Optical Tomography System: Digital Sensors for Masking Purpose in Parallel Beam Optical Tomography System
Due to the lack of the number of projections available in a Parallel Beam Optical Tomography System (only x-axis and y-axis, also known as orthogonal projection), ambiguous image will be constructed when the flowing materials fall into certain positions in the pipeline.
Therefore, two rectilinear projections are added to the system in order to correct this ambiguous image. However, the rectilinear projection only acts as a mask. Thus, converting the analog signals from the rectilinear sensors into binary digital signals is already sufficient.
Keywords: AMBIGUOUS IMAGE; DIGITAL OPTICAL SENSORS; MASK; OPTICAL TOMOGRAPHY; PARALLEL BEAM
Document Type: Research Article
Publication date: 01 October 2008
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