Extraction of building roof edges from LiDAR data to optimize the digital surface model for true orthophoto generation

E Widyaningrum, RC Lindenbergh… - … Archives of the …, 2018 - isprs-archives.copernicus.org
… ) to project the photo orthogonally and minimize geometric … a convex hull algorithm followed
by a back-projection of 3D to … line fitting to get a robust first building edge. For the second …

Facet segmentation-based line segment extraction for large-scale point clouds

Y Lin, C Wang, B Chen, D Zai… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
… and reliable algorithm, which is capable of extracting line segments … line segments, but rather
approximate the curve edges by … method [5] extracts line segments based on projected 2-D …

Line-based 3d building abstraction and polygonal surface reconstruction from images

J Guo, Y Liu, X Song, H Liu, X Zhang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
… Then for an image with a specific resolution, we apply the LSD algorithm to extract line … of
each line segment in set C onto linf , thus the projection points will distribute on both sides of …

Recognition of feature curves on 3D shapes using an algebraic approach to Hough transforms

ML Torrente, S Biasotti, B Falcidieno - Pattern Recognition, 2018 - Elsevier
… are interested to the extraction of features contours that locally can be projected on a plane
Algorithm 2. The feature points X of the model M are extracted by selecting the vertices at …

Fast 3D line segment detection from unorganized point cloud

X Lu, Y Liu, K Li - arXiv preprint arXiv:1901.02532, 2019 - arxiv.org
… Unlike traditional methods which usually extract 3D edge points … Then the LSD algorithm
[1] is applied to extract 2D line … 3) 2D-3D Re-projection: Given the 2D line segments extraction …

A line/trimmed NURBS surface intersection algorithm using matrix representations

J Shen, L Busé, P Alliez, N Dodgson - Computer Aided Geometric Design, 2016 - Elsevier
… In our context, this extraction algorithm via SVD is simplified as Step 1–4 in the following …
patches are adjacent via an edge we refer to a common edge. When an edge corresponds to an …

Eight-Point Algorithm

Z Zhang - Computer Vision: A Reference Guide, 2021 - Springer
Over the intervening years, most edge detection algorithms … location of these vertical lines
on the ground, we can get an … , by implicitly describing the orthogonal projection point x1. A …

Origamizer: A practical algorithm for folding any polyhedron

E Demaine, T Tachi - 2017 - dspace.mit.edu
… of paper into a shape with an orthogonal projection equal to a … of this step of the algorithm,
which get applied to all waffle … dual edge maps to a stream – a C1 curve consisting of line

2-line exhaustive searching for real-time vanishing point estimation in manhattan world

X Lu, J Yaoy, H Li, Y Liu, X Zhang - 2017 IEEE Winter …, 2017 - ieeexplore.ieee.org
… efficient algorithm to estimate 1, 2 or 3 orthogonal vanishing … low level (edges) through
mid-level (lines and vanishing points) … toward the image plane is projected onto the image plane. …

Absolute pose estimation from line correspondences using direct linear transformation

B Přibyl, P Zemčík, M Čadík - Computer Vision and Image Understanding, 2017 - Elsevier
… a combined projection matrix estimated by the DLT algorithm. It … parameters are extracted
from the estimated projection matrix. … flawlessly if the 3 directions are mutually orthogonal. DLT-…