Results 131 to 140 of about 55,134,654 (225)

Collinearity and Coplanarity Constraints for Structure from Motion

, 2006
Structure from motion (SfM) comprises techniques for estimating 3D structures from uncalibrated 2D image sequences. This work focuses on two contributions: Firstly, a stability analysis is performed and the error propagation of image noise is studied ...
Klette, R., Rosenhahn, B., Liu, G.
core  

Supplementation of Lidar Scans with Structure from Motion (SfM) Data

Electronic Imaging, 2016
Fabian Gassen, Eberhard Hasche, Patrick Ingwer, Reiner Creutzburg   +3 more
openaire   +2 more sources

DATAP-SfM: Dynamic-Aware Tracking Any Point for Robust Structure from Motion in the Wild

CoRR
This paper proposes a concise, elegant, and robust pipeline to estimate smooth camera trajectories and obtain dense point clouds for casual videos in the wild. Traditional frameworks, such as ParticleSfM~\cite{zhao2022particlesfm}, address this problem by sequentially computing the optical flow between adjacent frames to obtain point trajectories. They
Weicai Ye, Xinyu Chen, Ruohao Zhan, Di Huang, Xiaoshui Huang, Haoyi Zhu, Hujun Bao, Wanli Ouyang, Tong He 0001, Guofeng Zhang 0001   +9 more
openaire   +3 more sources

EC-SfM: Efficient Covisibility-based Structure-from-Motion for Both Sequential and Unordered Images

, 2023
Structure-from-Motion is a technology used to obtain scene structure through image collection, which is a fundamental problem in computer vision. For unordered Internet images, SfM is very slow due to the lack of prior knowledge about image overlap.
Bao, Chong, Zhang, Guofeng, Liu, Haomin, Bao, Hujun, Zhou, Xin, Ye, Zhichao   +5 more
core  

Improving 3D reconstruction quality for root phenotyping: assessing the impact of camera calibration and imaging parameters

Plant Methods
Accurate 3D reconstruction is essential for high-throughput plant phenotyping, particularly for studying complex structures such as root systems. While photogrammetry and Structure from Motion (SfM) techniques have become widely used for 3D root imaging,
Peter Pietrzyk, Suxing Liu, Alexander Bucksch   +2 more
doaj   +1 more source

Development of an erosion testing method using Structure from Motion (SfM) photogrammetry

Journal of the Japanese Society of Revegetation Technology, 2022
Masashi KAJIMOTO, Dai NAKAMURA, Takayuki KAWAGUCHI, Shunzo KAWAJIRI, Toshimi MUNEOKA   +4 more
openaire   +1 more source

Temporal integration in structure from motion

A temporal integration model is proposed that predicts the results reported in 4 psychophysical experiments. The main findings were (a) the initial part of a structure-from-motion (SFM) sequence influences the orientation evoked by the final part of that
Caudek C, Domini F, Vuong QC
core   +3 more sources

The strong influence of contour geometry in Structure from Motion (SFM)

Journal of Vision, 2019
Xiaoli He, Jacob Feldman, Manish Singh
openaire   +1 more source

Salient Frame Extraction for Structure from Motion

, 2001
We propose a key frame extraction mechanism to aid the Structure from Motion (SfM) problem when dealing with image sequences from video cameras. Due to high frame rates (15 frames per second or more) the baseline between frames can be very small and the ...
Roth, Gerhard, Whitehead, A.
core  

Photogrammetry and 3D Gaussian Splatting for 4D plant growth capture and greenhouse digital twins. [PDF]

Biodivers Data J
Ylinampa TA, Kõljalg U.
europepmc   +1 more source