Just another desperate try to get something connected with OpenCV compiled under Windows. AndroidExperimental looked promising at the beginning. But of course everything just works on Linux without problems. The step where get_ndk_toolchain_linux.sh is referenced won't work on Windows and actually you don't need to do everything in there if you already have the NDK.… Continue reading android-experimental + android-cmake (on Windows)
Category: Thesis
[Note] No up-to-date AR libraries?
Somehow there doesn't seem to be good AR libraries which are either working well or even up to date. It looks like there where some buzz between 2007 and 2009. Quiet some people developed libraries and applications using marker-based AR. Like the ARToolkit which was last updated in 2007. The successor (or at least an… Continue reading [Note] No up-to-date AR libraries?
Review: „Multiple Target Detection and Tracking with Guaranteed Framerates on Mobile Phones“
The described related work tracks motion using optical flow algorithms. It seems that those produce satisfying results but not yet cover the full potential of a AR tracking system. Others use interest-point based algorithms which are commonly known as very computational expensive. SIFT descriptors are probably the most used ones although they might belong the… Continue reading Review: „Multiple Target Detection and Tracking with Guaranteed Framerates on Mobile Phones“
javacv
JavaCV is a wrapper for a couple of libraries, including OpenCV. They also provide a pre-compiled OpenCV for Android. Looks promising. Will take a look at it. Wonder if this slows down the application somehow, because they are some more method calls because of the wrapper stuff I guess. But if it speeds up the… Continue reading javacv
OpenCV-Android
At github I found an optimized version of OpenCV for Android. Different to the original Android version this one can be compiled with the Android NDK (except with those creepy work-arounds described at opencv/AndroidTrunk). Unfortunately, the build process took like hours: because some variables needed by the linker aren't set on Windows (but obviously on… Continue reading OpenCV-Android