  This is the preprint version of our paper on ICONIP. Outdoor augmented
reality geographic information system (ARGIS) is the hot application of
augmented reality over recent years. This paper concludes the key solutions of
ARGIS, designs the mobile augmented reality pipeline prospect system (ARPPS),
and respectively realizes the machine vision based pipeline prospect system
(MVBPPS) and the sensor based pipeline prospect system (SBPPS). With the
MVBPPS's realization, this paper studies the neural network based 3D features
matching method.
