Automatic videoconference objects watermarking using object adapted qualified significant wavelet trees
Authors: Ntalianis, Klimis 
Kollias, Stefanos 
Tzouveli, Paraskevi 
Issue Date: 1-Jan-2003
Conference: 8th International Workshop on Visual Content Processing and Representation (VLBV 2003), 18-19 September 2003, Madrid, Spain 
Book: Visual Content Processing and Representation (VLBV 2003) 
Series: Lecture Notes in Computer Science
Abstract: 
In this paper, a fully automatic scheme for hiding digital watermarks into videoconference objects is proposed. Initially, a face and body detection module is implemented in order to provide an initial estimation of the foreground object. Next, each foreground object is decomposed using the Shape Adaptive Discrete Wavelet Transform (SA-DWT). Afterwards Object Adapted Qualified Significant Wavelet Trees (OA-QSWTs) are estimated for a pair of subbands, provided by the SA-DWT. Finally visually recognizable watermark patterns are redundantly embedded to the coefficients of the highest energy OA-QSWTs and the invert SA-DWT is applied to provide the watermarked videoconference object. Watermarked objects undergo various signal distortions and experimental results exhibit the efficiency and robustness of the proposed scheme.
ISBN: 978-3-540-20081-9
978-3-540-39798-4
ISSN: 1611-3349
DOI: 10.1007/978-3-540-39798-4_21
URI: https://uniwacris.uniwa.gr/handle/3000/2854
Type: Conference Paper
Department: Department of Business Administration 
School: School of Administrative, Economics and Social Sciences 
Affiliation: University of West Attica (UNIWA) 
Appears in Collections:Book Chapter / Κεφάλαιο Βιβλίου

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