Validation Method.

<p>Left: Reconstruction result in green and ground truth contour in red; Middle: Hausdorff Distance between result in green and ground truth in red; Right: Areas bounded by result and ground truth, i.e., <i>Re</i> and <i>Tr</i> used in Eqs (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0145570#pone.0145570.e035" target="_blank">4</a>) and (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0145570#pone.0145570.e036" target="_blank">5</a>).</p

Registration for three pairs, <i>C</i>_<i>sax</i> is in green, original <i>C</i>_{2<i>ch</i>,3<i>ch</i>,4<i>ch</i>} are in blue, registered <i>C</i>_{2<i>ch</i>,3<i>ch</i>,4<i>ch</i>} are in red.

<p>Registration for three pairs, <i>C</i>_<i>sax</i> is in green, original <i>C</i>_{2<i>ch</i>,3<i>ch</i>,4<i>ch</i>} are in blue, registered <i>C</i>_{2<i>ch</i>,3<i>ch</i>,4<i>ch</i>} are in red.</p

Long axis images and delineated contours.

<p>Long axis images and delineated contours.</p

Variational Surface Reconstruction Steps.

<p>Variational Surface Reconstruction Steps.</p

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<p>Left: {<i>C</i>_<i>LV</i> ∪ <i>C</i>_<i>LA</i> ∪ <i>C</i>_<i>AO</i>}. Right: <math><mrow><mo>{</mo><msubsup><mi>C</mi><mrow><mi>L</mi><mi>V</mi></mrow><mo>′</mo></msubsup><mo>∪</mo><msubsup><mi>C</mi><mrow><mi>L</mi><mi>A</mi></mrow><mo>′</mo></msubsup><mo>∪</mo><msubsup><mi>C</mi><mrow><mi>A</mi><mi>O</mi></mrow><mo>′</mo></msubsup><mo>}</mo></mrow></math>. Interpolation was conducted in each short axis group separately. Notice that the region in between groups is not interpolated.</p

Short axis images and delineated contours.

<p>Short axis images and delineated contours.</p

Reconstructed Surface Model of All Volunteers.

<p>Reconstructed Surface Model of All Volunteers.</p

Validation Method: projections of the reconstructed model onto the long axis imaging planes were validated against manually delineated contours.

<p>Validation Method: projections of the reconstructed model onto the long axis imaging planes were validated against manually delineated contours.</p

Point cloud from all contours.

<p>Point cloud from all contours.</p

Reconstructed Surface Model of Volunteer 1.

<p>Reconstructed Surface Model of Volunteer 1.</p