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BPT Algorithm for Weighting Ray Matrix in ART Algorithm

Xia Weifang

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Abstract

A weighting approach for ray matrix in ART algorithm for ultrasonic computerized tomography of concrete is developed.Firstly,a low-resolution image is generated by BPT algorithm and which is used as initial value of iteration.Then,information of low-resolution image is used as weighting coefficients for ray matrix of ART algorithm.Image information and numerical information are used fully.High speed and low speed abnormal units can be weighted.As data error is less than 0.5%,examples show that the accuracy and iteration speed of improved method are better than that of traditional ART algorithm.

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What this paper is about

A weighting approach for ray matrix in ART algorithm for ultrasonic computerized tomography of concrete is developed.Firstly,a low-resolution image is generated by BPT algorithm and which is used as initial value of iteration.Then,information of low-resolution image is used as weighting coefficients for ray matrix of ART algorithm.Image information and numerical information are used fully.High speed and low speed abnormal units can be weighted.As data error is less than 0.5%,examples show that the accuracy and iteration speed of improved method are better than that of traditional ART algorithm.

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Available abstract

A weighting approach for ray matrix in ART algorithm for ultrasonic computerized tomography of concrete is developed.Firstly,a low-resolution image is generated by BPT algorithm and which is used as initial value of iteration.Then,information of low-resolution image is used as weighting coefficients for ray matrix of ART algorithm.Image information and numerical information are used fully.High speed and low speed abnormal units can be weighted.As data error is less than 0.5%,examples show that the accuracy and iteration speed of improved method are better than that of traditional ART algorithm.

Key concepts: Weighting, Algorithm, Matrix (chemical analysis), Image (mathematics), Computer science, Resolution (logic), Value (mathematics), Mathematics

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