4. In the Bag-of-features algorithm (Video Google) two feature detectors were used: Shape Adapted and Maximally Stable Extremal Regions. (a) What was the reason for this choice and what is each one detecting? (b) What do you think will be the outcome of applying the algorithm on two images which have the same features but appear at different locations in the images, and why? Can we improve on this, and if so, how?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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In the context of computer vision

4. In the Bag-of-features algorithm (Video Google) two feature detectors were
used: Shape Adapted and Maximally Stable Extremal Regions.
(a) What was the reason for this choice and what is each one detecting?
(b) What do you think will be the outcome of applying the algorithm on two
images which have the same features but appear at different locations in the
images, and why? Can we improve on this, and if so, how?
Transcribed Image Text:4. In the Bag-of-features algorithm (Video Google) two feature detectors were used: Shape Adapted and Maximally Stable Extremal Regions. (a) What was the reason for this choice and what is each one detecting? (b) What do you think will be the outcome of applying the algorithm on two images which have the same features but appear at different locations in the images, and why? Can we improve on this, and if so, how?
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