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Questions tagged [detection]

Detection is a general term that describes the action of finding an object, event or state during a process.

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Detect a scratch on noise image with OpenCV

I am trying to get a small scratch from the noise image as shown. It is quite noticeable by eyes, but I would like to identify it using OpenCV Python. I tried to use image blurring and subtract it from the original image, and then threshold to get a…
Xinlong Wang
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Motion Detection of an 1D Array (neural network or other options?)

I am currently developing a project for the detection of different sounds. The software should analyze an incoming sound as a wave file and recognize certain tags. For some tags, I use neural networks, which works well too. Now, however, I have a…
user3161753
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Is it possible to detect pairs of connected pixels?

I'm using OpenCV via Python 3.7. I have a following image (please take note of some red pixels on white areas): I know x and y coordinates of every red pixel in the image. I want to find all red pixels pairs that're interconnected by single white…
SagRU
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How to find whether a process is running on Windows/Linux

I want my program to be able to detect whether OBS-Studio is currently running, and if it is, perform certain functionality in my program. The problem is I can't seem to find a solution that will work on both platforms. I've found things that use…
Frontear
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particles presentation in the particle filter

in the particle filter algorithm, particles should present as a dots or it can be represented as rectangle boxes? in the case of rectangle boxes, how I can determine the box size? if the object is far from the camera I want to show an object with a…
nil
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Object recognition in 3D images

I have a 3D video that I have broken down into single images in 7 different planes. I am wondering what tools can I use for object detection. I read that OpenCV might not be the right tool for that, what could I use instead? Regards Aleksej
aleksej stevanovic
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How do i make colour detection in turtle

I have a python turtle program which is displayed below. i want to be able to stop game when turtle touches black or touches line but i cant find any help online!!! import logging from datetime import datetime import time from turtle import * import…
Romulus Hill
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Text and Checked Rectangle Detection in Android

I have a document from which I need to detect which item is checked. It is greatly appreciated if we can extract the corresponding text. Below I am attaching the sample doc. Sample Doc to scan As per above sample I need to fetch the selected item…
Gourav Sharma
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Error: nonconformant arguments (op1 is 1x3, op2 is 1x2)

I am trying to do stone detection in Octave and this is error happening: error: imarithmetics: mx_el_eq: nonconformant arguments (op1 is 1x3, op2 is 1x2) error: called from; imarithmetics at line 35 column 13; imadd at line 43 column 12; stones…
Henry Pereira
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Does the function utils.device.checkHasPositionalTracking() still exist?

I'm getting an error on desktop chrome that utils.device.checkHasPositionalTracking() is "not a function". If it is obsolete, where can I find an updated list of utils.device methods for device detection? The official documentation seems to be…
Quetzal Dragon
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How to detect only people as an object using Tensorflow API

I am using Tensorflow API to detect object, however want to detect only people in boxes. I tried solution that asked before, for instance : :How to only detect humans in object detection API Tensorflow I dropped all other class except people but it…
Ahmet Furkan
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Can't get strtol() to detect overflow

This program uses a lexical scanner to classify tokens as symbol, string, decimal number, hex number,… When a "number" is detected, it is handed over to strtol() to convert it to the internal 32-bit binary value. However I can't get strtol() to…
ajlittoz
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Dlib whl for python 3.7

I know there's a whl file for python3.6. I don't want to downgrade to 3.6 or run in a virtual environment. Soo my question is why hasn't anyone made the whl file available rather than downloading 4.4gb of ms vc that i know i won't beer using after…
peanut.butter
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Community detection in R thanks to the igraph package

I have a data.frame with the correlations between OTUs and genes. These correlations will allow me to construct genomes. This data.frame has 1105854 rows. var1 var2 corr 1 OTU3978 UniRef90_A0A010P3Z8 0.846 2 OTU4011…
Paillou
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How to detect letter “H” from any angle

I'm struggling to detect a specific shape in openCV using python. The specific shape is the letter "H". I have considered multiple methods of doing this. Template matching and OCR will not work at any angle so I'm thinking of using canny edge…
Axccell
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