1 3.5.0 - Released May 2002
5 * ctsim: Added tips to be displayed at startup and via the help menu.
6 * ctsim: Added center-detector concept. Allow for detector array
7 to be any arbitrary distance from center of scanner. As a result,
8 projection files are not incompatible with previous version of
10 * ctsim: Added threaded tasks and background manager for
11 background processing as well as taking advantage of multiple-CPU's
12 on SMP systems. (Microsoft Windows only)
13 * ctsim: Added plot t-theta sampling to projection file menu.
14 * ctsim: Added Reconstruction with Rebinning for faster
15 divergent beam reconstructions.
16 * ctsim: Added import and export of DICOM image files.
17 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
18 * ctsim: Added FFT/IFFT of columns of image files.
19 * ctsim: Added clipboard cut/copy/paste for image files.
20 * ctsim: Added region of interest to reconstructions.
21 * ctsim: Added Convert Rectangular Image to Projection files
22 * ctsim: Added "Verbose Logging", "Startup Tips", and
23 "Background processes" options to Preferences dialog.
24 * ctsim: Added plotting of projection file histograms.
25 * plotfile: Added scattergram plot functions
26 * ctsim: Added accelerator key for File-Properties
27 * ctsim: Improved wireframe 3-d display to remove hidden
29 * backprojectors.cpp: Added setting of axis extent and increment
31 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
32 projection data files.
36 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
37 not being displayed on Unix platforms.
38 * views.cpp: Added out-of-memory checks to display for huge
39 image and projection files.
40 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
41 * imagefile.cpp: Fixed scaling factor in fftRows
42 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
44 * sgp.cpp: Fixed bug in drawCircle.
45 * distribution: fixed problem with documentation files not
46 being included with the distribution (Reported by Ian Kay).
47 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
48 * fixed ctsimtext shell when giving no parameters to function-name
49 * phm2if, phm2pj: Updated help messages for renamed phantoms
51 3.0.3 - Released 2/20/01
53 * ctsim: Fixed core dump on Linux with OpenGL
55 * ctsim: Fixed context-sensitive help on Linux
57 * ctsim: Fixed About box on Linux
59 3.0.2 - Released 2/20/01
61 * scanner.cpp: Fixed bug when number of detectors was even.
63 * ctsim: Improved error handling when trying to convert
64 divergent projections into polar form.
66 3.0.1 - Released 2/19/01
68 * ctsim: Fixed dialog box for reconstruction so that
69 rotation angle setting will stay fixed in-between use
72 * syserror: Fixed display bug for trace messages
74 * ctsim: MSVC optimization bug work-around, compiler
77 3.0.0 - Released 2/19/01
79 * ctsim: Massive update/fix to online help and print manual.
81 * ctsim: Added context-sensitive help to dialog boxes
83 * ctsim: Reformated all dialog boxes, much nicer now.
85 * ctsim: Improved accelerator key handling
87 * global: Added Hanning filter.
89 * global: Improved default parameters to that all defaults give
92 3.0.0beta1 - Released 2/11/01
94 * ctsim: Added most-recently-used files to File menu with
95 registry storage between executions.
97 * ctsim: Hides arcane features unless enabled by Preferences dialog
99 * ctsim: Added MDI interface for Windows version and made it default for Windows.
101 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
103 * ctsim: Added graphical About box
105 * ctsim: Escape key now removes cursor lines from image file view
107 * ctsim: Added Revert to ImageFile menu
109 * ctsim: Added accelerator (hotkeys) to frames
111 * ctsim: Online help added!
113 * backprojector: Added cubic interpolation
115 * ctsim: Added icons to Frames on X-Window and MS Windows versions
117 * ctsim: Fixed tick-label placement for plots on projection and
118 reconstruction dialogs.
120 * timer.h: Add use of _ftime when compiling on MSVC
122 * global: Projection files are not compatible with previous version
123 due to new scanner definitions.
125 * global: deleted concept of field-of-view and added
126 view ratio and scan ratio concepts.
128 * ctsim: Fixed crash on shutdown bug
130 * pjinfo: Fixed bug when doing --dump and not specifing --endview
132 * phm2pj: Fixed MPI bug with broadcasting of variables
134 * ctsimtext-lam: Changes for first version to compile under lam
137 3.0.0alpha5 - Released 1/12/00
139 * ctsim: Added EZPlotDialog, used by debugging plots in
142 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
143 bug in parsing command-line parameters.
145 * views.cpp: Fixed bug in copying of labels from images to
148 * syserror.cpp: fixed reporting for fatal errors
150 * projections.cpp: fixed MSVC failure with std:: namespace
152 * procsignal.cpp: fixed bug in equiangular reconstructions
153 for frequency/inverse-fourier filtering
155 3.0.0alpha4 - Released 1/09/01
157 * ctsim: Added reset to full-intensity scale menu item
159 * ctsim: Add conversion of projections to polar plot [Thanks to
160 Ian Kay for reference and math hints in polar bilinear scaling]
162 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
165 * ctsim: imagefile labels are now copied to plotfiles
167 * ctsim: Added more analyze menuitems
169 * ctsimtext: First version. All command-line tools are now accessed
170 through this master shell. Has both command-line and interactive
173 * ctsim: Fixed initialization of min/max bug for PlotFiles
175 * ezplot: Cleaned up y-tick label placement
177 * sgp: Added better support for projection/reconstruction animation
179 3.0.0alpha3 - Released 1/02/01
181 * ctsim: Added plotting of histograms
183 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
185 * ezplot.cpp: adjusted xtick label displays for better placement
187 3.0alpha2 - Released 1/02/01
189 * ctsim: All functions of command-line tools are now in graphical ctsim
191 * ctsim: added generation of filter images
193 * ctsim: Added 2-image math functions (mul, add, div, sub)
195 * ctsim: Added export of imagefiles to graphic file formats
197 * ctsim: Added support for scaling imagefiles in new sizes
199 * ctsim: Added ability to save standard phantom definitions as
200 text files suitable for reading.
202 * ctsim: Add labels for image transformations and display of labels
203 when performing properties of images.
205 * processsignal.cpp: Fixed "off by one" bug in
206 shuffleNaturalToFourierOrder when n is even. Moved functions to
209 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
210 image math functions to complex-valued math.
212 * phantom.cpp: Added ability to save phantom files as ASCII text.
214 3.0alpha1 - Released 12/29/00
216 * Added PlotFile class to system, used by if2 and ctsim for row
217 and column plots and comparison plots
219 * ctsim: Added image comparison statistics and image subtraction
221 * ctsim: Added plotting of rows & columns with y-axis scaling
223 * ctsim: Added row and column plot comparisons between two image
226 * ctsim: Added "Process" menu to image file display with math
227 functions. Added 2-dimensional inverse Fourier to math
228 functions. Added support for complex (real/imaginary) images.
230 * mathfuncs.cpp: Reworked statistics algorithm to share between
231 imagefile and plotfile classes.
233 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
234 nsamples > 2. Added generic mage math functions, moved from
235 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
238 * array2dfile.cpp: Added code to support complex (real/imaginary)
241 * if1: Updated to handle error conditions, such as sqrt of a
242 negative number. Converted to use new ImageFile math functions.
244 * if2: Updated to output plot files and use new ImageFile class
247 * if1: Updated to use new ImageFile class math functions
249 * ezplot: Reworked to better store colors/linestyles/symbols with
250 individual curves. Improved display of labels and ticks. Updated
251 to use POL class member variable. Updated to more C++ conventions.
253 * pol: converted to C++ class. Extracted HashTable to separate
256 * sgp: Added linestyle settings
259 First Microsoft Windows GUI version
260 Modifications for Microsoft Visual C++ compilation.
261 Improved pjinfo to output binary headers and view data, useful
262 when manually compiling phantoms that vary during projection
263 process. Thanks to Ian Kay for idea and code submission.
264 Improved sorting to find median in ImageFile::statistics
265 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
266 Changed reconstruction dialog to fix onto smaller screens
267 Fixed display of plotting in Projection views
268 Improved animation displays for Projections and Reconstructions
269 Changed code to explicitly use std:: namespace rather than
270 "namespace using std" statements
271 Fixed reconstruction scaling bug introduced in 2.0.6
272 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
275 Fixed minor compilation problem with procsignal.h
277 Fixed bug when simulating projections and Trace == CONSOLE
278 Fixed scaling bug when performing redundant rotations around object
281 Improved compilation on RedHat 7
282 Changed some of ANSI C header files to C++ header files
283 Removed README.RedHat7
286 Added documentation for --geometry setting
287 Added README.RedHat7 document
290 Fixed bug in generation of binary PGM files
291 Fixed MPI compilation bug in phm2pj.cpp
292 Inverted y-axis output for pj2if (bug alert from Ian Kay)
295 Additions to man pages (Ian Kay)
296 Fix problem with reading of ASCII phantom files (Ian Kay)
299 Fixed syntax error in fftw configuration
300 Slight modifications to support gcc v2.9.6
303 Version 2.0.0 released!
304 ctsim: Added Window menu to Main frame
305 ctsim: Disabled not support reconstruction method
306 Fixed obscure bug in sys_error
307 Fixed compilation in mingw environment not present
308 Fixed compilation in non-graphical environments
311 ctsim: Added animation of reconstruction
312 ctsim: Added saving of dialog parameters for Projection & Reconstruction
313 ctsim: Added progress dialog for rasterization of phantom
314 ctsim: used setpriority to set lower priority
315 ctsim: fixed pReconstruct not being deleted causing scaling problem
316 ctsim: fixed projection animation dialog buttons
319 ctsim: Added projection graph to animation of projection collection
320 ctsim: Added single stepping to projection collection animation
321 ctsim: improved File/Properties display for projection files
322 ctsim: Added progress dialog for reconstructions
323 ctsim: Added file labels for projection and reconstruction images
324 ctsim: Made File/Properties bring up modal dialogs
325 Added reconstruction for Equilinear and Equiangular geometries
326 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
327 Separated reconstruction into Reconstructor class
328 Fixed center of detector adjustment for even number of detectors
329 Added --enable-static to generate statically linked programs
332 ctsim: Added animation of projection collection processs
333 ctsim: Added Auto Scaling for image windows
334 ctsim: Change menus from "windowing" to "display scaling"
335 Added FieldOfView and FocalLength ratio parameters to projection collection
336 Added FocalLength & FieldOfView fields to projection data files
337 Added Projection collection for Equilinear and Equiangular geometries
338 Changed name of Rowland Phantom to correct name of Shepp-Logan
339 Fixed bug in backprojection selection
342 Added RCS Id strings to executable files
343 Added RPM Spec file for RPM package creation
344 Added loading of ASCII phanthom definitions from files
345 Fixed compilation for non-SGP architectures
346 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
347 Added Filter-Generation option to reconstruction to allow direct or
348 inverse_fourier construction of filters
349 Added median to statistics and to auto-windowing
352 Added line color support to SGP
356 Finished support for dmallocxx library
357 Fixed bug in SignalFilter::convertFilterMethodNameToID()
358 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
359 G2 windows and well as WXWindows.
360 ctsim program: "Create Phantom" now shows phantom object
361 Fixed row-plot bug in if-2
362 Reworked EZPlot's multiple plot operation
365 ctsim program: improved initial size and scroll area for image
367 ctsim program: added rasterization parameters, projections parameters,
368 and reconstruction parameters dialogs
369 Moved char[] static definition from header files to c++ files
370 Completely reorganized option processing in classes to improve
371 expandability and to assist ctsim graphical user interface.
374 ctsim program: Added dialog to set minimum/maximum display levels
375 Started ctsim.tex document file
378 Fixed compiler warnings at -Wall level
379 Began work on CTSim program to be graphical front-end of all functions
380 Moved current src/*.cpp to tools/*.cpp
381 Made CTSim graphical front-end's home to be src/
384 Added highly optimized backprojection method idiff3
385 Moved comparative stats to if-2 program from ifinfo
386 Fixed image display in if2img using G2 library
387 Added column-plot and row-plot options to if-2
388 Added autoselection of analytic/calculated spatial responses to SignalFilter
389 Added frequency-based preinterpolation to SignalFilter and idiff3
390 backprojection method. Currently, this technique is still under
391 development and debugging
392 Moved graphic file writing to ImageFile class from if2img program
395 Cleaned up SignalFilter class
396 Added zeropad option to pjrec
397 Added zeropad options to html and cgi files
398 Added fourier_table and rfttw filter methods
399 Added FFTW routines to use real/half-complex transformations
402 Updated trace level processing
403 Added trace level to SignalFilter
404 Fixed magnitude vs. real output bug in FFT/Fourier filter
407 Fixed const issue with ImageFileArray
408 Fixed Array2dFile::labelsCopy()
409 Added copy constructor and assignment for Array2dFileLabel class
410 Added Timer to if-2.cpp and ifinfo.cpp
411 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
412 Added option processing for filter-method for pjrec to choose
413 between convolution, dft, & fft filtering
414 Fixed format string for EZPlot so axis labels now print
415 Added support for FFTW library
418 Rewrote Array2dFile class to be non-templated
419 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
420 Rewrote Array2dFileLabel class to make members private, added access routines
421 Removed timedate.cpp in favor of standard C library time/date functions
422 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
423 Added signature tag and creation date/time to projection files
426 Standardized string option processing by classes. All classes use character strings
427 to select options rather than numeric constants. Added fail() and failMessage()
428 methods to verify that objects are created correctly by character strings.
429 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
430 Rewrote ImageFile class
431 Started support for dmallocxx library, not finished
432 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
433 Updated ifinfo to show comparative statistics
434 Added printLabels() to Array2dFile class
435 Added printStatistics() to ImageFile class
438 Moved conversion filter name/id to Filter class
439 Moved conversion backprojection name/id to Backproj class
440 Added MPI broadcasting of strings
443 Merged proj_reconstr into class Projections
444 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
445 Code cleanup in projections.cpp
446 Moved conversion of phantom names/id to Phantom class
449 Converted projection files to C++ library with frnetorderstream
450 Converted image files to C++ library with frnetorderstream
451 Converted filter and convolution to object-oriented code
452 Changed default image file to float from double -- Changable in imagefile.h
453 Optimized image file writing on little-endian architectures
454 Updated README and INSTALL
457 Reorganized source files
458 MPI bug fixed to phm2pj.cpp
461 Reorganized include files
462 Fixed const pointers in strfuncs
465 Renamed directories, moved source files, combined source files
466 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
470 Skip versions to make version 2.0 the first fully C++ version
471 Renamed Raysums to Projections throughout files
472 Renamed Detector to Scanner
473 Converted Scanner and Projecions to full object-oriented
476 Converted Phantom and PhantomElements to Object-Oriented
477 Converted Detector to Object-Oriented
480 Improved Integer backprojection method
481 Fixed nearest neighbor to be truly nearest neighbor
482 Made linear interpolation more integer arithmetic -> speed improvement
483 Finished converting all C files to C++
484 Converted all use of malloc/free to C++ new/delete
485 Began object-oriented conversion of Phantom and Projection structures
488 Converted MPI data structures to C++ object
489 Made ImageFile directly inherit from Array2dFile
492 First C++ conversions
493 Portable IF (image file) format implemented with objects (SDF removed)
494 - Now all data files are cross-platform compatible
495 Converted from MPI to MPI++
496 Converted backprojection to object-oriented
497 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
500 Simpilifed endian handling
503 Added support for 64-bit (IA64) CPU
504 Removed broken B-spline interpolation
505 Added support for cygwin platform under Windows 2000
506 Added support for 16-bit PNG graphics
509 Added compile-time configuration of endian order
512 Modified the raysum file format to be platform independent
515 Added Microsoft VC compatibility
516 Cleaned up compilation warnings in libgraph
519 Continued conversion to ANSI C
520 Removed old CRT routines
523 Renamed pictures to phantoms, objects to phantom elements
524 Continued code cleanup
527 More code cleanup with reorganizing libraries
528 Added --log and --exp to sdf-1
529 Allowed negative numbers for window levels in CGI interface
532 Continued code cleanup
536 Better documented, coded raysum in-memory on on-disk options
539 Cleaned out library that wasn't being used by CTSim
540 Modified ctsim.cgi to read in configuration file ctsim.conf
543 First open source distribution for GNU/Linux
546 Converted to GNU/Linux
547 added MPI support via LAM library
550 Developed under MS-DOS and IBM EGA graphics