Due to the required computational effort of 4D
ultrasound imaging, such systems depend on low complexity
techniques like nearest neighbor interpolation, which affects
volume quality. Moreover, more accurate techniques like
normalized convolution, backward trilinear interpolation, and
forward spherical and ellipsoidal Gaussian kernel, are avoided in
real-time imaging because of the tight reconstruction time. The
goal of this work is to utilize recent commercial graphics
hardware technology of graphics processing unit (GPU) to speed
up the reconstruction time while increasing the quality of
displayed volume.