data/announcement.txt

   1         Announcing the Chapel Hill Volume Rendering Test Data Set,
   2                            Volume II
   3
   4                 SoftLab Software Systems Laboratory
   5                 University of North Carolina
   6                 Department of Computer Science
   7                 Chapel Hill, NC  27599-3175
   8
   9 The Chapel Hill Volume Rendering Test Data Set, Volume II is a collection
  10 of the following files:
  11
  12 CT Cadaver Head data - A 113-slice MRI data set of a CT study of
  13 a cadaver head.  Slices are stored consecutively as a 256 x 256 array
  14 with dimensions of z-113 y-256 x-256 in z-y-x order.  Format is 16-bit
  15 integers -- two consecutive bytes make up one binary integer.  14,811,136
  16 bytes total file size.  Data taken on the General Electric CT Scanner and
  17 provided courtesy of North Carolina Memorial Hospital.
  18
  19 CT Cadaver Head data information article - An ascii file containing
  20 acknowledgements for the CT cadaver head data files.
  21
  22 MR Brain data -  A 109-slice MRI data set of a head with
  23 skull partially removed to reveal brain.  256 x 256 array.
  24 with dimensions of Z=109 Y=256 X=256 in z-y-x order.  Format is 16-bit
  25 integers -- two consecutive bytes make up one binary integer. 14,286,848
  26 bytes total file size.  Data taken on the Siemens Magnetom and provided
  27 courtesy of Siemens Medical Systems, Inc., Iselin, NJ.  Data edited
  28 (skull removed) by Dr. Julian Rosenman, North Carolina Memorial Hospital.
  29
  30 MR Brain data information article - An ascii file containing acknowledgements
  31 for the MR brain data files.
  32
  33 RNA data - A ASCII data set of an electron density map for
  34 Staphylococcus Aureus Ribonuclease with space of (x,y,z) =
  35 (0.94,0.94,0.94) and dimensions z-16, y-120, x-100 in z-y-x order.
  36 961,920 bytes total file size.  Data provided courtesy of Dr. Chris Hill,
  37 University of York.
  38
  39 RNA data information article - An ascii file containing acknowledgements
  40 for the RNA data files.
  41
  42 The data sets were written on a Digital Equipment Corporation (DEC) VAX
  43 computer.  Each file contains only pixels, stored in row major order
  44 with 2-byte integers per pixel.  To use the images on machines that
  45 have normal byte order (DECs use reverse byte order), you should swap
  46 alternate bytes, for example using the 'dd' command in UNIX.  A sample
  47 command that does this for the MRbrain data set is:
  48         % dd if=MRbrain of=MRbrain.new conv=swab
  49
  50 We do not object to your further distributing these files, but we
  51 request that full acknowledgement of the source of the data accompany
  52 such distribution.  If you are going to send a data set to someone,
  53 please also send the accompanying information file (*.info) and this
  54 file (Announcement).
  55
  56 The Computer Science Department, University of North Carolina only
  57 distributes these files by anonymous FTP.
  58
  59 We do not provide any software for displaying these data.
  60
  61 There is no information available about the data provided here other
  62 than that present in these files.  For example, missing information
  63 about the means of data collection cannot be provided.