Using the example code

We can find the example code for SfM with the supporting material of this book. We will now see how we can build, run, and make use of it. The code makes use of CMake, a cross-platform build environment similar to Maven or SCons. We should also make sure we have all the following prerequisites to build the application:

• OpenCV v2.3 or higher

• PCL v1.6 or higher

• SSBA v3.0 or higher

First we must set up the build environment. To that end, we may create a folder named build in which all build-related files will go; we will now assume all command-line operations are within the build/folder, although the process is similar (up to the locations of the files) even if not using the build folder.

We should make sure CMake can find SSBA and PCL. If PCL was installed properly, there should not be a problem; however, we must set the correct location to find SSBA's prebuilt binaries via the -DSSBA_LIBRARY_DIR=… build parameter. If we are using Windows as the operating system, we can use...