View-point dependent preprocessing: Removal tolerance and accuracy

Image generated with viewpoint dependent preprocessing Difference to preprocessing with 0% removal tolerance.
contrast enhanced by 75% (100%=black/white only)

MIP using a cell array and direction dependent preprocessing for 12 clusters of viewing directions. The tolerance threshold for noise compensation has been set to 0%. 31% of all cells removed.

The same data preprocessed with a tolerance threshold of 1%. No difference noticeable in the images. 81% of all cells removed.

The same data preprocessed with a tolerance threshold of 2%. Slight differences appear mainly in low-gradient areas containing less relevant information.. 93% of all cells removed.

	Image generated with viewpoint dependent preprocessing	Difference to preprocessing with 0% removal tolerance. contrast enhanced by 75% (100%=black/white only)
MIP using a cell array and direction dependent preprocessing for 12 clusters of viewing directions. The tolerance threshold for noise compensation has been set to 0%. 31% of all cells removed.
The same data preprocessed with a tolerance threshold of 1%. No difference noticeable in the images. 81% of all cells removed.
The same data preprocessed with a tolerance threshold of 2%. Slight differences appear mainly in low-gradient areas containing less relevant information.. 93% of all cells removed.