15 search results - page 3 / 3 » An Improved Digital Watermarking Scheme in the Domain of Vec... |
TIP
2002
13 years 4 months ago
2002
Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to impr...
MMSEC
2006
ACM
13 years 11 months ago
2006
ACM
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...
TCSV
2010
12 years 12 months ago
2010
Abstract--This paper proposes a no-reference quality assessment metric for digital video subject to H.264/AVC encoding. The proposed metric comprises two main steps: coding error e...
PAA
2006
13 years 5 months ago
2006
We present our studies on the application of Coupled Hidden Markov Models(CHMMs) to sports highlights extraction from broadcast video using both audio and video information. First,...
TIP
2002
13 years 4 months ago
2002
Abstract--Transcoding is a key technique for reducing the bitrate of a previously compressed video signal. A high transcoding ratio may result in an unacceptable picture quality wh...