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3. FAST / BRIEF/ ORB3.1 FAST Algorithm for Corner DetectionTheoryMany feature detectors are really good, but not fast enough.As a solution, FAST (Features from Accelerated Segment Test) algorithm was proposed by Edward Rosten and Tom Drummond in their

2. Harris Corner DetectionIn chapter Understanding Features, we saw corners are regions in the image with large variation in intensity in all the directions.One early attempt to find these corners was done by Chris Harris & Mike Stephens in their pa

1. Understanding FeaturesWhat are features?When we play jigsaw puzzles, we are looking for specific patterns or specific features which are unique, which can be easily tracked, which can be easily compared.What are these features?(The answer should be