A new framework for canny edge detector in hexagonal lattice

M Firouzi, S Fadaei, A Rashno - International Journal of Engineering, 2022 - ije.ir
Feature extraction is widely used in image processing applications such as face recognition,
character recognition, fingerprint identification and medicine. Edge features is among the …

Diatom Cribellum‐inspired Hierarchical Metamaterials: Unifying Perfect Absorption Towards Subwavelength Color Printing

X Xie, Y Huang, Z Yang, A Li, X Zhang - Advanced Materials, 2024 - Wiley Online Library
Diatom exoskeletons, known as frustules, exhibit a unique multilayer structure that has
attracted considerable attention across interdisciplinary research fields as a source of …

Application of edge detection based on hexagonal image structure to delamination detection of carbon fiber reinforced polymer material

YQ Chen, K Luo, L Chen, H Weng… - Smart Materials and …, 2022 - iopscience.iop.org
Delamination is one of the most critical damage modes in carbon fiber reinforced polymer
(CFRP) materials, and is invisible to the naked eye. Although delamination defect images of …

[HTML][HTML] High-resolution single pulse LA-ICP-MS mapping via 2D sub-pixel oversampling on orthogonal and hexagonal ablation grids–A computational assessment

D Metarapi, JT van Elteren - Talanta, 2023 - Elsevier
Laser beam profiles in analytical laser ablation–inductively coupled plasma–mass
spectrometry (LA-ICP-MS) instruments are in general homogenized to produce a flat-top …

An Accurate Volumetric Error Modeling Method for A Stereo Vision System Based on Error Decoupling

R Guo, H Cui, Y Deng, R Yang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Stereo vision (SV) is a widely used measurement technology, while accuracy is one of its
most critical properties. Currently, modeling the volumetric error of the SV system is a way to …

An effective hybrid ABC-CS optimized ANN classifier for facial expression recognition

K Babu, C Kumar - Signal, Image and Video Processing, 2024 - Springer
The necessity of identifying an individual's intentions solely through facial expressions,
without verbal communication, is crucial in daily life. Various approaches employing Artificial …

An expert system based on type-1 fuzzy logic and digital image processing for knowledge based edge and contour detection

R Ranjan, V Avasthi - International Journal of Engineering, 2023 - ije.ir
In computer vision, contour/edge detection is a crucial phenomenon. Edge detection is an
important step in contour detection, which is helpful in the identification of important data …

An efficient hexagonal image framework using pseudo hexagonal pixel for computer vision applications

P Varghese… - Journal of Intelligent & …, 2022 - content.iospress.com
Nature-inspired computing has been a real source of motivation for the development of
many meta-heuristic algorithms. The biological optic system can be patterned as a cascade …

Simplified square to hexagonal lattice conversion based on 1-D multirate processing

X Li - Signal Processing: Image Communication, 2021 - Elsevier
Hexagonal image sampling and processing are theoretically superior to the most commonly
used square lattice based sampling and processing, but due to the lack of commercial …

Rotation-Invariant Convolution Networks with Hexagon-Based Kernels

Y Tang, K Hatano, E Takimoto - IEICE TRANSACTIONS on …, 2024 - search.ieice.org
We introduce the Hexagonal Convolutional Neural Network (HCNN), a modified version of
CNN that is robust against rotation. HCNN utilizes a hexagonal kernel and a multi-block …