Visual saliency in MPEG-4 AVC video stream

M. Ammar; M. Mitrea; M. Hasnaoui; P. Le Callet

doi:10.1117/12.2079407

17 March 2015 Visual saliency in MPEG-4 AVC video stream

M. Ammar, M. Mitrea, M. Hasnaoui, P. Le Callet

Proceedings Volume 9394, Human Vision and Electronic Imaging XX; 93940X (2015) https://doi.org/10.1117/12.2079407
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

Visual saliency maps already proved their efficiency in a large variety of image/video communication application fields, covering from selective compression and channel coding to watermarking. Such saliency maps are generally based on different visual characteristics (like color, intensity, orientation, motion,…) computed from the pixel representation of the visual content. This paper resumes and extends our previous work devoted to the definition of a saliency map solely extracted from the MPEG-4 AVC stream syntax elements. The MPEG-4 AVC saliency map thus defined is a fusion of static and dynamic map. The static saliency map is in its turn a combination of intensity, color and orientation features maps. Despite the particular way in which all these elementary maps are computed, the fusion techniques allowing their combination plays a critical role in the final result and makes the object of the proposed study. A total of 48 fusion formulas (6 for combining static features and, for each of them, 8 to combine static to dynamic features) are investigated. The performances of the obtained maps are evaluated on a public database organized at IRCCyN, by computing two objective metrics: the Kullback-Leibler divergence and the area under curve.

Citation Download Citation

M. Ammar, M. Mitrea, M. Hasnaoui, and P. Le Callet "Visual saliency in MPEG-4 AVC video stream", Proc. SPIE 9394, Human Vision and Electronic Imaging XX, 93940X (17 March 2015); https://doi.org/10.1117/12.2079407

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