Table 4.

Average displacement errors (mm) and standard deviation for DMP and Demons registrations for pelvic images

	Whole Patient		Prostate		Rectum		Bladder
Image Set	DMP	Demons	DMP	Demons	DMP	Demons	DMP	Demons
$P_1^{\mathit{\text{CT}}}$	$2.1\pm 0.7$	$10.3\pm 11.5$	$1.9\pm 0.5$	$3.2\pm 1.2$	$1.9\pm 0.5$	$2.2\pm 0.9$	$2.8\pm 1.5$	$3.7\pm 1.8$
$P_2^{\mathit{\text{CT}}}$	$1.9\pm 1.0$	$7.8\pm 8.3$	$1.2\pm 0.6$	$2.4\pm 1.3$	$2.0\pm 0.8$	$2.4\pm 1.0$	$4.6\pm 3.1$	$5.0\pm 3.4$
$P_1^{\mathit{\text{Noise}}}$	$2.1\pm 0.8$	$18.5\pm 18.1$	$1.7\pm 0.5$	$12.3\pm 10.5$	$1.8\pm 0.6$	$12.8\pm 11.2$	$3.1\pm 1.7$	$16.3\pm 13.9$
$P_2^{\mathit{\text{Nose}}}$	$1.8\pm 0.9$	$19.4\pm 20.7$	$1.0\pm 0.6$	$13.2\pm 11.7$	$2.4\pm 1.0$	$13.3\pm 12.0$	$5.0\pm 3.4$	$18.3\pm 14.5$