Intelligent Vision Systems for Landmark-Based Vehicle Navigation
Wen Wu, Jie Yang, Xilin Chen · IGI Global eBooks · 2011
Human drivers often use landmarks for navigation. For example, we tell people to turn left after the second traffic light and to make a right at Starbucks. In our daily life, a landmark can be anything that is easily recognizable and used for giving navigation directions, such as a sign or a building. It has been proposed that current navigation systems can be made more effective and safer by incorporating landmarks as key navigation cues. Especially, landmarks support navigation in unfamiliar environments. In this chapter, we aim to describe technologies for two intelligent vision systems for landmark-based car navigation: (1) labeling street landmarks in images with minimal human effort; we have proposed a semi-supervised learning framework for the task; (2) automatically detecting text on road signs from video; the proposed framework takes advantage of spatio-temporal information in video and fuses partial information for detecting text from frame to frame.