工程科学与技术2017，Vol.49Issue(4)：97-103,7.DOI:10.15961/j.jsuese.201600429
平行算子及其在图像平行结构检测中的应用
Parallel Operator and Application to Parallel Structures Detection in Images
摘要
Abstract
Parallel lines and polygons consisting of parallel structure appear more in images.In the past,the parallelism of two straight lines was judged according to their line slope,and the detection of polygons consisting of parallel structure required prior information or specific polygons.The research on the detection of general parallel structures was little.After full study of characteristics of parallel structures,the definition of parallel operator based on distance information was proposed in this paper,which was used to realize the detection of parallel structures in images.Firstly,the definition of parallel operator was given by using the relation between the point-to-line distance and the point-topoint distance.Secondly,parallel point groups were obtained according to the defined parallel operator once the valid pixels were got in images.Thirdly,parallel point groups were merged based on the direction information,and parallel lines were then detected using Hough transform.Finally,the existence of the segments between intersections of lines was verified,and polygons were thus attained according to the endpoint location of existing segments.Experimental results showed the parallel operator defined in this paper could be used to detect the parallel point groups in the real image well,which could even more resist the large noise when the accuracy of parallelism was not high;the parallel structure detection algorithm based on parallel operator showed good detection of the parallel straight lines and polygons consisting of parallel structure in the image.The main work of this paper was:1)Proposed the definition of parallel operator according to the distance information between two points.2)Used the parallel operator to detect the parallel lines and polygons consisting of parallel structure in the image,which provided a new idea for related research.3)Gave an effective method to extract valid pixels which made the algorithm more robust to noise and reduced the computational load.The proposed algorithm could detect parallel structures accurately in the image and was universal in practical applications.关键词
平行算子/平行结构/平行直线/具有平行结构的多边形Key words
parallel operator/parallel structure/parallel lines/polygons consisting of parallel lines分类
信息技术与安全科学引用本文复制引用
贾利琴,刘红敏,王志衡..平行算子及其在图像平行结构检测中的应用[J].工程科学与技术,2017,49(4):97-103,7.基金项目
国家自然科学基金资助项目(61572173 （）
61472119 （）
61472373 （）
61401150) （）
河南省高校科技创新人才计划资助项目(13HAST-IT039) （13HAST-IT039）
河南理工大学创新型科研团队项目资助(T2014-3) （T2014-3）
