5 -- ctsim: Added direct Fourier reconstructions (Thanks to
6 Edgar Angeles for help with understanding FFT symmetry of
9 -- ctsim: Added tips to be displayed at startup and via the help menu.
10 -- ctsim: Added center-detector concept. Allow for detector array
11 to be any arbitrary distance from center of scanner. As a result,
12 projection files are not incompatible with previous version of
14 -- ctsim: Added background and SMP processing for reconstructions,
15 scanning, and rasterization.
16 -- ctsim: Added generic threaded tasks and background manager for
17 background processing as well as taking advantage of multiple-CPU's
19 -- ctsim: Added plot t-theta sampling to projection file menu.
20 -- ctsim: Added Reconstruction with Rebinning for faster
21 divergent beam reconstructions.
22 -- ctsim: Added import and export of DICOM image files.
23 -- ctsim: Added PPM, PGM, and PNG file import to imagefile.
24 -- ctsim: Added FFT/IFFT of columns of image files.
25 -- ctsim: Added clipboard cut/copy/paste for image files.
26 -- ctsim: Added region of interest to reconstructions.
27 -- ctsim: Added Convert Rectangular Image to Projection files
28 -- ctsim: Added "Verbose Logging", "Startup Tips", and
29 "Background processes" options to Preferences dialog.
30 -- ctsim: Added plotting of projection file histograms.
31 -- plotfile: Added scattergram plot functions
32 -- ctsim: Added accelerator key for File-Properties
33 -- ctsim: Improved wireframe 3-d display to remove hidden
35 -- views.cpp: Added out of memory checks to display for huge
36 image and projection files.
37 -- backprojectors.cpp: Added setting of axis extent and increment
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.
50 3.0.3 - Released 2/20/01
52 * ctsim: Fixed core dump on Linux with OpenGL
54 * ctsim: Fixed context-sensitive help on Linux
56 * ctsim: Fixed About box on Linux
58 3.0.2 - Released 2/20/01
60 * scanner.cpp: Fixed bug when number of detectors was even.
62 * ctsim: Improved error handling when trying to convert
63 divergent projections into polar form.
65 3.0.1 - Released 2/19/01
67 * ctsim: Fixed dialog box for reconstruction so that
68 rotation angle setting will stay fixed in-between use
71 * syserror: Fixed display bug for trace messages
73 * ctsim: MSVC optimization bug work-around, compiler
76 3.0.0 - Released 2/19/01
78 * ctsim: Massive update/fix to online help and print manual.
80 * ctsim: Added context-sensitive help to dialog boxes
82 * ctsim: Reformated all dialog boxes, much nicer now.
84 * ctsim: Improved accelerator key handling
86 * global: Added Hanning filter.
88 * global: Improved default parameters to that all defaults give
91 3.0.0beta1 - Released 2/11/01
93 * ctsim: Added most-recently-used files to File menu with
94 registry storage between executions.
96 * ctsim: Hides arcane features unless enabled by Preferences dialog
98 * ctsim: Added MDI interface for Windows version and made it default for Windows.
100 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
102 * ctsim: Added graphical About box
104 * ctsim: Escape key now removes cursor lines from image file view
106 * ctsim: Added Revert to ImageFile menu
108 * ctsim: Added accelerator (hotkeys) to frames
110 * ctsim: Online help added!
112 * backprojector: Added cubic interpolation
114 * ctsim: Added icons to Frames on X-Window and MS Windows versions
116 * ctsim: Fixed tick-label placement for plots on projection and
117 reconstruction dialogs.
119 * timer.h: Add use of _ftime when compiling on MSVC
121 * global: Projection files are not compatible with previous version
122 due to new scanner definitions.
124 * global: deleted concept of field-of-view and added
125 view ratio and scan ratio concepts.
127 * ctsim: Fixed crash on shutdown bug
129 * pjinfo: Fixed bug when doing --dump and not specifing --endview
131 * phm2pj: Fixed MPI bug with broadcasting of variables
133 * ctsimtext-lam: Changes for first version to compile under lam
136 3.0.0alpha5 - Released 1/12/00
138 * ctsim: Added EZPlotDialog, used by debugging plots in
141 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
142 bug in parsing command-line parameters.
144 * views.cpp: Fixed bug in copying of labels from images to
147 * syserror.cpp: fixed reporting for fatal errors
149 * projections.cpp: fixed MSVC failure with std:: namespace
151 * procsignal.cpp: fixed bug in equiangular reconstructions
152 for frequency/inverse-fourier filtering
154 3.0.0alpha4 - Released 1/09/01
156 * ctsim: Added reset to full-intensity scale menu item
158 * ctsim: Add conversion of projections to polar plot [Thanks to
159 Ian Kay for reference and math hints in polar bilinear scaling]
161 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
164 * ctsim: imagefile labels are now copied to plotfiles
166 * ctsim: Added more analyze menuitems
168 * ctsimtext: First version. All command-line tools are now accessed
169 through this master shell. Has both command-line and interactive
172 * ctsim: Fixed initialization of min/max bug for PlotFiles
174 * ezplot: Cleaned up y-tick label placement
176 * sgp: Added better support for projection/reconstruction animation
178 3.0.0alpha3 - Released 1/02/01
180 * ctsim: Added plotting of histograms
182 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
184 * ezplot.cpp: adjusted xtick label displays for better placement
186 3.0alpha2 - Released 1/02/01
188 * ctsim: All functions of command-line tools are now in graphical ctsim
190 * ctsim: added generation of filter images
192 * ctsim: Added 2-image math functions (mul, add, div, sub)
194 * ctsim: Added export of imagefiles to graphic file formats
196 * ctsim: Added support for scaling imagefiles in new sizes
198 * ctsim: Added ability to save standard phantom definitions as
199 text files suitable for reading.
201 * ctsim: Add labels for image transformations and display of labels
202 when performing properties of images.
204 * processsignal.cpp: Fixed "off by one" bug in
205 shuffleNaturalToFourierOrder when n is even. Moved functions to
208 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
209 image math functions to complex-valued math.
211 * phantom.cpp: Added ability to save phantom files as ASCII text.
213 3.0alpha1 - Released 12/29/00
215 * Added PlotFile class to system, used by if2 and ctsim for row
216 and column plots and comparison plots
218 * ctsim: Added image comparison statistics and image subtraction
220 * ctsim: Added plotting of rows & columns with y-axis scaling
222 * ctsim: Added row and column plot comparisons between two image
225 * ctsim: Added "Process" menu to image file display with math
226 functions. Added 2-dimensional inverse Fourier to math
227 functions. Added support for complex (real/imaginary) images.
229 * mathfuncs.cpp: Reworked statistics algorithm to share between
230 imagefile and plotfile classes.
232 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
233 nsamples > 2. Added generic mage math functions, moved from
234 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
237 * array2dfile.cpp: Added code to support complex (real/imaginary)
240 * if1: Updated to handle error conditions, such as sqrt of a
241 negative number. Converted to use new ImageFile math functions.
243 * if2: Updated to output plot files and use new ImageFile class
246 * if1: Updated to use new ImageFile class math functions
248 * ezplot: Reworked to better store colors/linestyles/symbols with
249 individual curves. Improved display of labels and ticks. Updated
250 to use POL class member variable. Updated to more C++ conventions.
252 * pol: converted to C++ class. Extracted HashTable to separate
255 * sgp: Added linestyle settings
258 First Microsoft Windows GUI version
259 Modifications for Microsoft Visual C++ compilation.
260 Improved pjinfo to output binary headers and view data, useful
261 when manually compiling phantoms that vary during projection
262 process. Thanks to Ian Kay for idea and code submission.
263 Improved sorting to find median in ImageFile::statistics
264 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
265 Changed reconstruction dialog to fix onto smaller screens
266 Fixed display of plotting in Projection views
267 Improved animation displays for Projections and Reconstructions
268 Changed code to explicitly use std:: namespace rather than
269 "namespace using std" statements
270 Fixed reconstruction scaling bug introduced in 2.0.6
271 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
274 Fixed minor compilation problem with procsignal.h
276 Fixed bug when simulating projections and Trace == CONSOLE
277 Fixed scaling bug when performing redundant rotations around object
280 Improved compilation on RedHat 7
281 Changed some of ANSI C header files to C++ header files
282 Removed README.RedHat7
285 Added documentation for --geometry setting
286 Added README.RedHat7 document
289 Fixed bug in generation of binary PGM files
290 Fixed MPI compilation bug in phm2pj.cpp
291 Inverted y-axis output for pj2if (bug alert from Ian Kay)
294 Additions to man pages (Ian Kay)
295 Fix problem with reading of ASCII phantom files (Ian Kay)
298 Fixed syntax error in fftw configuration
299 Slight modifications to support gcc v2.9.6
302 Version 2.0.0 released!
303 ctsim: Added Window menu to Main frame
304 ctsim: Disabled not support reconstruction method
305 Fixed obscure bug in sys_error
306 Fixed compilation in mingw environment not present
307 Fixed compilation in non-graphical environments
310 ctsim: Added animation of reconstruction
311 ctsim: Added saving of dialog parameters for Projection & Reconstruction
312 ctsim: Added progress dialog for rasterization of phantom
313 ctsim: used setpriority to set lower priority
314 ctsim: fixed pReconstruct not being deleted causing scaling problem
315 ctsim: fixed projection animation dialog buttons
318 ctsim: Added projection graph to animation of projection collection
319 ctsim: Added single stepping to projection collection animation
320 ctsim: improved File/Properties display for projection files
321 ctsim: Added progress dialog for reconstructions
322 ctsim: Added file labels for projection and reconstruction images
323 ctsim: Made File/Properties bring up modal dialogs
324 Added reconstruction for Equilinear and Equiangular geometries
325 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
326 Separated reconstruction into Reconstructor class
327 Fixed center of detector adjustment for even number of detectors
328 Added --enable-static to generate statically linked programs
331 ctsim: Added animation of projection collection processs
332 ctsim: Added Auto Scaling for image windows
333 ctsim: Change menus from "windowing" to "display scaling"
334 Added FieldOfView and FocalLength ratio parameters to projection collection
335 Added FocalLength & FieldOfView fields to projection data files
336 Added Projection collection for Equilinear and Equiangular geometries
337 Changed name of Rowland Phantom to correct name of Shepp-Logan
338 Fixed bug in backprojection selection
341 Added RCS Id strings to executable files
342 Added RPM Spec file for RPM package creation
343 Added loading of ASCII phanthom definitions from files
344 Fixed compilation for non-SGP architectures
345 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
346 Added Filter-Generation option to reconstruction to allow direct or
347 inverse_fourier construction of filters
348 Added median to statistics and to auto-windowing
351 Added line color support to SGP
355 Finished support for dmallocxx library
356 Fixed bug in SignalFilter::convertFilterMethodNameToID()
357 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
358 G2 windows and well as WXWindows.
359 ctsim program: "Create Phantom" now shows phantom object
360 Fixed row-plot bug in if-2
361 Reworked EZPlot's multiple plot operation
364 ctsim program: improved initial size and scroll area for image
366 ctsim program: added rasterization parameters, projections parameters,
367 and reconstruction parameters dialogs
368 Moved char[] static definition from header files to c++ files
369 Completely reorganized option processing in classes to improve
370 expandability and to assist ctsim graphical user interface.
373 ctsim program: Added dialog to set minimum/maximum display levels
374 Started ctsim.tex document file
377 Fixed compiler warnings at -Wall level
378 Began work on CTSim program to be graphical front-end of all functions
379 Moved current src/*.cpp to tools/*.cpp
380 Made CTSim graphical front-end's home to be src/
383 Added highly optimized backprojection method idiff3
384 Moved comparative stats to if-2 program from ifinfo
385 Fixed image display in if2img using G2 library
386 Added column-plot and row-plot options to if-2
387 Added autoselection of analytic/calculated spatial responses to SignalFilter
388 Added frequency-based preinterpolation to SignalFilter and idiff3
389 backprojection method. Currently, this technique is still under
390 development and debugging
391 Moved graphic file writing to ImageFile class from if2img program
394 Cleaned up SignalFilter class
395 Added zeropad option to pjrec
396 Added zeropad options to html and cgi files
397 Added fourier_table and rfttw filter methods
398 Added FFTW routines to use real/half-complex transformations
401 Updated trace level processing
402 Added trace level to SignalFilter
403 Fixed magnitude vs. real output bug in FFT/Fourier filter
406 Fixed const issue with ImageFileArray
407 Fixed Array2dFile::labelsCopy()
408 Added copy constructor and assignment for Array2dFileLabel class
409 Added Timer to if-2.cpp and ifinfo.cpp
410 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
411 Added option processing for filter-method for pjrec to choose
412 between convolution, dft, & fft filtering
413 Fixed format string for EZPlot so axis labels now print
414 Added support for FFTW library
417 Rewrote Array2dFile class to be non-templated
418 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
419 Rewrote Array2dFileLabel class to make members private, added access routines
420 Removed timedate.cpp in favor of standard C library time/date functions
421 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
422 Added signature tag and creation date/time to projection files
425 Standardized string option processing by classes. All classes use character strings
426 to select options rather than numeric constants. Added fail() and failMessage()
427 methods to verify that objects are created correctly by character strings.
428 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
429 Rewrote ImageFile class
430 Started support for dmallocxx library, not finished
431 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
432 Updated ifinfo to show comparative statistics
433 Added printLabels() to Array2dFile class
434 Added printStatistics() to ImageFile class
437 Moved conversion filter name/id to Filter class
438 Moved conversion backprojection name/id to Backproj class
439 Added MPI broadcasting of strings
442 Merged proj_reconstr into class Projections
443 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
444 Code cleanup in projections.cpp
445 Moved conversion of phantom names/id to Phantom class
448 Converted projection files to C++ library with frnetorderstream
449 Converted image files to C++ library with frnetorderstream
450 Converted filter and convolution to object-oriented code
451 Changed default image file to float from double -- Changable in imagefile.h
452 Optimized image file writing on little-endian architectures
453 Updated README and INSTALL
456 Reorganized source files
457 MPI bug fixed to phm2pj.cpp
460 Reorganized include files
461 Fixed const pointers in strfuncs
464 Renamed directories, moved source files, combined source files
465 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
469 Skip versions to make version 2.0 the first fully C++ version
470 Renamed Raysums to Projections throughout files
471 Renamed Detector to Scanner
472 Converted Scanner and Projecions to full object-oriented
475 Converted Phantom and PhantomElements to Object-Oriented
476 Converted Detector to Object-Oriented
479 Improved Integer backprojection method
480 Fixed nearest neighbor to be truly nearest neighbor
481 Made linear interpolation more integer arithmetic -> speed improvement
482 Finished converting all C files to C++
483 Converted all use of malloc/free to C++ new/delete
484 Began object-oriented conversion of Phantom and Projection structures
487 Converted MPI data structures to C++ object
488 Made ImageFile directly inherit from Array2dFile
491 First C++ conversions
492 Portable IF (image file) format implemented with objects (SDF removed)
493 - Now all data files are cross-platform compatible
494 Converted from MPI to MPI++
495 Converted backprojection to object-oriented
496 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
499 Simpilifed endian handling
502 Added support for 64-bit (IA64) CPU
503 Removed broken B-spline interpolation
504 Added support for cygwin platform under Windows 2000
505 Added support for 16-bit PNG graphics
508 Added compile-time configuration of endian order
511 Modified the raysum file format to be platform independent
514 Added Microsoft VC compatibility
515 Cleaned up compilation warnings in libgraph
518 Continued conversion to ANSI C
519 Removed old CRT routines
522 Renamed pictures to phantoms, objects to phantom elements
523 Continued code cleanup
526 More code cleanup with reorganizing libraries
527 Added --log and --exp to sdf-1
528 Allowed negative numbers for window levels in CGI interface
531 Continued code cleanup
535 Better documented, coded raysum in-memory on on-disk options
538 Cleaned out library that wasn't being used by CTSim
539 Modified ctsim.cgi to read in configuration file ctsim.conf
542 First open source distribution for GNU/Linux
545 Converted to GNU/Linux
546 added MPI support via LAM library
549 Developed under MS-DOS and IBM EGA graphics