Wavelet transform based on digital speckle correlation method : principle and algorithm
Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 402-405 |
| Journal / Publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4537 |
| Publication status | Published - 2001 |
| Externally published | Yes |
Conference
| Title | 3th Conference on Experimental Mechanics |
|---|---|
| Place | China |
| City | Beijing |
| Period | 15 - 17 October 2001 |
Link(s)
Abstract
A new digital speckle correlation method, the Wavelet Transform based DSCM (WTDSCM) is presented. By this method, the two images of an object before and after loading can be expanded into two series of sub-images according to their frequency band respectively by wavelet transform. Choosing the suitable sub-images pairs mainly contributed by signal speckles, and then inducing the DSCM to calculate the deformation of the object, the probability of mismatch caused by noise could be reduced and the precision of DSCM can be improved. The experimental calibration results indicate that the precision of the WTDSCM is higher than normal DSCM.
Research Area(s)
- Deformation measurement, Digital speckle correlation method (DSCM), Wavelet transform
Citation Format(s)
Wavelet transform based on digital speckle correlation method: principle and algorithm. / Miao, Hong; Ge, Fei; Jiang, Zhenyu et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4537, 2001, p. 402-405.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4537, 2001, p. 402-405.
Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal
