Results 41 to 50 of about 383,277 (166)

Estimating Mangrove Forest Volume Using Terrestrial Laser Scanning and UAV-Derived Structure-from-Motion

open access: yesDrones, 2019
Mangroves provide a variety of ecosystem services, which can be related to their structural complexity and ability to store carbon in the above ground biomass (AGB).
Angus D. Warfield, Javier X. Leon
doaj   +1 more source

Structure from Periodic Motion [PDF]

open access: yes, 2006
We show how to exploit temporal periodicity of moving objects to perform 3D reconstruction. The collection of period-separated frames serve as a surrogate for multiple rigid views of a particular pose of the moving target, thus allowing the use of standard techniques of multiview geometry.
Serge J. Belongie, Josh Wills
openaire   +2 more sources

Shape ambiguities in structure from motion [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1996
This paper examines the fundamental ambiguities and uncertainties inherent in recovering structure from motion. By examining the eigenvectors associated with null or small eigenvalues of the Hessian matrix, we can quantify the exact nature of these ambiguities and predict how they affect the accuracy of the reconstructed shape.
Richard Szeliski, Sing Bing Kang
openaire   +1 more source

Non-sequential structure from motion [PDF]

open access: yes2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops), 2011
Prior work on multi-view structure from motion is dominated by sequential approaches starting from a single two-view reconstruction, then adding new images one by one. In contrast, we propose a non-sequential methodology based on rotational consistency and robust estimation using convex optimization. The resulting system is more robust with respect to (
Enqvist, Olof   +2 more
openaire   +2 more sources

Terrestrial Image-Based Point Clouds for Mapping Near-Ground Vegetation Structure: Potential and Limitations

open access: yesFire, 2020
Site-specific information concerning fuel hazard characteristics is needed to support wildfire management interventions and fuel hazard reduction programs.
Luke Wallace   +4 more
doaj   +1 more source

Transformers in Unsupervised Structure-from-Motion

open access: yes, 2023
International Joint Conference on Computer Vision, Imaging and Computer Graphics. Cham: Springer Nature Switzerland, 2022. Published at "Communications in Computer and Information Science, vol 1815. Springer Nature".
Hemang Chawla   +3 more
openaire   +2 more sources

Understanding gully erosion development through a geomorphological approach

open access: yesSoil and Water Research
This study aims to identify the gully erosion typology and development using a geomorphological approach. Gully geomorphology features were executed using combined photogrammetric approaches: aerial photography (unmanned aerial vehicle, UAV) and ...
Edwin Maulana   +2 more
doaj   +1 more source

Structure from Motion on a Sphere [PDF]

open access: yes, 2016
in European Conference on Computer Vision (ECCV ...
openaire   +2 more sources

Affine and Projective Structure from Motion [PDF]

open access: yesProcedings of the British Machine Vision Conference 1992, 1992
We demonstrate the recovery of 3D structure from multiple images, without attempting to determine the motion between views. The structure is recovered up to a transformation by a 3D linear group — the affine and projective group. The recovery does not require knowledge of camera intrinsic parameters or camera motion.
Demey, S, Zisserman, A, Beardsley, P
openaire   +2 more sources

Correspondence-free Structure from Motion [PDF]

open access: yesInternational Journal of Computer Vision, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ameesh Makadia   +2 more
openaire   +2 more sources

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