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title: SIFT
categories: session
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**Reading**
# Briefing
Introduce SIFT based on alternative textbook.
# Exercise
Implement a prototype able to track a simple object in a video scene.
You have full freedom to do this as you please, but bear in mind
that we only ask for a *prototype*. The goal is to learn constituent
techniques, not to make a full solution for production.
1. You can set up your own scene, recording your own video, with a
characteristic, brightly coloured object moving through the scene.
E.g. a bright, red ball rolling on the floor.
2. Start with the feature detector. Make sure that it works.
3. Can you use the feature detector to detect your particular object in
a still image?
4. Visualise the detected object, by drawing a frame around it in the image.
5. Introduce tracking only when you have a working prototype for still
images.
# Debrief