1 Mar 22, 2003 Version 4.2.3
3 * Added Fourier reconstruction method
5 * Support gcc 3.2, wxWindows 2.4, and MacOS X
7 * Fix polar interpolation
9 Jun 26, 2002 Version 3.5.6
11 * Fix minor color PNG image importing bug
13 * Bug fix for building on Debian alpha platform
15 * Fix g++ compilation warnings
17 Jun 13, 2002 Version 3.5.5
19 * Fix printing of version number
23 * Updated Win32 compatibility
25 Jun 8, 2002 Version 3.5.4
27 * Print version number in log window with About command
29 * Fix problem with captions not showing on some windows. Reworked
30 creation of new windows.
32 * Disabled status bar on 3d views
34 * Fix bug in configure.ac that prevented using compiler
37 * Updated About splash screen
39 May 29, 2002 Version 3.5.3
40 * Added support for g++ 3.04 compiler
42 May 8, 2002 Version 3.5.2
43 * configure: improved CTN (DICOM) installation search
44 * src/ctsim.cpp: Fixed initial image size with import command
46 May 5, 2002 Version 3.5.1
50 * ctsim: Added tips to be displayed at startup and via the help menu.
51 * ctsim: Added center-detector concept. Allow for detector array
52 to be any arbitrary distance from center of scanner. As a result,
53 projection files are not incompatible with previous version of
55 * ctsim: Added threaded tasks and background manager for
56 background processing as well as taking advantage of multiple-CPU's
57 on SMP systems. (Microsoft Windows only)
58 * ctsim: Added plot t-theta sampling to projection file menu.
59 * ctsim: Added Reconstruction with Rebinning for faster
60 divergent beam reconstructions.
61 * ctsim: Added import and export of DICOM image files.
62 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
63 * ctsim: Added FFT/IFFT of columns of image files.
64 * ctsim: Added clipboard cut/copy/paste for image files.
65 * ctsim: Added region of interest to reconstructions.
66 * ctsim: Added Convert Rectangular Image to Projection files
67 * ctsim: Added "Verbose Logging", "Startup Tips", and
68 "Background processes" options to Preferences dialog.
69 * ctsim: Added plotting of projection file histograms.
70 * plotfile: Added scattergram plot functions
71 * ctsim: Added accelerator key for File-Properties
72 * ctsim: Improved wireframe 3-d display to remove hidden
74 * backprojectors.cpp: Added setting of axis extent and increment
76 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
77 projection data files.
81 * views.cpp: reduced calls to progress bar update, significant speedup
82 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
83 not being displayed on Unix platforms.
84 * views.cpp: Added out-of-memory checks to display for huge
85 image and projection files.
86 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
87 * imagefile.cpp: Fixed scaling factor in fftRows
88 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
90 * sgp.cpp: Fixed bug in drawCircle.
91 * distribution: fixed problem with documentation files not
92 being included with the distribution (Reported by Ian Kay).
93 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
94 * fixed ctsimtext shell when giving no parameters to function-name
95 * phm2if, phm2pj: Updated help messages for renamed phantoms
97 3.0.3 - Released 2/20/01
99 * ctsim: Fixed core dump on Linux with OpenGL
101 * ctsim: Fixed context-sensitive help on Linux
103 * ctsim: Fixed About box on Linux
105 3.0.2 - Released 2/20/01
107 * scanner.cpp: Fixed bug when number of detectors was even.
109 * ctsim: Improved error handling when trying to convert
110 divergent projections into polar form.
112 3.0.1 - Released 2/19/01
114 * ctsim: Fixed dialog box for reconstruction so that
115 rotation angle setting will stay fixed in-between use
118 * syserror: Fixed display bug for trace messages
120 * ctsim: MSVC optimization bug work-around, compiler
123 3.0.0 - Released 2/19/01
125 * ctsim: Massive update/fix to online help and print manual.
127 * ctsim: Added context-sensitive help to dialog boxes
129 * ctsim: Reformated all dialog boxes, much nicer now.
131 * ctsim: Improved accelerator key handling
133 * global: Added Hanning filter.
135 * global: Improved default parameters to that all defaults give
138 3.0.0beta1 - Released 2/11/01
140 * ctsim: Added most-recently-used files to File menu with
141 registry storage between executions.
143 * ctsim: Hides arcane features unless enabled by Preferences dialog
145 * ctsim: Added MDI interface for Windows version and made it default for Windows.
147 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
149 * ctsim: Added graphical About box
151 * ctsim: Escape key now removes cursor lines from image file view
153 * ctsim: Added Revert to ImageFile menu
155 * ctsim: Added accelerator (hotkeys) to frames
157 * ctsim: Online help added!
159 * backprojector: Added cubic interpolation
161 * ctsim: Added icons to Frames on X-Window and MS Windows versions
163 * ctsim: Fixed tick-label placement for plots on projection and
164 reconstruction dialogs.
166 * timer.h: Add use of _ftime when compiling on MSVC
168 * global: Projection files are not compatible with previous version
169 due to new scanner definitions.
171 * global: deleted concept of field-of-view and added
172 view ratio and scan ratio concepts.
174 * ctsim: Fixed crash on shutdown bug
176 * pjinfo: Fixed bug when doing --dump and not specifing --endview
178 * phm2pj: Fixed MPI bug with broadcasting of variables
180 * ctsimtext-lam: Changes for first version to compile under lam
183 3.0.0alpha5 - Released 1/12/00
185 * ctsim: Added EZPlotDialog, used by debugging plots in
188 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
189 bug in parsing command-line parameters.
191 * views.cpp: Fixed bug in copying of labels from images to
194 * syserror.cpp: fixed reporting for fatal errors
196 * projections.cpp: fixed MSVC failure with std:: namespace
198 * procsignal.cpp: fixed bug in equiangular reconstructions
199 for frequency/inverse-fourier filtering
201 3.0.0alpha4 - Released 1/09/01
203 * ctsim: Added reset to full-intensity scale menu item
205 * ctsim: Add conversion of projections to polar plot [Thanks to
206 Ian Kay for reference and math hints in polar bilinear scaling]
208 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
211 * ctsim: imagefile labels are now copied to plotfiles
213 * ctsim: Added more analyze menuitems
215 * ctsimtext: First version. All command-line tools are now accessed
216 through this master shell. Has both command-line and interactive
219 * ctsim: Fixed initialization of min/max bug for PlotFiles
221 * ezplot: Cleaned up y-tick label placement
223 * sgp: Added better support for projection/reconstruction animation
225 3.0.0alpha3 - Released 1/02/01
227 * ctsim: Added plotting of histograms
229 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
231 * ezplot.cpp: adjusted xtick label displays for better placement
233 3.0alpha2 - Released 1/02/01
235 * ctsim: All functions of command-line tools are now in graphical ctsim
237 * ctsim: added generation of filter images
239 * ctsim: Added 2-image math functions (mul, add, div, sub)
241 * ctsim: Added export of imagefiles to graphic file formats
243 * ctsim: Added support for scaling imagefiles in new sizes
245 * ctsim: Added ability to save standard phantom definitions as
246 text files suitable for reading.
248 * ctsim: Add labels for image transformations and display of labels
249 when performing properties of images.
251 * processsignal.cpp: Fixed "off by one" bug in
252 shuffleNaturalToFourierOrder when n is even. Moved functions to
255 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
256 image math functions to complex-valued math.
258 * phantom.cpp: Added ability to save phantom files as ASCII text.
260 3.0alpha1 - Released 12/29/00
262 * Added PlotFile class to system, used by if2 and ctsim for row
263 and column plots and comparison plots
265 * ctsim: Added image comparison statistics and image subtraction
267 * ctsim: Added plotting of rows & columns with y-axis scaling
269 * ctsim: Added row and column plot comparisons between two image
272 * ctsim: Added "Process" menu to image file display with math
273 functions. Added 2-dimensional inverse Fourier to math
274 functions. Added support for complex (real/imaginary) images.
276 * mathfuncs.cpp: Reworked statistics algorithm to share between
277 imagefile and plotfile classes.
279 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
280 nsamples > 2. Added generic mage math functions, moved from
281 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
284 * array2dfile.cpp: Added code to support complex (real/imaginary)
287 * if1: Updated to handle error conditions, such as sqrt of a
288 negative number. Converted to use new ImageFile math functions.
290 * if2: Updated to output plot files and use new ImageFile class
293 * if1: Updated to use new ImageFile class math functions
295 * ezplot: Reworked to better store colors/linestyles/symbols with
296 individual curves. Improved display of labels and ticks. Updated
297 to use POL class member variable. Updated to more C++ conventions.
299 * pol: converted to C++ class. Extracted HashTable to separate
302 * sgp: Added linestyle settings
305 First Microsoft Windows GUI version
306 Modifications for Microsoft Visual C++ compilation.
307 Improved pjinfo to output binary headers and view data, useful
308 when manually compiling phantoms that vary during projection
309 process. Thanks to Ian Kay for idea and code submission.
310 Improved sorting to find median in ImageFile::statistics
311 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
312 Changed reconstruction dialog to fix onto smaller screens
313 Fixed display of plotting in Projection views
314 Improved animation displays for Projections and Reconstructions
315 Changed code to explicitly use std:: namespace rather than
316 "namespace using std" statements
317 Fixed reconstruction scaling bug introduced in 2.0.6
318 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
321 Fixed minor compilation problem with procsignal.h
323 Fixed bug when simulating projections and Trace == CONSOLE
324 Fixed scaling bug when performing redundant rotations around object
327 Improved compilation on RedHat 7
328 Changed some of ANSI C header files to C++ header files
329 Removed README.RedHat7
332 Added documentation for --geometry setting
333 Added README.RedHat7 document
336 Fixed bug in generation of binary PGM files
337 Fixed MPI compilation bug in phm2pj.cpp
338 Inverted y-axis output for pj2if (bug alert from Ian Kay)
341 Additions to man pages (Ian Kay)
342 Fix problem with reading of ASCII phantom files (Ian Kay)
345 Fixed syntax error in fftw configuration
346 Slight modifications to support gcc v2.9.6
349 Version 2.0.0 released!
350 ctsim: Added Window menu to Main frame
351 ctsim: Disabled not support reconstruction method
352 Fixed obscure bug in sys_error
353 Fixed compilation in mingw environment not present
354 Fixed compilation in non-graphical environments
357 ctsim: Added animation of reconstruction
358 ctsim: Added saving of dialog parameters for Projection & Reconstruction
359 ctsim: Added progress dialog for rasterization of phantom
360 ctsim: used setpriority to set lower priority
361 ctsim: fixed pReconstruct not being deleted causing scaling problem
362 ctsim: fixed projection animation dialog buttons
365 ctsim: Added projection graph to animation of projection collection
366 ctsim: Added single stepping to projection collection animation
367 ctsim: improved File/Properties display for projection files
368 ctsim: Added progress dialog for reconstructions
369 ctsim: Added file labels for projection and reconstruction images
370 ctsim: Made File/Properties bring up modal dialogs
371 Added reconstruction for Equilinear and Equiangular geometries
372 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
373 Separated reconstruction into Reconstructor class
374 Fixed center of detector adjustment for even number of detectors
375 Added --enable-static to generate statically linked programs
378 ctsim: Added animation of projection collection processs
379 ctsim: Added Auto Scaling for image windows
380 ctsim: Change menus from "windowing" to "display scaling"
381 Added FieldOfView and FocalLength ratio parameters to projection collection
382 Added FocalLength & FieldOfView fields to projection data files
383 Added Projection collection for Equilinear and Equiangular geometries
384 Changed name of Rowland Phantom to correct name of Shepp-Logan
385 Fixed bug in backprojection selection
388 Added RCS Id strings to executable files
389 Added RPM Spec file for RPM package creation
390 Added loading of ASCII phanthom definitions from files
391 Fixed compilation for non-SGP architectures
392 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
393 Added Filter-Generation option to reconstruction to allow direct or
394 inverse_fourier construction of filters
395 Added median to statistics and to auto-windowing
398 Added line color support to SGP
402 Finished support for dmallocxx library
403 Fixed bug in SignalFilter::convertFilterMethodNameToID()
404 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
405 G2 windows and well as WXWindows.
406 ctsim program: "Create Phantom" now shows phantom object
407 Fixed row-plot bug in if-2
408 Reworked EZPlot's multiple plot operation
411 ctsim program: improved initial size and scroll area for image
413 ctsim program: added rasterization parameters, projections parameters,
414 and reconstruction parameters dialogs
415 Moved char[] static definition from header files to c++ files
416 Completely reorganized option processing in classes to improve
417 expandability and to assist ctsim graphical user interface.
420 ctsim program: Added dialog to set minimum/maximum display levels
421 Started ctsim.tex document file
424 Fixed compiler warnings at -Wall level
425 Began work on CTSim program to be graphical front-end of all functions
426 Moved current src/*.cpp to tools/*.cpp
427 Made CTSim graphical front-end's home to be src/
430 Added highly optimized backprojection method idiff3
431 Moved comparative stats to if-2 program from ifinfo
432 Fixed image display in if2img using G2 library
433 Added column-plot and row-plot options to if-2
434 Added autoselection of analytic/calculated spatial responses to SignalFilter
435 Added frequency-based preinterpolation to SignalFilter and idiff3
436 backprojection method. Currently, this technique is still under
437 development and debugging
438 Moved graphic file writing to ImageFile class from if2img program
441 Cleaned up SignalFilter class
442 Added zeropad option to pjrec
443 Added zeropad options to html and cgi files
444 Added fourier_table and rfttw filter methods
445 Added FFTW routines to use real/half-complex transformations
448 Updated trace level processing
449 Added trace level to SignalFilter
450 Fixed magnitude vs. real output bug in FFT/Fourier filter
453 Fixed const issue with ImageFileArray
454 Fixed Array2dFile::labelsCopy()
455 Added copy constructor and assignment for Array2dFileLabel class
456 Added Timer to if-2.cpp and ifinfo.cpp
457 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
458 Added option processing for filter-method for pjrec to choose
459 between convolution, dft, & fft filtering
460 Fixed format string for EZPlot so axis labels now print
461 Added support for FFTW library
464 Rewrote Array2dFile class to be non-templated
465 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
466 Rewrote Array2dFileLabel class to make members private, added access routines
467 Removed timedate.cpp in favor of standard C library time/date functions
468 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
469 Added signature tag and creation date/time to projection files
472 Standardized string option processing by classes. All classes use character strings
473 to select options rather than numeric constants. Added fail() and failMessage()
474 methods to verify that objects are created correctly by character strings.
475 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
476 Rewrote ImageFile class
477 Started support for dmallocxx library, not finished
478 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
479 Updated ifinfo to show comparative statistics
480 Added printLabels() to Array2dFile class
481 Added printStatistics() to ImageFile class
484 Moved conversion filter name/id to Filter class
485 Moved conversion backprojection name/id to Backproj class
486 Added MPI broadcasting of strings
489 Merged proj_reconstr into class Projections
490 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
491 Code cleanup in projections.cpp
492 Moved conversion of phantom names/id to Phantom class
495 Converted projection files to C++ library with frnetorderstream
496 Converted image files to C++ library with frnetorderstream
497 Converted filter and convolution to object-oriented code
498 Changed default image file to float from double -- Changable in imagefile.h
499 Optimized image file writing on little-endian architectures
500 Updated README and INSTALL
503 Reorganized source files
504 MPI bug fixed to phm2pj.cpp
507 Reorganized include files
508 Fixed const pointers in strfuncs
511 Renamed directories, moved source files, combined source files
512 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
516 Skip versions to make version 2.0 the first fully C++ version
517 Renamed Raysums to Projections throughout files
518 Renamed Detector to Scanner
519 Converted Scanner and Projecions to full object-oriented
522 Converted Phantom and PhantomElements to Object-Oriented
523 Converted Detector to Object-Oriented
526 Improved Integer backprojection method
527 Fixed nearest neighbor to be truly nearest neighbor
528 Made linear interpolation more integer arithmetic -> speed improvement
529 Finished converting all C files to C++
530 Converted all use of malloc/free to C++ new/delete
531 Began object-oriented conversion of Phantom and Projection structures
534 Converted MPI data structures to C++ object
535 Made ImageFile directly inherit from Array2dFile
538 First C++ conversions
539 Portable IF (image file) format implemented with objects (SDF removed)
540 - Now all data files are cross-platform compatible
541 Converted from MPI to MPI++
542 Converted backprojection to object-oriented
543 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
546 Simpilifed endian handling
549 Added support for 64-bit (IA64) CPU
550 Removed broken B-spline interpolation
551 Added support for cygwin platform under Windows 2000
552 Added support for 16-bit PNG graphics
555 Added compile-time configuration of endian order
558 Modified the raysum file format to be platform independent
561 Added Microsoft VC compatibility
562 Cleaned up compilation warnings in libgraph
565 Continued conversion to ANSI C
566 Removed old CRT routines
569 Renamed pictures to phantoms, objects to phantom elements
570 Continued code cleanup
573 More code cleanup with reorganizing libraries
574 Added --log and --exp to sdf-1
575 Allowed negative numbers for window levels in CGI interface
578 Continued code cleanup
582 Better documented, coded raysum in-memory on on-disk options
585 Cleaned out library that wasn't being used by CTSim
586 Modified ctsim.cgi to read in configuration file ctsim.conf
589 First open source distribution for GNU/Linux
592 Converted to GNU/Linux
593 added MPI support via LAM library
596 Developed under MS-DOS and IBM EGA graphics