Securing Media Content with Steganographic Encoding
First Claim
1. A method comprising:
- receiving audio or image content via a network, the audio or image content comprising auxiliary information steganographically encoded therein;
decoding the auxiliary information from received audio or image content, the auxiliary information pointing to handling criteria associated with the audio or image content;
obtaining the handling criteria associated with the audio or image content; and
carrying out an action based at least in part on the handling criteria associated with the audio or image content.
6 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates generally to steganographically encoded audio or image content (e.g., which may include video). In one implementation, a method is provided included: receiving audio or image content via a network, the audio or image content comprising auxiliary information steganographically encoded therein; decoding the auxiliary information from received audio or image content, the auxiliary information pointing to handling criteria associated with the audio or image content; obtaining the handling criteria associated with the audio or image content; and carrying out an action based at least in part on the handling criteria associated with the audio or image content. Other implementations are provided and claimed as well.
-
Citations
35 Claims
-
1. A method comprising:
-
receiving audio or image content via a network, the audio or image content comprising auxiliary information steganographically encoded therein;
decoding the auxiliary information from received audio or image content, the auxiliary information pointing to handling criteria associated with the audio or image content;
obtaining the handling criteria associated with the audio or image content; and
carrying out an action based at least in part on the handling criteria associated with the audio or image content. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A registry system comprising:
-
an input to receive audio or image content via a network, the audio or image content comprising auxiliary information steganographically encoded therein;
a decoder to decode the auxiliary information from received audio or image content, the auxiliary information pointing to handling criteria associated with the audio or image content; and
a processor to;
i) obtain at least a portion of the handling criteria with reference to at least the auxiliary information, and ii) carry out an action based at least in part on the portion of the handing criteria. - View Dependent Claims (7, 8, 9)
-
-
10. A method comprising:
-
receiving audio or image content via a network supporting a user community, the audio or image content comprising auxiliary information steganographically encoded therein;
decoding the auxiliary information from received audio or image content, the auxiliary information providing or pointing to a public or free use indication associated with the audio or image content;
obtaining the use indication with at least reference to the auxiliary information; and
carrying out an action based at least in part on the use indication associated with the audio or image content. - View Dependent Claims (11, 12)
-
-
13. A method comprising:
-
steganographically encoding an original media signal with data according to first encoding to yield an encoded media signal, the encoded media signal comprising the data encoded therein;
subjecting the encoded media signal to a transformation to determine whether encoding of the data in the encoded media signal meets predetermined criteria;
if the encoding does not meet the predetermined criteria, repeating said act of steganographically encoding and said act of subjecting until the encoding meets the predetermined criteria. - View Dependent Claims (14, 15, 16)
-
-
17. A method comprising:
-
obtaining information associated with a compression process;
altering a watermark signal with at least reference to the information;
steganographically embedding an altered watermark signal in a media signal.
-
-
18. The method of claim 18 wherein the media signal comprises video and the compression process comprises MPEG.
-
19. A method comprising:
-
obtaining a message signal;
obtaining a host signal;
filtering the host signal in accordance with anticipated compression;
obtaining a carrier signal;
combining the message signal with the carrier signal to yield an intermediate signal;
altering the filtered host signal in accordance with the intermediate signal to yield an embedded host signal. - View Dependent Claims (20, 21)
-
-
22. A method comprising:
-
obtaining a message signal;
obtaining a host signal;
determining portions of the host signal that are less likely—
relative to other portions of the host signal—
to be adversely affected by anticipated compression;
embedding the message in the host signal in determined portions of the host signal that are relatively less likely to be adversely affected by the anticipated compression. - View Dependent Claims (23)
-
-
24. The method of claim 24 wherein said act of embedding embeds the message in the host signal through altering data representing picture elements of the video.
-
25. A method comprising:
-
obtaining a media signal including a message steganographically hidden therein;
transforming the media signal to a transform domain;
in the transform domain, identifying portions of the media signal including signal errors;
filtering identified portions of the media signal to compensate for the signal errors;
inverse transforming the filtered, transformed media signal; and
analyzing the inverse, filtered, transformed media signal to obtain the message. - View Dependent Claims (26, 27, 28, 29, 30, 31)
-
-
32. A method comprising:
-
hiding plural-bit data in a media signal, said act of hiding resulting in an encoded media signal;
compressing and then decompressing the encoded media signal;
determining whether hiding of the data in the encoded media signal meets first criteria; and
iteratively repeating said act of hiding and said act of compressing and decompressing until said act of determining determines whether the hiding of the data in the encoded media signal meets the first criteria. - View Dependent Claims (33)
-
-
34. A method comprising:
-
decompressing a compressed encoded signal, the encoded signal comprising plural-bit information hidden therein;
determining whether the plural-bit information is sufficiently hidden in the decompressed encoded signal based on first criteria; and
embedding the plural-bit information in the decompressed encoded signal if the plural-bit information is not sufficiently hidden. - View Dependent Claims (35)
-
Specification