1 Oct 5, 2003 Version 4.2.7
3 * Add support for building on RedHat AMD64
5 Sep 30, 2003 Version 4.2.7
7 * Fix minor issue with floating point difference backprojection, add
10 * Fix building with newest versions of automake 1.7
12 * Add support for 8-byte longs [for example, Athlon64] in
13 integer difference backprojection allowing for 64-bit integer
16 Mar 22, 2003 Version 4.2.3
18 * Added Fourier reconstruction method
20 * Support gcc 3.2, wxWindows 2.4, and MacOS X
22 * Fix polar interpolation
24 Jun 26, 2002 Version 3.5.6
26 * Fix minor color PNG image importing bug
28 * Bug fix for building on Debian alpha platform
30 * Fix g++ compilation warnings
32 Jun 13, 2002 Version 3.5.5
34 * Fix printing of version number
38 * Updated Win32 compatibility
40 Jun 8, 2002 Version 3.5.4
42 * Print version number in log window with About command
44 * Fix problem with captions not showing on some windows. Reworked
45 creation of new windows.
47 * Disabled status bar on 3d views
49 * Fix bug in configure.ac that prevented using compiler
52 * Updated About splash screen
54 May 29, 2002 Version 3.5.3
55 * Added support for g++ 3.04 compiler
57 May 8, 2002 Version 3.5.2
58 * configure: improved CTN (DICOM) installation search
59 * src/ctsim.cpp: Fixed initial image size with import command
61 May 5, 2002 Version 3.5.1
65 * ctsim: Added tips to be displayed at startup and via the help menu.
66 * ctsim: Added center-detector concept. Allow for detector array
67 to be any arbitrary distance from center of scanner. As a result,
68 projection files are not incompatible with previous version of
70 * ctsim: Added threaded tasks and background manager for
71 background processing as well as taking advantage of multiple-CPU's
72 on SMP systems. (Microsoft Windows only)
73 * ctsim: Added plot t-theta sampling to projection file menu.
74 * ctsim: Added Reconstruction with Rebinning for faster
75 divergent beam reconstructions.
76 * ctsim: Added import and export of DICOM image files.
77 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
78 * ctsim: Added FFT/IFFT of columns of image files.
79 * ctsim: Added clipboard cut/copy/paste for image files.
80 * ctsim: Added region of interest to reconstructions.
81 * ctsim: Added Convert Rectangular Image to Projection files
82 * ctsim: Added "Verbose Logging", "Startup Tips", and
83 "Background processes" options to Preferences dialog.
84 * ctsim: Added plotting of projection file histograms.
85 * plotfile: Added scattergram plot functions
86 * ctsim: Added accelerator key for File-Properties
87 * ctsim: Improved wireframe 3-d display to remove hidden
89 * backprojectors.cpp: Added setting of axis extent and increment
91 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
92 projection data files.
96 * views.cpp: reduced calls to progress bar update, significant speedup
97 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
98 not being displayed on Unix platforms.
99 * views.cpp: Added out-of-memory checks to display for huge
100 image and projection files.
101 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
102 * imagefile.cpp: Fixed scaling factor in fftRows
103 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
105 * sgp.cpp: Fixed bug in drawCircle.
106 * distribution: fixed problem with documentation files not
107 being included with the distribution (Reported by Ian Kay).
108 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
109 * fixed ctsimtext shell when giving no parameters to function-name
110 * phm2if, phm2pj: Updated help messages for renamed phantoms
112 3.0.3 - Released 2/20/01
114 * ctsim: Fixed core dump on Linux with OpenGL
116 * ctsim: Fixed context-sensitive help on Linux
118 * ctsim: Fixed About box on Linux
120 3.0.2 - Released 2/20/01
122 * scanner.cpp: Fixed bug when number of detectors was even.
124 * ctsim: Improved error handling when trying to convert
125 divergent projections into polar form.
127 3.0.1 - Released 2/19/01
129 * ctsim: Fixed dialog box for reconstruction so that
130 rotation angle setting will stay fixed in-between use
133 * syserror: Fixed display bug for trace messages
135 * ctsim: MSVC optimization bug work-around, compiler
138 3.0.0 - Released 2/19/01
140 * ctsim: Massive update/fix to online help and print manual.
142 * ctsim: Added context-sensitive help to dialog boxes
144 * ctsim: Reformated all dialog boxes, much nicer now.
146 * ctsim: Improved accelerator key handling
148 * global: Added Hanning filter.
150 * global: Improved default parameters to that all defaults give
153 3.0.0beta1 - Released 2/11/01
155 * ctsim: Added most-recently-used files to File menu with
156 registry storage between executions.
158 * ctsim: Hides arcane features unless enabled by Preferences dialog
160 * ctsim: Added MDI interface for Windows version and made it default for Windows.
162 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
164 * ctsim: Added graphical About box
166 * ctsim: Escape key now removes cursor lines from image file view
168 * ctsim: Added Revert to ImageFile menu
170 * ctsim: Added accelerator (hotkeys) to frames
172 * ctsim: Online help added!
174 * backprojector: Added cubic interpolation
176 * ctsim: Added icons to Frames on X-Window and MS Windows versions
178 * ctsim: Fixed tick-label placement for plots on projection and
179 reconstruction dialogs.
181 * timer.h: Add use of _ftime when compiling on MSVC
183 * global: Projection files are not compatible with previous version
184 due to new scanner definitions.
186 * global: deleted concept of field-of-view and added
187 view ratio and scan ratio concepts.
189 * ctsim: Fixed crash on shutdown bug
191 * pjinfo: Fixed bug when doing --dump and not specifing --endview
193 * phm2pj: Fixed MPI bug with broadcasting of variables
195 * ctsimtext-lam: Changes for first version to compile under lam
198 3.0.0alpha5 - Released 1/12/00
200 * ctsim: Added EZPlotDialog, used by debugging plots in
203 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
204 bug in parsing command-line parameters.
206 * views.cpp: Fixed bug in copying of labels from images to
209 * syserror.cpp: fixed reporting for fatal errors
211 * projections.cpp: fixed MSVC failure with std:: namespace
213 * procsignal.cpp: fixed bug in equiangular reconstructions
214 for frequency/inverse-fourier filtering
216 3.0.0alpha4 - Released 1/09/01
218 * ctsim: Added reset to full-intensity scale menu item
220 * ctsim: Add conversion of projections to polar plot [Thanks to
221 Ian Kay for reference and math hints in polar bilinear scaling]
223 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
226 * ctsim: imagefile labels are now copied to plotfiles
228 * ctsim: Added more analyze menuitems
230 * ctsimtext: First version. All command-line tools are now accessed
231 through this master shell. Has both command-line and interactive
234 * ctsim: Fixed initialization of min/max bug for PlotFiles
236 * ezplot: Cleaned up y-tick label placement
238 * sgp: Added better support for projection/reconstruction animation
240 3.0.0alpha3 - Released 1/02/01
242 * ctsim: Added plotting of histograms
244 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
246 * ezplot.cpp: adjusted xtick label displays for better placement
248 3.0alpha2 - Released 1/02/01
250 * ctsim: All functions of command-line tools are now in graphical ctsim
252 * ctsim: added generation of filter images
254 * ctsim: Added 2-image math functions (mul, add, div, sub)
256 * ctsim: Added export of imagefiles to graphic file formats
258 * ctsim: Added support for scaling imagefiles in new sizes
260 * ctsim: Added ability to save standard phantom definitions as
261 text files suitable for reading.
263 * ctsim: Add labels for image transformations and display of labels
264 when performing properties of images.
266 * processsignal.cpp: Fixed "off by one" bug in
267 shuffleNaturalToFourierOrder when n is even. Moved functions to
270 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
271 image math functions to complex-valued math.
273 * phantom.cpp: Added ability to save phantom files as ASCII text.
275 3.0alpha1 - Released 12/29/00
277 * Added PlotFile class to system, used by if2 and ctsim for row
278 and column plots and comparison plots
280 * ctsim: Added image comparison statistics and image subtraction
282 * ctsim: Added plotting of rows & columns with y-axis scaling
284 * ctsim: Added row and column plot comparisons between two image
287 * ctsim: Added "Process" menu to image file display with math
288 functions. Added 2-dimensional inverse Fourier to math
289 functions. Added support for complex (real/imaginary) images.
291 * mathfuncs.cpp: Reworked statistics algorithm to share between
292 imagefile and plotfile classes.
294 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
295 nsamples > 2. Added generic mage math functions, moved from
296 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
299 * array2dfile.cpp: Added code to support complex (real/imaginary)
302 * if1: Updated to handle error conditions, such as sqrt of a
303 negative number. Converted to use new ImageFile math functions.
305 * if2: Updated to output plot files and use new ImageFile class
308 * if1: Updated to use new ImageFile class math functions
310 * ezplot: Reworked to better store colors/linestyles/symbols with
311 individual curves. Improved display of labels and ticks. Updated
312 to use POL class member variable. Updated to more C++ conventions.
314 * pol: converted to C++ class. Extracted HashTable to separate
317 * sgp: Added linestyle settings
320 First Microsoft Windows GUI version
321 Modifications for Microsoft Visual C++ compilation.
322 Improved pjinfo to output binary headers and view data, useful
323 when manually compiling phantoms that vary during projection
324 process. Thanks to Ian Kay for idea and code submission.
325 Improved sorting to find median in ImageFile::statistics
326 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
327 Changed reconstruction dialog to fix onto smaller screens
328 Fixed display of plotting in Projection views
329 Improved animation displays for Projections and Reconstructions
330 Changed code to explicitly use std:: namespace rather than
331 "namespace using std" statements
332 Fixed reconstruction scaling bug introduced in 2.0.6
333 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
336 Fixed minor compilation problem with procsignal.h
338 Fixed bug when simulating projections and Trace == CONSOLE
339 Fixed scaling bug when performing redundant rotations around object
342 Improved compilation on RedHat 7
343 Changed some of ANSI C header files to C++ header files
344 Removed README.RedHat7
347 Added documentation for --geometry setting
348 Added README.RedHat7 document
351 Fixed bug in generation of binary PGM files
352 Fixed MPI compilation bug in phm2pj.cpp
353 Inverted y-axis output for pj2if (bug alert from Ian Kay)
356 Additions to man pages (Ian Kay)
357 Fix problem with reading of ASCII phantom files (Ian Kay)
360 Fixed syntax error in fftw configuration
361 Slight modifications to support gcc v2.9.6
364 Version 2.0.0 released!
365 ctsim: Added Window menu to Main frame
366 ctsim: Disabled not support reconstruction method
367 Fixed obscure bug in sys_error
368 Fixed compilation in mingw environment not present
369 Fixed compilation in non-graphical environments
372 ctsim: Added animation of reconstruction
373 ctsim: Added saving of dialog parameters for Projection & Reconstruction
374 ctsim: Added progress dialog for rasterization of phantom
375 ctsim: used setpriority to set lower priority
376 ctsim: fixed pReconstruct not being deleted causing scaling problem
377 ctsim: fixed projection animation dialog buttons
380 ctsim: Added projection graph to animation of projection collection
381 ctsim: Added single stepping to projection collection animation
382 ctsim: improved File/Properties display for projection files
383 ctsim: Added progress dialog for reconstructions
384 ctsim: Added file labels for projection and reconstruction images
385 ctsim: Made File/Properties bring up modal dialogs
386 Added reconstruction for Equilinear and Equiangular geometries
387 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
388 Separated reconstruction into Reconstructor class
389 Fixed center of detector adjustment for even number of detectors
390 Added --enable-static to generate statically linked programs
393 ctsim: Added animation of projection collection processs
394 ctsim: Added Auto Scaling for image windows
395 ctsim: Change menus from "windowing" to "display scaling"
396 Added FieldOfView and FocalLength ratio parameters to projection collection
397 Added FocalLength & FieldOfView fields to projection data files
398 Added Projection collection for Equilinear and Equiangular geometries
399 Changed name of Rowland Phantom to correct name of Shepp-Logan
400 Fixed bug in backprojection selection
403 Added RCS Id strings to executable files
404 Added RPM Spec file for RPM package creation
405 Added loading of ASCII phanthom definitions from files
406 Fixed compilation for non-SGP architectures
407 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
408 Added Filter-Generation option to reconstruction to allow direct or
409 inverse_fourier construction of filters
410 Added median to statistics and to auto-windowing
413 Added line color support to SGP
417 Finished support for dmallocxx library
418 Fixed bug in SignalFilter::convertFilterMethodNameToID()
419 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
420 G2 windows and well as WXWindows.
421 ctsim program: "Create Phantom" now shows phantom object
422 Fixed row-plot bug in if-2
423 Reworked EZPlot's multiple plot operation
426 ctsim program: improved initial size and scroll area for image
428 ctsim program: added rasterization parameters, projections parameters,
429 and reconstruction parameters dialogs
430 Moved char[] static definition from header files to c++ files
431 Completely reorganized option processing in classes to improve
432 expandability and to assist ctsim graphical user interface.
435 ctsim program: Added dialog to set minimum/maximum display levels
436 Started ctsim.tex document file
439 Fixed compiler warnings at -Wall level
440 Began work on CTSim program to be graphical front-end of all functions
441 Moved current src/*.cpp to tools/*.cpp
442 Made CTSim graphical front-end's home to be src/
445 Added highly optimized backprojection method idiff3
446 Moved comparative stats to if-2 program from ifinfo
447 Fixed image display in if2img using G2 library
448 Added column-plot and row-plot options to if-2
449 Added autoselection of analytic/calculated spatial responses to SignalFilter
450 Added frequency-based preinterpolation to SignalFilter and idiff3
451 backprojection method. Currently, this technique is still under
452 development and debugging
453 Moved graphic file writing to ImageFile class from if2img program
456 Cleaned up SignalFilter class
457 Added zeropad option to pjrec
458 Added zeropad options to html and cgi files
459 Added fourier_table and rfttw filter methods
460 Added FFTW routines to use real/half-complex transformations
463 Updated trace level processing
464 Added trace level to SignalFilter
465 Fixed magnitude vs. real output bug in FFT/Fourier filter
468 Fixed const issue with ImageFileArray
469 Fixed Array2dFile::labelsCopy()
470 Added copy constructor and assignment for Array2dFileLabel class
471 Added Timer to if-2.cpp and ifinfo.cpp
472 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
473 Added option processing for filter-method for pjrec to choose
474 between convolution, dft, & fft filtering
475 Fixed format string for EZPlot so axis labels now print
476 Added support for FFTW library
479 Rewrote Array2dFile class to be non-templated
480 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
481 Rewrote Array2dFileLabel class to make members private, added access routines
482 Removed timedate.cpp in favor of standard C library time/date functions
483 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
484 Added signature tag and creation date/time to projection files
487 Standardized string option processing by classes. All classes use character strings
488 to select options rather than numeric constants. Added fail() and failMessage()
489 methods to verify that objects are created correctly by character strings.
490 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
491 Rewrote ImageFile class
492 Started support for dmallocxx library, not finished
493 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
494 Updated ifinfo to show comparative statistics
495 Added printLabels() to Array2dFile class
496 Added printStatistics() to ImageFile class
499 Moved conversion filter name/id to Filter class
500 Moved conversion backprojection name/id to Backproj class
501 Added MPI broadcasting of strings
504 Merged proj_reconstr into class Projections
505 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
506 Code cleanup in projections.cpp
507 Moved conversion of phantom names/id to Phantom class
510 Converted projection files to C++ library with frnetorderstream
511 Converted image files to C++ library with frnetorderstream
512 Converted filter and convolution to object-oriented code
513 Changed default image file to float from double -- Changable in imagefile.h
514 Optimized image file writing on little-endian architectures
515 Updated README and INSTALL
518 Reorganized source files
519 MPI bug fixed to phm2pj.cpp
522 Reorganized include files
523 Fixed const pointers in strfuncs
526 Renamed directories, moved source files, combined source files
527 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
531 Skip versions to make version 2.0 the first fully C++ version
532 Renamed Raysums to Projections throughout files
533 Renamed Detector to Scanner
534 Converted Scanner and Projecions to full object-oriented
537 Converted Phantom and PhantomElements to Object-Oriented
538 Converted Detector to Object-Oriented
541 Improved Integer backprojection method
542 Fixed nearest neighbor to be truly nearest neighbor
543 Made linear interpolation more integer arithmetic -> speed improvement
544 Finished converting all C files to C++
545 Converted all use of malloc/free to C++ new/delete
546 Began object-oriented conversion of Phantom and Projection structures
549 Converted MPI data structures to C++ object
550 Made ImageFile directly inherit from Array2dFile
553 First C++ conversions
554 Portable IF (image file) format implemented with objects (SDF removed)
555 - Now all data files are cross-platform compatible
556 Converted from MPI to MPI++
557 Converted backprojection to object-oriented
558 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
561 Simpilifed endian handling
564 Added support for 64-bit (IA64) CPU
565 Removed broken B-spline interpolation
566 Added support for cygwin platform under Windows 2000
567 Added support for 16-bit PNG graphics
570 Added compile-time configuration of endian order
573 Modified the raysum file format to be platform independent
576 Added Microsoft VC compatibility
577 Cleaned up compilation warnings in libgraph
580 Continued conversion to ANSI C
581 Removed old CRT routines
584 Renamed pictures to phantoms, objects to phantom elements
585 Continued code cleanup
588 More code cleanup with reorganizing libraries
589 Added --log and --exp to sdf-1
590 Allowed negative numbers for window levels in CGI interface
593 Continued code cleanup
597 Better documented, coded raysum in-memory on on-disk options
600 Cleaned out library that wasn't being used by CTSim
601 Modified ctsim.cgi to read in configuration file ctsim.conf
604 First open source distribution for GNU/Linux
607 Converted to GNU/Linux
608 added MPI support via LAM library
611 Developed under MS-DOS and IBM EGA graphics