A group of Romanian researchers active in the field of fundamental and applied research in optoelectronics has developed an unified complex digital model. The digital package of data visualization of complementary investigations is actually a 3D online interactive graphic interface based on a procedure for the association of imaging information obtained following non-destructive, non-invasive investigations conducted with photonic techniques.
Currently, there are methods and algorithms for obtaining 3D digital representations by using stereoscopic photographs as well as methods for overlaying 2D digital images with 3D digital models used in texturing 3D graphics in the multimedia industry. But there was no unitary model of simultaneous viewing, on a digital replica of a 3D surface, of the multi-layer imaging information provided by several photon investigation techniques. The Romanian team solved this technical problem by developing an unified complex digital model; thus, the digital support of the 3D replica of the object or surface studied allows the hidden details of the paintings to be found on any kind of support and detachments or "hidden" defects under the layers of paint or even plaster. Plus, the digital replica can also be studied in detail in other locations outside the site or museum (e.g. in laboratory or classrooms) and there is no need to have a team of experts on site. In conclusion, the invention relates to a procedure for the association of imaging information generated by non-invasive and non-contact photon techniques of investigating the quality of multi-layer surfaces of art objects.
The investigation and diagnosis techniques contained in the present visualization technology are: 3D laser scanning, LIF Scanning (Lase Induced Fluorescence Spectroscopy), LDV scans (Laser Doppler Vibrometry), multispectral & hyperspectral imaging, thermal imaging, colorimetry and microscopy.
The investigation devices deliver data as images representing specific characteristics of the investigated surface. Having such a collection of different data types from different devices may be confusing for some investigators. Therefore, instead of looking at several distinct data images and a digital 3D model of an investigated area, the digital model contains all the available data of the studied surface. In this respect, the researchers have developed a method of correlating all the imagistic data results on the surface of a work of art with its 3D digital representation. The resulted models are accessible via the Internet in a virtual interactive environment that allows the viewer to study the investigated surface with all the needed data overlapped on the areas where they were collected.
The overtone of the results with the 3D model is made based on the matrices of the investigated areas, by associating every pixel of the 2D recorded images as intensity distribution maps with the vertex group corresponding top that pixel, from the 3D digital model of the scanned area. Based on data correlations, the 3D model of the area will be created and it will be glued to the other areas so as to create the final 3D digital replica of the object.
The Romanian team is looking for SMEs, university or R&D centres etc. for collaboration based on services or research cooperation agreement.
Via services agreement the Romanian researchers are offering professional services related to the digital model to universities, museums, local authorities, SMEs, R&D institutes etc. that are seeking for a specific partner able to perform the complex procedures of the visualization technology.
The results that the Romanian team expects to achieve via research cooperation are the improvement of the digital model capacities and further development of ideas associated to this visualization technology by cross-disciplinary approach. Thus, the research cooperation has the potential to discover new openings in the area of optoelectronics & related fields.