![]() ![]() Identification of test points in the original test plan, and from preliminary visual examination of the Shroud itself, in some cases failed to determine an overlap of different image components (ie. The registered acetates were then rephotographed and a map for each experiment's data points, ventral and dorsal, was the result. Were marked and numbered in exact position on the appropriate overlay. Acetate overlay sheets for each experiment were pin-registered over the prints and all test-points ![]() The documentary slides were individually projected onto corresponding ventral or dorsal black and white 11" X 14" prints of the Shroud and support table, and landmark image components were visually superimposed and carefully registered. Master black and white 4" X 5" negatives that included the visible map coordinate numbers on the support table frame were made without the magnets in place to provide the photographs upon which the maps were created. Photographs were made separately for ventral and dorsal image areas of the Shroud to maximize final image size and resolution. Audio tapes were then used to record detailed photographic information including test-point locations, descriptions and additional identifying data. PHOTO-DOCUMENTATIONĪt the completion of each phase, 35mm color slides were made that included close-ups for positive magnet identification and overall views of the magnetic markers that also showed visible image components and map coordinate numbers on the support table frame for data-point location accuracy. Each final map is a composite made from all photographs taken to completely document that experiment. Magnets in place at the end of any given test period were documented and removed before the next test in that area began. Tests were organized on a rotating basis during the 120 hours allowed for the examination and several test periods were normally required to complete each experiment. Additional X-Y number and letter coordinates were fixed to the support table peripheral frame for further visual reference.ĭue to time constraints, several experiments proceeded simultaneously on different parts of the cloth. In some cases, magnets were physically labeled with these numbers for ease in later identification, but in all cases, researchers used these numbers for reference in their test notes. Certain important examination points were preselected and numbered as part of the project's original test plan (1). This also allowed researchers to accurately indicate actual test point areas by placing 0.25 inch diameter magnets at the exact spot where data was taken. The non-destructive examination of the Shroud of Turin required mounting the cloth, with magnets, on a specially-designed stainless steel support table. Photographic maps were then produced to show the type and location of the test-points for each particular experiment. Magnets were placed on the Shroud corresponding to each data-point and photography was used to record them for four of the experiments that sampled various areas of the cloth. Since data-sampling site positions were important for final analysis, a system was needed to accurately mark and document the numerous test-points for each experiment. Marks and non-image background areas for control purposes. Was collected from all image components on the Shroud by each experiment performed, and included sampling from body imaqe areas, apparent blood and serum stains, water stains, light and heavy scorch The purpose of the testing was to gather data that could determine the image formation process and explain the nature and physical properties of the image on the Shroud. The Shroud of Turin Research Project, Inc., was given five days and nights to perform non-destructive analysis on the controversial, image-bearing linen cloth. ![]() ![]() This paper reviews the marking system and the techniques used to produce the documentary photographs, lists the type and description of each test-point and describes the production of the final test-point maps, which are included to permit location of the exact data-points upon which project results are based. This prevented damage to the cloth and allowed for photographic documentation at the completion of each experiment. Reprinted from IEEE 1982 Proceedings of the International Conference on Cybernetics and Society, October 1982ĭuring the October 1978 scientific examination of the Shroud of Turin, researchers used a system of magnets to mark and identify the specific test-point locations of a variety of data-gathering experiments performed on the Shroud. ![]()
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