1 May 29, 2000 Version 3.5.2
2 * configure: improved CTN (DICOM) installation search
3 * src/ctsim.cpp: Fixed initial image size with import command
4 * misc. files: Add support for g++ 3.04 compiler
7 May 5, 2000 Version 3.5.1
11 * ctsim: Added tips to be displayed at startup and via the help menu.
12 * ctsim: Added center-detector concept. Allow for detector array
13 to be any arbitrary distance from center of scanner. As a result,
14 projection files are not incompatible with previous version of
16 * ctsim: Added threaded tasks and background manager for
17 background processing as well as taking advantage of multiple-CPU's
18 on SMP systems. (Microsoft Windows only)
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 * backprojectors.cpp: Added setting of axis extent and increment
37 * projections.cpp: Can read and reconstruct SIEMENS AR.STAR DICOM
38 projection data files.
42 * views.cpp: reduced calls to progress bar update, significant speedup
43 * views.cpp,ctsim.cpp: Fixed bug with window frames sometimes
44 not being displayed on Unix platforms.
45 * views.cpp: Added out-of-memory checks to display for huge
46 image and projection files.
47 * filter.cpp: Fixed Hanning parameter to be 0.5 rather than 0.54
48 * imagefile.cpp: Fixed scaling factor in fftRows
49 * imagefile.cpp: Fixed bug when performing magnitude() on real-valued
51 * sgp.cpp: Fixed bug in drawCircle.
52 * distribution: fixed problem with documentation files not
53 being included with the distribution (Reported by Ian Kay).
54 * sgp.cpp/ezplot.cpp: Improved plotting with markers.
55 * fixed ctsimtext shell when giving no parameters to function-name
56 * phm2if, phm2pj: Updated help messages for renamed phantoms
58 3.0.3 - Released 2/20/01
60 * ctsim: Fixed core dump on Linux with OpenGL
62 * ctsim: Fixed context-sensitive help on Linux
64 * ctsim: Fixed About box on Linux
66 3.0.2 - Released 2/20/01
68 * scanner.cpp: Fixed bug when number of detectors was even.
70 * ctsim: Improved error handling when trying to convert
71 divergent projections into polar form.
73 3.0.1 - Released 2/19/01
75 * ctsim: Fixed dialog box for reconstruction so that
76 rotation angle setting will stay fixed in-between use
79 * syserror: Fixed display bug for trace messages
81 * ctsim: MSVC optimization bug work-around, compiler
84 3.0.0 - Released 2/19/01
86 * ctsim: Massive update/fix to online help and print manual.
88 * ctsim: Added context-sensitive help to dialog boxes
90 * ctsim: Reformated all dialog boxes, much nicer now.
92 * ctsim: Improved accelerator key handling
94 * global: Added Hanning filter.
96 * global: Improved default parameters to that all defaults give
99 3.0.0beta1 - Released 2/11/01
101 * ctsim: Added most-recently-used files to File menu with
102 registry storage between executions.
104 * ctsim: Hides arcane features unless enabled by Preferences dialog
106 * ctsim: Added MDI interface for Windows version and made it default for Windows.
108 * ctsim: Added 3-D wireframe view of images (uses OpenGL)
110 * ctsim: Added graphical About box
112 * ctsim: Escape key now removes cursor lines from image file view
114 * ctsim: Added Revert to ImageFile menu
116 * ctsim: Added accelerator (hotkeys) to frames
118 * ctsim: Online help added!
120 * backprojector: Added cubic interpolation
122 * ctsim: Added icons to Frames on X-Window and MS Windows versions
124 * ctsim: Fixed tick-label placement for plots on projection and
125 reconstruction dialogs.
127 * timer.h: Add use of _ftime when compiling on MSVC
129 * global: Projection files are not compatible with previous version
130 due to new scanner definitions.
132 * global: deleted concept of field-of-view and added
133 view ratio and scan ratio concepts.
135 * ctsim: Fixed crash on shutdown bug
137 * pjinfo: Fixed bug when doing --dump and not specifing --endview
139 * phm2pj: Fixed MPI bug with broadcasting of variables
141 * ctsimtext-lam: Changes for first version to compile under lam
144 3.0.0alpha5 - Released 1/12/00
146 * ctsim: Added EZPlotDialog, used by debugging plots in
149 * ctsimtext: Fixed bugs for MSVC and with empty input lines. Fixed
150 bug in parsing command-line parameters.
152 * views.cpp: Fixed bug in copying of labels from images to
155 * syserror.cpp: fixed reporting for fatal errors
157 * projections.cpp: fixed MSVC failure with std:: namespace
159 * procsignal.cpp: fixed bug in equiangular reconstructions
160 for frequency/inverse-fourier filtering
162 3.0.0alpha4 - Released 1/09/01
164 * ctsim: Added reset to full-intensity scale menu item
166 * ctsim: Add conversion of projections to polar plot [Thanks to
167 Ian Kay for reference and math hints in polar bilinear scaling]
169 * ctsim: improve bilinear scaling of image size [Thanks to Ian Kay
172 * ctsim: imagefile labels are now copied to plotfiles
174 * ctsim: Added more analyze menuitems
176 * ctsimtext: First version. All command-line tools are now accessed
177 through this master shell. Has both command-line and interactive
180 * ctsim: Fixed initialization of min/max bug for PlotFiles
182 * ezplot: Cleaned up y-tick label placement
184 * sgp: Added better support for projection/reconstruction animation
186 3.0.0alpha3 - Released 1/02/01
188 * ctsim: Added plotting of histograms
190 * imagefile.cpp: fixed bug in generation of 16-bit PNG images
192 * ezplot.cpp: adjusted xtick label displays for better placement
194 3.0alpha2 - Released 1/02/01
196 * ctsim: All functions of command-line tools are now in graphical ctsim
198 * ctsim: added generation of filter images
200 * ctsim: Added 2-image math functions (mul, add, div, sub)
202 * ctsim: Added export of imagefiles to graphic file formats
204 * ctsim: Added support for scaling imagefiles in new sizes
206 * ctsim: Added ability to save standard phantom definitions as
207 text files suitable for reading.
209 * ctsim: Add labels for image transformations and display of labels
210 when performing properties of images.
212 * processsignal.cpp: Fixed "off by one" bug in
213 shuffleNaturalToFourierOrder when n is even. Moved functions to
216 * imagefile.cpp: Added FFTW library to imagefile processing. Converted
217 image math functions to complex-valued math.
219 * phantom.cpp: Added ability to save phantom files as ASCII text.
221 3.0alpha1 - Released 12/29/00
223 * Added PlotFile class to system, used by if2 and ctsim for row
224 and column plots and comparison plots
226 * ctsim: Added image comparison statistics and image subtraction
228 * ctsim: Added plotting of rows & columns with y-axis scaling
230 * ctsim: Added row and column plot comparisons between two image
233 * ctsim: Added "Process" menu to image file display with math
234 functions. Added 2-dimensional inverse Fourier to math
235 functions. Added support for complex (real/imaginary) images.
237 * mathfuncs.cpp: Reworked statistics algorithm to share between
238 imagefile and plotfile classes.
240 * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
241 nsamples > 2. Added generic mage math functions, moved from
242 if1.cpp and if2.cpp to imagefile.cpp. Added support complex
245 * array2dfile.cpp: Added code to support complex (real/imaginary)
248 * if1: Updated to handle error conditions, such as sqrt of a
249 negative number. Converted to use new ImageFile math functions.
251 * if2: Updated to output plot files and use new ImageFile class
254 * if1: Updated to use new ImageFile class math functions
256 * ezplot: Reworked to better store colors/linestyles/symbols with
257 individual curves. Improved display of labels and ticks. Updated
258 to use POL class member variable. Updated to more C++ conventions.
260 * pol: converted to C++ class. Extracted HashTable to separate
263 * sgp: Added linestyle settings
266 First Microsoft Windows GUI version
267 Modifications for Microsoft Visual C++ compilation.
268 Improved pjinfo to output binary headers and view data, useful
269 when manually compiling phantoms that vary during projection
270 process. Thanks to Ian Kay for idea and code submission.
271 Improved sorting to find median in ImageFile::statistics
272 Fixed core-dump bug in Array2dFile::labelsCopy() function (Ian Kay)
273 Changed reconstruction dialog to fix onto smaller screens
274 Fixed display of plotting in Projection views
275 Improved animation displays for Projections and Reconstructions
276 Changed code to explicitly use std:: namespace rather than
277 "namespace using std" statements
278 Fixed reconstruction scaling bug introduced in 2.0.6
279 Renamed if2img to ifexport, if-1 to if1, if-2 to if2
282 Fixed minor compilation problem with procsignal.h
284 Fixed bug when simulating projections and Trace == CONSOLE
285 Fixed scaling bug when performing redundant rotations around object
288 Improved compilation on RedHat 7
289 Changed some of ANSI C header files to C++ header files
290 Removed README.RedHat7
293 Added documentation for --geometry setting
294 Added README.RedHat7 document
297 Fixed bug in generation of binary PGM files
298 Fixed MPI compilation bug in phm2pj.cpp
299 Inverted y-axis output for pj2if (bug alert from Ian Kay)
302 Additions to man pages (Ian Kay)
303 Fix problem with reading of ASCII phantom files (Ian Kay)
306 Fixed syntax error in fftw configuration
307 Slight modifications to support gcc v2.9.6
310 Version 2.0.0 released!
311 ctsim: Added Window menu to Main frame
312 ctsim: Disabled not support reconstruction method
313 Fixed obscure bug in sys_error
314 Fixed compilation in mingw environment not present
315 Fixed compilation in non-graphical environments
318 ctsim: Added animation of reconstruction
319 ctsim: Added saving of dialog parameters for Projection & Reconstruction
320 ctsim: Added progress dialog for rasterization of phantom
321 ctsim: used setpriority to set lower priority
322 ctsim: fixed pReconstruct not being deleted causing scaling problem
323 ctsim: fixed projection animation dialog buttons
326 ctsim: Added projection graph to animation of projection collection
327 ctsim: Added single stepping to projection collection animation
328 ctsim: improved File/Properties display for projection files
329 ctsim: Added progress dialog for reconstructions
330 ctsim: Added file labels for projection and reconstruction images
331 ctsim: Made File/Properties bring up modal dialogs
332 Added reconstruction for Equilinear and Equiangular geometries
333 Changed theta to be -PI/2 to make compliant with Kak-Slaney formulas
334 Separated reconstruction into Reconstructor class
335 Fixed center of detector adjustment for even number of detectors
336 Added --enable-static to generate statically linked programs
339 ctsim: Added animation of projection collection processs
340 ctsim: Added Auto Scaling for image windows
341 ctsim: Change menus from "windowing" to "display scaling"
342 Added FieldOfView and FocalLength ratio parameters to projection collection
343 Added FocalLength & FieldOfView fields to projection data files
344 Added Projection collection for Equilinear and Equiangular geometries
345 Changed name of Rowland Phantom to correct name of Shepp-Logan
346 Fixed bug in backprojection selection
349 Added RCS Id strings to executable files
350 Added RPM Spec file for RPM package creation
351 Added loading of ASCII phanthom definitions from files
352 Fixed compilation for non-SGP architectures
353 Decomposed SignalFilter class into ProcessSignal and SignalFilter classes
354 Added Filter-Generation option to reconstruction to allow direct or
355 inverse_fourier construction of filters
356 Added median to statistics and to auto-windowing
359 Added line color support to SGP
363 Finished support for dmallocxx library
364 Fixed bug in SignalFilter::convertFilterMethodNameToID()
365 Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
366 G2 windows and well as WXWindows.
367 ctsim program: "Create Phantom" now shows phantom object
368 Fixed row-plot bug in if-2
369 Reworked EZPlot's multiple plot operation
372 ctsim program: improved initial size and scroll area for image
374 ctsim program: added rasterization parameters, projections parameters,
375 and reconstruction parameters dialogs
376 Moved char[] static definition from header files to c++ files
377 Completely reorganized option processing in classes to improve
378 expandability and to assist ctsim graphical user interface.
381 ctsim program: Added dialog to set minimum/maximum display levels
382 Started ctsim.tex document file
385 Fixed compiler warnings at -Wall level
386 Began work on CTSim program to be graphical front-end of all functions
387 Moved current src/*.cpp to tools/*.cpp
388 Made CTSim graphical front-end's home to be src/
391 Added highly optimized backprojection method idiff3
392 Moved comparative stats to if-2 program from ifinfo
393 Fixed image display in if2img using G2 library
394 Added column-plot and row-plot options to if-2
395 Added autoselection of analytic/calculated spatial responses to SignalFilter
396 Added frequency-based preinterpolation to SignalFilter and idiff3
397 backprojection method. Currently, this technique is still under
398 development and debugging
399 Moved graphic file writing to ImageFile class from if2img program
402 Cleaned up SignalFilter class
403 Added zeropad option to pjrec
404 Added zeropad options to html and cgi files
405 Added fourier_table and rfttw filter methods
406 Added FFTW routines to use real/half-complex transformations
409 Updated trace level processing
410 Added trace level to SignalFilter
411 Fixed magnitude vs. real output bug in FFT/Fourier filter
414 Fixed const issue with ImageFileArray
415 Fixed Array2dFile::labelsCopy()
416 Added copy constructor and assignment for Array2dFileLabel class
417 Added Timer to if-2.cpp and ifinfo.cpp
418 Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
419 Added option processing for filter-method for pjrec to choose
420 between convolution, dft, & fft filtering
421 Fixed format string for EZPlot so axis labels now print
422 Added support for FFTW library
425 Rewrote Array2dFile class to be non-templated
426 Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
427 Rewrote Array2dFileLabel class to make members private, added access routines
428 Removed timedate.cpp in favor of standard C library time/date functions
429 Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
430 Added signature tag and creation date/time to projection files
433 Standardized string option processing by classes. All classes use character strings
434 to select options rather than numeric constants. Added fail() and failMessage()
435 methods to verify that objects are created correctly by character strings.
436 Hid C++ assignment and copy constructors in classes that should not have assignment/copy
437 Rewrote ImageFile class
438 Started support for dmallocxx library, not finished
439 Added G.T. Herman image comparision statistics to ifinfo (see imagefile.cpp)
440 Updated ifinfo to show comparative statistics
441 Added printLabels() to Array2dFile class
442 Added printStatistics() to ImageFile class
445 Moved conversion filter name/id to Filter class
446 Moved conversion backprojection name/id to Backproj class
447 Added MPI broadcasting of strings
450 Merged proj_reconstr into class Projections
451 Used auto_ptr in Projections::reconstruct to make sure destructor is always called
452 Code cleanup in projections.cpp
453 Moved conversion of phantom names/id to Phantom class
456 Converted projection files to C++ library with frnetorderstream
457 Converted image files to C++ library with frnetorderstream
458 Converted filter and convolution to object-oriented code
459 Changed default image file to float from double -- Changable in imagefile.h
460 Optimized image file writing on little-endian architectures
461 Updated README and INSTALL
464 Reorganized source files
465 MPI bug fixed to phm2pj.cpp
468 Reorganized include files
469 Fixed const pointers in strfuncs
472 Renamed directories, moved source files, combined source files
473 to change from 6 libraries to 3 libraries (libctsim, libctsupport,
477 Skip versions to make version 2.0 the first fully C++ version
478 Renamed Raysums to Projections throughout files
479 Renamed Detector to Scanner
480 Converted Scanner and Projecions to full object-oriented
483 Converted Phantom and PhantomElements to Object-Oriented
484 Converted Detector to Object-Oriented
487 Improved Integer backprojection method
488 Fixed nearest neighbor to be truly nearest neighbor
489 Made linear interpolation more integer arithmetic -> speed improvement
490 Finished converting all C files to C++
491 Converted all use of malloc/free to C++ new/delete
492 Began object-oriented conversion of Phantom and Projection structures
495 Converted MPI data structures to C++ object
496 Made ImageFile directly inherit from Array2dFile
499 First C++ conversions
500 Portable IF (image file) format implemented with objects (SDF removed)
501 - Now all data files are cross-platform compatible
502 Converted from MPI to MPI++
503 Converted backprojection to object-oriented
504 Removed MTX from libkmath as no longer need -- replaced with C++ matrices
507 Simpilifed endian handling
510 Added support for 64-bit (IA64) CPU
511 Removed broken B-spline interpolation
512 Added support for cygwin platform under Windows 2000
513 Added support for 16-bit PNG graphics
516 Added compile-time configuration of endian order
519 Modified the raysum file format to be platform independent
522 Added Microsoft VC compatibility
523 Cleaned up compilation warnings in libgraph
526 Continued conversion to ANSI C
527 Removed old CRT routines
530 Renamed pictures to phantoms, objects to phantom elements
531 Continued code cleanup
534 More code cleanup with reorganizing libraries
535 Added --log and --exp to sdf-1
536 Allowed negative numbers for window levels in CGI interface
539 Continued code cleanup
543 Better documented, coded raysum in-memory on on-disk options
546 Cleaned out library that wasn't being used by CTSim
547 Modified ctsim.cgi to read in configuration file ctsim.conf
550 First open source distribution for GNU/Linux
553 Converted to GNU/Linux
554 added MPI support via LAM library
557 Developed under MS-DOS and IBM EGA graphics