Directly denoising-free for phase unwrapping algorithm of gray-scale electronic speckle interferometry fringe pattern
- Resource Type
- Conference
- Authors
- Wang, Jinjiang; Chen, Yang; Wu, Mingyun; Zhang, Fang; Liu, Wenyao
- Source
- 2012 5th International Congress on Image and Signal Processing Image and Signal Processing (CISP), 2012 5th International Congress on. :1237-1240 Oct, 2012
- Subject
- Signal Processing and Analysis
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Speckle
Noise
Interferometry
Least squares methods
Optimized production technology
Gray-scale
Partial differential equations
phase unwrapping
electronic speckle interferometry
- Language
We describe a satisfied method for phase unwrapping algorithm of gray-scale electronic speckle interferometry fringe patter without de-noising. Our method is based on optimal the energy of wrapped graph. We propose a discrete method construct a global graph with sub-graphs. Then, the min-energy is calculated using iterate algorithm with max-flow theory. The phase was unwrapped with min-energy condition. The proposed method works directly de-noising-free for phase unwrapping which is desired for phase shifting measurement technology.