Help with program logic (Gesture recognition)?

Hello! I've written this code for gesture recognition, but the gestures are not classified correctly each time. How do I alter the program to display what the gesture is only if it is classified correctly 4 times consecutively?

clc;
clear all;
close all;

gestdatabase;

vid = videoinput('winvideo', 1, 'YUY2_640x480'); %specify the video adaptor
src = getselectedsource(vid);
vid.ReturnedColorspace = 'grayscale'; %define the color format to GRAYSCALE
vid.FramesPerTrigger = 5;
preview(vid); %preview the video object

while(1)
preview(vid); %preview the video object
gesture=getsnapshot(vid); %capture the image of interest

for i=1:30
    J{i}=corr2(gesture,gest1Cell{i});
    L{i}=corr2(gesture,gest2Cell{i});

end

greatestJ=cellfun(@(a) max(a(:)),J);
R = max(greatestJ(1,:));

greatestL=cellfun(@(b) max(b(:)),L);
S = max(greatestL(1,:));

H = [R,S];

G= max(H);

if ((G==R)&&(G>0.55))
    display('FORWARD');

elseif ((G==S)&&(G>0.55))
    display('BACKWARD');

else
    display('NO MOTION'); 
end

end

Thank you!

Answer 1

[Image Analyst]

That's a question on algorithm development, not a question of the logic or program flow or syntax. Go to section 21.4 on Gesture recognition algorithms for help on algorithms: http://iris.usc.edu/Vision-Notes/bibliography/contentspeople.html#Face%20Recognition,%20Detection,%20Tracking,%20Gesture%20Recognition,%20Fingerprints,%20Biometrics Obviously your little 20 line program where you simply correlate two images is not going to be robust enough to handle real world situations, so you should look to successful, proven algorithms that have been published.

[Pruthvi]

Oh no sir, I've used Structural Similarity Index and PCA as well, I just didn't know whether to mention those as I just wanted to know what logic to use to display the gestures only if they've been classified correctly over 4 times. The actual code is over 2 pages long.