# micro-photogrammetry ## Course Proposal ### Overview In the wake of COVID-19, CBA has spun up a number of quick response projects to provide effective PPE and medical supplies using our tools at MIT and leveraging the larger fablab community. Fortunate to still have lab access, I have focused on characterizing and testing filter material with various microscopy techniques and building an Filtration Efficiency Testing Appartus ([FETA](https://gitlab.cba.mit.edu/camblackburn/filter_testing)) to measure the pressure drop and filter efficiency of MERV graded materials and common household items. I have been agregating my results into a database documented [here](https://camblackburn.pages.cba.mit.edu/filter_media/). Throughout this process, ### Background ### Results and Grading Background: - photogrammetry methods - stereo rectification and optical flow vs . . . . - existing software tools - digitalsurf.com/video-tutorials/3d-reconstruction-from-a-stereo-pair-of-sem-images/ - SEM specific adjustments