1 May 8, 2000 Version 3.5.2
2 * configure: improved CTN (DICOM) installation search
4 May 5, 2000 Version 3.5.1
8 * ctsim: Added tips to be displayed at startup and via the help menu.
9 * ctsim: Added center-detector concept. Allow for detector array
10 to be any arbitrary distance from center of scanner. As a result,
11 projection files are not incompatible with previous version of
13 * ctsim: Added threaded tasks and background manager for
14 background processing as well as taking advantage of multiple-CPU's
15 on SMP systems. (Microsoft Windows only)
16 * ctsim: Added plot t-theta sampling to projection file menu.
17 * ctsim: Added Reconstruction with Rebinning for faster
18 divergent beam reconstructions.
19 * ctsim: Added import and export of DICOM image files.
20 * ctsim: Added PPM, PGM, and PNG file import to imagefile.
21 * ctsim: Added FFT/IFFT of columns of image files.
22 * ctsim: Added clipboard cut/copy/paste for image files.
23 * ctsim: Added region of interest to reconstructions.
24 * ctsim: Added Convert Rectangular Image to Projection files
25 * ctsim: Added "Verbose Logging", "Startup Tips", and
26 "Background processes" options to Preferences dialog.
27 * ctsim: Added plotting of projection file histograms.
28 * plotfile: Added scattergram plot functions
29 * ctsim: Added accelerator key for File-Properties
30 * ctsim: Improved wireframe 3-d display to remove hidden
32 * backprojectors.cpp: Added setting of axis extent and increment
34 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
35 projection data files.
39 * views.cpp: reduced calls to progress bar update, significant speedup
40 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
41 not being displayed on Unix platforms.
42 * views.cpp: Added out-of-memory checks to display for huge
43 image and projection files.
44 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
45 * imagefile.cpp: Fixed scaling factor in fftRows
46 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
48 * sgp.cpp: Fixed bug in drawCircle.
49 * distribution: fixed problem with documentation files not
50 being included with the distribution (Reported by Ian Kay).
51 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
52 * fixed ctsimtext shell when giving no parameters to function-name
53 * phm2if, phm2pj: Updated help messages for renamed phantoms
55 3.0.3 - Released 2/20/01
57 * ctsim: Fixed core dump on Linux with OpenGL
59 * ctsim: Fixed context-sensitive help on Linux
61 * ctsim: Fixed About box on Linux
63 3.0.2 - Released 2/20/01
65 * scanner.cpp: Fixed bug when number of detectors was even.
67 * ctsim: Improved error handling when trying to convert
68 divergent projections into polar form.
70 3.0.1 - Released 2/19/01
72 * ctsim: Fixed dialog box for reconstruction so that
73 rotation angle setting will stay fixed in-between use
76 * syserror: Fixed display bug for trace messages
78 * ctsim: MSVC optimization bug work-around, compiler
81 3.0.0 - Released 2/19/01
83 * ctsim: Massive update/fix to online help and print manual.
85 * ctsim: Added context-sensitive help to dialog boxes
87 * ctsim: Reformated all dialog boxes, much nicer now.
89 * ctsim: Improved accelerator key handling
91 * global: Added Hanning filter.
93 * global: Improved default parameters to that all defaults give
96 3.0.0beta1 - Released 2/11/01
98 * ctsim: Added most-recently-used files to File menu with
99 registry storage between executions.
101 * ctsim: Hides arcane features unless enabled by Preferences dialog
103 * ctsim: Added MDI interface for Windows version and made it default for Windows.
105 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
107 * ctsim: Added graphical About box
109 * ctsim: Escape key now removes cursor lines from image file view
111 * ctsim: Added Revert to ImageFile menu
113 * ctsim: Added accelerator (hotkeys) to frames
115 * ctsim: Online help added!
117 * backprojector: Added cubic interpolation
119 * ctsim: Added icons to Frames on X-Window and MS Windows versions
121 * ctsim: Fixed tick-label placement for plots on projection and
122 reconstruction dialogs.
124 * timer.h: Add use of _ftime when compiling on MSVC
126 * global: Projection files are not compatible with previous version
127 due to new scanner definitions.
129 * global: deleted concept of field-of-view and added
130 view ratio and scan ratio concepts.
132 * ctsim: Fixed crash on shutdown bug
134 * pjinfo: Fixed bug when doing --dump and not specifing --endview
136 * phm2pj: Fixed MPI bug with broadcasting of variables
138 * ctsimtext-lam: Changes for first version to compile under lam
141 3.0.0alpha5 - Released 1/12/00
143 * ctsim: Added EZPlotDialog, used by debugging plots in
146 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
147 bug in parsing command-line parameters.
149 * views.cpp: Fixed bug in copying of labels from images to
152 * syserror.cpp: fixed reporting for fatal errors
154 * projections.cpp: fixed MSVC failure with std:: namespace
156 * procsignal.cpp: fixed bug in equiangular reconstructions
157 for frequency/inverse-fourier filtering
159 3.0.0alpha4 - Released 1/09/01
161 * ctsim: Added reset to full-intensity scale menu item
163 * ctsim: Add conversion of projections to polar plot [Thanks to
164 Ian Kay for reference and math hints in polar bilinear scaling]
166 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
169 * ctsim: imagefile labels are now copied to plotfiles
171 * ctsim: Added more analyze menuitems
173 * ctsimtext: First version. All command-line tools are now accessed
174 through this master shell. Has both command-line and interactive
177 * ctsim: Fixed initialization of min/max bug for PlotFiles
179 * ezplot: Cleaned up y-tick label placement
181 * sgp: Added better support for projection/reconstruction animation
183 3.0.0alpha3 - Released 1/02/01
185 * ctsim: Added plotting of histograms
187 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
189 * ezplot.cpp: adjusted xtick label displays for better placement
191 3.0alpha2 - Released 1/02/01
193 * ctsim: All functions of command-line tools are now in graphical ctsim
195 * ctsim: added generation of filter images
197 * ctsim: Added 2-image math functions (mul, add, div, sub)
199 * ctsim: Added export of imagefiles to graphic file formats
201 * ctsim: Added support for scaling imagefiles in new sizes
203 * ctsim: Added ability to save standard phantom definitions as
204 text files suitable for reading.
206 * ctsim: Add labels for image transformations and display of labels
207 when performing properties of images.
209 * processsignal.cpp: Fixed "off by one" bug in
210 shuffleNaturalToFourierOrder when n is even. Moved functions to
213 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
214 image math functions to complex-valued math.
216 * phantom.cpp: Added ability to save phantom files as ASCII text.
218 3.0alpha1 - Released 12/29/00
220 * Added PlotFile class to system, used by if2 and ctsim for row
221 and column plots and comparison plots
223 * ctsim: Added image comparison statistics and image subtraction
225 * ctsim: Added plotting of rows & columns with y-axis scaling
227 * ctsim: Added row and column plot comparisons between two image
230 * ctsim: Added "Process" menu to image file display with math
231 functions. Added 2-dimensional inverse Fourier to math
232 functions. Added support for complex (real/imaginary) images.
234 * mathfuncs.cpp: Reworked statistics algorithm to share between
235 imagefile and plotfile classes.
237 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
238 nsamples > 2. Added generic mage math functions, moved from
239 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
242 * array2dfile.cpp: Added code to support complex (real/imaginary)
245 * if1: Updated to handle error conditions, such as sqrt of a
246 negative number. Converted to use new ImageFile math functions.
248 * if2: Updated to output plot files and use new ImageFile class
251 * if1: Updated to use new ImageFile class math functions
253 * ezplot: Reworked to better store colors/linestyles/symbols with
254 individual curves. Improved display of labels and ticks. Updated
255 to use POL class member variable. Updated to more C++ conventions.
257 * pol: converted to C++ class. Extracted HashTable to separate
260 * sgp: Added linestyle settings
263 First Microsoft Windows GUI version
264 Modifications for Microsoft Visual C++ compilation.
265 Improved pjinfo to output binary headers and view data, useful
266 when manually compiling phantoms that vary during projection
267 process. Thanks to Ian Kay for idea and code submission.
268 Improved sorting to find median in ImageFile::statistics
269 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
270 Changed reconstruction dialog to fix onto smaller screens
271 Fixed display of plotting in Projection views
272 Improved animation displays for Projections and Reconstructions
273 Changed code to explicitly use std:: namespace rather than
274 "namespace using std" statements
275 Fixed reconstruction scaling bug introduced in 2.0.6
276 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
279 Fixed minor compilation problem with procsignal.h
281 Fixed bug when simulating projections and Trace == CONSOLE
282 Fixed scaling bug when performing redundant rotations around object
285 Improved compilation on RedHat 7
286 Changed some of ANSI C header files to C++ header files
287 Removed README.RedHat7
290 Added documentation for --geometry setting
291 Added README.RedHat7 document
294 Fixed bug in generation of binary PGM files
295 Fixed MPI compilation bug in phm2pj.cpp
296 Inverted y-axis output for pj2if (bug alert from Ian Kay)
299 Additions to man pages (Ian Kay)
300 Fix problem with reading of ASCII phantom files (Ian Kay)
303 Fixed syntax error in fftw configuration
304 Slight modifications to support gcc v2.9.6
307 Version 2.0.0 released!
308 ctsim: Added Window menu to Main frame
309 ctsim: Disabled not support reconstruction method
310 Fixed obscure bug in sys_error
311 Fixed compilation in mingw environment not present
312 Fixed compilation in non-graphical environments
315 ctsim: Added animation of reconstruction
316 ctsim: Added saving of dialog parameters for Projection & Reconstruction
317 ctsim: Added progress dialog for rasterization of phantom
318 ctsim: used setpriority to set lower priority
319 ctsim: fixed pReconstruct not being deleted causing scaling problem
320 ctsim: fixed projection animation dialog buttons
323 ctsim: Added projection graph to animation of projection collection
324 ctsim: Added single stepping to projection collection animation
325 ctsim: improved File/Properties display for projection files
326 ctsim: Added progress dialog for reconstructions
327 ctsim: Added file labels for projection and reconstruction images
328 ctsim: Made File/Properties bring up modal dialogs
329 Added reconstruction for Equilinear and Equiangular geometries
330 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
331 Separated reconstruction into Reconstructor class
332 Fixed center of detector adjustment for even number of detectors
333 Added --enable-static to generate statically linked programs
336 ctsim: Added animation of projection collection processs
337 ctsim: Added Auto Scaling for image windows
338 ctsim: Change menus from "windowing" to "display scaling"
339 Added FieldOfView and FocalLength ratio parameters to projection collection
340 Added FocalLength & FieldOfView fields to projection data files
341 Added Projection collection for Equilinear and Equiangular geometries
342 Changed name of Rowland Phantom to correct name of Shepp-Logan
343 Fixed bug in backprojection selection
346 Added RCS Id strings to executable files
347 Added RPM Spec file for RPM package creation
348 Added loading of ASCII phanthom definitions from files
349 Fixed compilation for non-SGP architectures
350 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
351 Added Filter-Generation option to reconstruction to allow direct or
352 inverse_fourier construction of filters
353 Added median to statistics and to auto-windowing
356 Added line color support to SGP
360 Finished support for dmallocxx library
361 Fixed bug in SignalFilter::convertFilterMethodNameToID()
362 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
363 G2 windows and well as WXWindows.
364 ctsim program: "Create Phantom" now shows phantom object
365 Fixed row-plot bug in if-2
366 Reworked EZPlot's multiple plot operation
369 ctsim program: improved initial size and scroll area for image
371 ctsim program: added rasterization parameters, projections parameters,
372 and reconstruction parameters dialogs
373 Moved char[] static definition from header files to c++ files
374 Completely reorganized option processing in classes to improve
375 expandability and to assist ctsim graphical user interface.
378 ctsim program: Added dialog to set minimum/maximum display levels
379 Started ctsim.tex document file
382 Fixed compiler warnings at -Wall level
383 Began work on CTSim program to be graphical front-end of all functions
384 Moved current src/*.cpp to tools/*.cpp
385 Made CTSim graphical front-end's home to be src/
388 Added highly optimized backprojection method idiff3
389 Moved comparative stats to if-2 program from ifinfo
390 Fixed image display in if2img using G2 library
391 Added column-plot and row-plot options to if-2
392 Added autoselection of analytic/calculated spatial responses to SignalFilter
393 Added frequency-based preinterpolation to SignalFilter and idiff3
394 backprojection method. Currently, this technique is still under
395 development and debugging
396 Moved graphic file writing to ImageFile class from if2img program
399 Cleaned up SignalFilter class
400 Added zeropad option to pjrec
401 Added zeropad options to html and cgi files
402 Added fourier_table and rfttw filter methods
403 Added FFTW routines to use real/half-complex transformations
406 Updated trace level processing
407 Added trace level to SignalFilter
408 Fixed magnitude vs. real output bug in FFT/Fourier filter
411 Fixed const issue with ImageFileArray
412 Fixed Array2dFile::labelsCopy()
413 Added copy constructor and assignment for Array2dFileLabel class
414 Added Timer to if-2.cpp and ifinfo.cpp
415 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
416 Added option processing for filter-method for pjrec to choose
417 between convolution, dft, & fft filtering
418 Fixed format string for EZPlot so axis labels now print
419 Added support for FFTW library
422 Rewrote Array2dFile class to be non-templated
423 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
424 Rewrote Array2dFileLabel class to make members private, added access routines
425 Removed timedate.cpp in favor of standard C library time/date functions
426 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
427 Added signature tag and creation date/time to projection files
430 Standardized string option processing by classes. All classes use character strings
431 to select options rather than numeric constants. Added fail() and failMessage()
432 methods to verify that objects are created correctly by character strings.
433 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
434 Rewrote ImageFile class
435 Started support for dmallocxx library, not finished
436 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
437 Updated ifinfo to show comparative statistics
438 Added printLabels() to Array2dFile class
439 Added printStatistics() to ImageFile class
442 Moved conversion filter name/id to Filter class
443 Moved conversion backprojection name/id to Backproj class
444 Added MPI broadcasting of strings
447 Merged proj_reconstr into class Projections
448 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
449 Code cleanup in projections.cpp
450 Moved conversion of phantom names/id to Phantom class
453 Converted projection files to C++ library with frnetorderstream
454 Converted image files to C++ library with frnetorderstream
455 Converted filter and convolution to object-oriented code
456 Changed default image file to float from double -- Changable in imagefile.h
457 Optimized image file writing on little-endian architectures
458 Updated README and INSTALL
461 Reorganized source files
462 MPI bug fixed to phm2pj.cpp
465 Reorganized include files
466 Fixed const pointers in strfuncs
469 Renamed directories, moved source files, combined source files
470 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
474 Skip versions to make version 2.0 the first fully C++ version
475 Renamed Raysums to Projections throughout files
476 Renamed Detector to Scanner
477 Converted Scanner and Projecions to full object-oriented
480 Converted Phantom and PhantomElements to Object-Oriented
481 Converted Detector to Object-Oriented
484 Improved Integer backprojection method
485 Fixed nearest neighbor to be truly nearest neighbor
486 Made linear interpolation more integer arithmetic -> speed improvement
487 Finished converting all C files to C++
488 Converted all use of malloc/free to C++ new/delete
489 Began object-oriented conversion of Phantom and Projection structures
492 Converted MPI data structures to C++ object
493 Made ImageFile directly inherit from Array2dFile
496 First C++ conversions
497 Portable IF (image file) format implemented with objects (SDF removed)
498 - Now all data files are cross-platform compatible
499 Converted from MPI to MPI++
500 Converted backprojection to object-oriented
501 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
504 Simpilifed endian handling
507 Added support for 64-bit (IA64) CPU
508 Removed broken B-spline interpolation
509 Added support for cygwin platform under Windows 2000
510 Added support for 16-bit PNG graphics
513 Added compile-time configuration of endian order
516 Modified the raysum file format to be platform independent
519 Added Microsoft VC compatibility
520 Cleaned up compilation warnings in libgraph
523 Continued conversion to ANSI C
524 Removed old CRT routines
527 Renamed pictures to phantoms, objects to phantom elements
528 Continued code cleanup
531 More code cleanup with reorganizing libraries
532 Added --log and --exp to sdf-1
533 Allowed negative numbers for window levels in CGI interface
536 Continued code cleanup
540 Better documented, coded raysum in-memory on on-disk options
543 Cleaned out library that wasn't being used by CTSim
544 Modified ctsim.cgi to read in configuration file ctsim.conf
547 First open source distribution for GNU/Linux
550 Converted to GNU/Linux
551 added MPI support via LAM library
554 Developed under MS-DOS and IBM EGA graphics