279 search results - page 22 / 56 » Watermarking of MPEG-4 Videos |
ICIP
2002
IEEE
14 years 9 months ago
2002
IEEE
This paper presents a system for video object generation and selective encoding with applications in surveillance, mobile videophones, and automotive industry. Object tracking and...
VCIP
2000
2000
Three-dimensional shape-adaptive discrete wavelet transforms for efficient object-based video coding
13 years 8 months ago
In this paper, we present an object-based coding scheme using three-dimensional shape-adaptive discrete wavelet transforms (SA-DWT). Rather than straightforward extension of 2D SA...
PCM
2001
Springer
13 years 11 months ago
2001
Springer
In this paper, a new adaptive watermarking scheme for uncompressed and compressed video is presented. The proposed method embeds the watermark in DC components by quantizing DC coe...
ICIP
2002
IEEE
14 years 9 months ago
2002
IEEE
In this paper, a comparison between an objective quality measure and the perceived mean annoyance values of watermarked videos is presented. A psychophysical experiment has been p...
ICIP
2004
IEEE
14 years 9 months ago
2004
IEEE
DCT-based CODECs such as MPEG-4 Visual and H.263 "skip" many macroblocks during encoding of typical video sequences (i.e. no coded data is transmitted for these macroblo...