1 Sep 30, 2003 Version 4.2.7
3 * Fix minor issue with floating point difference backprojection, add
6 * Fix building with newest versions of automake 1.7
8 * Add support for 8-byte longs [for example, Athlon64] in
9 integer difference backprojection allowing for 64-bit integer
12 Mar 22, 2003 Version 4.2.3
14 * Added Fourier reconstruction method
16 * Support gcc 3.2, wxWindows 2.4, and MacOS X
18 * Fix polar interpolation
20 Jun 26, 2002 Version 3.5.6
22 * Fix minor color PNG image importing bug
24 * Bug fix for building on Debian alpha platform
26 * Fix g++ compilation warnings
28 Jun 13, 2002 Version 3.5.5
30 * Fix printing of version number
34 * Updated Win32 compatibility
36 Jun 8, 2002 Version 3.5.4
38 * Print version number in log window with About command
40 * Fix problem with captions not showing on some windows. Reworked
41 creation of new windows.
43 * Disabled status bar on 3d views
45 * Fix bug in configure.ac that prevented using compiler
48 * Updated About splash screen
50 May 29, 2002 Version 3.5.3
51 * Added support for g++ 3.04 compiler
53 May 8, 2002 Version 3.5.2
54 * configure: improved CTN (DICOM) installation search
55 * src/ctsim.cpp: Fixed initial image size with import command
57 May 5, 2002 Version 3.5.1
61 * ctsim: Added tips to be displayed at startup and via the help menu.
62 * ctsim: Added center-detector concept. Allow for detector array
63 to be any arbitrary distance from center of scanner. As a result,
64 projection files are not incompatible with previous version of
66 * ctsim: Added threaded tasks and background manager for
67 background processing as well as taking advantage of multiple-CPU's
68 on SMP systems. (Microsoft Windows only)
69 * ctsim: Added plot t-theta sampling to projection file menu.
70 * ctsim: Added Reconstruction with Rebinning for faster
71 divergent beam reconstructions.
72 * ctsim: Added import and export of DICOM image files.
73 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
74 * ctsim: Added FFT/IFFT of columns of image files.
75 * ctsim: Added clipboard cut/copy/paste for image files.
76 * ctsim: Added region of interest to reconstructions.
77 * ctsim: Added Convert Rectangular Image to Projection files
78 * ctsim: Added "Verbose Logging", "Startup Tips", and
79 "Background processes" options to Preferences dialog.
80 * ctsim: Added plotting of projection file histograms.
81 * plotfile: Added scattergram plot functions
82 * ctsim: Added accelerator key for File-Properties
83 * ctsim: Improved wireframe 3-d display to remove hidden
85 * backprojectors.cpp: Added setting of axis extent and increment
87 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
88 projection data files.
92 * views.cpp: reduced calls to progress bar update, significant speedup
93 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
94 not being displayed on Unix platforms.
95 * views.cpp: Added out-of-memory checks to display for huge
96 image and projection files.
97 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
98 * imagefile.cpp: Fixed scaling factor in fftRows
99 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
101 * sgp.cpp: Fixed bug in drawCircle.
102 * distribution: fixed problem with documentation files not
103 being included with the distribution (Reported by Ian Kay).
104 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
105 * fixed ctsimtext shell when giving no parameters to function-name
106 * phm2if, phm2pj: Updated help messages for renamed phantoms
108 3.0.3 - Released 2/20/01
110 * ctsim: Fixed core dump on Linux with OpenGL
112 * ctsim: Fixed context-sensitive help on Linux
114 * ctsim: Fixed About box on Linux
116 3.0.2 - Released 2/20/01
118 * scanner.cpp: Fixed bug when number of detectors was even.
120 * ctsim: Improved error handling when trying to convert
121 divergent projections into polar form.
123 3.0.1 - Released 2/19/01
125 * ctsim: Fixed dialog box for reconstruction so that
126 rotation angle setting will stay fixed in-between use
129 * syserror: Fixed display bug for trace messages
131 * ctsim: MSVC optimization bug work-around, compiler
134 3.0.0 - Released 2/19/01
136 * ctsim: Massive update/fix to online help and print manual.
138 * ctsim: Added context-sensitive help to dialog boxes
140 * ctsim: Reformated all dialog boxes, much nicer now.
142 * ctsim: Improved accelerator key handling
144 * global: Added Hanning filter.
146 * global: Improved default parameters to that all defaults give
149 3.0.0beta1 - Released 2/11/01
151 * ctsim: Added most-recently-used files to File menu with
152 registry storage between executions.
154 * ctsim: Hides arcane features unless enabled by Preferences dialog
156 * ctsim: Added MDI interface for Windows version and made it default for Windows.
158 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
160 * ctsim: Added graphical About box
162 * ctsim: Escape key now removes cursor lines from image file view
164 * ctsim: Added Revert to ImageFile menu
166 * ctsim: Added accelerator (hotkeys) to frames
168 * ctsim: Online help added!
170 * backprojector: Added cubic interpolation
172 * ctsim: Added icons to Frames on X-Window and MS Windows versions
174 * ctsim: Fixed tick-label placement for plots on projection and
175 reconstruction dialogs.
177 * timer.h: Add use of _ftime when compiling on MSVC
179 * global: Projection files are not compatible with previous version
180 due to new scanner definitions.
182 * global: deleted concept of field-of-view and added
183 view ratio and scan ratio concepts.
185 * ctsim: Fixed crash on shutdown bug
187 * pjinfo: Fixed bug when doing --dump and not specifing --endview
189 * phm2pj: Fixed MPI bug with broadcasting of variables
191 * ctsimtext-lam: Changes for first version to compile under lam
194 3.0.0alpha5 - Released 1/12/00
196 * ctsim: Added EZPlotDialog, used by debugging plots in
199 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
200 bug in parsing command-line parameters.
202 * views.cpp: Fixed bug in copying of labels from images to
205 * syserror.cpp: fixed reporting for fatal errors
207 * projections.cpp: fixed MSVC failure with std:: namespace
209 * procsignal.cpp: fixed bug in equiangular reconstructions
210 for frequency/inverse-fourier filtering
212 3.0.0alpha4 - Released 1/09/01
214 * ctsim: Added reset to full-intensity scale menu item
216 * ctsim: Add conversion of projections to polar plot [Thanks to
217 Ian Kay for reference and math hints in polar bilinear scaling]
219 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
222 * ctsim: imagefile labels are now copied to plotfiles
224 * ctsim: Added more analyze menuitems
226 * ctsimtext: First version. All command-line tools are now accessed
227 through this master shell. Has both command-line and interactive
230 * ctsim: Fixed initialization of min/max bug for PlotFiles
232 * ezplot: Cleaned up y-tick label placement
234 * sgp: Added better support for projection/reconstruction animation
236 3.0.0alpha3 - Released 1/02/01
238 * ctsim: Added plotting of histograms
240 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
242 * ezplot.cpp: adjusted xtick label displays for better placement
244 3.0alpha2 - Released 1/02/01
246 * ctsim: All functions of command-line tools are now in graphical ctsim
248 * ctsim: added generation of filter images
250 * ctsim: Added 2-image math functions (mul, add, div, sub)
252 * ctsim: Added export of imagefiles to graphic file formats
254 * ctsim: Added support for scaling imagefiles in new sizes
256 * ctsim: Added ability to save standard phantom definitions as
257 text files suitable for reading.
259 * ctsim: Add labels for image transformations and display of labels
260 when performing properties of images.
262 * processsignal.cpp: Fixed "off by one" bug in
263 shuffleNaturalToFourierOrder when n is even. Moved functions to
266 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
267 image math functions to complex-valued math.
269 * phantom.cpp: Added ability to save phantom files as ASCII text.
271 3.0alpha1 - Released 12/29/00
273 * Added PlotFile class to system, used by if2 and ctsim for row
274 and column plots and comparison plots
276 * ctsim: Added image comparison statistics and image subtraction
278 * ctsim: Added plotting of rows & columns with y-axis scaling
280 * ctsim: Added row and column plot comparisons between two image
283 * ctsim: Added "Process" menu to image file display with math
284 functions. Added 2-dimensional inverse Fourier to math
285 functions. Added support for complex (real/imaginary) images.
287 * mathfuncs.cpp: Reworked statistics algorithm to share between
288 imagefile and plotfile classes.
290 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
291 nsamples > 2. Added generic mage math functions, moved from
292 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
295 * array2dfile.cpp: Added code to support complex (real/imaginary)
298 * if1: Updated to handle error conditions, such as sqrt of a
299 negative number. Converted to use new ImageFile math functions.
301 * if2: Updated to output plot files and use new ImageFile class
304 * if1: Updated to use new ImageFile class math functions
306 * ezplot: Reworked to better store colors/linestyles/symbols with
307 individual curves. Improved display of labels and ticks. Updated
308 to use POL class member variable. Updated to more C++ conventions.
310 * pol: converted to C++ class. Extracted HashTable to separate
313 * sgp: Added linestyle settings
316 First Microsoft Windows GUI version
317 Modifications for Microsoft Visual C++ compilation.
318 Improved pjinfo to output binary headers and view data, useful
319 when manually compiling phantoms that vary during projection
320 process. Thanks to Ian Kay for idea and code submission.
321 Improved sorting to find median in ImageFile::statistics
322 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
323 Changed reconstruction dialog to fix onto smaller screens
324 Fixed display of plotting in Projection views
325 Improved animation displays for Projections and Reconstructions
326 Changed code to explicitly use std:: namespace rather than
327 "namespace using std" statements
328 Fixed reconstruction scaling bug introduced in 2.0.6
329 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
332 Fixed minor compilation problem with procsignal.h
334 Fixed bug when simulating projections and Trace == CONSOLE
335 Fixed scaling bug when performing redundant rotations around object
338 Improved compilation on RedHat 7
339 Changed some of ANSI C header files to C++ header files
340 Removed README.RedHat7
343 Added documentation for --geometry setting
344 Added README.RedHat7 document
347 Fixed bug in generation of binary PGM files
348 Fixed MPI compilation bug in phm2pj.cpp
349 Inverted y-axis output for pj2if (bug alert from Ian Kay)
352 Additions to man pages (Ian Kay)
353 Fix problem with reading of ASCII phantom files (Ian Kay)
356 Fixed syntax error in fftw configuration
357 Slight modifications to support gcc v2.9.6
360 Version 2.0.0 released!
361 ctsim: Added Window menu to Main frame
362 ctsim: Disabled not support reconstruction method
363 Fixed obscure bug in sys_error
364 Fixed compilation in mingw environment not present
365 Fixed compilation in non-graphical environments
368 ctsim: Added animation of reconstruction
369 ctsim: Added saving of dialog parameters for Projection & Reconstruction
370 ctsim: Added progress dialog for rasterization of phantom
371 ctsim: used setpriority to set lower priority
372 ctsim: fixed pReconstruct not being deleted causing scaling problem
373 ctsim: fixed projection animation dialog buttons
376 ctsim: Added projection graph to animation of projection collection
377 ctsim: Added single stepping to projection collection animation
378 ctsim: improved File/Properties display for projection files
379 ctsim: Added progress dialog for reconstructions
380 ctsim: Added file labels for projection and reconstruction images
381 ctsim: Made File/Properties bring up modal dialogs
382 Added reconstruction for Equilinear and Equiangular geometries
383 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
384 Separated reconstruction into Reconstructor class
385 Fixed center of detector adjustment for even number of detectors
386 Added --enable-static to generate statically linked programs
389 ctsim: Added animation of projection collection processs
390 ctsim: Added Auto Scaling for image windows
391 ctsim: Change menus from "windowing" to "display scaling"
392 Added FieldOfView and FocalLength ratio parameters to projection collection
393 Added FocalLength & FieldOfView fields to projection data files
394 Added Projection collection for Equilinear and Equiangular geometries
395 Changed name of Rowland Phantom to correct name of Shepp-Logan
396 Fixed bug in backprojection selection
399 Added RCS Id strings to executable files
400 Added RPM Spec file for RPM package creation
401 Added loading of ASCII phanthom definitions from files
402 Fixed compilation for non-SGP architectures
403 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
404 Added Filter-Generation option to reconstruction to allow direct or
405 inverse_fourier construction of filters
406 Added median to statistics and to auto-windowing
409 Added line color support to SGP
413 Finished support for dmallocxx library
414 Fixed bug in SignalFilter::convertFilterMethodNameToID()
415 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
416 G2 windows and well as WXWindows.
417 ctsim program: "Create Phantom" now shows phantom object
418 Fixed row-plot bug in if-2
419 Reworked EZPlot's multiple plot operation
422 ctsim program: improved initial size and scroll area for image
424 ctsim program: added rasterization parameters, projections parameters,
425 and reconstruction parameters dialogs
426 Moved char[] static definition from header files to c++ files
427 Completely reorganized option processing in classes to improve
428 expandability and to assist ctsim graphical user interface.
431 ctsim program: Added dialog to set minimum/maximum display levels
432 Started ctsim.tex document file
435 Fixed compiler warnings at -Wall level
436 Began work on CTSim program to be graphical front-end of all functions
437 Moved current src/*.cpp to tools/*.cpp
438 Made CTSim graphical front-end's home to be src/
441 Added highly optimized backprojection method idiff3
442 Moved comparative stats to if-2 program from ifinfo
443 Fixed image display in if2img using G2 library
444 Added column-plot and row-plot options to if-2
445 Added autoselection of analytic/calculated spatial responses to SignalFilter
446 Added frequency-based preinterpolation to SignalFilter and idiff3
447 backprojection method. Currently, this technique is still under
448 development and debugging
449 Moved graphic file writing to ImageFile class from if2img program
452 Cleaned up SignalFilter class
453 Added zeropad option to pjrec
454 Added zeropad options to html and cgi files
455 Added fourier_table and rfttw filter methods
456 Added FFTW routines to use real/half-complex transformations
459 Updated trace level processing
460 Added trace level to SignalFilter
461 Fixed magnitude vs. real output bug in FFT/Fourier filter
464 Fixed const issue with ImageFileArray
465 Fixed Array2dFile::labelsCopy()
466 Added copy constructor and assignment for Array2dFileLabel class
467 Added Timer to if-2.cpp and ifinfo.cpp
468 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
469 Added option processing for filter-method for pjrec to choose
470 between convolution, dft, & fft filtering
471 Fixed format string for EZPlot so axis labels now print
472 Added support for FFTW library
475 Rewrote Array2dFile class to be non-templated
476 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
477 Rewrote Array2dFileLabel class to make members private, added access routines
478 Removed timedate.cpp in favor of standard C library time/date functions
479 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
480 Added signature tag and creation date/time to projection files
483 Standardized string option processing by classes. All classes use character strings
484 to select options rather than numeric constants. Added fail() and failMessage()
485 methods to verify that objects are created correctly by character strings.
486 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
487 Rewrote ImageFile class
488 Started support for dmallocxx library, not finished
489 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
490 Updated ifinfo to show comparative statistics
491 Added printLabels() to Array2dFile class
492 Added printStatistics() to ImageFile class
495 Moved conversion filter name/id to Filter class
496 Moved conversion backprojection name/id to Backproj class
497 Added MPI broadcasting of strings
500 Merged proj_reconstr into class Projections
501 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
502 Code cleanup in projections.cpp
503 Moved conversion of phantom names/id to Phantom class
506 Converted projection files to C++ library with frnetorderstream
507 Converted image files to C++ library with frnetorderstream
508 Converted filter and convolution to object-oriented code
509 Changed default image file to float from double -- Changable in imagefile.h
510 Optimized image file writing on little-endian architectures
511 Updated README and INSTALL
514 Reorganized source files
515 MPI bug fixed to phm2pj.cpp
518 Reorganized include files
519 Fixed const pointers in strfuncs
522 Renamed directories, moved source files, combined source files
523 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
527 Skip versions to make version 2.0 the first fully C++ version
528 Renamed Raysums to Projections throughout files
529 Renamed Detector to Scanner
530 Converted Scanner and Projecions to full object-oriented
533 Converted Phantom and PhantomElements to Object-Oriented
534 Converted Detector to Object-Oriented
537 Improved Integer backprojection method
538 Fixed nearest neighbor to be truly nearest neighbor
539 Made linear interpolation more integer arithmetic -> speed improvement
540 Finished converting all C files to C++
541 Converted all use of malloc/free to C++ new/delete
542 Began object-oriented conversion of Phantom and Projection structures
545 Converted MPI data structures to C++ object
546 Made ImageFile directly inherit from Array2dFile
549 First C++ conversions
550 Portable IF (image file) format implemented with objects (SDF removed)
551 - Now all data files are cross-platform compatible
552 Converted from MPI to MPI++
553 Converted backprojection to object-oriented
554 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
557 Simpilifed endian handling
560 Added support for 64-bit (IA64) CPU
561 Removed broken B-spline interpolation
562 Added support for cygwin platform under Windows 2000
563 Added support for 16-bit PNG graphics
566 Added compile-time configuration of endian order
569 Modified the raysum file format to be platform independent
572 Added Microsoft VC compatibility
573 Cleaned up compilation warnings in libgraph
576 Continued conversion to ANSI C
577 Removed old CRT routines
580 Renamed pictures to phantoms, objects to phantom elements
581 Continued code cleanup
584 More code cleanup with reorganizing libraries
585 Added --log and --exp to sdf-1
586 Allowed negative numbers for window levels in CGI interface
589 Continued code cleanup
593 Better documented, coded raysum in-memory on on-disk options
596 Cleaned out library that wasn't being used by CTSim
597 Modified ctsim.cgi to read in configuration file ctsim.conf
600 First open source distribution for GNU/Linux
603 Converted to GNU/Linux
604 added MPI support via LAM library
607 Developed under MS-DOS and IBM EGA graphics