Hyperspectral Application In Micro-Archaeology

Archaeology of ancient human activities in accordance with the physical legacy data, to study the ancient history of a human subject. After the addition of modern high-tech means, a wide range of modern archaeological methods, such as GIS, remote sensing technology, magnetic detection method, three-dimensional scanning and other new technologies. Among them, remote sensing of archaeological work in the use of remote sensing image acquisition and interpretation of the principles, combined with a number of archaeological, historical knowledge and the literature based on the. The human eye can only be observed in the visible part of the electromagnetic waves reflected energy, and remote sensing through the use of ultraviolet, visible, infrared, thermal infrared, microwave and other bands of hyperspectral remote sensing technology to detect surface and underground objects. With the spectral resolution increases, many of the characteristics of the human eye can not distinguish it became clear, jade and Cuba for the identification of the identification of Antiquities, hyper-spectral remote sensing spectral characteristics in their detailed played a big role.Antiquities article simulated archaeological experts point visual process, based on the February 2011.1 Nisshin Gems issued national standards for identification (GB/T16553-2011) study to the national standard in gloss and color as the entry point for the two factors With hyper-spectral techniques and color theory to quantify the jade eyes Judgement of identification of targets.The traditional identification methods, mainly from materials, technology, shape and ornamentation, oxidation state to judge. Existing scientific and technological means in materials science from the consideration of the main chemical components start, but technique, shape and texture, mainly rely on people to judge. General description of those who look at the bright, soft jade, we use gentle, very full head of natural language, in view of this, the article attempts to establish multi-directional reflectance spectroscopy experiments to study this phenomenon, in the visible range of 400nm-700nm, multi-angle reflections on the acquisition of energy, the direction of the selectivity of the sample reflection, try all directions with the wavelength of the spectral reflectance changes in the qualitative interpretation of the situation to jade jewelry jade surface roughness, or moist degrees.Chromaticity introduced the concept of combining spectroscopy to quantify the national standard in the color index. Gem of the materials of nature, while the spectral response is characteristic of the materials science, that is the essential attribute of jade, and jade color is an essential attribute of its apparent properties, for the difference between understanding and representation of different substances In this study, to explore the phenomenon of metamerism, the introduction of the color jade jewelry appraisal theory, from colorimetry and spectroscopy. two aspects of the phenomenon and nature to provide quantitative indicators for the identification of jade.Experimental results demonstrate that the surface of jade in the visible wavelength range 480nm-700nm is relatively uniform diffuse surface, and in the 400nm-460nm wavelength range is less, that the wavelength range of surface roughness on the response of jade relatively strong, and reduce this response as the wavelength increases. The new Jade (Antique Jade) in the 400nm-700nm have a strong specular reflection phenomenon; with colorimetry. for a particular jade, from the XYZ tristimulus values of color, and spectroscopy for a double definition, to avoid metamerism phenomenon, given the more rigorous identification standards.