Download The Turin Shroud: Optical Research in the Past, Present, and by G. Fanti PDF
By G. Fanti
The purpose of this paintings is to summarise the $64000 contribution supplied by way of Optics within the stories of the TS (Turin Shroud) made in additional than a century of researches and checks. within the first part the very unusual features of the TS are offered and mentioned displaying that in past times the double physique snapshot inspired on it's not but reproducible. a few physique photograph formation hypotheses are awarded and they're going to be verified by means of additionally technique of optical potential successively mentioned. the second one and 3rd sections respectively current crucial optical researches performed long ago and within the found in connection with the Relic and the fourth part discusses a few attainable optical experiences that are supposed to be performed at the TS to unveil a few imprecise issues. it's also accounted for the conservation difficulties which are vitally important for the physique photograph inspired within the linen textile in a truly specific method.
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8 reports in a 3-D processing the gnomonic correction of these stains that instead of on the hair they probably were located on the cheeks. 4. LUMINANCE ANALYSIS OF IMAGES Luminance of images and their profiles can be used to compare and study the characteristics of photographs (Fanti and Moroni, 2002). In the case of the TS, this analysis was used to verify the compatibility of the TS Face digitized in a photograph with result of experiments. For example to determine the saturation Optical Research: The Present 51 degree, three different photographs of the TS were compared in terms of luminance levels with other two photographs relative to two experiments made to reproduce the TS body image.
F. Photography in Transmitted and Reflected Visible Light Barrie Schwortz documented photographically the whole activity done by the STURP, but his major contribution to the knowledge of the body image impressed on the TS consisted in the color photographs of the whole TS made both in reflected and transmitted light. 21 confirm this fact. 28 G. Fanti and R. 19. Whole TS in reflected light mounted on a rotating table used by STURP members for experiments (B. Schwortz). 20. Whole TS in transmitted light: the very superficial body image disappears but not the bloodstains and the waterstains; behind the TS it was sewed the Holland cloth that acted as a light diffuser (B.
There are different image processing methods but, in the hypothesis that the bands are perfectly vertical, a simple method consists in: Optical Research: The Present 53 a. 11a); b. evaluating the mean horizontal luminance profile of background (to reduce noise of white type); c. 11c); d. 11d) in which the background is more uniform and the body image is more evident. A similar image processing could have been made using an FT (Fourier Transform) filter but in this case some detail of interest could be eliminated together with the noise.