Results 1 to 10 of about 10,451,306 (281)

SliceLRF: A Local Reference Frame Sliced along the Height on the 3D Surface [PDF]

open access: yesSensors, 2023
The local reference frame (LRF) plays a vital role in local 3D shape description and matching. Numerous LRF methods have been proposed in recent decades.
Bin Zhong, Dong Li
doaj   +7 more sources

GNSS Vector Networks in a Local Conventional Reference Frame

open access: yesApplied Sciences
The paper presents a proposal for a simple method of transforming initial GNSS vectors into a spatial local conventional reference frame. This transformation can serve as an alternative to the complex traditional procedure, which involves projecting ...
Tadeusz Gargula
doaj   +5 more sources

A Comparative Study of Weighting Methods for Local Reference Frame [PDF]

open access: yesApplied Sciences, 2020
In the field of photogrammetric engineering, computer vision, and graphics, local shape description is an active research area. A wide variety of local shape descriptors (LSDs) have been designed for different applications, such as shape retrieval ...
Wuyong Tao   +4 more
doaj   +5 more sources

LRF-Net: Learning Local Reference Frames for 3D Local Shape Description and Matching [PDF]

open access: yesSensors, 2020
The local reference frame (LRF) acts as a critical role in 3D local shape description and matching. However, most existing LRFs are hand-crafted and suffer from limited repeatability and robustness.
Angfan Zhu   +3 more
doaj   +8 more sources

On the repeatability of the local reference frame for partial shape matching [PDF]

open access: yes2011 International Conference on Computer Vision, 2011
We investigate on local reference frames (LRF) deployed with 3D descriptors to achieve invariance to objects' pose. We address the task of matching together partial views of surfaces and propose an experimental study on a large corpus of real data which allows for clearly ranking existing LRF proposals based on their repeatability.
PETRELLI, ALIOSCIA, DI STEFANO, LUIGI
exaly   +4 more sources

Head direction cells use a head-referenced dual-axis updating rule in 3D space [PDF]

open access: yesCommunications Biology
Head direction (HD) cells, comprising a compass signal for the brain’s spatial map, may update their firing during 3D movement by using a ‘dual axis’ (DA) rule that sums head rotation around a local axis and local-axis rotation around the gravity axis ...
Merlin Williams   +3 more
doaj   +2 more sources

Describing Local Reference Frames for 3-D Motion Trajectory Recognition

open access: yesIEEE Access, 2018
Motion trajectories tracked from the points of interest can provide the key relevant features for characterizing the motion patterns in video. As the increasing number of 3-D vision sensors rises, the 3-D motion trajectories that serve as motion ...
Zhanpeng Shao   +3 more
doaj   +2 more sources

A Local Reference Frame Construction Method Based on the Signed Surface Variation [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
A fast local reference frame (LRF) construction method based on the signed surface variation is proposed, which can adapt to the real-time applications such as self-driving, face recognition, object detection.
Xiaopeng YAN,Wei ZHOU,Rencan PENG,Wenliang PAN,Lei WANG,Guoxin HU
doaj   +1 more source

Conformal and empirical transformation between the PL-ETRF89 and PL-ETRF2000 reference frames using the new adjustment of the former Polish I class triangulation network [PDF]

open access: yesGeodesy and Cartography, 2021
The European reference frame ETRF2000 was introduced on the territory of Poland on 1 July 2013, named PL-ETRF2000, as a result of the appropriate measurement campaign 2008-2011.
Roman Kadaj
doaj   +1 more source

Novel 3D local feature descriptor of point clouds based on spatial voxel homogenization for feature matching

open access: yesVisual Computing for Industry, Biomedicine, and Art, 2023
Obtaining a 3D feature description with high descriptiveness and robustness under complicated nuisances is a significant and challenging task in 3D feature matching.
Jiong Yang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy