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High performance multi-dimensional (2D/3D) FFT-Shift implementation on Graphics Processing Units (GPUs) 图形处理单元(gpu)上的高性能多维(2D/3D) FFT-Shift实现
2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 2012-12-01 DOI: 10.1109/CIBEC.2012.6473306
M. Abdellah, S. Saleh, A. Eldeib, A. Shaarawi
{"title":"High performance multi-dimensional (2D/3D) FFT-Shift implementation on Graphics Processing Units (GPUs)","authors":"M. Abdellah, S. Saleh, A. Eldeib, A. Shaarawi","doi":"10.1109/CIBEC.2012.6473306","DOIUrl":"https://doi.org/10.1109/CIBEC.2012.6473306","url":null,"abstract":"Frequency domain analysis is one of the most common analysis techniques in signal and image processing. Fast Fourier Transform (FFT) is a well know tool used to perform such analysis by obtaining the frequency spectrum for time- or spatial-domain signals and vice versa. FFT-Shift is a subsequent operation used to handle the resulting arrays from this stage as it centers the DC component of the resulting array at the origin of the spectrum. The modern Graphics Processing Units (GPUs) can be easily exploited to efficiently execute this operation considering the Compute Unified Device Architecture (CUDA) technology that was released by NVIDIA. In this work, we present an efficient high performance implementation for two- and three-dimensional FFT-Shift on the GPU exploiting its highly parallel architecture relying on the CUDA platform. We use Fourier volume rendering as an example to demonstrate the significance of this proposed implementation. It achieves a speedup of 65X for the 2D case & 219X for the 3D case.","PeriodicalId":416740,"journal":{"name":"2012 Cairo International Biomedical Engineering Conference (CIBEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115231110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Microwave imaging of breast using combination of biomechanical and electrical properties 结合生物力学和电学特性的乳房微波成像
2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 1900-01-01 DOI: 10.1109/CIBEC.2012.6473302
B. Henin, A. Abbosh
{"title":"Microwave imaging of breast using combination of biomechanical and electrical properties","authors":"B. Henin, A. Abbosh","doi":"10.1109/CIBEC.2012.6473302","DOIUrl":"https://doi.org/10.1109/CIBEC.2012.6473302","url":null,"abstract":"A theoretical model for the variations in the biomechanical properties of breast tissues under the influence of external pressure is derived. The derived model is employed in a microwave imaging method that aims to extract the three-dimensional biomechanical properties of breast. The presented imaging method is based on the high contrast in the biomechanical properties between healthy and malignant tissues. In the proposed method, the breast is inserted in an enclosure that has an array of ultra-wideband antennas embedded in the upper movable plate of the enclosure. Each of those antennas transmits an ultra-wideband pulse towards the breast and measure the backscattered pulse before and after compressing the breast by a controlled force applied at the top movable plate. To get a clear three-dimensional image for the strain distribution in breast tissues, a sliding-window cross-correlation is utilized. Since lesion tissue is much stiffer than healthy breast tissues then regions of zero strain indicate areas of suspected tumor.","PeriodicalId":416740,"journal":{"name":"2012 Cairo International Biomedical Engineering Conference (CIBEC)","volume":"672 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116103898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Brain stroke detection using continuous wavelets transform matching filters 脑卒中检测使用连续小波变换匹配滤波器
2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 1900-01-01 DOI: 10.1109/CIBEC.2012.6473328
Samah Mustafa, A. Abbosh, B. Henin, D. Ireland
{"title":"Brain stroke detection using continuous wavelets transform matching filters","authors":"Samah Mustafa, A. Abbosh, B. Henin, D. Ireland","doi":"10.1109/CIBEC.2012.6473328","DOIUrl":"https://doi.org/10.1109/CIBEC.2012.6473328","url":null,"abstract":"A computer-aided detection algorithm that is useful for diagnosing brain stroke is presented. Continuous Wavelet Transform matching filters is applied to identify the backscattered microwave signals from abnormal objects in the brain. The simulation results show that energy distribution of filters outputs in wavelets domain., in terms of time translation of correlation peak and range of scales in the estimated energy., is a promising candidate signature for diagnosing a hemorrhagic brain stroke. The simulation is done using an emulated head phantom., and two-dimensional finite-difference time-domain (FDTD).","PeriodicalId":416740,"journal":{"name":"2012 Cairo International Biomedical Engineering Conference (CIBEC)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116165491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Head phantom for testing microwave systems for head imaging 头部成像微波系统测试用头模
2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 1900-01-01 DOI: 10.1109/CIBEC.2012.6473320
B. Mohammed, A. Abbosh, B. Henin, P. Sharpe
{"title":"Head phantom for testing microwave systems for head imaging","authors":"B. Mohammed, A. Abbosh, B. Henin, P. Sharpe","doi":"10.1109/CIBEC.2012.6473320","DOIUrl":"https://doi.org/10.1109/CIBEC.2012.6473320","url":null,"abstract":"The fabrication of a human head phantom for the use in microwave systems designed for head imaging is presented. Since most of the ongoing research activities on microwave imaging of human head use the band from 1 GHz to 4 GHz, the fabricated phantom is designed to emulate the electrical properties of human brain tissues across that band. A material that has electrical properties equal to those of the soft human brain tissues is manufactured using simple substances. A fabricated material that resembles the shape of human skull is used to contain the developed soft tissues. The measured properties of the fabricated phantom using a suitable dielectric probe are in good agreement with the properties of the real head tissues.","PeriodicalId":416740,"journal":{"name":"2012 Cairo International Biomedical Engineering Conference (CIBEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128828120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Microwave breast imaging sensor using compact and directive antenna with fixed mainbeam direction 微波乳房成像传感器采用小型定向天线，主波束方向固定
2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 1900-01-01 DOI: 10.1109/CIBEC.2012.6473308
Yifan Wang, A. Abbosh, B. Henin
{"title":"Microwave breast imaging sensor using compact and directive antenna with fixed mainbeam direction","authors":"Yifan Wang, A. Abbosh, B. Henin","doi":"10.1109/CIBEC.2012.6473308","DOIUrl":"https://doi.org/10.1109/CIBEC.2012.6473308","url":null,"abstract":"The design of a compact directive antenna for use in microwave imaging systems for early breast cancer detection is presented. The proposed element uses a modified coplanar waveguide fed tapered slot antenna. To improve the directivity and fix the direction of the mainbeam, the proposed antenna uses curved slots located near the open end of the tapered aperture and a semi-rectangular slot at the back of one of the conducting flares. The presented performance of the antenna indicates directive properties with fixed direction of end-fire radiation and distortionless time domain operation across the band from 3.1 GHz to 10.6 GHz. The proposed antenna is used to construct a circular planar array. The imaging results for a cylindrical breast modal is developed using confocal radar image reconstruction algorithm.","PeriodicalId":416740,"journal":{"name":"2012 Cairo International Biomedical Engineering Conference (CIBEC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122915327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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