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This website has been deprecated and exists as an archive only.

The TORTOISE website has been moved to https://tortoise.nibib.nih.gov.

For any information about TORTOISE generation V3.x.x, please refer to the new website.

NIHDMCS_V2.0.1

Only a few small changes to the registration code for this version. This does NOT affect your registration settings file(s) and/or data description files. You can continue to use your files as is.

The new source code is in: /raid3/STBBapps/NIH_DMC_source_v2.01. Please update your .aliases file to use this code.

The tag <nbins>48</nbins> in the registration settings file should have the value set to 48. The current default is 25. 48 was determined to be optimal for the eddy distortion correction.

Differences with this version:

  1. The eddy correction was changed slightly in v2 of the code. We have found that the older algorithm was more stable, and so we have reverted back to the old algorithm.
  2. The upsampling method from previous versions was set so that the method of choice (ie bicubic or linear) was applied only in 2D (in-plane), and the through-plane upsampling was always nearest neighbor. This has been updated so that all upsampling methods are applied in 3D.