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