How to calculate Histogram of Gradients for image?

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Can we use depth sensors (e.g. kinect sensor) for surveillance?

In general, RGB cameras are using for surveillance purpose. With the advancements in sensor technology, cost effective depth sensor like Kinect are available in the market. Can we use them for...

31 December 2018 5,317 2 View

In cross subject test protocol for action recognition task, training and testing sets only considered. what about validation set?

In literature for action recognition task, cross subject test and cross view test are two major protocols for evaluating efficacy of the methods. In cross subject test protocol, half of the...

07 August 2018 10,028 0 View

What is the difference between the Feature Descriptor and Feature Vector in image processing?

Explanation of Feature Descriptor and Feature Vector with examples.

31 December 2017 5,329 1 View

Which software is good for converting jpg to eps for writing journal paper in latex?

Latex will prefer images in eps format. I have created images in jpg format. I want to convert images from jpg to eps.

10 November 2017 2,422 11 View

For (x, y, w, h) in faces: cv2.rectangle(image, (x, y), (x+w, y+h), (0,0, 255), 2) ; what would be the values of (x, y, w, h) if face is not detected?

Programming related (Python)

08 September 2016 3,674 0 View

How to view HoG descriptor of an image?

Matlab code for viewing HoG descriptor.

06 July 2016 806 2 View

What is difference between Motion History Image and Motion Energy Image?

MHI and MEI differences and Matlab code for MHI land MEI.

06 July 2016 7,417 3 View

What is symmetrical moving avg filter?

Explanation and Matlab code for symmetrical moving Avg filter

06 July 2016 4,580 0 View

What is the use of 2D Gaussian smoothing filter?

2D Gaussian smoothing filter applications

06 July 2016 9,146 1 View

What is meaning of high frequency and low frequency in image processing?

high frequency and low frequency definitions with explanations

06 July 2016 8,074 2 View

What precautions should be taken while handling S. aureus enterotoxin Type B in the lab?

I would like to understand potential safety concerns while handling SEB in the lab. Especially while working in animal house facility. Would like to know precautions for handling. Sigma MSDS...

07 August 2024 6,034 3 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

Help on understanding the implementation of Mori Tanaka method on MATLAB?

I am new to Micromechanics and having similar problem with understanding the implementation of the formula's. I would appreciate if anyone can guide me on how to go about getting a scalar value...

30 July 2024 969 0 View

Simulation of metal drawing by Abaqus with UMAT?

Hello, colleagues. Recently, I have been working on a metal processing simulation with my UMAT in Abaqus. I have outlined the corresponding simulation, but I keep encountering issues that cause...

30 July 2024 7,062 1 View

Do some Staphylococcus aureus strains have in vitro antimycobacterial activity ?

Some Staphylococcus aureus strains Inhibit the growth of Mycobacteria in Mueller Hinton Agar medium containing 10% OADC. Do some Staphylococcus aureus strains have in vitro antimycobacterial activity?

29 July 2024 10,023 2 View

Please, what is the memory consumption of the Matlab function quad tree decomposition procedure [S = qtdecomp(I)] with respect to the input set I?

27 July 2024 5,455 2 View

All math can be explained by iterator of code?

all math can be traversed by code? all math can be translate to code?

26 July 2024 9,530 0 View

Seeking MATLAB Code for Differential Evolution in Multilevel Thresholding Image Segmentation ?

Hello, I am a research scholar currently working on a project involving image segmentation, and I am interested in using differential evolution for this purpose . I would greatly appreciate it if...

25 July 2024 9,926 1 View

Does post-translational protein modification cause devisions on observed pI verses calculated pI?

In running two-dimensional gel electrophoresis on bacterial protein, some spots that appear to match a protein sequence have a significantly more acidic isoelectric point than the calculated pI....

24 July 2024 8,076 3 View

Swerling Characteristic functions?

Hello!!! I want to implement the Swerling characteristics functions (CF) directly in MATLAB without using its Fourier integral pairs...the Swerling CFs are actually Laplace Transform of the signal...

23 July 2024 4,925 1 View

Alireza Dehghani

Do you want to implement HoG extraction from scratch or you want to use it in your application? What language are you going to use?

There are optimized implementation of HoG in Matlab and OpenCV.

Mohamed Atibi

You can use this link.

http://www.mathworks.com/help/vision/ref/extracthogfeatures.html?requestedDomain=www.mathworks.com