It resolved. I googled a lot, and done the following: cd into my fg-ehci-headtracker directory PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH export PKG_CONFIG_PATH then make it ok!
2010/4/9 Siyui AliOh <sopl...@gmail.com>: > I have download the fg-ehci-headtracker, but to make, the following > errors happened: > bash-3.1# make > g++ -g -O3 -Wall `pkg-config --cflags opencv` -c ehci.cpp > Package opencv was not found in the pkg-config search path. > Perhaps you should add the directory containing `opencv.pc' > to the PKG_CONFIG_PATH environment variable > No package 'opencv' found > ehci.cpp:22:16: error: cv.h: No such file or directory > ehci.cpp:23:21: error: highgui.h: No such file or directory > ehci.cpp:42: error: expected constructor, destructor, or type > conversion before '*' token > ehci.cpp:46: error: variable or field 'loadCascade' declared void > ehci.cpp:46: error: 'CvHaarClassifierCascade' was not declared in this scope > ehci.cpp:46: error: 'cascade' was not declared in this scope > ehci.cpp:46: error: expected primary-expression before 'const' > make: *** [ehci.o] Error 1 > bash-3.1# > > I am not sure what had happend to opencv that I have just installed, > It is realy there: > /usr/local/include/opencv/ > Lots of .h files in this directory, and this: > /usr/local/share/opencv/ > some more files > how to config and use pkg-config tool to let the fgehcii program build > correctly? > Many many thanks! > > > 2010/2/28 Melchior FRANZ <mfr...@aon.at>: >> Head trackers determine the position and orientation of the computer user's >> head, and use this information to modify the view in the artificial 3D world. >> Usually, this requires a sensor (e.g. a webcam) and special markers mounted >> on a helmet or cap. This can be colored/reflective points or even (IR)LEDs. >> >> There's a (F/OSS) implementation of a head-tracker that only requires a >> webcam, without the head gear: EHCI[0] (based on OpenCV[1]). It works with >> a face detection algorithm. See the following link for a demo. It shows the >> analyzed face features on the left side, and an overlaid 3D head on the >> right side. >> >> http://www.youtube.com/watch?v=BovphSjw_tI >> >> Unfortunately, it doesn't work as well as the film implies. The guy took >> care of not turning the head too far and keeping the face rectangle nicely >> on screen. If one doesn't do that, then the orientation quickly drifts off, >> and one has to reset the tracker. >> >> Anyway, in the hope to see further EHCI improvements in the future, I've >> written an fgfs addon that uses the tracker information to control the >> pilot's view. It's a separate application that communicates via UDP socket >> with fgfs, and there are no changes to fgfs (2.0!) necessary. See the README >> for further info: >> >> $ git clone git://gitorious.org/fg-ehci-headtracker/fg-ehci-headtracker.git >> >> Maybe someone is interested in this *and* can perhaps even send me patches >> for improvements/fixes. :-) >> >> Note that the EHCI library is a bit strange (to put it politely), which >> explains some of the fg-tracker weirdness. Also note, that you have to >> use it in not too dark environment (or maybe use an IR spot, haven't tried >> that yet). And I assume you should have a dual core/cpu machine at least. >> The tracker uses quite some cpu power for image processing, so it shouldn't >> run on the same cpu/core as fgfs. >> >> m. >> >> >> PS: don't expect too much! >> >> [0] http://sourceforge.net/projects/opencvlibrary/ >> [1] http://code.google.com/p/ehci/ >> >> ------------------------------------------------------------------------------ >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> Flightgear-users mailing list >> Flightgear-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/flightgear-users >> > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Flightgear-users mailing list Flightgear-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-users
