Results 31 to 40 of about 407,227 (263)

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

Simulating Structure-from-Motion

open access: yesCoRR, 2017
This paper was written as part of a group project in the "3D Vision" course at ETH Z\"urich in Spring semester ...
Martin Hahner   +2 more
openaire   +2 more sources

The interpretation of structure from motion [PDF]

open access: yesProceedings of the Royal Society of London. Series B. Biological Sciences, 1979
Abstract The interpretation of structure from motion is examined from a computional point of view. The question addressed is how the three dimen­sional structure and motion of objects can be inferred from the two dimensional transformations of their projected images when no three dimensional information is conveyed by the individual ...
openaire   +2 more sources

Progressive Structure from Motion [PDF]

open access: yes, 2018
Structure from Motion or the sparse 3D reconstruction out of individual photos is a long studied topic in computer vision. Yet none of the existing reconstruction pipelines fully addresses a progressive scenario where images are only getting available during the reconstruction process and intermediate results are delivered to the user.
Alex Locher   +2 more
openaire   +4 more sources

Simultaneous motion segmentation and Structure from Motion [PDF]

open access: yes2011 IEEE Workshop on Applications of Computer Vision (WACV), 2011
This paper presents a novel approach to simultaneously compute the motion segmentation and the 3D reconstruction of a set of 2D points extracted from an image sequence. Starting from an initial segmentation, our method proposes an iterative procedure that corrects the misclassified points while reconstructing the 3D scene, which is composed of objects ...
Luca Zappella   +3 more
openaire   +1 more source

Perceptual Biases in the Interpretation of Non-Rigid Shape Transformations from Motion

open access: yesVision
Most existing research on the perception of 3D shape from motion has focused on rigidly moving objects. However, many natural objects deform non-rigidly, leading to image motion with no rigid interpretation.
Ryne Choi, Jacob Feldman, Manish Singh
doaj   +1 more source

Overview of Underwater 3D Reconstruction Technology Based on Optical Images

open access: yesJournal of Marine Science and Engineering, 2023
At present, 3D reconstruction technology is being gradually applied to underwater scenes and has become a hot research direction that is vital to human ocean exploration and development.
Kai Hu   +6 more
doaj   +1 more source

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   +3 more sources

How Much Can We See from a UAV-Mounted Regular Camera? Remote Sensing-Based Estimation of Forest Attributes in South American Native Forests

open access: yesRemote Sensing, 2021
Data collection from large areas of native forests poses a challenge. The present study aims at assessing the use of UAV for forest inventory on native forests in Southern Chile, and seeks to retrieve both stand and tree level attributes from forest ...
Alejandro Miranda   +6 more
doaj   +1 more source

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

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