I am an Engineer in the Engineering Development Group at Mathworks, Hyderabad.

My area of interest are signal processing, machine learning, computer vision and deep learning.

DISCLAIMER: Any advice here are my own and no way reflect that of the Mathworks.

Answered

plot and fit surface

Hi The syntax and code which you have used is correct. The above code will fit a 2nd degree polynomial to the given data points...

plot and fit surface

Hi The syntax and code which you have used is correct. The above code will fit a 2nd degree polynomial to the given data points...

9 days ago | 0

Answered

Determine and plot the response of an accumulator for an input sequence 𝑥[𝑛] = 𝑢[𝑛] + 2𝑢[𝑛 − 1] − 3𝑢[𝑛 − 3]. Consider the system is at rest. use the function filter

Hi You can refer this example to plot the response using filter function.

Determine and plot the response of an accumulator for an input sequence 𝑥[𝑛] = 𝑢[𝑛] + 2𝑢[𝑛 − 1] − 3𝑢[𝑛 − 3]. Consider the system is at rest. use the function filter

Hi You can refer this example to plot the response using filter function.

9 days ago | 0

Answered

How to plot frequency response at discrete time?

Hi You can use freqz function to plot frequency response at discrete time. You can refer this example to plot the response of y...

How to plot frequency response at discrete time?

Hi You can use freqz function to plot frequency response at discrete time. You can refer this example to plot the response of y...

9 days ago | 0

Answered

Check for incorrect argument data type or missing argument in call to function 'diff'.

Hi It seems you are finding derivative of a function of x. If you don't have the value of x, then you can go by symbolic approa...

Check for incorrect argument data type or missing argument in call to function 'diff'.

Hi It seems you are finding derivative of a function of x. If you don't have the value of x, then you can go by symbolic approa...

10 days ago | 0

Answered

How to develop a CNN classification with meta, train and test data

Hi You can use pretrained network already exist in DL toolbox and finetune the model on your data. You can refer this documenta...

How to develop a CNN classification with meta, train and test data

Hi You can use pretrained network already exist in DL toolbox and finetune the model on your data. You can refer this documenta...

10 days ago | 0

Answered

Bandpass filter of set of Data

Hi You can use 'bandpass' function to apply a bandpass filter to your data. For more information you can refer its documentatio...

Bandpass filter of set of Data

Hi You can use 'bandpass' function to apply a bandpass filter to your data. For more information you can refer its documentatio...

10 days ago | 0

Answered

Apply to Softmax row

Hi It seems you want to perform the softmax function as per your data/feature dimension. In this case you can create a custom l...

Apply to Softmax row

Hi It seems you want to perform the softmax function as per your data/feature dimension. In this case you can create a custom l...

13 days ago | 1

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Answered

Classification Algorithm Enquiry.

Hi You can look at this documentation and also check this example of the documentation of multiclass SVM. Hope it will help!

Classification Algorithm Enquiry.

Hi You can look at this documentation and also check this example of the documentation of multiclass SVM. Hope it will help!

13 days ago | 0

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Answered

How to classify images depending on the shape of each image's object ?

Hi There is already an existing answer similar to this problem. You can refer this link for that.

How to classify images depending on the shape of each image's object ?

Hi There is already an existing answer similar to this problem. You can refer this link for that.

2 months ago | 1

Answered

Image segmentation for area

Hi You can 1st segment the plants from the image. To do this, green part is easily segmented by applying the suitable threshold...

Image segmentation for area

Hi You can 1st segment the plants from the image. To do this, green part is easily segmented by applying the suitable threshold...

2 months ago | 0

Answered

Does black region of the rotated image affect the CNN classification accuracy?

Hi Yeah it will affect slightly. This is an augmentation technique, mostly it will improve the network accuracy. Yeah network...

Does black region of the rotated image affect the CNN classification accuracy?

Hi Yeah it will affect slightly. This is an augmentation technique, mostly it will improve the network accuracy. Yeah network...

2 months ago | 2

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Answered

Cropping multiple Images and save them in a folder

Hi By looking at your code, it seems the variable 'images' is not defined. You are creating a 'theFiles' variable, which contai...

Cropping multiple Images and save them in a folder

Hi By looking at your code, it seems the variable 'images' is not defined. You are creating a 'theFiles' variable, which contai...

2 months ago | 1

Answered

Specify Output Class For GAN Image Generator

Hi You can possibly try with conditional GAN to generate images of a particular class. For more information, you can refer thi...

Specify Output Class For GAN Image Generator

Hi You can possibly try with conditional GAN to generate images of a particular class. For more information, you can refer thi...

2 months ago | 0

Answered

Express vector of linear combinations as matrix product

Hi You can use diff function to express the differentials. For example, in your case syms x(t) y(t) a=5; b=6; c=7; d=8; e...

Express vector of linear combinations as matrix product

Hi You can use diff function to express the differentials. For example, in your case syms x(t) y(t) a=5; b=6; c=7; d=8; e...

2 months ago | 0

Answered

How to detect 2D objects in LiDAR data

Hi You can follow this documentation of lidar labeler which explain the labeling process. For detection, you can use the pointP...

How to detect 2D objects in LiDAR data

Hi You can follow this documentation of lidar labeler which explain the labeling process. For detection, you can use the pointP...

2 months ago | 1

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Answered

I have a following code and would also like to store all outputs that relate to "m". I was able to store all outputs of "i" but I'm struggling with storing those of every "m" value. Please help

Hi You can store the information correspondig to each m value into a cell array. For example clc; clear; ValTraded = {}; ...

I have a following code and would also like to store all outputs that relate to "m". I was able to store all outputs of "i" but I'm struggling with storing those of every "m" value. Please help

Hi You can store the information correspondig to each m value into a cell array. For example clc; clear; ValTraded = {}; ...

2 months ago | 0

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Answered

How can I plot the Wavelet representation of a signal?

Hi You can refer this example of wavelet transform and spectrogram plot. Load the audio signal and follow this example. Hope it...

How can I plot the Wavelet representation of a signal?

Hi You can refer this example of wavelet transform and spectrogram plot. Load the audio signal and follow this example. Hope it...

2 months ago | 0

Answered

How do you do multi-class classification with a CNN network?

Hi As per your problem, I am assuming you are having multiple categorical objects in a single image. So the problem is no longe...

How do you do multi-class classification with a CNN network?

Hi As per your problem, I am assuming you are having multiple categorical objects in a single image. So the problem is no longe...

2 months ago | 1

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Answered

Convolutional encoder decoder for image classification

Hi You can refer to the existing MATLAB examples of image classification. You can refer the below links for this: Link1 Link2...

Convolutional encoder decoder for image classification

Hi You can refer to the existing MATLAB examples of image classification. You can refer the below links for this: Link1 Link2...

2 months ago | 0

Answered

Unrecognized function or variable 'functionhelperPlotScalogram3d'.

Hi The function helperPlotScalogram3d is a helper function shipped with Wavelet Transform example. You can find this function h...

Unrecognized function or variable 'functionhelperPlotScalogram3d'.

Hi The function helperPlotScalogram3d is a helper function shipped with Wavelet Transform example. You can find this function h...

2 months ago | 0

Answered

Cellarray in a dlarray

Hi The dlarray is supported for full arrays of data type double, single, or logical, or for full gpuArrays. Use cell2mat functi...

Cellarray in a dlarray

Hi The dlarray is supported for full arrays of data type double, single, or logical, or for full gpuArrays. Use cell2mat functi...

2 months ago | 0

Answered

Create model and estimate parameter

Hi It seems, theta is unknown here. You can vary theta and calculate F at different value of theta. For example, vary theta as ...

Create model and estimate parameter

Hi It seems, theta is unknown here. You can vary theta and calculate F at different value of theta. For example, vary theta as ...

2 months ago | 0

Answered

Using SVD for Dimensionality Reduction

Hi The first part is already answered here. For 2nd part, you can use the function pca to directly calculate the input with p...

Using SVD for Dimensionality Reduction

Hi The first part is already answered here. For 2nd part, you can use the function pca to directly calculate the input with p...

2 months ago | 1

Answered

implementation of mini-batch stochastic gradient descent

Hi You mentioned that you are implementing a classification network. In your code, you are using square of L2 norm to calculat...

implementation of mini-batch stochastic gradient descent

Hi You mentioned that you are implementing a classification network. In your code, you are using square of L2 norm to calculat...

2 months ago | 0

Answered

Determining the number of principal components

Hi The function svd returns the singular values in descending order, so you can consider first N values. Regarding the conside...

Determining the number of principal components

Hi The function svd returns the singular values in descending order, so you can consider first N values. Regarding the conside...

2 months ago | 0

Answered

I can't use the function minibatchqueue. Maybe I don't know where to find the supporting function 'createBatchData'

Hi The function createBatchData supporting function is present in the example of YOLO v3 object detctor. You can find it here. ...

I can't use the function minibatchqueue. Maybe I don't know where to find the supporting function 'createBatchData'

Hi The function createBatchData supporting function is present in the example of YOLO v3 object detctor. You can find it here. ...

2 months ago | 0

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Answered

Why bit plane 8 of my image is almost black?

Hi It seems, the image which you are displaying might be in double or single format. Convert it to uint8 format using uint8 com...

Why bit plane 8 of my image is almost black?

Hi It seems, the image which you are displaying might be in double or single format. Convert it to uint8 format using uint8 com...

2 months ago | 0

Answered

Can you please help me.

Hi To define a function, you can refer this documentation on function creation. To add all the vector elements, you can refer t...

Can you please help me.

Hi To define a function, you can refer this documentation on function creation. To add all the vector elements, you can refer t...

2 months ago | 0

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Answered

I am triying to solve values of g and h. I am getting " Empty sym: 0-by-1 ". How can I solve this ?

Hi Variable 'area' in your code is not defined. Either it is defined as a symbolic variable or some value needs to be assigned,...

I am triying to solve values of g and h. I am getting " Empty sym: 0-by-1 ". How can I solve this ?

Hi Variable 'area' in your code is not defined. Either it is defined as a symbolic variable or some value needs to be assigned,...

2 months ago | 0

Answered

Find the FPE of a VAR model

Hi You can refer to the 'varm'object functions here. Use 'estimate' method to fit a model to data and 'summarize' to display th...

Find the FPE of a VAR model

Hi You can refer to the 'varm'object functions here. Use 'estimate' method to fit a model to data and 'summarize' to display th...

2 months ago | 0