Beam deflection experiment

The goal of this experiment is simply to understand how to handle Image Processing tools in Matlab. Therefore, I recorded a video from the CHMS lab of a bending experiment. The future goals is to evaluate materials composition of a beam using Image Processing toolbox.

Watch the following video:

Instead of trying to analyze the video, which I think it is also possible, I created a sequence of images using the following command on Ubuntu:

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ffmpeg -i beam_deflection.mov -r 1 -f image2 beam-%01d.jpg

I started analyzing one image in the matlab, then I created a loop to do with all recorded images. So, I created a matlab script based on the following steps:

1. Read image using the imread;
2. Convert to grayscale using the rgb2gray;
3. Crop the region of interest;
4. Binarized the image;
5. Excluded part of the structure because it was a noise for the following steps;
6. Find the coefficients of polynomial;
7. Plot and save the figure in the same folder.

The last step was to generate a .gif image. For this task I used:

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convert -delay 100 -loop *.png output.gif

Check the final results: