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Geometric model and assessment of a dual-fisheye imaging system
(2018-06-01)
This paper presents a technique for the calibration of a 360° dual imaging system (Ricoh Theta S) composed of two cameras with fisheye lenses specially mounted in a common structure. The experiments are based on calibration ...
A Fisheye image matching method boosted by recursive search space for close range photogrammetry
(2019-06-01)
Close range photogrammetry (CRP) with large field-of-view images has become widespread in recent years, especially in terrestrial mobile mapping systems (TMMS). However, feature-based matching (FBM) with omnidirectional ...
3D Reconstruction of Citrus Trees Using an Omnidirectional Optical System
(2020-03-01)
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 ...
3D RECONSTRUCTION OF CITRUS TREES USING AN OMNIDIRECTIONAL OPTICAL SYSTEM
(Ieee, 2020-01-01)
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 ...
Geometric model of a dual-fisheye system composed of hyper-hemispherical lenses
(Universidade Estadual Paulista (Unesp), 2020-03-03)
A combinação de duas lentes com FOV hiper-hemisférico em posição opostas pode gerar um sistema omnidirecional (FOV 360°) leve, compacto e de baixo custo, como Ricoh Theta S e GoPro Fusion. Entretanto, apenas algumas técnicas ...
A portable mobile terrestrial system with omnidirectional camera for close range applications
(Universidade Estadual Paulista (Unesp), 2019-03-13)
This research proposes a new technique for close-range mobile data acquisition and processing, consisting of a backpacked light-weight low-cost system. This system integrates an omnidirectional camera and a GPS/IMU system ...