1 Version 4.0 Released Jan 2003
3 * Port to wxWindows 2.4
8 Version 3.5 Released May 2002
10 * New reconstruction technique: Interpolate divergent beams to
11 parallel beams for faster reconstructions.
13 * Multithreading for running length processes in background. Also
14 takes advantage of multiple-CPU's in SMP systems for speed improvements
15 with parallel processing.
17 * Region of interest can be specified for reconstruction zooming.
19 * Import PNG, PPM, and PGM images
21 * DICOM file import/export
23 * Clipboard for cutting and pasting images
25 * Can read and reconstruct SIEMENS AR.STAR DICOM raw data files
27 * Scattergram of T-Theta sampling. Useful for understanding divergent beam
30 * Startup-tips to help new users learn features.
32 * Ability to place detector at any arbitray position
34 * Histogram plotting of projection files
37 Version 3.0 New Features
39 * Greatly improved dialog boxes
41 * Online and print manuals with context-sensitive help!
43 * 3-d rotating views of image files
45 * Creation of arbitrary filter images
47 * Cubic interpolation for reconstructions
49 * All features of command line tools are now in graphical ctsim program!
51 * Complex-valued image files now supported, lots of image math
52 functions added including Fourier transformations
54 * Visual and statistical image comparision functions
56 * Plotting of row and column data of single and comparison images
58 * Histogram Plotting of Image files.
60 * Conversion of projections to polar images
62 * Improved animation graphics
64 * New Microsoft Windows compatible self-installer with explorer extensions
69 Version 2.5 of CTSim has been released!
71 New Features of CTSim version 2.5:
73 - Now compiles with Microsoft Visual C++.
75 - First Microsoft Windows graphical user interface
77 - Bug fixes and modest documentation and program improvements over version 2.0
81 New Features of CTSim version 2.0:
83 - Entire code-base cleaned up, re-written, and converted from C to C++.
85 - Graphical user interface now included! Animation of projection and
86 reconstruction processes. Displays projection and image files. Uses
87 platform-independent wxWindows library so can run on UNIX and
88 Microsoft Windows platforms.
90 - Integrated G2 library for graphical display from command line tools
93 - Added frequency-based filtering. Can provide significant speed-up
94 in reconstructions compared to convolution-based filtering.
96 - Added highly-optimized backprojection method (idiff3)
98 - New command-line tools added for image statistics and comparisons with
99 both text and graphical outputs.