Indoor localization is important for a variety of applications such as emergency response, shopping guide, and location-based services. Localization based on smartphone inertial sensors is one of the most widely-used indoor localization techniques since it can provide continuous and real-time locations without requiring additional infrastructure. However, it suffers from the accumulated error problem, which can be addressed by using sensory landmarks. In this paper, we first introduce the concept of sensory landmarks, and then show how different types of sensory landmarks can be detected. The method for estimating the locations of sensory landmarks is also given.
['Fuqiang Gu', 'Kourosh Khoshelham', 'Jianga Shang', 'Fangwen Yu']
Sensory landmarks for indoor localization