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» Adaptive Coding of DCT Coefficients by Golomb-Rice Codes
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ICMCS
2009
IEEE
139views Multimedia» more  ICMCS 2009»
14 years 7 months ago
Compressed-domain temporal adaptation-resilient watermarking for H.264 video authentication
In this paper we present a DCT domain watermarking approach for H.264/AVC video coding standard. This scheme is resilient to compressed-domain temporal adaptation. A cryptographic...
Sharmeen Shahabuddin, Razib Iqbal, Shervin Shirmoh...
ICMCS
2007
IEEE
163views Multimedia» more  ICMCS 2007»
15 years 3 months ago
Detecting Digital Image Forgeries by Measuring Inconsistencies of Blocking Artifact
Digital images can be forged easily with today’s widely available image processing software. In this paper, we describe a passive approach to detect digital forgeries by checkin...
Shuiming Ye, Qibin Sun, Ee-Chien Chang
ICIP
2007
IEEE
15 years 3 months ago
Lifting-Based Directional DCT-Like Transform for Image Coding
Traditional 2D DCT implemented by separable 1D transform in horizontal and vertical directions does not take image orientation features in a local window into account. To improve ...
Hao Xu, Jizheng Xu, Feng Wu
ICIP
2008
IEEE
15 years 11 months ago
Estimation of optimum coding redundancy and frequency domain analysis of attacks for YASS - a randomized block based hiding sche
Our recently introduced JPEG steganographic method called Yet Another Steganographic Scheme (YASS) can resist blind steganalysis by embedding data in the discrete cosine transform...
Anindya Sarkar, Lakshmanan Nataraj, B. S. Manjunat...
ICIP
2007
IEEE
15 years 11 months ago
Adaptive Hash-Based Side Information Exploitation for Efficient Wyner-Ziv Video Coding
Wyner-Ziv video coding is a lossy source coding paradigm where the video statistics are exploited, partially or totally at the decoder. The side information represents a noisy ver...
Fernando Pereira, João Ascenso