A hardware development for optical tomography system using switch mode fan beam projection

Simulation of Image Fusion of Dual Modality (Electrical Capacitance and Optical Tomography) in Solid/Gas Flow

“…Electrical capacitance Low cost, no radiation, rapid response and robustness [1,3], full concentration distribution [2], temporal resolution [3] Blurred image in low concentration distribution below \30% [2,5], image reconstruction complicated [1] Optical Spatial resolution 2% [2,5], good measurement in medium distribution and content in whole investigate cross section simultaneously [6], safe and free of electromagnetic interference [6], low cost…”

“…1. The fan beam projection was the approach utilized to obtain higher spatial resolution as compared to the system with similar number of sensors in parallel projection [5].…”

“…2. The relationship between the number of solid particles passing through a beam and the corresponding sensor output voltage is linear [2,5]. 3.…”

“…In accordance with computed tomography standards, an image plane resolution of 512 by 512 pixels was selected for mapping the area of interest [5]. Through programming, the 128 nodes are mapped into Cartesian coordinate where the top-left corner coordinate is at (0,0) and the right-end corner is at (512,512) as shown in Fig.…”

“…In this sensor, the linear back projection (LBP) algorithm has been used to perform the image of reconstruction [5]. Combining the projection data from each sensor with its computed sensitivity maps generates the concentration profile.…”