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: reduced calls to progress bar update, significant speedup
37 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
38 not being displayed on Unix platforms.
39 * views.cpp: Added out-of-memory checks to display for huge
40 image and projection files.
41 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
42 * imagefile.cpp: Fixed scaling factor in fftRows
43 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
45 * sgp.cpp: Fixed bug in drawCircle.
46 * distribution: fixed problem with documentation files not
47 being included with the distribution (Reported by Ian Kay).
48 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
49 * fixed ctsimtext shell when giving no parameters to function-name
50 * phm2if, phm2pj: Updated help messages for renamed phantoms
52 3.0.3 - Released 2/20/01
54 * ctsim: Fixed core dump on Linux with OpenGL
56 * ctsim: Fixed context-sensitive help on Linux
58 * ctsim: Fixed About box on Linux
60 3.0.2 - Released 2/20/01
62 * scanner.cpp: Fixed bug when number of detectors was even.
64 * ctsim: Improved error handling when trying to convert
65 divergent projections into polar form.
67 3.0.1 - Released 2/19/01
69 * ctsim: Fixed dialog box for reconstruction so that
70 rotation angle setting will stay fixed in-between use
73 * syserror: Fixed display bug for trace messages
75 * ctsim: MSVC optimization bug work-around, compiler
78 3.0.0 - Released 2/19/01
80 * ctsim: Massive update/fix to online help and print manual.
82 * ctsim: Added context-sensitive help to dialog boxes
84 * ctsim: Reformated all dialog boxes, much nicer now.
86 * ctsim: Improved accelerator key handling
88 * global: Added Hanning filter.
90 * global: Improved default parameters to that all defaults give
93 3.0.0beta1 - Released 2/11/01
95 * ctsim: Added most-recently-used files to File menu with
96 registry storage between executions.
98 * ctsim: Hides arcane features unless enabled by Preferences dialog
100 * ctsim: Added MDI interface for Windows version and made it default for Windows.
102 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
104 * ctsim: Added graphical About box
106 * ctsim: Escape key now removes cursor lines from image file view
108 * ctsim: Added Revert to ImageFile menu
110 * ctsim: Added accelerator (hotkeys) to frames
112 * ctsim: Online help added!
114 * backprojector: Added cubic interpolation
116 * ctsim: Added icons to Frames on X-Window and MS Windows versions
118 * ctsim: Fixed tick-label placement for plots on projection and
119 reconstruction dialogs.
121 * timer.h: Add use of _ftime when compiling on MSVC
123 * global: Projection files are not compatible with previous version
124 due to new scanner definitions.
126 * global: deleted concept of field-of-view and added
127 view ratio and scan ratio concepts.
129 * ctsim: Fixed crash on shutdown bug
131 * pjinfo: Fixed bug when doing --dump and not specifing --endview
133 * phm2pj: Fixed MPI bug with broadcasting of variables
135 * ctsimtext-lam: Changes for first version to compile under lam
138 3.0.0alpha5 - Released 1/12/00
140 * ctsim: Added EZPlotDialog, used by debugging plots in
143 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
144 bug in parsing command-line parameters.
146 * views.cpp: Fixed bug in copying of labels from images to
149 * syserror.cpp: fixed reporting for fatal errors
151 * projections.cpp: fixed MSVC failure with std:: namespace
153 * procsignal.cpp: fixed bug in equiangular reconstructions
154 for frequency/inverse-fourier filtering
156 3.0.0alpha4 - Released 1/09/01
158 * ctsim: Added reset to full-intensity scale menu item
160 * ctsim: Add conversion of projections to polar plot [Thanks to
161 Ian Kay for reference and math hints in polar bilinear scaling]
163 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
166 * ctsim: imagefile labels are now copied to plotfiles
168 * ctsim: Added more analyze menuitems
170 * ctsimtext: First version. All command-line tools are now accessed
171 through this master shell. Has both command-line and interactive
174 * ctsim: Fixed initialization of min/max bug for PlotFiles
176 * ezplot: Cleaned up y-tick label placement
178 * sgp: Added better support for projection/reconstruction animation
180 3.0.0alpha3 - Released 1/02/01
182 * ctsim: Added plotting of histograms
184 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
186 * ezplot.cpp: adjusted xtick label displays for better placement
188 3.0alpha2 - Released 1/02/01
190 * ctsim: All functions of command-line tools are now in graphical ctsim
192 * ctsim: added generation of filter images
194 * ctsim: Added 2-image math functions (mul, add, div, sub)
196 * ctsim: Added export of imagefiles to graphic file formats
198 * ctsim: Added support for scaling imagefiles in new sizes
200 * ctsim: Added ability to save standard phantom definitions as
201 text files suitable for reading.
203 * ctsim: Add labels for image transformations and display of labels
204 when performing properties of images.
206 * processsignal.cpp: Fixed "off by one" bug in
207 shuffleNaturalToFourierOrder when n is even. Moved functions to
210 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
211 image math functions to complex-valued math.
213 * phantom.cpp: Added ability to save phantom files as ASCII text.
215 3.0alpha1 - Released 12/29/00
217 * Added PlotFile class to system, used by if2 and ctsim for row
218 and column plots and comparison plots
220 * ctsim: Added image comparison statistics and image subtraction
222 * ctsim: Added plotting of rows & columns with y-axis scaling
224 * ctsim: Added row and column plot comparisons between two image
227 * ctsim: Added "Process" menu to image file display with math
228 functions. Added 2-dimensional inverse Fourier to math
229 functions. Added support for complex (real/imaginary) images.
231 * mathfuncs.cpp: Reworked statistics algorithm to share between
232 imagefile and plotfile classes.
234 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
235 nsamples > 2. Added generic mage math functions, moved from
236 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
239 * array2dfile.cpp: Added code to support complex (real/imaginary)
242 * if1: Updated to handle error conditions, such as sqrt of a
243 negative number. Converted to use new ImageFile math functions.
245 * if2: Updated to output plot files and use new ImageFile class
248 * if1: Updated to use new ImageFile class math functions
250 * ezplot: Reworked to better store colors/linestyles/symbols with
251 individual curves. Improved display of labels and ticks. Updated
252 to use POL class member variable. Updated to more C++ conventions.
254 * pol: converted to C++ class. Extracted HashTable to separate
257 * sgp: Added linestyle settings
260 First Microsoft Windows GUI version
261 Modifications for Microsoft Visual C++ compilation.
262 Improved pjinfo to output binary headers and view data, useful
263 when manually compiling phantoms that vary during projection
264 process. Thanks to Ian Kay for idea and code submission.
265 Improved sorting to find median in ImageFile::statistics
266 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
267 Changed reconstruction dialog to fix onto smaller screens
268 Fixed display of plotting in Projection views
269 Improved animation displays for Projections and Reconstructions
270 Changed code to explicitly use std:: namespace rather than
271 "namespace using std" statements
272 Fixed reconstruction scaling bug introduced in 2.0.6
273 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
276 Fixed minor compilation problem with procsignal.h
278 Fixed bug when simulating projections and Trace == CONSOLE
279 Fixed scaling bug when performing redundant rotations around object
282 Improved compilation on RedHat 7
283 Changed some of ANSI C header files to C++ header files
284 Removed README.RedHat7
287 Added documentation for --geometry setting
288 Added README.RedHat7 document
291 Fixed bug in generation of binary PGM files
292 Fixed MPI compilation bug in phm2pj.cpp
293 Inverted y-axis output for pj2if (bug alert from Ian Kay)
296 Additions to man pages (Ian Kay)
297 Fix problem with reading of ASCII phantom files (Ian Kay)
300 Fixed syntax error in fftw configuration
301 Slight modifications to support gcc v2.9.6
304 Version 2.0.0 released!
305 ctsim: Added Window menu to Main frame
306 ctsim: Disabled not support reconstruction method
307 Fixed obscure bug in sys_error
308 Fixed compilation in mingw environment not present
309 Fixed compilation in non-graphical environments
312 ctsim: Added animation of reconstruction
313 ctsim: Added saving of dialog parameters for Projection & Reconstruction
314 ctsim: Added progress dialog for rasterization of phantom
315 ctsim: used setpriority to set lower priority
316 ctsim: fixed pReconstruct not being deleted causing scaling problem
317 ctsim: fixed projection animation dialog buttons
320 ctsim: Added projection graph to animation of projection collection
321 ctsim: Added single stepping to projection collection animation
322 ctsim: improved File/Properties display for projection files
323 ctsim: Added progress dialog for reconstructions
324 ctsim: Added file labels for projection and reconstruction images
325 ctsim: Made File/Properties bring up modal dialogs
326 Added reconstruction for Equilinear and Equiangular geometries
327 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
328 Separated reconstruction into Reconstructor class
329 Fixed center of detector adjustment for even number of detectors
330 Added --enable-static to generate statically linked programs
333 ctsim: Added animation of projection collection processs
334 ctsim: Added Auto Scaling for image windows
335 ctsim: Change menus from "windowing" to "display scaling"
336 Added FieldOfView and FocalLength ratio parameters to projection collection
337 Added FocalLength & FieldOfView fields to projection data files
338 Added Projection collection for Equilinear and Equiangular geometries
339 Changed name of Rowland Phantom to correct name of Shepp-Logan
340 Fixed bug in backprojection selection
343 Added RCS Id strings to executable files
344 Added RPM Spec file for RPM package creation
345 Added loading of ASCII phanthom definitions from files
346 Fixed compilation for non-SGP architectures
347 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
348 Added Filter-Generation option to reconstruction to allow direct or
349 inverse_fourier construction of filters
350 Added median to statistics and to auto-windowing
353 Added line color support to SGP
357 Finished support for dmallocxx library
358 Fixed bug in SignalFilter::convertFilterMethodNameToID()
359 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
360 G2 windows and well as WXWindows.
361 ctsim program: "Create Phantom" now shows phantom object
362 Fixed row-plot bug in if-2
363 Reworked EZPlot's multiple plot operation
366 ctsim program: improved initial size and scroll area for image
368 ctsim program: added rasterization parameters, projections parameters,
369 and reconstruction parameters dialogs
370 Moved char[] static definition from header files to c++ files
371 Completely reorganized option processing in classes to improve
372 expandability and to assist ctsim graphical user interface.
375 ctsim program: Added dialog to set minimum/maximum display levels
376 Started ctsim.tex document file
379 Fixed compiler warnings at -Wall level
380 Began work on CTSim program to be graphical front-end of all functions
381 Moved current src/*.cpp to tools/*.cpp
382 Made CTSim graphical front-end's home to be src/
385 Added highly optimized backprojection method idiff3
386 Moved comparative stats to if-2 program from ifinfo
387 Fixed image display in if2img using G2 library
388 Added column-plot and row-plot options to if-2
389 Added autoselection of analytic/calculated spatial responses to SignalFilter
390 Added frequency-based preinterpolation to SignalFilter and idiff3
391 backprojection method. Currently, this technique is still under
392 development and debugging
393 Moved graphic file writing to ImageFile class from if2img program
396 Cleaned up SignalFilter class
397 Added zeropad option to pjrec
398 Added zeropad options to html and cgi files
399 Added fourier_table and rfttw filter methods
400 Added FFTW routines to use real/half-complex transformations
403 Updated trace level processing
404 Added trace level to SignalFilter
405 Fixed magnitude vs. real output bug in FFT/Fourier filter
408 Fixed const issue with ImageFileArray
409 Fixed Array2dFile::labelsCopy()
410 Added copy constructor and assignment for Array2dFileLabel class
411 Added Timer to if-2.cpp and ifinfo.cpp
412 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
413 Added option processing for filter-method for pjrec to choose
414 between convolution, dft, & fft filtering
415 Fixed format string for EZPlot so axis labels now print
416 Added support for FFTW library
419 Rewrote Array2dFile class to be non-templated
420 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
421 Rewrote Array2dFileLabel class to make members private, added access routines
422 Removed timedate.cpp in favor of standard C library time/date functions
423 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
424 Added signature tag and creation date/time to projection files
427 Standardized string option processing by classes. All classes use character strings
428 to select options rather than numeric constants. Added fail() and failMessage()
429 methods to verify that objects are created correctly by character strings.
430 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
431 Rewrote ImageFile class
432 Started support for dmallocxx library, not finished
433 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
434 Updated ifinfo to show comparative statistics
435 Added printLabels() to Array2dFile class
436 Added printStatistics() to ImageFile class
439 Moved conversion filter name/id to Filter class
440 Moved conversion backprojection name/id to Backproj class
441 Added MPI broadcasting of strings
444 Merged proj_reconstr into class Projections
445 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
446 Code cleanup in projections.cpp
447 Moved conversion of phantom names/id to Phantom class
450 Converted projection files to C++ library with frnetorderstream
451 Converted image files to C++ library with frnetorderstream
452 Converted filter and convolution to object-oriented code
453 Changed default image file to float from double -- Changable in imagefile.h
454 Optimized image file writing on little-endian architectures
455 Updated README and INSTALL
458 Reorganized source files
459 MPI bug fixed to phm2pj.cpp
462 Reorganized include files
463 Fixed const pointers in strfuncs
466 Renamed directories, moved source files, combined source files
467 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
471 Skip versions to make version 2.0 the first fully C++ version
472 Renamed Raysums to Projections throughout files
473 Renamed Detector to Scanner
474 Converted Scanner and Projecions to full object-oriented
477 Converted Phantom and PhantomElements to Object-Oriented
478 Converted Detector to Object-Oriented
481 Improved Integer backprojection method
482 Fixed nearest neighbor to be truly nearest neighbor
483 Made linear interpolation more integer arithmetic -> speed improvement
484 Finished converting all C files to C++
485 Converted all use of malloc/free to C++ new/delete
486 Began object-oriented conversion of Phantom and Projection structures
489 Converted MPI data structures to C++ object
490 Made ImageFile directly inherit from Array2dFile
493 First C++ conversions
494 Portable IF (image file) format implemented with objects (SDF removed)
495 - Now all data files are cross-platform compatible
496 Converted from MPI to MPI++
497 Converted backprojection to object-oriented
498 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
501 Simpilifed endian handling
504 Added support for 64-bit (IA64) CPU
505 Removed broken B-spline interpolation
506 Added support for cygwin platform under Windows 2000
507 Added support for 16-bit PNG graphics
510 Added compile-time configuration of endian order
513 Modified the raysum file format to be platform independent
516 Added Microsoft VC compatibility
517 Cleaned up compilation warnings in libgraph
520 Continued conversion to ANSI C
521 Removed old CRT routines
524 Renamed pictures to phantoms, objects to phantom elements
525 Continued code cleanup
528 More code cleanup with reorganizing libraries
529 Added --log and --exp to sdf-1
530 Allowed negative numbers for window levels in CGI interface
533 Continued code cleanup
537 Better documented, coded raysum in-memory on on-disk options
540 Cleaned out library that wasn't being used by CTSim
541 Modified ctsim.cgi to read in configuration file ctsim.conf
544 First open source distribution for GNU/Linux
547 Converted to GNU/Linux
548 added MPI support via LAM library
551 Developed under MS-DOS and IBM EGA graphics