工业CL成像研究

来源 :Computational Biomedical Imaging Workshop(2015计算生物医学成像研讨会) | 被引量 : 0次 | 上传用户:ppmm112233
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  The non-destructive testing(NDT)of plate-like specimens are important.When using the traditional computed tomography(CT)system,the x-ray is difficult topass the plate-like specimen from side view.Furthermore,to avoid collision,thedistance from x-ray tube and rotation axis cannot be too small,which means that it ishard to get high spatial resolution.We have developed a new industrial computedlaminography(ICL)system to conquer the above problems.In this system,an x-raysource was located under a stage which has three degrees of freedom.A planardetector was installed on a C-arm which was above the stage and can be rotatedabout an axis.The axis passed through the x-ray focal spot and was perpendicular tothe stage.The detector can move along the C-arm.Using this ICL system,we canrealize digital radiography(DR),arc scan and circular scan in different spatialresolution.In order to scan a large region,we have developed a new scanning planwith image mosaic.We believe the proposed ICL system has a broad applicationprospect.
其他文献
  I will start with a brief review of existing models(both classical and recent)for solving ill-posed linear inverse problems,that include wavelet frame based
会议
  In this talk,we focus on the challenging problem of removing the spatially varying out-of-focus blur from a single natural image.We first propose an effecti
会议
  Images by reflection imaging can be well approximated by piecewise constant functions.Thus total variation is an essential tool to regularize this kind of i
会议
  In some practical applications,restricted by scanning environment or scanned object,the projection data obtained from CT imaging system is incomplete,which
会议
  In this paper,aboundary-type meshless numerical scheme,based on the singular boundary method(SBM),is proposed to efficiently analyze the two-dimensional Sig
  Based on the recently developed MFS-based particular solution for two-dimensional problems in isotropic linear thermoelastic materials [1],we investigate th
  Spectral data across energy bins are highly correlated but the signal to noise ratio is generally poor for each energy bin due to the narrow bin width and r
会议
  We extend the existing variational model for image inpainting and propose new coupled and decoupled algorithms.In the derivation of coupled algorithm,we use
会议
  Redundancy in MRI data has been extensively exploited to reconstruct images from undersampled k-space data for shortening data acquisition duration.Adaptive
会议
  Model based image reconstruction methods have been introduced in x-ray computed tomography to enable excellent quality image reconstruction from extremely l
会议