In-car Tour Guidance in Outdoor Park Areas Based on Augmented Reality Techniques Using an Omni-camera

• Main Authors: Wei, Yen-Cheng, 衛彥成
• Other Authors: Tsai, Wen-Hsiang
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/99474748423470790213

碩士 === 國立交通大學 === 多媒體工程研究所 === 101 === A new tour guidance system for use in a vehicle driven in park areas based on augmented reality and omni-vision techniques is proposed. A passenger in the vehicle can get tour guidance information from a passenger-view image generated by the system and displayed on a passenger-held mobile device. The passenger-view image simulates what is seen by the passenger through the front vehicle window. Nearby building information is augmented on the passenger-view image for convenient inspection. To implement the system, an environment map is generated in the learning phase after driving the vehicle through a pre-selected path. The map includes along-path vertical-line features in the environment (light poles, building edges, etc.) which can be detected for vehicle localization. A technique for detecting vertical-line features appearing in acquired omni-images and a method for vehicle localization are proposed, by which detected line features are analyzed to compute the vehicle position by the longest common subsequence algorithm. Also proposed are a technique for generating the passenger-view image from acquired omni-images as well as a method for augmenting building information on correct positions in the passenger-view image using the building positions yielded by the vehicle localization process. Good experimental results showing the feasibility of the proposed system are also included.