利用霍夫变换检测射线照相标定标记

Q3 Engineering Telfor Journal Pub Date : 2019-01-01 DOI:10.5937/TELFOR1901030N
Lena D. Novovic, V. Ostojic, Đ. Starčević, V. Petrovic
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引用次数: 1

摘要

本文分析了圆形射线照相标记物简单检测的可能性。为了检测标记,我们使用了霍夫变换。分析了两种方法:检测图像边缘和不检测图像边缘,其中在霍夫投票过程中使用像素梯度,即增加累加器值。对13张临床x线影像进行评价。结果表明,基于梯度大小的图像边缘检测方法对参考圆的空间匹配度仅比人工标注值低0.22%,而基于梯度大小的图像边缘检测方法对参考圆的空间匹配度比人工标注值低3.2%。
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Radiography calibration marker detection using Hough transformation
In this paper we analyse the possibility of simple detection of circular radiography markers. To detect the marker, we utilised the Hough transform. Two approaches were analysed: with detecting image edges and without image edge detection where pixel gradient was used in the Hough voting process, i.e. to increase the accumulator values. Approaches were evaluated on 13 clinical radiography images. It was shown that the approach that detects image edges spatially matches the reference circles only 0.22 % less than manual annotation values, whereas the approach that uses just the gradient magnitudes spatially matches the reference circles 3.2 % less than manual annotations.
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来源期刊
Telfor Journal
Telfor Journal Engineering-Media Technology
CiteScore
1.50
自引率
0.00%
发文量
8
审稿时长
23 weeks
期刊介绍: The TELFOR Journal is an open access international scientific journal publishing improved and extended versions of the selected best papers initially reported at the annual TELFOR Conference (www.telfor.rs), papers invited by the Editorial Board, and papers submitted by authors themselves for publishing. All papers are subject to reviewing. The TELFOR Journal is published in the English language, with both electronic and printed versions. Being an IEEE co-supported publication, it will follow all the IEEE rules and procedures. The TELFOR Journal covers all the essential branches of modern telecommunications and information technology: Telecommunications Policy and Services, Telecommunications Networks, Radio Communications, Communications Systems, Signal Processing, Optical Communications, Applied Electromagnetics, Applied Electronics, Multimedia, Software Tools and Applications, as well as other fields related to ICT. This large spectrum of topics accounts for the rapid convergence through telecommunications of the underlying technologies towards the information and knowledge society. The Journal provides a medium for exchanging research results and technological achievements accomplished by the scientific community from academia and industry.
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