[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [39518] branches/soc-2011-tomato: Camera tracking integration
Sergey Sharybin
g.ulairi at gmail.com
Thu Aug 18 13:10:11 CEST 2011
Revision: 39518
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=39518
Author: nazgul
Date: 2011-08-18 11:10:10 +0000 (Thu, 18 Aug 2011)
Log Message:
-----------
Camera tracking integration
===========================
Stop SAD tracker when error becomes too high.
Maximal allowed error value is controlled in Tracking Settings panel.
I haven't been able to find value which will work for most of cases
so it's now quite stupid value of 0. Currently values of 2-6 gives
quite nice result, but it depends on footage.
Upcoming changes from libmv side related on returning normalized SAD
would help here. Until this, please set max_sad manually.
Modified Paths:
--------------
branches/soc-2011-tomato/extern/libmv/libmv-capi.cpp
branches/soc-2011-tomato/release/scripts/startup/bl_ui/space_clip.py
branches/soc-2011-tomato/source/blender/blenkernel/intern/tracking.c
branches/soc-2011-tomato/source/blender/makesdna/DNA_tracking_types.h
branches/soc-2011-tomato/source/blender/makesrna/intern/rna_tracking.c
Modified: branches/soc-2011-tomato/extern/libmv/libmv-capi.cpp
===================================================================
--- branches/soc-2011-tomato/extern/libmv/libmv-capi.cpp 2011-08-18 09:14:27 UTC (rev 39517)
+++ branches/soc-2011-tomato/extern/libmv/libmv-capi.cpp 2011-08-18 11:10:10 UTC (rev 39518)
@@ -327,14 +327,15 @@
int libmv_SADTrackerTrack(unsigned char *pattern, unsigned char *image, int stride,
int width, int height, double *x, double *y)
{
+ int result;
float x2, y2;
- libmv::Track(pattern, image, stride, width, height, &x2, &y2);
+ result = libmv::Track(pattern, image, stride, width, height, &x2, &y2);
*x= x2;
*y= y2;
- return 1;
+ return result;
}
/* ************ Tracks ************ */
Modified: branches/soc-2011-tomato/release/scripts/startup/bl_ui/space_clip.py
===================================================================
--- branches/soc-2011-tomato/release/scripts/startup/bl_ui/space_clip.py 2011-08-18 09:14:27 UTC (rev 39517)
+++ branches/soc-2011-tomato/release/scripts/startup/bl_ui/space_clip.py 2011-08-18 11:10:10 UTC (rev 39518)
@@ -519,6 +519,10 @@
settings = clip.tracking.settings
layout.prop(settings, "tracker")
+
+ if settings.tracker == "SAD":
+ layout.prop(settings, "max_sad")
+
layout.prop(settings, "speed")
layout.prop(settings, "frames_limit")
Modified: branches/soc-2011-tomato/source/blender/blenkernel/intern/tracking.c
===================================================================
--- branches/soc-2011-tomato/source/blender/blenkernel/intern/tracking.c 2011-08-18 09:14:27 UTC (rev 39517)
+++ branches/soc-2011-tomato/source/blender/blenkernel/intern/tracking.c 2011-08-18 11:10:10 UTC (rev 39518)
@@ -156,6 +156,16 @@
MovieTrackingMarker marker;
float pat[2]= {5.5f, 5.5f}, search[2]= {80.5f, 80.5f}; /* TODO: move to default setting? */
+ /* XXX: not very nice to have such check here, but it will prevent
+ complaints about bad default settings for new markers */
+ if(tracking->settings.tracker==TRACKER_SAD) {
+ pat[0]= 8.f;
+ pat[1]= 8.f;
+
+ search[0]= 32.f;
+ search[1]= 32.f;
+ }
+
pat[0] /= (float)width;
pat[1] /= (float)height;
@@ -466,6 +476,7 @@
float *patch; /* keyframed patch */
/* ** SAD tracker ** */
+ int patsize[2]; /* size of pattern (currently only 16x16 due to libmv side) */
unsigned char *pattern; /* keyframed pattern */
#endif
} TrackContext;
@@ -934,6 +945,7 @@
}
else if(context->settings.tracker==TRACKER_SAD) {
unsigned char *image_new;
+ int sad, error;
if(track_context->pattern==NULL) {
unsigned char *image;
@@ -948,7 +960,11 @@
warp[0][2]= pos[0];
warp[1][2]= pos[1];
- track_context->pattern= MEM_callocN(sizeof(unsigned char)*16*16, "trackking pattern");
+ /* pattern size is hardcoded to 16x16px in libmv */
+ track_context->patsize[0]= 16;
+ track_context->patsize[1]= 16;
+
+ track_context->pattern= MEM_callocN(sizeof(unsigned char)*track_context->patsize[0]*track_context->patsize[1], "trackking pattern");
libmv_SADSamplePattern(image, width, warp, track_context->pattern);
MEM_freeN(image);
@@ -957,8 +973,11 @@
image_new= acquire_search_bytebuf(ibuf_new, track, marker, &width, &height, pos, origin);
- tracked= libmv_SADTrackerTrack(track_context->pattern, image_new, width, width, height, &x2, &y2);
+ sad= libmv_SADTrackerTrack(track_context->pattern, image_new, width, width, height, &x2, &y2);
+ error= sad/(track_context->patsize[0]*track_context->patsize[1]);
+ tracked= error<=context->settings.maxsad;
+
MEM_freeN(image_new);
}
Modified: branches/soc-2011-tomato/source/blender/makesdna/DNA_tracking_types.h
===================================================================
--- branches/soc-2011-tomato/source/blender/makesdna/DNA_tracking_types.h 2011-08-18 09:14:27 UTC (rev 39517)
+++ branches/soc-2011-tomato/source/blender/makesdna/DNA_tracking_types.h 2011-08-18 11:10:10 UTC (rev 39518)
@@ -101,10 +101,15 @@
typedef struct MovieTrackingSettings {
short tracker; /* tracker to use */
- short pad;
+ /* ** common tracker settings ** */
short speed; /* speed of tracking */
short frames_limit; /* number of frames to be tarcked during single tracking session (if TRACKING_FRAMES_LIMIT is set) */
+
+ /* ** SAD tracker settings ** */
+ short maxsad; /* max value of sad which is still treated as successful tracking */
+
+ /* ** reconstructionsettings ** */
int keyframe1, keyframe2; /* two keyframes for reconstrution initialization */
/* ** tool settings ** */
Modified: branches/soc-2011-tomato/source/blender/makesrna/intern/rna_tracking.c
===================================================================
--- branches/soc-2011-tomato/source/blender/makesrna/intern/rna_tracking.c 2011-08-18 09:14:27 UTC (rev 39517)
+++ branches/soc-2011-tomato/source/blender/makesrna/intern/rna_tracking.c 2011-08-18 11:10:10 UTC (rev 39518)
@@ -245,6 +245,13 @@
RNA_def_property_enum_items(prop, tracker_items);
RNA_def_property_ui_text(prop, "tracker", "Tracking algorithm to use");
+ /* limit frames */
+ prop= RNA_def_property(srna, "max_sad", PROP_INT, PROP_NONE);
+ RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+ RNA_def_property_int_sdna(prop, NULL, "maxsad");
+ RNA_def_property_range(prop, 0, 255);
+ RNA_def_property_ui_text(prop, "Max SAD", "Maximum value of SAD whichis still treated as successful tracking");
+
/* speed */
prop= RNA_def_property(srna, "speed", PROP_ENUM, PROP_NONE);
RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
More information about the Bf-blender-cvs
mailing list