Design and Fabrication of a 3-D scanning system using Optical Computed Tomography and Photogrammetry
- Resource Type
- Conference
- Authors
- Rode, Suvarna; Singh, Harshit; Thube, Nimish; Mhaske, Mayur; Ansari, Hassaan; Vadhel, Mayur
- Source
- 2021 4th Biennial International Conference on Nascent Technologies in Engineering (ICNTE) Nascent Technologies in Engineering (ICNTE), 2021 4th Biennial International Conference on. :1-5 Jan, 2021
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Integrated optics
Surface reconstruction
Three-dimensional displays
Computed tomography
Optical device fabrication
Software algorithms
Optical computing
Optical Computed Tomography
Photogrammetry
STL
MATLAB
3D Scanner
- Language
The paper illustrates a design of a 3D scanner using a combination of two techniques; Optical Computed tomography and Photogrammetry. Computed tomography (CT) is a 3D scanning technique used for developing a 3-dimensional image of the anatomical structure inside the patient. The same principle is employed in the optical CT scanner with a camera acting as the detector and the LED array acting as the source. Photogrammetry is a method that creates a 3D scan of an object utilizing a 3D point cloud generated from multiple images taken at different angles. An enclosed setup was fabricated that took images of the object automatically at different orientations. While photogrammetry enables surface profiling of an object, optical CT scanning enables the reconstruction of the internal structure of objects. An algorithm in MATLAB was developed that reshaped the scanned images in sinograms, which is converted into a 3D image. This 3D image is combined with the 3D scan obtained from Photogrammetry and is converted into STL format using Meshroom / Regard3D software for 3D Printing. Within this project's framework, a low-cost Optical Computed Tomography 3D Scanner using Arduino microcontroller has been developed.