interpolation between sequnce of images

Question

tala 2016-11-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/314146-interpolation-between-sequnce-of-images

评论： KSSV 2016-11-28

hello i am a beginner in matlab. i have 10 frames of echocardiography so each frame is in a time index.(t1,t3,t5...) i want to interpolate between these images in time domain to make 10 frame to 20 frames to increase the frame rate. could anyone help me. its possible to use interp1 for each pixel, how cani do it? thanks

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Answer 1

KSSV 2016-11-28

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https://ww2.mathworks.cn/matlabcentral/answers/314146-interpolation-between-sequnce-of-images#answer_244950

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m = 100; n = 100 ;
I = rand(m,n,10) ;  % your frames
fr = 1:2:20 ;    % frame time
fri = 2:2:20 ;   % frame time to be inteprolated 
Ii = zeros(m,n,length(fri)) ;   % initiliaze the interpolated frames 
%%inteproaltion 
for i =1:m
    for j = 1:n
        I_ij = squeeze(I(i,j,:)) ;
        Ii_ij = interp1(fr,I_ij,fri,'spline') ;        
        Ii(i,j,:) = reshape(Ii_ij,1,1,length(fri)) ;
    end
end