GND-PCA-Based Statistical Modeling of Diaphragm Motion Extracted from 4D MRI

Table 2

Comparison of the number of coefficients required to construct diaphragm motion model.

Regular PCA		GND-PCA
PC	Coef.	Core tensor	Coef.
First PC	1	4 × 2 × 1	8
First two PCs	2	8 × 4 × 2	64
First three PCs	3	16 × 8 × 4	512