Search results for "vision."
showing 10 items of 4900 documents
PERFORMANCE EVALUATIONS OF 3D WEB-SERVICES AND OPEN-SOURCE SOFTWARE FOR DIGITAL MODELING OF ARCHAEOLOGICAL FINDS
2016
The Structure From Motion (SFM) algorithms derived from Computer Vision community make image-based techniques a competitive and user friendly approach to obtain 3D information of real objects. These algorithms have been implemented in many 3D web-services and open-source software to develop free instruments for the reconstruction of very detailed 3D digital models. Their use is becoming very common above all in archaeological studies but their potentiality for metric application has not been tested at all. The aim of the work is to investigate the quality and the accuracy of 3D models obtained through 3D web-services and SFM open-source software. Different tests have been performed using so…
Vision metrology and Structure from Motion for archaeological heritage 3D reconstruction: A Case Study of various Roman mosaics
2017
<p class="Abstract">Vision metrology and computer vision can be successfully used for archaeological heritage 3D reconstruction in very high precision 3D measurement projects. Of those archaeological objects requiring very accurate measurements (&lt;1 mm), ancient mosaics comprise some of the most important. The aim of this paper is to assess the photogrammetric/computer vision approach in a vision metrology context as part of a 3D mosaics survey. In order to evaluate the optimal photogrammetric/computer vision workflow in this work, three different surveys were performed on three mosaics of different sizes and locations. Two of these are stored at the <em>Antonino Salinas&l…
Localization of 2D Cameras in a Known Environment Using Direct 2D-3D Registration
2014
International audience; In this paper we propose a robust and direct 2D-to- 3D registration method for localizing 2D cameras in a known 3D environment. Although the 3D environment is known, localizing the cameras remains a challenging problem that is particularly undermined by the unknown 2D-3D correspondences, outliers, scale ambiguities and occlusions. Once the cameras are localized, the Structure-from-Motion reconstruction obtained from image correspondences is refined by means of a constrained nonlinear optimization that benefits from the knowledge of the scene. We also propose a common optimization framework for both localization and refinement steps in which projection errors in one v…
The contribution of tear osmolarity measurement to ocular surface assessment in contact lens wearers
2012
Purpose: To determine whether tear osmolarity using the TearLabTM Osmolarity System contributes to the assessment of the ocular surface in contact lens (CL) wearers.Methods: Data were collected from 44 CL wearers (28 tolerant and 16 intolerant) and 34 healthy subjects. Every patient underwent a thorough ophthalmic examination and tear osmolarity test, conjunctival impression cytology and meibomian lipid sampling. Symptoms, break-up time (BUT), tear osmolarity, conjunctival expression of HLA-DR and meibomian fatty acid composition were evaluated.Results: Tear osmolarity was significantly higher in the controls compared to tolerant and intolerant CL wearers (p=0.0007). Flow cytometry results …
Designing the 5G network infrastructure: a flexible and reconfigurable architecture based on context and content information
2018
5G networks will have to offer extremely high volumes of content, compared to those of today’s. Moreover, they will have to support heterogeneous traffics, including machine-to-machine, generated by a massive volume of Internet-of-Things devices. Traffic demands will be variable in time and space. In this work, we argue that all this can be achieved in a cost-effective way if the network is flexible and reconfigurable. We present the Flex5Gware network architecture, designed to meet the above requirements. Moreover, we discuss the links between flexibility and reconfigurability, on the one side, and context awareness and content awareness, on the other; we show how two of the building…
Aspilota-group in Natural Parks of Valencia and European Dinotrema Revision
2013
El trabajo de investigación en que se basa la Tesis doctoral realizada por Francisco Javier Peris Felipo, se ha centrado en el estudio taxonómico, análisis de la diversidad y examen fenológico de los bracónidos alysinos del grupo Aspilota. Además, se ha llevado a cabo la revisión europea del género Dinotrema. Alrededor de 2.000 especies y más de 100 géneros han sido registrados en la subfamilia Alysiinae. Actualmente, esta subfamilia está separada en dos grandes y polimórficas tribus, Alysiini y Dacnusiini. Los miembros de esta subfamilia se distribuyen por todo el mundo siendo muy comunes en hábitats naturales de las regiones templadas y boreales y se caracterizan por ser endoparasitoides …
Cláusulas laborales en tratados comerciales internacionales: el caso del CETA
2017
Algunos acontecimientos recientes parecen mostrar una cierta oposición de la ciudanía de los países occidentales hacia el libre comercio. De una parte, resultó bastante controvertida la numantina oposición de la pequeña región belga de Valonia a la firma del Tratado de libre comercio entre la UE y Canadá (conocido como CETA), que a punto estuvo de hacerlo descarrilar. Por otra parte, la elección de Donald Trump como presidente de los Estados Unidos parece haber dado al traste con las escasas esperanzas de alcanzar un acuerdo similar con éste país, máxime si se tiene en cuenta que uno de los argumentos centrales de su campaña electoral fue su posición a este tipo de tratados por los, a su ju…
La protección en la jurisdicción penal internacional del derecho a la cultura : los crímenes internacionales de destrucción del patrimonio cultural |…
2019
Resumen: El presente artículo pretender dar una visión global de la protección del derecho a la cultura a través del derecho internacional penal y en concreto, a través de la tipificación de los crímenes de destrucción del patrimonio cultural. La persecución de tales delitos internacionales ha seguido la senda de otros crímenes en derecho internacional penal, englobándose en un primer momento entre los crímenes de guerra para de forma posterior superar dicha tipificación para poder ser tratado como crímenes de lesa humanidad de persecución e incluso, como indicios de una conducta genocida. En el presente contexto internacional, la denegación del derecho a la cultura como método de guerra es…
La interpretación jurídica con perspectiva de género : Un decálogo de estándares interpretativos
2021
: The Argentine legal system is part of the constitutional paradigm. In this case, the gender perspective is an essential condition to make a legal correct interpretation because its postulates influence any notion and course of legal action. On this matter, I assume a theoretical foundation of the gender theory and I recommend a decalogue of interpretative standards which receive its vision.
Liquidación de la sociedad de gananciales: el caso de la adjudicación forzosa de participaciones sociales de carácter ganancial a un solo cónyuge. Co…
2021
In a liquidation of community property, the rules for the partition of the inheritance are of suppletive application. Therefore, the sentence opts for a criterion of flexible interpretation of those rules, whose application will be subject to the objective entity of the property in question. Accordingly, when the only property to be shared between the spouses is constituted by set of shares of common nature, taking into account the special circumstances of the case, such shares could be awarded to one of the spouses with the obligation to compensate the other in money, even if it requests the sale of the shares in the public auction. To this end, the request would have to impede the possibi…