问沿二维图像切片插值

EN

%# load MRI dataset: 27 slices of 128x128 images
load mri
D = squeeze(D);       %# 27 2D-images

%# view slices as countours
contourslice(D,[],[],1:size(D,3))
colormap(map), view(3), axis tight

%# apply isosurface
figure
%#D = smooth3(D);
p = patch( isosurface(D,5) );
isonormals(D, p);
set(p, 'FaceColor',[1,.75,.65], 'EdgeColor','none')
daspect([1 1 .5]), view(3), axis tight, axis vis3d
camlight, lighting gouraud

%# add isocaps
patch(isocaps(D,5), 'FaceColor','interp', 'EdgeColor','none');
colormap(map)

vi = interp3(x, y, z, v, xi, yi, zi);

    function res = interp_along_slices( vol, scale )
    % Interpolation along the image slices

    % Get the size of the volume
      [r c p] = size(vol);

    % Pre-allocate the array:
    % the third dimension is scale times the p
      vol_interp = zeros(r,c,scale*p);

    % interpolate along the image slices 
      for inr = 1:r;
          for jnr = 1:c;
              xi = vol(inr,jnr,:);
              vol_interp(inr,jnr,:) = interp(xi, scale); 
          end;
      end;

      res = vol_interp;

    end