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Oriented FAST and Rotated BRIEF (ORB)
Latest   Machine Learning

Oriented FAST and Rotated BRIEF (ORB)

Last Updated on July 20, 2023 by Editorial Team

Author(s): Garima Nishad

Originally published on Towards AI.

So first let’s get a general idea about what it does & how it works. Then we’ll see both of these algorithms separately i.e. FAST and BRIEF. Fast and brief, are a feature detection in a vector creation algorithm respectively.

ORB, starts by finding special regions in an image called key points. Key points are the highly-distinctive locations in an image. For example, the edges of an image (where the brightness varies i.e where the pixel values change sharply ).

Key points(Green points) {Image Courtesy: OpenCV}First, it uses FAST to find key points, then applies a Harris corner measure to find top… Read the full blog for free on Medium.

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