices and to enable images “to upload to the cloud” to be shared and downloaded faster. A new way to solve the mysteries that escape the eyes of the police investigators.

Forensic PW

The TIDOP group works on an augmented reality system to maintain military air fleet.

A delegation of the study of Salamanca, part of the University of Salamanca, visited the prestigious Brazilian institution to lay the foundation of several common projects.

The TIDOP groupThe research group on Information Technologies for 3D Object Digitization (TIDOP), University of Salamanca, leaded by Professor Diego González Aguilera, participates in a project of augmented reality that would improve and save maintenance costs of military aircraft fleet. The SICEMAM project, which are working together ITP (Turbo Propellers Industry) and TIDOP research group at the University of Salamanca, advised by the Logistics Support Command of the Air Force, was already able to obtain three-dimensional models two specific maintenance tasks (brakes package and landing gate) of an F-18 from the data collection with different capture systems. The objective of this project is the design and development of an intelligent system to assist in the decision making and support of military aircraft. His modeling, assembly and incorporation into a system of virtual and augmented reality provides an ideal training environment to disassemble these studied cases for maintenance workers.

Started in 2013, the project SICEMAM offers not only a way to facilitate the maintenance of aircraft through the use of augmented reality, but also, through data acquisition by different recording equipment, which would include photogrametry or computer vision, it could save costs. After successful tests developed in “Albacete Air Arsenal” with two case studies of an F-18, along this year and 2015 efforts will focus on developing their own interface and immersive augmented reality system. This would allow recognition of real component, assistance and real-time tutoring and motion detection by the system.

After the final stage of development and the results report, this new system could be market-driven, with very useful not only for the maintenance and repair of military aircraft, but also civilian applications and even in the automotive field.
The project has a budget of 2.5 million and is funded by the Ministry of Science and Innovation and the European Union through the European Regional Development Fund (ERDF).

TIDOP research group

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.

The TIDOP group

Reconstruct the crime scene in three dimensions.

• The University of Salamanca creates a ‘software’ to transfer to 3D the pictures taken with current cameras.
• It has been awarded for his research by the Police.

TIDOP Research Group, led by Professor of the University of Salamanca Diego González Aguilera, created the software Fibres- Forensic Image-based reconstruction system- which allows transfer to 3D format photographs taken with conventional cameras. The system allows the reconstruction of real scenes from the union of different photographs following a protocol which involves a processing that makes a server at a time depending on the number of images and their resolution. Four or five can be processed in minutes.

Useful for law enforcement

Reconstruct the crime sceneThe group of the University of Salamanca has been working on technologies applied to the reconstruction of real scenes over ten years, which is especially useful in fields such as engineering and architecture. Now, they try to market their program, something that will certainly be helped by the fact that he received the Research Award of the National Police, a 20,000 euros award that will serve to keep their jobs. The agents evaluated its usefulness for forensic scenarios reconstruction, which at present is done with complex laser cameras that have a high price and, therefore, can not be used in all cases.

3D map of cities

Another line of work of TIDOP is the Ensmart national project for the development of three-dimensional energy mapping of cities, an initiative that has been achieved at the moment, with three specially equipped vehicles for the data collection of the buildings thermal envelope, one of which runs through the city streets while the other two take pictures from the air.

Another line of work of TIDOP is the Ensmart national project for the development of three-dimensional energy mapping of cities, an initiative that has been achieved at the moment, with three specially equipped vehicles for the data collection of the buildings thermal envelope, one of which runs through the city streets while the other two take pictures from the air.

Reconstruct the crime scene

A project of the University of Salamanca for three-dimensional reconstruction of objects with scale rise in Australia with the award ‘Silver ISPRS CATCON Award’.

TIDOP research group at the Polytechnic School of Avila receives an award from the most prestigious international organization in its field.

A project of the University of Salamanca 3DThe Group of Information Technology for Heritage Documentation (TIDOP) at the University of Salamanca has won the ‘Silver ISPRS CATCON Award’ International Award in the sixth annual CATCON Software Competition, held in Melbourne (Australia), with an application for three-dimensional reconstruction of objects to scale.
This award is a new international recognition TIDOP group hand of the International Society for Photogrammetry and Remote Sensing (ISPRS, its acronym in English), the most prestigious and recognized in the field of Geomatics institution, Photogrammetry and Remote Sensing.
The presented tool, PW-Photogrammetry Workbench allows 3D reconstruction of any object, automatically and scaled by using multiple images. One of the most salient features of the tool is its simplicity and flexibility of operation, allowing other experts and disciplines can benefit from this tool.
This project has been led by Diego González-Aguilera, Department of Land and Cartography of the Polytechnic School of Avila, who stands on the project as the most salient features that “can work with any type of image (visible from range, infrared or thermal) that has been captured from any platform (manned and unmanned UAV) and even with any kind of camera (calibrated and non-calibrated)”. All this translates into the ability to easily create three-dimensional scale models, which is a major advancement in the fields of engineering and architecture as well as in other areas.
The contest, held in Melbourne during the last week of August, cites representatives from various countries such as Korea, Italy, China, Japan, France, Brazil, Australia, India, Germany and Spain. The process consisted of two parts: the first test presentation tool five minutes and a second two-hour test consisting of the tool in front of a committee of experts from the ISPRS above, as well as those attending the competition.

The TIDOP group

The Group Information Technology for Documentation of Heritage Polytechnic from School of Avila has open several research covering topics such as documentation and modeling of monuments, topographic and photogrammetric, dimensional analysis from a single image, 3D laser uprisings, photogrammetry low cost for the preservation of heritage and information systems applied to Heritage.
His work has allowed since the three-dimensional reconstruction of prehistoric caves and monuments, as the walls of Avila, to applications for interactive navigation electrical substations, through software to recreate crime scenes with great applications in forensic engineering.

A project of the University of Salamanca 3D

Página 10 de 12« Primera...5...89101112
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.




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.

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.




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.


Ventana modal ingles
Ventana modal español
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


  • Tree parameter extraction



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.