Object movement by estimating motion

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Nataliya 2015-7-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/229627-object-movement-by-estimating-motion

Hello everyone, I have estimated the motion of the frame using optical flow. I want to move the object using the estimated motion. Here is the code to move the object:

function imgComp = motionComp(imgI,u,v)
[m n C]    = size(imgI);
M          = size(imgI,1);
N          = size(imgI,2);
f          = imgI(1:M, 1:N, 1:C);
imgComp          = zeros(M, N, C);
[x y] = meshgrid(1:size(imgI,2),1:size(imgI,1));
X = min(max(x+round(u), 1), N);
Y = min(max(y+round(v), 1), N);
idx = (X(:)-1)*M + Y(:);
for coloridx = 1:C
    fc = f(:,:,coloridx);
    imgComp(:,:,coloridx) = reshape(fc(idx), M, N);
end
end