| Summary: | 碩士 === 國立臺灣科技大學 === 資訊工程系 === 107 === There are many traffic accidents every year, most of which are only property damaged accidents. Because it happens quite frequently, the police need to spend a considerable amount of time every day dealing with such accidents. At this time, if there is a way to record the scene of an accident quickly for the police, it will save the police a lot of time and let them have more time to deal with other more urgent situations. If the parties or expert witnesses can even use it, the car can be removed before the police arrive at the scene to prevent traffic jams. This saves everyone's waiting time, and we can have more self-preserved evidences to protect our rights.
Due to the universality and lightweight of today's panoramic cameras, this paper proposes a special way of recording scenes, using panoramic photography to create traffic accident plans and panoramic navigation. Our system uses a panoramic camera that can be operated with a smartphone to quickly generate a 360-degree panoramic view. With the GPS coordinates and setting the north orientation, the scenes taken at several different locations are presented as a panoramic tour like Google Street View. Also, it cloud stitch a series of different scenes into an overlooking view of the accident scene. Then we can directly measure the distances between the points of impact and other locations on the plan, and draw some information on it, such as distances and driving directions of cars. After giving the reference scale length, the system can measure the distance between the impact point and other positions by using the feature that the ground deformation on the plan is small and thus can be directly measured. Finally, we can save the floor plan and navigation of panorama for later viewing. We also provide the ability to extract panoramic images of still pictures from panoramic video, and propose an operational process specifications that speeds up shooting and increase success rate of stitching.
The main contributions are proposing a new way of recording traffic accidents, panoramic scenes navigation by using GPS and user-designated northern direction, a novel way of generating the floor plan, drawing lines and measuring distance on the stitched floor plan, supporting automatic resolution of panoramas from a video, a set of easy and fast systematic operational process specifications, and a heuristic way to select shooting positions.
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