par De Schryver, Fabien 
;Kuliralo, M.
Référence Proceedings of SPIE - The International Society for Optical Engineering, 525, page (154-159)
Publication Publié, 1985-09
;Kuliralo, M.Référence Proceedings of SPIE - The International Society for Optical Engineering, 525, page (154-159)
Publication Publié, 1985-09
Article révisé par les pairs
| Résumé : | This paper describes the possibility to determine the statistical caracteristics of a reflecting diffusor (tooth or dental restorations samples with different qualities of polish) by means of holographic correlation. A modified Vander Lugt method is used to measure the local roughness and the lateral mean dimensions of diffusing elements of the surface. This non-destructive method allows surfaces to be tested without preparation, and the quality of polish and finish of tooth or dental restoration to be checked in their actual aspect. A comparison with S.E.M. method is also presented. © 1985 SPIE. |
