Results 11 to 20 of about 26,495 (255)

GEOMETRICAL CORRELATION AND MATCHING OF 2D IMAGE SHAPES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Abstract. The problem of image correspondence measure selection for image comparison and matching is addressed. Many practical applications require image matching "just by shape" with no dependence on the concrete intensity or color values. Most popular technique for image shape comparison utilizes the mutual information measure based on probabilistic ...
Y. V. Vizilter, S. Y. Zheltov
openaire   +3 more sources

Strong matching of points with geometric shapes

open access: yesComputational Geometry, 2018
Let $P$ be a set of $n$ points in general position in the plane. Given a convex geometric shape $S$, a geometric graph $G_S(P)$ on $P$ is defined to have an edge between two points if and only if there exists an empty homothet of $S$ having the two points on its boundary.
Ahmad Biniaz   +2 more
openaire   +3 more sources

Elastic Geometric Shape Matching

open access: yes, 2021
In computational geometry, geometric shape matching (GSM) problems are among the classical and well-studied geometric optimization problems. In a conventional GSM problem, the pattern P and the model Q, both from a class S of geometric shapes, are given, along with a suitable distance measure d.
openaire   +4 more sources

Convolutional Neural Network Architecture for Recovering Watermark Synchronization

open access: yesSensors, 2020
In this paper, we propose a convolutional neural network-based template architecture that compensates for the disadvantages of existing watermarking techniques that are vulnerable to geometric distortion.
Wook-Hyung Kim   +3 more
doaj   +1 more source

Fragment Splicing Method Combined with Surface Texture and Fracture Contour [PDF]

open access: yesJisuanji gongcheng, 2019
In the process of natural environment and artificial excavation of pottery relics,the fragments are easy to be damaged and missing,and the integrity of the fracture site is difficult to be guaranteed.The traditional geometric driven splicing method is ...
WANG Piao,GENG Guohua,YANG Wen,REN Jian
doaj   +1 more source

Characteristic Number: Theory and Its Application to Shape Analysis

open access: yesAxioms, 2014
Geometric invariants are important for shape recognition and matching. Existing invariants in projective geometry are typically defined on the limited number (e.g., five for the classical cross-ratio) of collinear planar points and also lack the ability ...
Xin Fan   +5 more
doaj   +1 more source

Autonomous Driving Robot That Drives and Returns along a Planned Route in Underground Mines by Recognizing Road Signs

open access: yesApplied Sciences, 2021
In this study, an autonomous driving robot that drives and returns along a planned route in an underground mine tunnel was developed using a machine-vision-based road sign recognition algorithm.
Heonmoo Kim, Yosoon Choi
doaj   +1 more source

Using genomics, morphometrics, and environmental niche modeling to test the validity of a narrow-range endemic snail, Patera nantahala (Gastropoda, Polygyridae) [PDF]

open access: yesZooKeys, 2023
Terrestrial gastropods are among the most imperiled groups of organisms on Earth. Many species have a complex taxonomic history, often including poorly defined subspecies, most of which have not been the focus of modern systematics research.
Nathan V. Whelan   +3 more
doaj   +3 more sources

Local Geometric Features Extraction and Matching Algorithm of Cultural Relic Surface Based on Shape Index [PDF]

open access: yesJisuanji gongcheng, 2016
The global shape retrieval is used for relic model which has the characteristics of similar overall shape and obvious detail difference.Due to the limitation of accuracy,it is difficult to obtain satisfactory retrieval results.So this paper proposes a ...
ZHOU Jilai,ZHOU Mingquan,GENG Guohua,WANG Xiaofeng
doaj   +1 more source

A Scalable Combinatorial Solver for Elastic Geometrically Consistent 3D Shape Matching

open access: yes2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022
CVPR ...
Paul Roetzer   +3 more
openaire   +3 more sources

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