Zobrazeno 1 - 10
of 10
pro vyhledávání: '"L. F. Castanheiro"'
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-3-2024, Pp 57-62 (2024)
Positioning techniques are fundamental in many automation tasks with several applications. In GNSS-denied environments like in dense forests, other alternatives are required, such as inertial and visual navigation. However, Inertial Measurement Units
Externí odkaz:
https://doaj.org/article/e484428a96944b8ebc98568a13f842b2
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-3-2024, Pp 177-182 (2024)
Keypoint detectors and descriptors are essential for identifying points and their correspondences in overlapping images, being fundamental inputs for many subsequent processes, including Pose Estimation, Visual Odometry, vSLAM, Object Detection, Obje
Externí odkaz:
https://doaj.org/article/f333869405d1464d9c91bc2080c536a1
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-1-2024, Pp 43-50 (2024)
Light Detection and Ranging (LIDAR) is widely acknowledged as a robust tool for monitoring forest structure, dynamics, and changes. To achieve a high-complete forest structural model, LiDAR data acquisition from both aerial (above-canopy) and terrest
Externí odkaz:
https://doaj.org/article/9eff6652f62a4ee29093e91eea677176
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-1-W1-2023, Pp 503-509 (2023)
The large field of view and compact structure make fisheye lens cameras an attractive technology for mobile mapping systems and visual navigation. Fisheye cameras usually have a field of view equal to or higher than 180°. Lenses that can capture lig
Externí odkaz:
https://doaj.org/article/947d23972cf84e97854827bfbe740e0d
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-1-W1-2023, Pp 71-77 (2023)
Mobile laser systems have been used for close-range applications, such as agricultural management, due to the high penetrability of the laser beam enabling a unique 3D representation of the plant structure. However, some challenges remain in generati
Externí odkaz:
https://doaj.org/article/4c805cdd04f84fdd87a4172b85f846c7
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLVIII-1-W1-2023, Pp 155-160 (2023)
Fisheye lens cameras are becoming increasingly popular for vSLAM applications due to their wide field of view (FoV), providing more features to be tracked in a single image shot. However, the complex lens geometry involved in the image formation proc
Externí odkaz:
https://doaj.org/article/9c1de215777248ceaa3a5fc0dcd58a4a
Autor:
L. F. Castanheiro, A. M. G. Tommaselli, M. V. Machado, G. H. Santos, I. S. Norberto, T. T. Reis
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B1-2022, Pp 181-187 (2022)
This paper presents the assessment of a wide-angle laser scanner and a simultaneous localisation and mapping (SLAM) algorithm to estimate the trajectory and generate a 3D map of the environment. A backpack platform composed of an OS0-128 Ouster (FoV
Externí odkaz:
https://doaj.org/article/1f77a9ea3d5a49eead6e12cbbb6833f2
Publikováno v:
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-1-2021, Pp 81-87 (2021)
Fisheye cameras have been widely used in photogrammetric applications, but conventional techniques must be adapted to consider specific features of fisheye images, such as nonuniform resolution in the images. This work presents experimental results o
Externí odkaz:
https://doaj.org/article/1088222db1bf4f38868fe2f0c4b6fed0
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W12-2020, Pp 7-12 (2020)
This paper presents a feasibility study on the use of omnidirectional systems for 3D modelling of agricultural crops, aiming a systematic monitoring. Omnidirectional systems with multiple sensors have been widely used in close-range photogrammetry (C
Externí odkaz:
https://doaj.org/article/97aff38f54ca4c0c8fe7e3fcb5ef0615
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-2-W18, Pp 167-171 (2019)
Low cost imaging and positioning sensors are opening new frontiers for applications in near real-time Photogrammetry. Omnidirectional cameras acquiring images with 360° coverage, when combined with information coming from GNSS (Global Navigation Sat
Externí odkaz:
https://doaj.org/article/01b31189eaed4a78a2c152ac3e2787ca