Results 31 to 40 of about 149,782 (195)

The Plumb-Line Matching Algorithm for UAV Oblique Photographic Photos

open access: yesRemote Sensing, 2023
Building facades has always been a challenge for feature matching in oblique photogrammetry due to weak textures, non-Lambertian objects, severe occlusion, and distortion.
Xinnai Zhang   +4 more
doaj   +1 more source

Study on 3D printing based on UAV oblique photogrammetry

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract UAV oblique photogrammetry can quickly reconstruct a three-dimensional real-scene model of an object, and the 3D printing technology based on the principle of additive manufacturing can print a digital three-dimensional model into a 3D object.
Jingming Yang, Guihai Yan, Pei Geng
openaire   +1 more source

ENHANCING UAV-SfM 3D MODELS ACCURACY OF UNIQUE HERITAGE INFRASTRUCTURES. CASE OF ISABEL II DAM, ALMERIA, SPAIN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In recent years, resources and computer tools have devolved to allow the production of three-dimensional (3D) models that have become great sources of data for the reconstruction of elements of forgotten heritage.
F. Agüera-Vega   +5 more
doaj   +1 more source

Analogue Modelling of Inverted Oblique Rift Systems [PDF]

open access: yes, 2005
The geometric evolution of brittle fault systems in inverted oblique and offset rift systems has been simulated using scaled sandbox analogue models. Dry fine-grained quartz sand was used to represent the brittle upper crust.
Muñoz, J.A.   +14 more
core   +1 more source

Construction of 3D landscape indexes based on oblique photogrammetry and its application for islands

open access: yesEcological Informatics, 2022
Abstract The landscape index is quantitative indicator to reflect the composition and spatial configuration characteristics of landscape ecological structures. Following the "P-C-L" frameworks, eight 3D landscape indexes were constructed to quantitatively describe the spatial landscape features and two sensitivity indexes were built to identify
Zhenghong Guo   +5 more
openaire   +1 more source

UAV BASED BRDF-MEASUREMENTS OF AGRICULTURAL SURFACES WITH PFIFFIKUS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
BRDF is a common problem in remote sensing and also in oblique photogrammetry. Common approaches of BRDF-measurement with a field goniometer are costly and rather cumbersome.
G. J. Grenzdörffer, F. Niemeyer
doaj   +1 more source

Individual Tree Parameters Estimation for Plantation Forests Based on UAV Oblique Photography

open access: yesIEEE Access, 2020
The parameters of individual trees in forests are important for accurate forestry inventory and sustainable management. Unmanned aerial vehicle (UAV) oblique photogrammetry technology plays an important role in forest surveys because of its flexibility ...
Xuemei Zhou, Xiaoli Zhang
doaj   +1 more source

Archaeological site monitoring: UAV photogrammetry can be an answer [PDF]

open access: yes, 2012
During archaeological excavations it is important to monitor the new excavated areas and findings day by day in order to be able to plan future excavation activities.
F. Rinaudo   +8 more
core   +2 more sources

Geological photogrammetry using oblique aerial photographs

open access: yesRapport Grønlands Geologiske Undersøgelse, 1988
Large areas in Greenland are covered by oblique aerial photographs, taken with 23 x 23 cm2 photogrammetric cameras of the type 'EagIe' between 1948 and 1953. Though almost all of Greenland is now covered by modem vertical photographs, the oblique photographs still represent a valuable alternative source of geological information because of the ...
Dueholm, K. S., Pedersen, A. K.
openaire   +2 more sources

Large-scale automatic block adjustment from satellite to indoor photogrammetry

open access: yesGeo-spatial Information Science, 2023
Block Adjustment (BA) is a critical procedure in the geometric processing of satellite images, responsible for compensating and correcting the geometric positioning errors of the images.
Deren Li   +5 more
doaj   +1 more source

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