Features Matching II & Homographies

This project implements feature generation and matching using OpenCV library. We observe two classes of object types: The first is solid cube shaped object such as a cereal box that is ideal for homography transforms and post processes. The second is deformable object such as a bag of chips that can be physically distored between two images and homographies and post processing may fail on them. In this project we observe the usage of optical flow on the 2nd category to check viability of estimating such distortions....

EigenFaces

CV Project 3: Eigenfaces Used std::vector instead of std::list in the implementation of findFaces. I tried importing to use C++ STL sort function but the program didnt accept the linkage. Hence, I had to write my own quick sort algorithm for this purpose. What worked? The interesting & the neutral as well as group folders worked really well. What didnt work? My program experienced really bad genralization errors. I tried number of test files of various scales with different min/max thresholds but the results were pretty disappointing. However, since the insample result...

Panorama

CV Project 2: Panorama Mosiac Stitching 1. For "make your own 360 panorama" took 17 translated imgs of WashU's Brookings building with Iphone SE using hand (no tripod). I converted the imgs to low (640x480) pixel using imageMagick's convert tool. 2. Initially found (in mm) = 4.2mm using image's exif data. Then found f (in pixels) = 640*4.2mm/4.8mm = 560 pixels where 4.8mm was the Iphone SE's camera sensor width and 640 was the width of each down-sampled image ...

Features Detection & Matching

CV Project 1: Feature Detection and Matching Detector Design: My feature descriptor called manilsFeatureDescriptor is an extension of simple5x5featureDescriptor. Both manilsFeatureDescriptor and simple5x5featureDescriptor take gray-scaled input image(input) and reference to the feature set (output) as parameters. Both feature descriptor functions take a computed local maxima point using Harris corner detector algorithm and add some 'characteristics' to the detected feature points....