Derivation and quantization of robust non-local characteristics for blind watermarking
First Claim
Patent Images
1. A computer implemented method, for facilitating the protection of digital signals, the method comprising:
- obtaining a digital signal;
using quantization index modulation (QIM), detecting whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal; and
wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal.
1 Assignment
0 Petitions
Accused Products
Abstract
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
34 Citations
6 Claims
-
1. A computer implemented method, for facilitating the protection of digital signals, the method comprising:
-
obtaining a digital signal; using quantization index modulation (QIM), detecting whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal; and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal. - View Dependent Claims (2)
-
-
3. One or more tangible computer-readable media, having computer-executable instructions that, when executed by a computer, perform the acts comprising:
-
obtaining a digital signal; using quantization index modulation (QIM), detecting whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal and the non-local characteristics are representative characteristics of more than a single element of a signal; and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly sized segments of the signal. - View Dependent Claims (4)
-
-
5. A computer implemented system for facilitating the protection of digital signals, the system comprising means for performing functions comprising:
-
obtaining a digital signal; using quantization index modulation (QIM), detecting whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal and the non-local characteristics are representative characteristics of more than a single element of a signal; and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal. - View Dependent Claims (6)
-
Specification