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Electronic microscopy has been used for morphology evaluation of different materials structures. However, microscopy results may be affected by several factors. Image processing methods can be used to correct and improve the quality of…

Computer Vision and Pattern Recognition · Computer Science 2016-06-14 Alexandre Fioravante de Siqueira , Flávio Camargo Cabrera , Aylton Pagamisse , Aldo Eloizo Job

Image segmentation, the process of separating the elements within an image, is frequently used for obtaining information from photomicrographs. However, segmentation methods should be used with reservations: incorrect segmentation can…

Computer Vision and Pattern Recognition · Computer Science 2016-05-26 Alexandre Fioravante de Siqueira , Flávio Camargo Cabrera , Wagner Massayuki Nakasuga , Aylton Pagamisse , Aldo Eloizo Job

The major challenges of automatic track counting are distinguishing tracks and material defects, identifying small tracks and defects of similar size, and detecting overlapping tracks. Here we address the latter issue using WUSEM, an…

Computer Vision and Pattern Recognition · Computer Science 2018-01-19 Alexandre Fioravante de Siqueira , Wagner Massayuki Nakasuga , Sandro Guedes , Lothar Ratschbacher

This paper is directed towards the food crystal quality control area for manufacturing, focusing on efficiently predicting food crystal counts and size distributions. Previously, manufacturers used the manual counting method on microscopic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Xiaoyu Ji , Jan P Allebach , Ali Shakouri , Fengqing Zhu

One of the major difficulties of automatic track counting using photomicrographs is separating overlapped tracks. We address this issue combining image processing algorithms such as skeletonization, and we test our algorithm with several…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Alexandre Fioravante de Siqueira , Wagner Massayuki Nakasuga , Sandro Guedes

Segmentation, a useful/powerful technique in pattern recognition, is the process of identifying object outlines within images. There are a number of efficient algorithms for segmentation in Euclidean space that depend on the variational…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Xiaohao Cai , Christopher G. R. Wallis , Jennifer Y. H. Chan , Jason D. McEwen

We have developed a new method that uses wavelet analysis to remove interference fringe patterns from images. This method is particularly useful for flat fields in the common case where fringes vary between the calibration and object data.…

Astrophysics · Physics 2008-11-26 Patricio Rojo , Joseph Harrington

With the increasing adoption of metal additive manufacturing (AM), researchers and practitioners are turning to data-driven approaches to optimise printing conditions. Cross-sectional images of melt tracks provide valuable information for…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Aagam Shah , Reimar Weissbach , David A. Griggs , A. John Hart , Elif Ertekin , Sameh Tawfick

An algorithm is proposed for the segmentation of image into multiple levels using mean and standard deviation in the wavelet domain. The procedure provides for variable size segmentation with bigger block size around the mean, and having…

Safety-critical infrastructures, such as bridges, are periodically inspected to check for existing damage, such as fatigue cracks and corrosion, and to guarantee the safe use of the infrastructure. Visual inspection is the most frequent…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Andrii Kompanets , Remco Duits , Davide Leonetti , Nicky van den Berg , H. H. , Snijder

Nuclear emulsion, a tracking detector with sub-micron position resolution, has played a successful role in the field of particle physics and the analysis speed has been substantially improved by the development of automated scanning…

Instrumentation and Detectors · Physics 2015-06-12 T. Fukuda , S. Fukunaga , H. Ishida , K. Kodama , T. Matsuo , S. Mikado , S. Ogawa , H. Shibuya , J. Sudo

A wide range of techniques can be considered for segmentation of images of nanostructured surfaces. Manually segmenting these images is time-consuming and results in a user-dependent segmentation bias, while there is currently no consensus…

Image and Video Processing · Electrical Eng. & Systems 2020-08-31 Steff Farley , Jo E. A. Hodgkinson , Oliver M. Gordon , Joanna Turner , Andrea Soltoggio , Philip J. Moriarty , Eugenie Hunsicker

Segmentation of retinal vessels from retinal fundus images is the key step in the automatic retinal image analysis. In this paper, we propose a new unsupervised automatic method to segment the retinal vessels from retinal fundus images.…

Computer Vision and Pattern Recognition · Computer Science 2017-07-21 Renoh Johnson Chalakkal , Waleed Abdulla

We have developed an automatic method for segmenting fluorescence lifetime (FLT) imaging microscopy (FLIM) images of cells inspired by a multi-resolution community detection (MCD) based network segmentation method. The image processing…

Medical Physics · Physics 2014-01-06 Dandan Hu , Pinaki Sarder , Peter Ronhovde , Sandra Orthaus , Samuel Achilefu , Zohar Nussinov

We propose instance segmentation as a useful tool for image analysis in materials science. Instance segmentation is an advanced technique in computer vision which generates individual segmentation masks for every object of interest that is…

Materials Science · Physics 2021-01-06 Ryan Cohn , Iver Anderson , Tim Prost , Jordan Tiarks , Emma White , Elizabeth Holm

Fluorescence microscopy has become a widely used tool for studying various biological structures of in vivo tissue or cells. However, quantitative analysis of these biological structures remains a challenge due to their complexity which is…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Soonam Lee , Chichen Fu , Paul Salama , Kenneth W. Dunn , Edward J. Delp

Moving objects leave extended tracks in optical images acquired with a telescope that is tracking stars or other targets. By searching images for these tracks, one can obtain statistics on populations of space debris in Earth orbit. The…

Space Physics · Physics 2018-11-14 P. Hickson

The automated segmentation and tracking of macrophages during their migration are challenging tasks due to their dynamically changing shapes and motions. This paper proposes a new algorithm to achieve automatic cell tracking in time-lapse…

Image and Video Processing · Electrical Eng. & Systems 2023-01-03 Seol Ah Park , Tamara Sipka , Zuzana Kriva , George Lutfalla , Mai Nguyen-Chi , Karol Mikula

Image segmentation is a fundamental step for the interpretation of Remote Sensing Images. Clustering or segmentation methods usually precede the classification task and are used as support tools for manual labeling. The most common…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Kiran Mantripragada , Faisal Z. Qureshi

This article presents an automated method to quantify and detect symmetry elements in 2D patterns by means of image processing. Escher's woodcuts, a widely recognized didactic tool for crystallographic education of students, were used to…

Popular Physics · Physics 2019-08-22 Paul Plachinda
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