Results 1 to 10 of about 2,762 (143)
Modeling Conic Section Using Hawgent Dynamic Mathematics Software
Arithmetic, 2022 Teachers should pay attention to the deep integration of information technology and mathematics courses, so as to achieve the effect that traditional teaching methods are difficult to achieve.
Ning Yiting +3 more
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A novel camera calibration method for fish-eye lenses using line features [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 In this paper, a novel method for the fish-eye lens calibration is presented. The method required only a 2D calibration plane containing straight lines i.e., checker board pattern without a priori knowing the poses of camera with respect to the ...
P. Srestasathiern, N. Soontranon
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Exact conic section arc elements in 2D and 2.5D FEM using a coordinate transformation
IET Microwaves, Antennas & Propagation, 2021 This study introduces the conic section arc elements in 2D and 2.5D finite element method (FEM). Elements are obtained by deforming an edge in a standard triangular element through a coordinate transformation.
Lorenzo Codecasa +4 more
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Vision-based Size Estimation and Centroid Positioning of Partially Occluded Fruits
ASEAN Journal on Science and Technology for Development, 2020 The objective of this study was to propose a simple and efficient image processing algorithm for estimating the size and centroid of partially occluded round fruits. In the proposed method, the size and centroid of partially occluded fruit were estimated
Mya Thin Kyu Kyu, Nay Zar Aung
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TRAFFIC LIGHT DETECTION USING CONIC SECTION GEOMETRY [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Traffic lights detection and their state recognition is a crucial task that autonomous vehicles must reliably fulfill. Despite scientific endeavors, it still is an open problem due to the variations of traffic lights and their perception in image form ...
S. Hosseinyalmdary, A. Yilmaz
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Edge detection and mathematic fitting for corneal surface with Matlab software
International Journal of Ophthalmology, 2017 AIM: To select the optimal edge detection methods to identify the corneal surface, and compare three fitting curve equations with Matlab software. METHODS: Fifteen subjects were recruited.
Yue Di, Mei-Yan Li, Tong Qiao, Na Lu
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Equivariant adjusted least squares estimator in two-line fitting model
Modern Stochastics: Theory and Applications, 2016 We consider the two-line fitting problem. True points lie on two straight lines and are observed with Gaussian perturbations. For each observed point, it is not known on which line the corresponding true point lies.
Sergiy Shklyar
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Energy Science & Engineering, 2023 A water jet with an air ring protective layer is a promising rock‐breaking and cutting rate improvement method in submerged environment, such as oil–gas drilling. The jet flow field characteristic determines the jet impinge performance and is affected by
Liang Zhang +5 more
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A Nonstandard Generalization of Envelopes [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2008 The generalized envelopes are studied by a given nonstandard definition of envelope of a family of lines defined in a projective homogenous coordinates PHC by: u(t)x + v(t)y + w(t)z = 0.
Tahir Ismail, Ibrahim Hamad
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Engineering Proceedings, 2023 In science and technology, the application of mathematics and mathematical modelling is crucial. A more conceptual and axiomatic approach has been taken in developing the narrative from geometry in the enormous history of mathematics.
R. Delhibabu +5 more
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