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Deep Learning for Computer Vision · End Term · May 2024 · AN

Deep Learning for Computer Vision · End Term · May 2024 AN

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0 / 34 published solutions

Question 249 MCQ · 2.0 marks

What is the role of the Gaussian blur in the Canny edge detection algorithm, and how does the choice of the standard deviation parameter affect the performance of edge detection? Which option do you think best describes the role of the Gaussian blur and its relationship with the standard deviation parameter in the Canny edge detection algorithm?
6406533045014.
The Gaussian blur helps to reduce noise in the image and smooth out pixel intensity variations.The standard deviation parameter controls the amount of blurring applied, with higher values resulting in more aggressive smoothing, which may lead to loss of edge detail.
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The Gaussian blur enhances edge contrast in the image and amplifies pixel intensity gradients. The standard deviation parameter determines the width of the blur kernel, with larger values resulting in sharper edges and finer details preserved.
6406533045016.
The Gaussian blur serves to highlight high-frequency components in the image and accentuate edge boundaries. The standard deviation parameter dictates the level of detail preserved, with smaller values preserving finer details but potentially amplifying noise.
6406533045017.
The Gaussian blur functions to dilate edge regions in the image and expand the edge boundaries.The standard deviation parameter controls the extent of dilation, with higher values resulting in broader edge regions but also increasing the risk of false edge detections.

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Question 250 MCQ · 2.0 marks

Consider the following orientation of edges s:
Source diagram or notation
Choose the correct matching:
6406533045019.Source diagram or notation
6406533045020.Source diagram or notation
6406533045021.Source diagram or notation
6406533045022.Source diagram or notation

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Question 251 MCQ · 2.0 marks

Match the following:
Source diagram or notation
6406533045023.
1→ iii, 2→ iv, 3 →i, 4 → ii
6406533045024.
1→ iii, 2→ i, 3 → ii, 4 → v
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1→ iii, 2→ iv, 3 →v, 4 → ii
6406533045026.
1→ iv, 2→ iii, 3 → i, 4→ ii

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Question 252 MCQ · 2.0 marks

Consider the following statements and choose the correct option: (i) Grad-CAM overcame the problems of previous works to work better in images with occlusion and multiple instances of objects. (ii) Grad-CAM ++ uses a weighted average of pixels to solve the problem of activation maps with lesser spatial footprint getting suppressed.
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Only statement (i) is True
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Only statement (ii) is True
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Both the statements are True
6406533045030.
None of the statements is True

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Question 253 MCQ · 2.0 marks

Which one of the following statements regarding hyperparameter tuning is **True?**
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Test set performance, with hyperparameters tuned on the validation set, would be a realistic measure of how the model will generalize to new data.
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Train set is the best choice for tuning hyperparameters
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Picking hyperparameters that perform the best on the validation set leads to overfitting
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Tuning hyperparameters on the test set is an acceptable approach to find the most powerful model for generalization performance

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Question 254 MCQ · 2.0 marks

Which of the following is the correct sequence of steps of the SIFT algorithm? 1. Using the Taylor series expansion of the scale-space function, localize the key points. 2. Estimate the orientation of keypoints using the local image gradients. 3. Find the edge points using the eigenvalues of the Hessian and reject these points. 4. Find a raw SIFT descriptor vector using the gradient orientations of the neighborhood around the key points. 5. Detect extreme points in scale space using an approximation of the Laplacian of Gaussian.
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5, 2, 1, 3, 4
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5, 1, 3, 2, 4
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1, 3, 2, 4, 5
6406533045038.
1, 5, 3, 2, 4

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Question 255 MCQ · 2.0 marks

Source diagram or notation
6406533045039.Source diagram or notation
6406533045040.Source diagram or notation
6406533045041.Source diagram or notation
6406533045042.Source diagram or notation

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Question 256 MCQ · 2.0 marks

Which one of the following distance measures is used to compare two images in dense registration through optical flow?
6406533045051.
Weighted squared difference
6406533045052.
Weighted absolute difference
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KL divergence
6406533045054.
Cosine similarity

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Question 257 MCQ · 2.0 marks

Which one of the following statements is **false?**
6406533045064.Source diagram or notation
6406533045065.Source diagram or notation
6406533045066.Source diagram or notation
6406533045067.Source diagram or notation

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Question 258 MCQ · 2.0 marks

What can we do with a generative model? Match the following (select one among the options provided below):
Source diagram or notation
6406533045073.
1→iii,2→i, 3→ii
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1→i,2→iii, 3→ii
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1→ii,2→iii, 3→i
6406533045076.
1→i,2→ii, 3→iii

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Question 259 MCQ · 2.0 marks

Source diagram or notation
6406533045082.
21.3%
6406533045083.
12.8%
6406533045084.
11.5%
6406533045085.
8.7%

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Question 260 NAT · 2.0 marks

Source diagram or notation

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Question 261 NAT · 2.0 marks

Source diagram or notation

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Question 262 NAT · 2.0 marks

Source diagram or notation

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Question 263 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 1 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 264 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 2 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 265 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 3 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 266 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 4 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 267 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 5 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 268 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 6 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 269 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 7 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 270 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 8 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 271 SHORT_TEXT · 1.0 marks

Consider a vanilla transformer network at time step ’t’ shown below:
Source diagram or notation
For each of the entities above, enter the appropriate Model component from the figure that corresponds to it: Based on the above data, answer the given subquestions.
Enter the answer for Model component 9 **NOTE:** Enter the exact answer without any space in the beginning or at the end.

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Question 272 NAT · 0.67 marks

Source diagram or notation
Based on the above data, answer the given subquestions.
Source diagram or notation

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Question 273 NAT · 0.67 marks

Source diagram or notation
Based on the above data, answer the given subquestions.
Source diagram or notation

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Question 274 NAT · 0.66 marks

Source diagram or notation
Based on the above data, answer the given subquestions.
Source diagram or notation

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Question 275 MSQ · 2.0 marks

Which one of the following statements is **true?**
6406533045043.
Attention mechanisms cannot be applied to the bidirectional RNN model
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An image captioning network cannot be trained end-to-end even though we are using 2 different modalities to train the network
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One of the key components in the vanilla transformer are the recurrent connections that help them to deal with variable input length.
6406533045046.
None of these

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Question 276 MSQ · 2.0 marks

Which of the following statements are **true?** (Select all possible correct options)
6406533045047.Source diagram or notation
6406533045048.Source diagram or notation
6406533045049.Source diagram or notation
6406533045050.Source diagram or notation

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Question 277 MSQ · 2.0 marks

In adversarial robustness literature, which of the following are white box attacks?
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Carlini and Wagner (C&W) attack
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Projected Gradient Descent (PGD)
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Random Input Transformation
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Zeroth-Order Optimization (ZOO)
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Opt-Attack

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Question 278 NAT · 1.0 marks

Consider a Faster R-CNN object detection framework, which is being trained with a minibatch size of 2. The RPN produces 512 proposals, out of which 5 and 8 of them are foreground proposals, corresponding to each image in the mini-batch. For a single mini-batch update, the bounding box regression loss will be computed ______________________ times.

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Question 279 MCQ · 1.0 marks

Match the following computer vision tasks to situations:
Source diagram or notation
6406533045086.
1→ iv, 2→ iii, 3→ ii, 4 → i
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1→ ii, 2→ iii, 3 → i, 4 →iv
6406533045088.
1→ iv, 2→ iii, 3→ i, 4 → ii
6406533045089.
1→ ii, 2→ iv, 3 → iii, 4→ i

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Question 280 MCQ · 1.0 marks

Which of the following tasks are the Vision Language tasks?
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Image retrieval from text
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Object detection from image and text
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Visual Question Answering
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All of these

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Question 281 MCQ · 1.0 marks

Generative Adversarial Networks (GANs) are widely used to generate new images. Many GAN- based architectures have been developed over the years to improve the quality of generation.Progressive GAN, a popular architecture among many others, uses a technique called progressive growing. Which one of the options below is the purpose for progressive growing?
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To grow the range of loss function
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To gradually train the generator by increasing the resolution of images being generated in iterations
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To iteratively train the generator to create 3D images from 2D ones
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To shrink the size of the generator model so generator become faster

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Question 282 MCQ · 1.0 marks

Which of the following is not a self-supervised learning method?
6406533045099.Source diagram or notation
6406533045100.Source diagram or notation
6406533045101.Source diagram or notation
6406533045102.Source diagram or notation
      **SPG** **Section Id :** 64065364139 **Section Number :** 11 **Section type :** Online **Mandatory or Optional :** Mandatory **Number of Questions :** 24 **Number of Questions to be attempted :** 24 **Section Marks :** 35 **Display Number Panel :** Yes **Section Negative Marks :** 0 **Group All Questions :** No **Enable Mark as Answered Mark for Review and** No **Clear Response :** **Maximum Instruction Time :** 0

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