Analyzing Laser Speckle Pattern Using the Discrete Cosine Transform
Laser speckle
Model-noise
Discrete Cosine Transform
Fourier Transform
Frequency Domain Analysis
The use of Cosine transform to analyze the model-noise pattern alteration with different vibration model applied on multimode fiber optics are studied. It's results compared with the Fourier transform to perform the same analysis using total frequency difference and the computation time, which almost coincide for the both transforms. A discussion for the results and recommendation are introduced.