首页> 外国专利> Neural network based multi-criteria optimization image reconstruction technique for imaging two- and three-phase flow systems using electrical capacitance tomography

Neural network based multi-criteria optimization image reconstruction technique for imaging two- and three-phase flow systems using electrical capacitance tomography

机译:基于神经网络的多准则优化图像重建技术,用于电容层析成像成像的两相和三相流系统

摘要

A new image reconstruction technique for imaging two- and three-phase flows using electrical capacitance tomography (ECT) has been developed based on multi-criteria optimization using an analog neural network, hereafter referred to as Neural Network Multi-criteria Optimization Image Reconstruction (NN-MOIRT)). The reconstruction technique is a combination between multi-criteria optimization image reconstruction technique for linear tomography, and the so-called linear back projection (LBP) technique commonly used for capacitance tomography. The multi-criteria optimization image reconstruction problem is solved using Hopfield model dynamic neural-network computing. For three-component imaging, the single-step sigmoid function in the Hopfield networks is replaced by a double-step sigmoid function, allowing the neural computation to converge to three-distinct stable regions in the output space corresponding to the three components, enabling the differentiation among the single phases.
机译:基于使用模拟神经网络的多准则优化(以下称为神经网络多准则优化图像重构(NN)),开发了一种使用电容层析成像(ECT)对两相和三相流成像的新图像重构技术。 -MOIRT))。重建技术是用于线性层析成像的多标准优化图像重建技术与通常用于电容层析成像的所谓的线性反投影(LBP)技术的结合。使用Hopfield模型动态神经网络计算解决了多准则优化图像重建问题。对于三分量成像,Hopfield网络中的单步S形函数被双步S形函数取代,从而使神经计算可以收敛到输出空间中与这三个分量相对应的三分稳定区域,从而实现单相之间的差异。

著录项

  • 公开/公告号US6577700B1

    专利类型

  • 公开/公告日2003-06-10

    原文格式PDF

  • 申请/专利权人 FAN LIANG-SHIH;WARSITO W.;

    申请/专利号US20010887276

  • 发明设计人 LIANG-SHIH FAN;W. WARSITO;

    申请日2001-06-22

  • 分类号A61B60/30;G01N270/40;G01N272/20;

  • 国家 US

  • 入库时间 2022-08-22 00:04:18

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