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Sourav Bairagya

Last seen: 11 jours il y a |  Actif depuis 2019

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What and where is the grid size of YOLOv4 detector in Matlab?
Hi, In YOLOv4 object detector, the grid sizes depend on the detector input size. Hence, to change the grid size, you need to ch...

plus de 2 ans il y a | 0

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How to add batch normalization layers in between Con. layer and RELU layer in Googlenet.? Suggestions to improve accuracy..
To add new layers in layergraph object, first add the new layer using 'addLayer' function. Then, you can use 'connectLayers' fun...

presque 5 ans il y a | 0

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How to perform Faster RCNN on my own dataset in Matlab?
After you prepared ground truth from your dataset, load that ground truth data. Now, extract the training data from that ground ...

presque 5 ans il y a | 0

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Calculating the sum of each row in a matrix.
You can use 'sum' function to compute sum for each row and then can apply 'squueze' function to remove the singleton dimension (...

presque 5 ans il y a | 0

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trainNetwork error RESHAPE line 260
It seems that the error lies in using 'reshape' function in 'Crashworthiness_NN'. It may be possible that the number of elements...

presque 5 ans il y a | 0

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Using a trained Faster RCNN Object Detector, expected LABEL to be nonempty
It seems that the labelling is not done properly. It may be possible that some images are not labelled. So, it would be good t...

presque 5 ans il y a | 0

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how can one utilize a dropout layer in a neural network during prediction?
Usually dropout layers are used during training to avoid overfitting of the neural network. Currenly, 'dropoutLayer' of 'Deep le...

presque 5 ans il y a | 0

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Monitor Deep Learning Training Progress
You can leverage these links to get idea about how to train multiple deep learning networks and observe their training progresse...

presque 5 ans il y a | 0

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In the GAN example of the documentation, did we update D several times before updating G?
GANs can be trained in many fashions. Here, discriminator, D is updated once before updating generator, G. Hence, first, discrim...

presque 5 ans il y a | 0

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how can I do object detection with vgg16 by using rcnn??
You can extract the desired number of layers from the pretrained net and define your choice of network. Here is an small example...

presque 5 ans il y a | 0

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Create geometry from mesh surface mesh
You can leverage these links: https://www.mathworks.com/help/pde/ug/pde.pdemodel.geometryfrommesh.htmlsearchHighlight=geometryF...

presque 5 ans il y a | 0

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ADAS// Lane change
As the error suggests that it is possible that the block supports variable size signals but needs to be configured for them, you...

presque 5 ans il y a | 0

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File Doesn't contain valid data of type 'SignalLabelDefintion'
You can leverage this link to get more details on the import and export behaviour of the signal labeler: https://www.mathworks....

presque 5 ans il y a | 0

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Forward outputs from discriminator of GAN vary with the number of inputs.
It seems that the discriminator layer weights get chnaged during second time calling of "forward" function. Make sure that the d...

presque 5 ans il y a | 1

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How to make a simple gui for image processing?
You can leverage these links for creating apps using App Designer: https://www.mathworks.com/help/matlab/app-designer.html htt...

presque 5 ans il y a | 0

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What is the mean of "Error using builtin" when using trainNetwork?
It seems that data stored in the '.mat' file may have some error. Hence, it would be better to check the dimesnions of those dat...

presque 5 ans il y a | 0

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Accessing dlarray elements for further processing
You can follow this approach, A = randn(6,6); A = dlarray(A); A1 = A(1:3,:); A2 = A(4:6,:); Here, A is a matrix of 6X6 dime...

presque 5 ans il y a | 0

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trainning multiclass in rcnnObjectDetector
You can use 'Image Labeler' app to label your training data. For more information, you can leverage this links: https://www.mat...

presque 5 ans il y a | 0

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After creating YOLO v2 with resnet50, while training the network, getting error "Invalid training data. The output size ([7 7 16]) of the last layer does not match the response size ([1 1 3])."
From the error it seems that output of your network should have size [1 1 3], but it is having the size [7 7 16]. May be there i...

presque 5 ans il y a | 0

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How can I make a meshgrid of this image? I am trying to create a bathymetry with matrix.
You can do that following this way. Assume the image is I. [X,Y]=meshgrid(1:size(I,2), 1:size(I,1)); mesh(X,Y,I) %display mes...

presque 5 ans il y a | 0

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down sample nearest method
The command 'imresize(im,0.5,'nearest')' will first find out the query points i.e. it will map the output image cordinates to th...

presque 5 ans il y a | 0

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supervised learning to transform multi-dimensional data to 2D?
You can build your custom neural network to learn this mapping function from 14 dimensional data to 2 dimensional data. In this...

presque 5 ans il y a | 0

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How can I add gaussian noise to image that are of class double in the range [0, 255]?
The 'imnoise' function expects input pixel values of data type 'double' and 'single' to be in the range [0, 1]. It also accepts ...

presque 5 ans il y a | 0

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Shoud I preprocess the input data before using fitcsvm?
It is better to preprocess the input data before using 'fitcsvm'. There is option to standardise your input data by setting the...

presque 5 ans il y a | 0

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cnn for feature extraction
As you have your RGB images ready, then you can define your custom convolutional neural network using 'dlNetwork' object and tra...

presque 5 ans il y a | 0

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Regarding 3D-UNET for segmentation.
Dataset for training 3D U-Net contains 4-D voulmes of which each one represents a stack of 3D images. The first three dimensions...

presque 5 ans il y a | 0

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Regarding GAN and its loss objective
You can use 'mse' function from Deep Learning Toolbox which calculates half mean sqaured error between given two inputs. dlY = ...

presque 5 ans il y a | 0

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how to change the color output of segmentation?
For "imshowpair" function, inputs should be grayscale/ binary/ truecolor images and for "jaccard" function, inputs sholud be bin...

presque 5 ans il y a | 0

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Error using Semantic Segmentation Using Deep Learning
I have tried to replicate that same example (mentioned in the provided link) on MATLAB R2019b and it sucessfully ran. On MATLAB...

presque 5 ans il y a | 0

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image labeler_Label Pixels Image
You can use "object DetectorTrainingData" function to create table form the labelled ground truth objects which are returned fro...

presque 5 ans il y a | 0

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