Another more recent proposal is the AWARE 2 gigapixel camera, started by D. In this bulky camera, the image was exposed on a 450 × 225 mm negative film, which was later digitized to form a 4 gigapixel (Gp) image. One of the first was the large format camera developed within the Gigapxl Project by Graham Flint in 2000. In fact, there have been few attempts to develop prototype cameras providing gigapixel images on the fly. Going beyond this would not take advantage of the effective resolution of the sensor, unless the size of the optical-sensor assembly were increased, which is not practical for the future development of conventional cameras. For this reason, the progression in the resolution of digital sensors has already reached the limit established by the diffraction of light and by the optical resolution provided by the lenses that cannot match the resolution of the current top digital sensors. ĭigital photographic capture with gigapixel resolution is not an easy task and serious difficulties may arise due to physical problems such as the diffraction of light, which represents a barrier that limits the sharpness that can be obtained with an optical device and a digital sensor. Other research works have used gigapixel images for documenting large Baroque illusionistic paintings. Some researchers have used gigapixel photography for documenting rupestrian paintings and even combined with multispectral imaging techniques. There are some examples, such as the French state organization Centre de Recherche et de Restauration des Musées de France CR2MF, the Italian company Haltadefinizione, or the Spanish Madpixel. Īpart from Google, there are very few companies specialized in capturing gigapixel images of artworks due to the technical complexity and the specialized equipment. Picture and detail obtained from Google Arts and Culture. Hans Holbein the Younger, 1533, The Ambasssadors. The viewers will be able to dive into the work, in such a way, that they would appreciate many details, which would be negligible to the eye in a real visit ( Figure 1). Furthermore, the virtual visualizations that can be generated from this type of image make the artwork accessible to anyone connected to the Internet. Gigapixel images allow documenting and analysing the paintings accurately, which is very useful for curators and art scholars. They are digital reproductions with a gigapixel resolution, that is, a resolution greater than 1000 megapixels, which is 50 times greater than the image resolution provided by a conventional digital camera. These works are exhibited on the Arts and Culture Project website, which contains many artworks that can be displayed with a high level of detail. In fact, many important international museums, are using these technologies in collaboration with the multinational Google, which has developed its own high-resolution digital capture system for paintings. New techniques for the dissemination of cultural heritage through digital media is one of the lines of research providing benefits to society since the research results can be available to the public by means online virtual museum displays.
The results will be disseminated through the Internet, as will be shown with some examples.
The result of this research work consisted in the gigapixel documentation of several masterpieces of the Museo de Bellas Artes of Valencia, one of the main art galleries in Spain.
#Zoomify openseadragon series#
This article describes a series of photographic methodologies and equipment, developed by the team of researchers, that have been put into practice to achieve a very high level of detail and chromatic fidelity, in the documentation and dissemination of pictorial artworks.
#Zoomify openseadragon professional#
Since today’s professional digital cameras provide images of around 40 megapixels, obtaining gigapixel images requires some special capture and editing techniques. Therefore, this kind of virtual visualization using gigapixel images has become an essential tool to enhance cultural heritage and to make it accessible to everyone.
These virtual visualizations allow the viewer to delve into the artwork in such a way that it is possible to zoom in and observe those details, which would be negligible to the naked eye in a real visit. The results can be disseminated through online virtual museum displays, offering a detailed interactive visualization. This line of research is extremely interesting, not only for art curators and scholars but also for the general public. Digital photographic capture of pictorial artworks with gigapixel resolution (around 1000 megapixels or greater) is a novel technique that is beginning to be used by some important international museums as a means of documentation, analysis, and dissemination of their masterpieces.
0 kommentar(er)
