Michael Kröger, M. Rosenbaum, W. Sauer-Greff, R. Urbansky, M. Lorang, M. Siegrist
{"title":"用于x射线成像模拟的不规则采样","authors":"Michael Kröger, M. Rosenbaum, W. Sauer-Greff, R. Urbansky, M. Lorang, M. Siegrist","doi":"10.1109/SPA.2015.7365140","DOIUrl":null,"url":null,"abstract":"The simulation of X-ray images can be computed efficiently using raytracing, a technique well established in 3D computer graphics and rendering. Since raytracing is a discrete technique it is prone to aliasing artefacts. However, irregular sampling is able to mitigate this problem. In this paper the influence of the probability density function of the sampling process on the reconstructed spectral density is described. It is demonstrated that irregular sampling can be used in X-ray imaging simulation to reduce the impact of aliasing.","PeriodicalId":423880,"journal":{"name":"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Irregular sampling for X-ray imaging simulation\",\"authors\":\"Michael Kröger, M. Rosenbaum, W. Sauer-Greff, R. Urbansky, M. Lorang, M. Siegrist\",\"doi\":\"10.1109/SPA.2015.7365140\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The simulation of X-ray images can be computed efficiently using raytracing, a technique well established in 3D computer graphics and rendering. Since raytracing is a discrete technique it is prone to aliasing artefacts. However, irregular sampling is able to mitigate this problem. In this paper the influence of the probability density function of the sampling process on the reconstructed spectral density is described. It is demonstrated that irregular sampling can be used in X-ray imaging simulation to reduce the impact of aliasing.\",\"PeriodicalId\":423880,\"journal\":{\"name\":\"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SPA.2015.7365140\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPA.2015.7365140","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The simulation of X-ray images can be computed efficiently using raytracing, a technique well established in 3D computer graphics and rendering. Since raytracing is a discrete technique it is prone to aliasing artefacts. However, irregular sampling is able to mitigate this problem. In this paper the influence of the probability density function of the sampling process on the reconstructed spectral density is described. It is demonstrated that irregular sampling can be used in X-ray imaging simulation to reduce the impact of aliasing.
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