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What errors are present in ECT permittivity images?

April 26, 2017ECT errors images permittivity PRESENT

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What errors are present in ECT permittivity images?

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It is not possible to obtain a unique solution for each image pixel when the number of pixels in the image exceeds the number of capacitance measurements. Furthermore, image distortion can occur because ECT is an inherently soft-field imaging method (the electric field is distorted by the material distribution inside the sensor).