- 3D Surveying and Cultural Heritage
- Remote Sensing and LiDAR Applications
- Satellite Image Processing and Photogrammetry
- Robotics and Sensor-Based Localization
- 3D Modeling in Geospatial Applications
- Geography and Environmental Studies
- Optical measurement and interference techniques
- Infrared Target Detection Methodologies
- Advanced Image Fusion Techniques
- Remote Sensing in Agriculture
- Remote-Sensing Image Classification
- Smart Agriculture and AI
- Automated Road and Building Extraction
- Spectroscopy and Chemometric Analyses
- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Advanced Vision and Imaging
- Forest ecology and management
- Inertial Sensor and Navigation
- 3D Shape Modeling and Analysis
- Flood Risk Assessment and Management
- Cryospheric studies and observations
- Advanced Image and Video Retrieval Techniques
- Fuzzy Logic and Control Systems
- Calibration and Measurement Techniques
Universidade Federal do Paraná
2015-2024
Motion Control (United States)
2024
Terra
2014
Universidade Federal de Santa Maria
2008
University of Calgary
2005
In recent years, many agriculture-related problems have been evaluated with the integration of artificial intelligence techniques and remote sensing systems. Specifically, in fruit detection problems, several works were developed using Deep Learning (DL) methods applied images acquired different acquisition levels. However, increasing use anti-hail plastic net cover commercial orchards highlights importance terrestrial Apples are one most highly-challenging fruits to be detected images,...
Abstract The integration of photogrammetric images and lidar data is becoming a powerful procedure that can be applied in the optimisation mapping techniques. complementary nature optimises performance many procedures used to extract 3D spatial information from data. For example, imagery enables accurate extraction building borders provides points give on physical surfaces buildings. These properties demonstrate usefulness combining two types achieve more robust complete reconstruction...
Abstract Increasing resolution and lower cost of off‐the‐shelf digital cameras are giving rise to their use in traditional new photogrammetric activities such as aerial mapping, transportation surveillance well archaeological, industrial medical applications. For most, if not all, applications, the interior orientation parameters (IOP) camera need be determined analysed. The derivation these is usually achieved through a bundle adjustment with self‐calibration procedure. Prior using IOP...
Registering, documenting, updating, revitalizing, expanding, and renovating old urban buildings require proper documentation. The adoption of 3D survey techniques is essential to grant efficiency agility such purposes. This article discusses a multi-approach integration Light Detection Ranging (LiDAR) data collected by aerial terrestrial platforms, meant for the modeling building at Level Detail 3. selected presents challenging elements modeling, as blocks with different heights indented...
Registration activities combine data from different sources in order to attain higher accuracy and derive more information than available one source. The increasing availability of a wide variety sensors capable capturing high quality complementary requires parallel efforts for developing accurate robust registration techniques. Currently, photogrammetric LIDAR systems are being incorporated spectrum mapping applications such as city modeling, surface reconstruction, object recognition....
The Santa Catarina Southern Plateau is located in Brazil and a region that has gained considerable attention due to the rapid conversion of typical landscape natural grasslands wetlands into agriculture, reforestation, pasture, more recently, wind farms. This study’s main goal was characterize polarimetric attributes experimental quad-polarization acquisition mode Advanced Land Observing Satellite/Phased Array type L-band Synthetic Aperture Radar (ALOS/PALSAR-2) for mapping seven land cover...
Several photogrammetric and geographic information system applications such as surface matching, object recognition, city modeling, environmental monitoring, change detection deal with multiple versions of the same that have been derived from different sources and/or at times.Surface registration is a necessary procedure prior to manipulation these 3D datasets.This need also applicable in field medical imaging, where imaging modalities magnetic resonance (MRI) can provide temporal imagery...
Abstract. Nowadays Unmanned Aerial Vehicle (UAV) technology has attracted attention for aerial photogrammetric mapping. The low cost and the feasibility to automatic flight along commanded waypoints can be considered as main advantages of this in applications. Using GNSS/INS technologies images are taken at planned position exposure station exterior orientation parameters (position Xo, Yo, Zo attitude ω, φ, χ) direct determined. However, common UAVs (off-the-shelf) do not replace traditional...
Abstract Photogrammetric and lidar data‐sets have been used together in mapping procedures because of their complementary characteristics. However, to perform this integration both must be within a common reference frame. Although all systems include direct georeferencing procedure, the majority low‐cost photogrammetric do not facility for images even if are captured simultaneously. In recent years, high accuracy data has enabled it provide source control thus offer indirect georeferencing....
Os sistemas de laser scanner permitem a obtenção modelos digitais terreno alta resolução e exatidão. Porém, quando se necessita trabalhar em aplicações com uma menor que originalmente gerada, grande quantidade dados acarreta necessidade generalização. Este trabalho tem por objetivo verificar o comportamento da transformada wavelet na generalização do sob forma grades regulares, obtidas partir scanner. As transformadas wavelets foram implementadas programas linguagem Matlab. Foram utilizadas...
This article aims to study the importance of in situ camera calibration for integration light detection and ranging (LIDAR) photogrammetric data sets by indirect georeferencing. For this purpose, was performed estimate interior orientation parameters (IOP) flight condition, using a sub-block images (six from two opposite strips), extracted entire block set LIDAR control points (LCPs) computed three planes intersection, point cloud on building roofs. In order evaluate accuracies integration,...
The accuracy of photogrammetric and Lidar dataset integration is dependent on the quality a group parameters that models accurately conditions system at moment survey. In this sense, paper aims to study effect sub-block position in entire image block estimate interior orientation (IOP) flight be used integrated sensor (ISO). For purpose, five sub-blocks were extracted different regions block. Then, situ camera calibrations performed using sets control points (LCPs), computed by three planes’...
The direct determination of exterior orientation parameters (EOP) aerial images via integration the Inertial Measurement Unit (IMU) and GPS is often used in photogrammetric mapping nowadays. accuracies EOP depend on accurate related to sensors mounting when job performed (offsets IMU relative projection centre angles boresigth misalignment between coordinate system). In principle, values do not achieve required for application, approach, known as Integrated Sensor Orientation (ISO), refine...
Abstract. Digital photogrammetric products from the integration of imagery and lidar datasets are a reality nowadays. When surveys performed together camera is connected to system, direct georeferencing can be applied compute exterior orientation parameters images. Direct images requires accurate interior perform application. Camera calibration procedure (IOPs). Calibration researches have established that obtain IOPs, must with same or equal condition survey done. This paper shows...
An aerial multihead camera consists of a photogrammetric system composed multiple cameras, which are mounted together in main structure. By combining the images acquired simultaneously from each camera, single synthetic image with much larger coverage can be generated. Such systems usually integrated position and orientation (POS) to perform direct georeferencing (DG) or sensor (ISO). However, obtain mapping products high accuracy through DG procedure, it is essential implementation...
A automação do processo de revisão e atualização da cartografia áreas urbanas ainda constitui um desafio aos desenvolvedores sistemas computacionais alta produtividade. Uma das questões que permeia esse é a quantificação similaridade entre objetos representados no espaço vetorial (bases cartográficas digitais) segmentados matricial (imagens resolução). pesquisa desenvolvida Laboratório Fotogrametria Departamento Geomática UFPR, ora apresentada, parte premissa existência dados qualificados...
The Direct Sensor Georeferencing (DSG) can co-register both photogrammetric and light detection ranging (lidar) datasets in a common mapping reference system. This procedure is based on the information (position orientation) derived from Global Navigation Satellite System (GNSS) Inertial Measurement Unit (IMU) data. Due to inaccurate system mounting parameters, attitudes positions are badly calculated. In this scenario, accuracy of boresight misalignment angles (physical between digital...
This study investigates the potential use of close-range and low-cost terrestrial RGB imaging sensor for fruit detection in a high-density apple orchard Fuji Suprema fruits (Malus domestica Borkh). The area is typical located small holder farm Santa Catarina’s Southern plateau (Brazil). Small farms that state are responsible more than 50% Brazil’s production. Traditional digital image processing approaches such as color space conversion (e.g., rgb, HSV, CIE L*a*b*, OHTA[I 1 , I 2 3 ]) were...
The geometric calibration of time-of-flight range cameras is a necessary quality assurance measure performed to estimate the interior orientation parameters. Self-calibration from network imagery an array signalized targets arranged in one or two planes can be used for this purpose. latter configuration requires addition parametric model internal light scattering biases observations background plane due presence foreground plane. In previous study MESA Imaging SwissRanger cameras, such was...
O conhecimento dos parâmetros que definem a geometria interna de uma câmara é fundamental em trabalhos fotogramétricos. Porém, suma importância o processo calibração da seja realizado condições técnicas e ambientais similares ao aerolevantamento. No georreferenciamento direto os orientação exterior podem ser determinados com base nas observações GPS INS. A utilização destes parâmetros, um adicionais, possibilita atenuação correlações entre interior exterior. Este artigo investiga uso posição...
Abstract: For a long time, in many countries, questions involving disputes about land ownership has generated demand for geoinformation and documentation. In most cases, access researchers is restricted or humanely impossible by eminence of conflicts, even armed. these use Remote Sensing Photogrammetry to enable their studies. However, the dynamics phenomenon being studied often requires approaches that traditional techniques become unviable unable fulfil. This work shows results an approach...
Abstract. The direct determination of exterior orientation parameters (EOP) aerial images via integration the Inertial Measurement Unit (IMU) and GPS is often used in photogrammetric mapping nowadays. accuracies EOP depend on accurate related to sensors mounting when job performed (offsets IMU relative projection centre angles boresigth misalignment between coordinate system). In principle, values do not achieve required for application, approach, known as Integrated Sensor Orientation...