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Searching the optimal parameters of a 3D scanner in surface reconstruction of a dental model using central composite design coupled with metaheuristic algorithms

Determining the right process parameters for 3D scanning is crucial for rigorously inspecting reverse-engineered dental models. However, it is seen that various parameters, such as scanning distance, light intensity, and scanning angle, are rarely examined during preliminary experimental trials. The...

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Bibliographic Details
Published in:International journal on interactive design and manufacturing 2024-12, Vol.18 (10), p.7401-7411
Main Authors: Kaushik, Ashish, Garg, Ramesh Kumar
Format: Article
Language:English
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Summary:Determining the right process parameters for 3D scanning is crucial for rigorously inspecting reverse-engineered dental models. However, it is seen that various parameters, such as scanning distance, light intensity, and scanning angle, are rarely examined during preliminary experimental trials. The proposed research examines a method for estimating the ideal values of the aforementioned scanning parameters that minimize acquisition error. The face-centered, central composite design suggested twenty runs of experimentation with varying input parameter combinations. In each of these twenty scans, a physical denture model was scanned to extract a 3D CAD model, and the standard deviation of each model was calculated to investigate into the scan accuracy of the recorded data. A neural network architecture is used to train a model across input and output, and then the model is optimized by a genetic algorithm for the best results. Through a scanning distance of 208.28 mm, scanning angle of 54.1 degrees, and light intensity of 18 W/meter square, in a total of twenty trial runs, the lowest possible standard deviation of 0.2626. The standard deviation is minimized for achieving maximum accuracy using a heuristic GA-ANN algorithm with a scanning distance of 152.4 mm, scanning angle of 61.8 degrees, and light intensity of 14 watts per square meter and same has been validated experimentally.
ISSN:1955-2513
1955-2505
DOI:10.1007/s12008-023-01587-z