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Deep Learning for Computer Vision · Quiz 1 · 13 Jul 2025 · May 2025 term

Question 33: What is the dimensionality of the Bag-of-Words (BoW) fea…

Question 33

+1.5 marksNumerical answer

You have a visual codebook with 1500 visual words. From a test image, you extract 1200 SIFT descriptors, each of 128 dimensions. After assigning each descriptor to its nearest visual word, you compute the Bag-of-Words histogram by counting descriptor assignments.
Based on the above data, answer the given subquestions.

What is the dimensionality of the Bag-of-Words (BoW) feature vector for this
image?________________

Show answer

Correct answer: 1500

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Question 33 of 34 in the IIT Madras BS Deep Learning for Computer Vision (Deep Learning for Computer Vision) Quiz 1 paper sat on 13 Jul 2025, in the May 2025 term (IIT M DEGREE AN EXAM QDB2 13 July 2025). It carries 1.5 marks.

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