{"title":"Image fast reconstruction algorithm based on improved orthogonal matching pursuit","authors":"Hu Huiyin","doi":"10.3788/gxjs20144006.0515","DOIUrl":null,"url":null,"abstract":"Sampling interval required for traditional sampling is small,when the signal is too long,the sample volume is increased,the more time is consumed,the more storage space is taken up.A improved orthogonal matching pursuit(OMP)algorithm based on atomic matching criterion of Dice coefficient(DOMP)is used to reconstruct images based on Daubechies wavelet transform base as sparse transform base and Gaussian random matrices as measurement matrices.In the atomic matching of DOMP algorithm the arithmetic mean is introduced to replace the geometric mean,the role of an important component in the vector is more prominent using of Dice measurement,so it enables more accurately to pick out the best match with the residual vector atoms from the dictionary.The experiment results show that the reconstruction error of images has great improvements under the same number of measurement values.The quality of the reconstructive image is improved about 2%,the probability of the reconstructive image is improved about 7%,this algorithm has higher application value.","PeriodicalId":35591,"journal":{"name":"光学技术","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"光学技术","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.3788/gxjs20144006.0515","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 4
Abstract
Sampling interval required for traditional sampling is small,when the signal is too long,the sample volume is increased,the more time is consumed,the more storage space is taken up.A improved orthogonal matching pursuit(OMP)algorithm based on atomic matching criterion of Dice coefficient(DOMP)is used to reconstruct images based on Daubechies wavelet transform base as sparse transform base and Gaussian random matrices as measurement matrices.In the atomic matching of DOMP algorithm the arithmetic mean is introduced to replace the geometric mean,the role of an important component in the vector is more prominent using of Dice measurement,so it enables more accurately to pick out the best match with the residual vector atoms from the dictionary.The experiment results show that the reconstruction error of images has great improvements under the same number of measurement values.The quality of the reconstructive image is improved about 2%,the probability of the reconstructive image is improved about 7%,this algorithm has higher application value.
光学技术Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
0.60
自引率
0.00%
发文量
6699
期刊介绍：
The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months.
The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".
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