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 background and SMP processing for reconstructions,
11 scanning, and rasterization.
12 -- ctsim: Added generic threaded tasks and background manager for
13 background processing as well as taking advantage of multiple-CPU's
15 -- ctsim: Added plot t-theta sampling to projection file menu.
16 -- ctsim: Added Reconstruction with Rebinning for faster
17 divergent beam reconstructions.
18 -- ctsim: Added import and export of DICOM image files.
19 -- ctsim: Added PPM, PGM, and PNG file import to imagefile.
20 -- ctsim: Added FFT/IFFT of columns of image files.
21 -- ctsim: Added clipboard cut/copy/paste for image files.
22 -- ctsim: Added region of interest to reconstructions.
23 -- ctsim: Added Convert Rectangular Image to Projection files
24 -- ctsim: Added "Verbose Logging", "Startup Tips", and
25 "Background processes" options to Preferences dialog.
26 -- ctsim: Added plotting of projection file histograms.
27 -- plotfile: Added scattergram plot functions
28 -- ctsim: Added accelerator key for File-Properties
29 -- ctsim: Improved wireframe 3-d display to remove hidden
31 -- backprojectors.cpp: Added setting of axis extent and increment
35 -- views.cpp: Added out-of-memory checks to display for huge
36 image and projection files.
37 -- filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
38 -- imagefile.cpp: Fixed scaling factor in fftRows
39 -- imagefile.cpp: Fixed bug when performing magnitude() on real-valued
41 -- sgp.cpp: Fixed bug in drawCircle.
42 -- distribution: fixed problem with documentation files not
43 being included with the distribution (Reported by Ian Kay).
44 -- sgp.cpp/ezplot.cpp: Improved plotting with markers.
45 -- fixed ctsimtext shell when giving no parameters to function-name
46 -- phm2if, phm2pj: Updated help messages for renamed phantoms
48 3.0.3 - Released 2/20/01
50 * ctsim: Fixed core dump on Linux with OpenGL
52 * ctsim: Fixed context-sensitive help on Linux
54 * ctsim: Fixed About box on Linux
56 3.0.2 - Released 2/20/01
58 * scanner.cpp: Fixed bug when number of detectors was even.
60 * ctsim: Improved error handling when trying to convert
61 divergent projections into polar form.
63 3.0.1 - Released 2/19/01
65 * ctsim: Fixed dialog box for reconstruction so that
66 rotation angle setting will stay fixed in-between use
69 * syserror: Fixed display bug for trace messages
71 * ctsim: MSVC optimization bug work-around, compiler
74 3.0.0 - Released 2/19/01
76 * ctsim: Massive update/fix to online help and print manual.
78 * ctsim: Added context-sensitive help to dialog boxes
80 * ctsim: Reformated all dialog boxes, much nicer now.
82 * ctsim: Improved accelerator key handling
84 * global: Added Hanning filter.
86 * global: Improved default parameters to that all defaults give
89 3.0.0beta1 - Released 2/11/01
91 * ctsim: Added most-recently-used files to File menu with
92 registry storage between executions.
94 * ctsim: Hides arcane features unless enabled by Preferences dialog
96 * ctsim: Added MDI interface for Windows version and made it default for Windows.
98 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
100 * ctsim: Added graphical About box
102 * ctsim: Escape key now removes cursor lines from image file view
104 * ctsim: Added Revert to ImageFile menu
106 * ctsim: Added accelerator (hotkeys) to frames
108 * ctsim: Online help added!
110 * backprojector: Added cubic interpolation
112 * ctsim: Added icons to Frames on X-Window and MS Windows versions
114 * ctsim: Fixed tick-label placement for plots on projection and
115 reconstruction dialogs.
117 * timer.h: Add use of _ftime when compiling on MSVC
119 * global: Projection files are not compatible with previous version
120 due to new scanner definitions.
122 * global: deleted concept of field-of-view and added
123 view ratio and scan ratio concepts.
125 * ctsim: Fixed crash on shutdown bug
127 * pjinfo: Fixed bug when doing --dump and not specifing --endview
129 * phm2pj: Fixed MPI bug with broadcasting of variables
131 * ctsimtext-lam: Changes for first version to compile under lam
134 3.0.0alpha5 - Released 1/12/00
136 * ctsim: Added EZPlotDialog, used by debugging plots in
139 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
140 bug in parsing command-line parameters.
142 * views.cpp: Fixed bug in copying of labels from images to
145 * syserror.cpp: fixed reporting for fatal errors
147 * projections.cpp: fixed MSVC failure with std:: namespace
149 * procsignal.cpp: fixed bug in equiangular reconstructions
150 for frequency/inverse-fourier filtering
152 3.0.0alpha4 - Released 1/09/01
154 * ctsim: Added reset to full-intensity scale menu item
156 * ctsim: Add conversion of projections to polar plot [Thanks to
157 Ian Kay for reference and math hints in polar bilinear scaling]
159 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
162 * ctsim: imagefile labels are now copied to plotfiles
164 * ctsim: Added more analyze menuitems
166 * ctsimtext: First version. All command-line tools are now accessed
167 through this master shell. Has both command-line and interactive
170 * ctsim: Fixed initialization of min/max bug for PlotFiles
172 * ezplot: Cleaned up y-tick label placement
174 * sgp: Added better support for projection/reconstruction animation
176 3.0.0alpha3 - Released 1/02/01
178 * ctsim: Added plotting of histograms
180 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
182 * ezplot.cpp: adjusted xtick label displays for better placement
184 3.0alpha2 - Released 1/02/01
186 * ctsim: All functions of command-line tools are now in graphical ctsim
188 * ctsim: added generation of filter images
190 * ctsim: Added 2-image math functions (mul, add, div, sub)
192 * ctsim: Added export of imagefiles to graphic file formats
194 * ctsim: Added support for scaling imagefiles in new sizes
196 * ctsim: Added ability to save standard phantom definitions as
197 text files suitable for reading.
199 * ctsim: Add labels for image transformations and display of labels
200 when performing properties of images.
202 * processsignal.cpp: Fixed "off by one" bug in
203 shuffleNaturalToFourierOrder when n is even. Moved functions to
206 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
207 image math functions to complex-valued math.
209 * phantom.cpp: Added ability to save phantom files as ASCII text.
211 3.0alpha1 - Released 12/29/00
213 * Added PlotFile class to system, used by if2 and ctsim for row
214 and column plots and comparison plots
216 * ctsim: Added image comparison statistics and image subtraction
218 * ctsim: Added plotting of rows & columns with y-axis scaling
220 * ctsim: Added row and column plot comparisons between two image
223 * ctsim: Added "Process" menu to image file display with math
224 functions. Added 2-dimensional inverse Fourier to math
225 functions. Added support for complex (real/imaginary) images.
227 * mathfuncs.cpp: Reworked statistics algorithm to share between
228 imagefile and plotfile classes.
230 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
231 nsamples > 2. Added generic mage math functions, moved from
232 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
235 * array2dfile.cpp: Added code to support complex (real/imaginary)
238 * if1: Updated to handle error conditions, such as sqrt of a
239 negative number. Converted to use new ImageFile math functions.
241 * if2: Updated to output plot files and use new ImageFile class
244 * if1: Updated to use new ImageFile class math functions
246 * ezplot: Reworked to better store colors/linestyles/symbols with
247 individual curves. Improved display of labels and ticks. Updated
248 to use POL class member variable. Updated to more C++ conventions.
250 * pol: converted to C++ class. Extracted HashTable to separate
253 * sgp: Added linestyle settings
256 First Microsoft Windows GUI version
257 Modifications for Microsoft Visual C++ compilation.
258 Improved pjinfo to output binary headers and view data, useful
259 when manually compiling phantoms that vary during projection
260 process. Thanks to Ian Kay for idea and code submission.
261 Improved sorting to find median in ImageFile::statistics
262 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
263 Changed reconstruction dialog to fix onto smaller screens
264 Fixed display of plotting in Projection views
265 Improved animation displays for Projections and Reconstructions
266 Changed code to explicitly use std:: namespace rather than
267 "namespace using std" statements
268 Fixed reconstruction scaling bug introduced in 2.0.6
269 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
272 Fixed minor compilation problem with procsignal.h
274 Fixed bug when simulating projections and Trace == CONSOLE
275 Fixed scaling bug when performing redundant rotations around object
278 Improved compilation on RedHat 7
279 Changed some of ANSI C header files to C++ header files
280 Removed README.RedHat7
283 Added documentation for --geometry setting
284 Added README.RedHat7 document
287 Fixed bug in generation of binary PGM files
288 Fixed MPI compilation bug in phm2pj.cpp
289 Inverted y-axis output for pj2if (bug alert from Ian Kay)
292 Additions to man pages (Ian Kay)
293 Fix problem with reading of ASCII phantom files (Ian Kay)
296 Fixed syntax error in fftw configuration
297 Slight modifications to support gcc v2.9.6
300 Version 2.0.0 released!
301 ctsim: Added Window menu to Main frame
302 ctsim: Disabled not support reconstruction method
303 Fixed obscure bug in sys_error
304 Fixed compilation in mingw environment not present
305 Fixed compilation in non-graphical environments
308 ctsim: Added animation of reconstruction
309 ctsim: Added saving of dialog parameters for Projection & Reconstruction
310 ctsim: Added progress dialog for rasterization of phantom
311 ctsim: used setpriority to set lower priority
312 ctsim: fixed pReconstruct not being deleted causing scaling problem
313 ctsim: fixed projection animation dialog buttons
316 ctsim: Added projection graph to animation of projection collection
317 ctsim: Added single stepping to projection collection animation
318 ctsim: improved File/Properties display for projection files
319 ctsim: Added progress dialog for reconstructions
320 ctsim: Added file labels for projection and reconstruction images
321 ctsim: Made File/Properties bring up modal dialogs
322 Added reconstruction for Equilinear and Equiangular geometries
323 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
324 Separated reconstruction into Reconstructor class
325 Fixed center of detector adjustment for even number of detectors
326 Added --enable-static to generate statically linked programs
329 ctsim: Added animation of projection collection processs
330 ctsim: Added Auto Scaling for image windows
331 ctsim: Change menus from "windowing" to "display scaling"
332 Added FieldOfView and FocalLength ratio parameters to projection collection
333 Added FocalLength & FieldOfView fields to projection data files
334 Added Projection collection for Equilinear and Equiangular geometries
335 Changed name of Rowland Phantom to correct name of Shepp-Logan
336 Fixed bug in backprojection selection
339 Added RCS Id strings to executable files
340 Added RPM Spec file for RPM package creation
341 Added loading of ASCII phanthom definitions from files
342 Fixed compilation for non-SGP architectures
343 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
344 Added Filter-Generation option to reconstruction to allow direct or
345 inverse_fourier construction of filters
346 Added median to statistics and to auto-windowing
349 Added line color support to SGP
353 Finished support for dmallocxx library
354 Fixed bug in SignalFilter::convertFilterMethodNameToID()
355 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
356 G2 windows and well as WXWindows.
357 ctsim program: "Create Phantom" now shows phantom object
358 Fixed row-plot bug in if-2
359 Reworked EZPlot's multiple plot operation
362 ctsim program: improved initial size and scroll area for image
364 ctsim program: added rasterization parameters, projections parameters,
365 and reconstruction parameters dialogs
366 Moved char[] static definition from header files to c++ files
367 Completely reorganized option processing in classes to improve
368 expandability and to assist ctsim graphical user interface.
371 ctsim program: Added dialog to set minimum/maximum display levels
372 Started ctsim.tex document file
375 Fixed compiler warnings at -Wall level
376 Began work on CTSim program to be graphical front-end of all functions
377 Moved current src/*.cpp to tools/*.cpp
378 Made CTSim graphical front-end's home to be src/
381 Added highly optimized backprojection method idiff3
382 Moved comparative stats to if-2 program from ifinfo
383 Fixed image display in if2img using G2 library
384 Added column-plot and row-plot options to if-2
385 Added autoselection of analytic/calculated spatial responses to SignalFilter
386 Added frequency-based preinterpolation to SignalFilter and idiff3
387 backprojection method. Currently, this technique is still under
388 development and debugging
389 Moved graphic file writing to ImageFile class from if2img program
392 Cleaned up SignalFilter class
393 Added zeropad option to pjrec
394 Added zeropad options to html and cgi files
395 Added fourier_table and rfttw filter methods
396 Added FFTW routines to use real/half-complex transformations
399 Updated trace level processing
400 Added trace level to SignalFilter
401 Fixed magnitude vs. real output bug in FFT/Fourier filter
404 Fixed const issue with ImageFileArray
405 Fixed Array2dFile::labelsCopy()
406 Added copy constructor and assignment for Array2dFileLabel class
407 Added Timer to if-2.cpp and ifinfo.cpp
408 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
409 Added option processing for filter-method for pjrec to choose
410 between convolution, dft, & fft filtering
411 Fixed format string for EZPlot so axis labels now print
412 Added support for FFTW library
415 Rewrote Array2dFile class to be non-templated
416 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
417 Rewrote Array2dFileLabel class to make members private, added access routines
418 Removed timedate.cpp in favor of standard C library time/date functions
419 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
420 Added signature tag and creation date/time to projection files
423 Standardized string option processing by classes. All classes use character strings
424 to select options rather than numeric constants. Added fail() and failMessage()
425 methods to verify that objects are created correctly by character strings.
426 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
427 Rewrote ImageFile class
428 Started support for dmallocxx library, not finished
429 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
430 Updated ifinfo to show comparative statistics
431 Added printLabels() to Array2dFile class
432 Added printStatistics() to ImageFile class
435 Moved conversion filter name/id to Filter class
436 Moved conversion backprojection name/id to Backproj class
437 Added MPI broadcasting of strings
440 Merged proj_reconstr into class Projections
441 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
442 Code cleanup in projections.cpp
443 Moved conversion of phantom names/id to Phantom class
446 Converted projection files to C++ library with frnetorderstream
447 Converted image files to C++ library with frnetorderstream
448 Converted filter and convolution to object-oriented code
449 Changed default image file to float from double -- Changable in imagefile.h
450 Optimized image file writing on little-endian architectures
451 Updated README and INSTALL
454 Reorganized source files
455 MPI bug fixed to phm2pj.cpp
458 Reorganized include files
459 Fixed const pointers in strfuncs
462 Renamed directories, moved source files, combined source files
463 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
467 Skip versions to make version 2.0 the first fully C++ version
468 Renamed Raysums to Projections throughout files
469 Renamed Detector to Scanner
470 Converted Scanner and Projecions to full object-oriented
473 Converted Phantom and PhantomElements to Object-Oriented
474 Converted Detector to Object-Oriented
477 Improved Integer backprojection method
478 Fixed nearest neighbor to be truly nearest neighbor
479 Made linear interpolation more integer arithmetic -> speed improvement
480 Finished converting all C files to C++
481 Converted all use of malloc/free to C++ new/delete
482 Began object-oriented conversion of Phantom and Projection structures
485 Converted MPI data structures to C++ object
486 Made ImageFile directly inherit from Array2dFile
489 First C++ conversions
490 Portable IF (image file) format implemented with objects (SDF removed)
491 - Now all data files are cross-platform compatible
492 Converted from MPI to MPI++
493 Converted backprojection to object-oriented
494 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
497 Simpilifed endian handling
500 Added support for 64-bit (IA64) CPU
501 Removed broken B-spline interpolation
502 Added support for cygwin platform under Windows 2000
503 Added support for 16-bit PNG graphics
506 Added compile-time configuration of endian order
509 Modified the raysum file format to be platform independent
512 Added Microsoft VC compatibility
513 Cleaned up compilation warnings in libgraph
516 Continued conversion to ANSI C
517 Removed old CRT routines
520 Renamed pictures to phantoms, objects to phantom elements
521 Continued code cleanup
524 More code cleanup with reorganizing libraries
525 Added --log and --exp to sdf-1
526 Allowed negative numbers for window levels in CGI interface
529 Continued code cleanup
533 Better documented, coded raysum in-memory on on-disk options
536 Cleaned out library that wasn't being used by CTSim
537 Modified ctsim.cgi to read in configuration file ctsim.conf
540 First open source distribution for GNU/Linux
543 Converted to GNU/Linux
544 added MPI support via LAM library
547 Developed under MS-DOS and IBM EGA graphics