|
|||||
|
|
Histogram equalization of vibration fringes in holography |
|
| Authors: | Tushar Singh Chandra S Vikram |
| Institution: | a 26044 Georgia Tech Station, Georgia Institute of Technology, Atlanta, Georgia 30332, USA b Center for Applied Optics, The University of Alabama In Huntsville, Huntsville, Alabama 35899, USA |
| Abstract: | Common reconstructed fringes in holographic interferometry of vibration show rapidly diminishing intensity with extended amplitude limiting the measurement range. Using computer-simulated fringe patterns, linear histogram equalization is applied to redistribute the intensity for significant enhancement in the higher amplitude range. The cases of time-average and real-time single-frequency sinusoidal vibration are described. |
| Keywords: | Holographic vibration analysis histogram equalization digital image processing enhancement of higher order fringes |
| 本文献已被 ScienceDirect 等数据库收录！ | |