Research Article

A Sparse Volume Reconstruction Method for Fetal Brain MRI Using Adaptive Kernel Regression

Table 6

The RMSE and MSSIM values and running time comparison of fetal brain reconstruction with different steering kernel sizes ranging from to , respectively.

Steering kernel size

RMSE91.0779.55479.00581.502
MSSIM0.77910.79730.80540.7781
TIME (s)

Note: TIME denotes the time caused only by running the adaptive kernel regression method. : is the time to calculate the gradient information. is the time to calculate the covariance smoothing matrix. is the time to calculate the steering kernel regression function. is the sum of , , and .