MATLAB Answers

I have recorded a rgb video and extract g frames vector and calculate it's mean now I want to calculate beats per minute kindly help how can I calculate BPM

조회 수: 2(최근 30일)
Abdul Qadeer
Abdul Qadeer 2021년 6월 18일
답변: Bjorn Gustavsson 2021년 6월 18일
vid= VideoReader('output.avi');
numFrames = vid.NumberOfFrames;
for x = 1:n
vidFrame = read(vid,x);
G = vidFrame(330:680, 500:780,2);


Bjorn Gustavsson
Bjorn Gustavsson 2021년 6월 18일
In order to estimate frequencies you have to look at the time-variation of your signal, depending on the variability of this you might get away with a single Fourier-transform of your time-series, but if your signal has a varying frequency (heart-rate of a resting person that then starts running, or a melody being played on a piano for example) you might be better off looking at its stft using the spectrogram function. My advice is to have a look at the help and documentaion to spectrogram.


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by