Geometric bounding box interpolation: an alternative for efficient video annotation

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• 作者：Pedro Gil-Jiménez ; Hilario Gómez-Moreno…
• 关键词：Video annotation ; Bounding box interpolation ; Projective geometry ; Cubic splines
• 刊名：EURASIP Journal on Image and Video Processing
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：2016
• 期：1
• 全文大小：3,421 KB
• 刊物主题：Signal, Image and Speech Processing;
• 出版者：Springer International Publishing
• ISSN：1687-5281

文摘

In video annotation, instead of annotating every frame of a trajectory, usually only a sparse set of annotations is provided by the user: typically its endpoints plus some key intermediate frames, interpolating the remaining annotations between these key frames in order to reduce the cost of the video labeling. While a number of video annotation tools have been proposed, some of which are freely available, and bounding box interpolation is mainly based on image processing techniques whose performance is highly dependent on image quality, occlusions, etc. We propose an alternative method to interpolate bounding box annotations, based on cubic splines and the geometric properties of the elements involved, rather than image processing techniques.