This study presents a comparison between the use of wearable laser scanning (WLS) and terrestrial (TLS) devices for automatic tree detection with an estimation two dendrometric variables: diameter at breast height (DBH) total (TH). Operative processes data collection forest inventory are described in detail. The approach used is based on clustering points belonging to each individual tree, isolation trunks, iterative fitting circles DBH calculation computation TH tree. TLS WLS point clouds...

Combinations of unmanned aerial platforms and multispectral sensors are considered low-cost tools for detailed spatial temporal studies addressing spectral signatures, opening a broad range applications in remote sensing. Thus, key step this process is knowledge multi-spectral sensor calibration parameters order to identify the physical variables collected by sensor. This paper discusses radiometric means vicarious method applied high-spatial resolution flight using artificial natural covers...

Abstract. Temporal analyses and multi-temporal 3D reconstruction are fundamental for the preservation maintenance of all forms Cultural Heritage (CH) basis decisions related to interventions promotion. Introducing fourth dimension time into three-dimensional geometric modelling real data allows creation a representation site. In this way, scholars from various disciplines (surveyors, geologists, archaeologists, architects, philologists, etc.) provided with new set tools working methods...

Non-Melanoma skin cancer is one of the most frequent types cancer. Early detection encouraged so as to ensure best treatment, Hyperspectral imaging a promising technique for non-invasive inspection lesions, however, optimal wavelengths these purposes are yet be conclusively determined. A visible-near infrared hyperspectral camera with an ad-hoc built platform was used image acquisition in present study. Robust statistical techniques were conclude range between 573.45 and 779.88 nm...

This paper presents a radiometric study to recognize pathologies in façades of historical buildings by using two different remote sensing technologies covering part the visible and very near infrared spectrum (530–905 nm). Building materials deteriorate over years due extrinsic intrinsic agents, so assessing these affections non-invasive way is crucial help preserve them since many cases they are valuable some have been declared monuments cultural interest. For investigation, passive active...

Abstract. This paper sums up the main contribution derived from thesis entitled "Multispectral imaging for analysis of materials and pathologies in civil engineering, constructions natural spaces" awarded by CIPA-ICOMOS its connection with preservation Cultural Heritage. is framed within close-range remote sensing approaches fusion sensors operating optical domain (visible to shortwave infrared spectrum). In field heritage preservation, multispectral a suitable technique due non-destructive...

One of the main factors for determination energy yield photovoltaic (PV) systems is incoming solar irradiation, which a function (i) spatial configuration PV panels with respect to Sun (ii) each location. The aim this work determine potential in Iberian Peninsula, attending two criteria. Regarding (i), different methods estimation optimal tilt angle and how parameter influences production, are analysed. With (ii), climate zoning proposed be used as reference radiation study performed using...

One of the most common forms cancer in fair skinned populations is Non-Melanoma Skin Cancer (NMSC), which primarily consists Basal Cell Carcinoma (BCC), and cutaneous Squamous (SCC). Detecting NMSC early can significantly improve treatment outcomes reduce medical costs. Similarly, Actinic Keratosis (AK) a skin condition that, if left untreated, develop into more serious conditions, such as SCC. Hyperspectral imagery at forefront research to non-invasive techniques for study characterisation...

Proper control and planning of water resource use, especially in those catchments with large surface, climatic variability intensive irrigation activity, is essential for a sustainable management. Decision support systems based on useful tools involving main stakeholders hydrological offices the river basins play key role. The free availability Earth observation products high temporal resolution, such as European Sentinel-2B, has allowed us to combine remote sensing cadastral agronomic data....

Land surface temperature (LST) is a key parameter for land cover analysis and many fields of study, example, in agriculture, due to its relationship with the state crop evaluation natural phenomena such as volcanic eruptions geothermal areas, desertification studies, or estimation several variables environmental interest evapotranspiration. The computation LST from satellite imagery possible advances thermal infrared technology implementation artificial satellites. For Landsat 8 incorporates...

The early detection of Non-Melanoma Skin Cancer (NMSC) is essential to ensure patients receive the most effective treatment. Diagnostic screening tools for NMSC are crucial due high confusion rates with other types skin lesions, such as Actinic Keratosis. Nevertheless, current means diagnosing and rely on either visual criteria, that often conditioned by subjectivity experience, or highly invasive, slow, costly methods, histological diagnoses. From this, objectives present study test if...

Non-melanoma skin cancer, and basal cell carcinoma in particular, is one of the most common types cancer. Although this type malignancy has lower metastatic rates than other its locally destructive nature advantages timely treatment make early detection vital. The combination multispectral imaging artificial intelligence arisen as a powerful tool for classification cancer non-invasive manner. present study uses hyperspectral images to discern between healthy signatures. Upon combined use...

Abstract. This paper presents a comparative study with different remote sensing technologies to recognize pathologies in façades of historical buildings. Building materials deteriorate over the years due extrinsic and intrinsic agents, so assessing these diseases non-invasive way is crucial help preserve them. Most buildings are extremely valuable some them have been declared monuments cultural interest. In this through close range techniques, it possible material rigorous short duration...

The use of LiDAR (Light Detection and Ranging) data for the definition 3D geometry roofs has been widely exploited in recent years its posterior application field solar energy. Point density is an essential characteristic to be taken into account accurate estimation roof geometry: area, orientation slope. This paper presents a comparative study between different point densities: 0.5, 1, 2 14 points/m2 measurement area residential industrial buildings. used are freely available by Spanish...

This paper presents a promising handheld and non-invasive approach based on stereo-photogrammetry for crime scene documentation, reconstruction, analysis. Specifically, the performance of stereo image device has been assessed to conduct three-dimensional analysis scenes. To demonstrate potential this in field, was simulated virtually reconstructed using terrestrial laser scanner (TLS). After processing required data, metric from both data sources (based distances, areas, angles extracted)...

Climate challenge requires developing approaches capable of improving the thermal capacities building materials. These are objectives new additive manufacturing industry in sector to mitigation urban heat island. The objective this work was verify that properties additives transferred those final product, mortar. For purpose, several with different conductivities, ranging from 0,038 130 W/m·K, were selected include them matrix a standard mortar same volume percentage. Once mixtures prepared,...

This study presents a comprehensive exploration centred on the morphology and surface structure of bladeless wind turbines (BWTs) aimed at optimizing their energy harvesting capability. Unlike conventional technology where vortex-induced vibration (VIV) is seen as problematic due to aeroelastic resonance, this effect becomes advantageous in BWT harvesters, devoid frictional contact or gears. The primary objective develop an optimal design for maximizing output. Specifically, delves into...

This study investigates the application of soft magnetic composite (SMC) materials in alternator core manufacturing for bladeless wind turbines operating under principle vortex-induced vibration (VIV), employing additive (AM) technologies. Through a comparative analysis prototypes featuring air, SMC, and iron cores, investigation aims to evaluate performance SMC as an alternative most commonly used material (iron) VIV BWT, by assessing damping, resonance frequency, hysteresis, energy...