Title

Surface Roughness Effect On Laser Speckle Spectral Density

Abstract

This work presents an attempt to develop a new procedure to evaluate surface roughness through the utilization of the spectral densities of laser speckles by image processing techniques. Preliminary results indicated a trend in which the peak of the spectral density would shift towards a lower frequency for higher surface roughness. This trend has not, however, been conclusive in another experimental setting which attempted to magnify that trend. This inconsistency may have been attributed to the possibility that the results were defining a finer pitch roughness rather than coarser pitch roughness which the specimens were considered at. Further studies are then required on the specific state of the specimens by using other conventional techniques. The work, however, indicates a possible potential for this spectral density technique by laser speckle image processing to evaluate surface roughness conditions. © 1986 SPIE.

Publication Date

11-3-1986

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

645

Number of Pages

120-126

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.964497

Socpus ID

0022958928 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0022958928

This document is currently not available here.

Share

COinS