Title :
A holographic ruler for simple measurements in opaque reflection holograms (dental study model storage)
Author :
Koops, Richard K. ; Althof, Vincent G M ; Ten Bosch, Jaap J.
Author_Institution :
Groningen Univ., Netherlands
Abstract :
Quantitative measurement of distances in holographic images can be accomplished with calipers, at least when the holograms are transparent. A description is given of a holographic rule that enables such measurements to be made in images obtained from reflection holograms with black backings. A transparent-on-black coordinate system with millimeter-divisions is holographed on a Agfa 8E75 HB plate, the plate-coordinate-system distance being 70 mm. The developed and bleached plate gives an orange image upon reconstruction, while the image of the study model is green. The accuracy of distance measurements with this holographic ruler is 1 mm.<>
Keywords :
biomedical measurement; distance measurement; holographic storage; holography; Agfa 8E75 HB plate; accuracy; black backings; dental study model; developed bleached plate; green image; holographic images; holographic ruler; holographic storage; millimeter-divisions; opaque reflection holograms; orange image; plate-coordinate-system distance; reconstruction; simple measurements; transparent-on-black coordinate system;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95215
