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<p class="MsoNormal"><span style="mso-fareast-language:KO">Hi everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">I am trying to do linear interpolation on 3D image data.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">I have used mechanically scanned ultrasound images to construct 3D volume. Ultrasound probe is mounted on the linear stage. I am getting exact positions along the stage movement direction (Z axis).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">The 2D images are aligned along X and Y axes. I have saved stack of 2D images as vtkimagedata without the stage location information (Z values).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">The problem is that the 2D ultrasound images are not even distributed along Z axis. I want to do linear interpolation along the Z axis to construct structured 3D image data.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">Actually, I need to do 1 dimensional linear interpolation along the Z axis. I don’t need to do any interpolation along X and Y axes.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">I can do the 1D linear interpolation along the Z axis. The image resolution is about 800 x 780 x 250.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">If I do the linear interpolation of 800x780 pixels along the Z axis, it takes some time. I am doing a real time visualization.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">Is there any way to do linear interpolation fast using VTK?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:KO">Thank you for your help.
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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