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SpriteCam: virtual camera control using sprite

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Abstract

Editing or browsing video based on spatial content without distortion or cropping has been challenging because of providing unavailable information (view) in a single frame. Virtual camera control enables the user to view the video from her perspective by using camera functions such as pan, tilt, and zoom on a recorded video. In this paper, we propose our SpriteCam system that provides virtual camera controls by first generating the background sprite or mosaic of the video. We provide the theoretical framework and then explain how pan, tilt, and zoom operations are applied using the sprite. SpriteCam allows centralizing objects, aspect ratio conversion, and fixing the camera view without distortion or information loss for videos which sprite can be generated.

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Acknowledgments

This material is based upon work supported by the National Science Foundation under Grant No. 0812307.

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Authors and Affiliations

  1. Computer Science Department, University of Alabama in Huntsville, Huntsville, AL, 35899, USA

    Yi Chen & Ramazan S. Aygün

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  1. Yi Chen
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  2. Ramazan S. Aygün
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Correspondence to Ramazan S. Aygün.

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Chen, Y., Aygün, R.S. SpriteCam: virtual camera control using sprite. Multimed Tools Appl 74, 1067–1089 (2015). https://doi.org/10.1007/s11042-013-1711-6

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