A group of researchers from the Mexican University of Guadalajara in collaboration with the University of the Republic in Uruguay designed a program for digital image processing in 3D from the projection and digitization of binary data that allows three-dimensional reconstruction of different objects in order to play autoparts classic cars, antiques prehispanic also serve as a tool for face recognition.
This software performs a scan 3D parts original mechanical or faces for a virtual model with real dimensions (topographies), so that these objects can be reproduced in series, because now no longer manufactured, said Jorge Luis Nuñez Flores, professor, Department of Electronics University Center of Exact Sciences in Engineering (CUCEI) of UDG.
“The reconstruction technique involves the projection and acquisition of binary patterns (stripes of light and dark lights, deployed vertically and horizontal) by using a commercial projector and a digital camera, “said Nuñez Flores.
For the 3D model is first generated using a cannon a clear set of lights and dark which must be projected laterally on the object to be scanned, after the 3D camera captures binary patterns (sequences lines), same as when processed to be triangulated by the software detect the dimensions for form the model with actual measurements.
During this process eight filters are projected in different gray tones that serve to give the volume, texture and correct the object or face definition. Then the camera will capture the image sequence and transmit them to the software interface, where the model is presented in 3D, added Professor of CUCEI.
One of the utilities of the program designed by the UDG is manufacture pieces that do not have more copies , although you need to have the original object, so that the technical specifications are appropriate, so that the replica is functional.
“The technique developed by both research groups could be used for 3D scanning originals, archaeological or the generation of virtual models with the actual dimensions (topographies) or make molds for playback on standard mechanical parts,” explained the specialist .
In the case of facial recognition (biometrics) 3D camera will not take photos, but you’ll get depth and facial features, information used to determine traits that identify a person.
Flowers Núñez said the next step is to support 3D models with the latest printing technology in three dimensions, this in order that the digitized objects can easily be reproduced by this type of equipment. However, this will only be after capture information and to reconcile both devices.
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