Title
Transcoding resilient video watermarking scheme based on spatio-temporal HVS and DCT
Abstract
Video transcoding is a legitimate operation widely used to modify video format in order to access the video content in the end-user's devices, which may have some limitations in the spatial and temporal resolutions, bit-rate and video coding standards. In many previous watermarking algorithms the embedded watermark is not able to survive video transcoding, because this operation is a combination of some aggressive attacks, especially when lower bit-rate coding is required in the target device. As a consequence of the transcoding operation, the embedded watermark may be lost. This paper proposes a robust video watermarking scheme against video transcoding performed on base-band domain. In order to obtain the watermark robustness against video transcoding, four criteria based on Human Visual System (HVS) are employed to embed a sufficiently robust watermark while preserving its imperceptibility. The quantization index modulation (QIM) algorithm is used to embed and detect the watermark in 2D-Discrete Cosine Transform (2D-DCT) domain. The watermark imperceptibility is evaluated by conventional peak signal to noise ratio (PSNR) and structural similarity index (SSIM), obtaining sufficiently good visual quality. Computer simulation results show the watermark robustness against video transcoding as well as common signal processing operations and intentional attacks for video sequences. Four criteria based on HVS and DCT domain are used to embed a robust watermark.We apply a quantization index modulation scheme to embed and detect the watermark.Watermark scheme is robust to transcoding video codec and low bit rate conversions.Watermark scheme is robust to signal processing and video frame-based attacks.Better performance than four recently reported video watermarking schemes.
Year
DOI
Venue
2014
10.1016/j.sigpro.2013.08.019
Signal Processing
Keywords
Field
DocType
resilient video,robust video,video format,video content,spatio-temporal hvs,video coding standard,watermark robustness,robust watermark,video transcoding,video sequence,embedded watermark,watermark imperceptibility,human visual system
Computer vision,Transcoding,Digital watermarking,Video post-processing,Computer science,Multiview Video Coding,Watermark,Video tracking,Artificial intelligence,Video denoising,Video compression picture types
Journal
Volume
Issue
ISSN
97
C
0165-1684
Citations 
PageRank 
References 
11
0.63
19
Authors
6