How to arrange vector array

Hi,

I have a problem with this coding.

imgreference=imread('C:\Users\Acer\Documents\MATLAB\Flow\Flow1.jpg');

% Read frames

text='C:\Users\Acer\Documents\MATLAB\Flow\Flow';

fr = [];
tt = [];
mm = [];

for im=18:20;
     filname=strcat(text,int2str(im));
     filname=strcat(filname,'.jpg');
     img=imread(filname);

[fx,fy,ft,vAvg,uAvg,u,v]=HS(img,imgreference);
     U= u.^2;
     V=v.^2;
     velocity =sqrt(U+V);
     fr = [velocity; fr];
     b = reshape(fr,360,480,[]);         

       OpticalFlow = [u;v];
       tt = [OpticalFlow; tt];
       O = reshape(tt,360,480,[]);

       SpatiotemporalAverageOF = [uAvg;vAvg];
       mm = [SpatiotemporalAverageOF; mm];
       Oave = reshape(mm,360,480,[]);

end

Question;

How to arrange OpticalFlow= [u;v] so that it forms 360x480x3 instead of 360x480x6.

for b = reshape(fr,360,480,[]) i got 360x480x3.

I want both of these values are same to do further mathematical operations.

Thanks friend!

Answer 1

[Walter Roberson]

You cannot. If it is coming out as 360 x 480 x 6 then it has twice as much data as would be used for 360 x 480 x 3.

MATLAB does not have HS() in any toolbox, so I cannot analyze to see why u and v are coming out 360 x 240 x 6.

If you are using HS from http://www.mathworks.com/matlabcentral/fileexchange/22756-horn-schunck-optical-flow-method then that routine only returns two values, u and v, not the 7 that you show being returned.

[Nur]

Thanks for your answer. Yes, I used HS from that link and it returns value u and v. I want to use this value for next processing(Social Force Model). That why I called the u and v value from Horn-Schunck optical flow.From my review, optical flow equal to Optical Flow(u,v)..so I want to use both u and v value but don't know how to arrange them opticalflow=[u v],opticalflow=[u;v],opticalflow=[u,v] or etc so that the size of that vector 360x480x3. I got 360x480x6 because i do put opticalflow=[u;v].