VidGeo系統是將地理資訊與多媒體檔案相互結合，可用來播放以及管理內嵌衛星定位資訊的影片檔案。在日常的應用上，VidGeo系統結合使用者拍攝的影像以及地理座標資訊，使影片播放時能同步顯示拍攝影片時行經之路徑，提升拍攝之短片的共享與記憶回顧能力。本系統除支援播放外亦提供多媒體檔案的編輯暨剪接能力，編輯之成果亦能保留對應之內嵌資訊。本論文研究如何處理地理資訊以及播放的技術，其中包括：(1)將衛星定位資訊內嵌到多媒體檔案中以及如何正常的播放多媒體檔案，並有效的運用地理資訊。(2)對衛星定位資訊做平滑化修正與合理顯示，(3)設計適當介面來顯示影片以及對應的地理資訊，(4)內嵌地理資訊座標之多媒體的編輯系統建置。本論文將以實際的資料，說明如何操作地理資料的管理與影片檔案的顯示介面，並利用平滑化方法將顯示畫面做適當修飾。

We develop a system, called VidGeo, to embed GPS coordinates into
video clips and simultaneously display corresponding trails on a map
during video playback. Through videos with embedded GPS information,
users' sharing experience can be greatly enhanced. This thesis
develops techniques to handle videos with embedded GPS tracks,
including (1) Embedding GPS information into different video formats;
(2) Compressing GPS information and smoothing GPS tracks; (3)
Designing UI to simultaneously display videos and maps; (4) Processing
GPS tracks during video editing. We also build a prototype system to
demonstrate our results.

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