A group of researchers from the University of Guadalajara, in Spain, in collaboration with the University of the Republic in Uruguay, designed a program for digital image processing 3D from the projection and digitization of binary data that allows three-dimensional reconstruction of various objects in order to play classic cars auto parts, antiques prehispanic also serve as a tool for face recognition.
This software takes a 3D scan of the original mechanical parts or faces for a virtual model to the real dimensions (topographies) so they can be played these objects in series, because now no longer manufactured, said Jorge Luis Nuñez Flores, professor, Department of Electronics, University Center for Science 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 horizontally) using a commercial projector and a digital camera,” said Nuñez Flores.
For the 3D model is first generated using a cannon a series of light and dark lights which must be projected laterally on the object to be scanned, then the 3D camera captures patterns binary (sequences of lines), same as the triangulated be processed by the software detected dimensions to 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 manufactured Parts not have more copies, but is necessary to have the original object, so that the technical specifications are appropriate, so that the replica is functional.
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“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) mechanical parts, or making molds for mass reproduction, “he explained.
In the case of facial recognition (biometrics) 3D camera will not take photos, but you’ll get depth and facial features, information that is used to determine characteristics 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 objects digitized they can easily be reproduced by this type of equipment. However, this will only be after capture information and to reconcile both devices. (Source: AGENCY ID / DICYT)
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