The locatable video: Acquisition, segmentation, retrieval

This paper proposes a new video file, which can integrate video information, audio information, as well as the spatial positioning information into a whole file. Given that the video frames have their corresponding spatial positioning information, we propose a set of methods to organize and manage locatable videos based on GIS technique, including splitting locatable video into geographic semantic features of video clips with roads and employing regular grid to build an index engine. In addition, we put forward a location-based information retrieval algorithm, with which the rapid and efficient retrieval of the video clips in the chosen region from an electronic map can be realized. Finally we develop the real-image campus tourism prototype system based on locatable videos using the north campus of Nanjing normal university as an example.