Granted Patent B2

US 12,499,187 · App. 18/450,092 · Granted Dec 16, 2025

Inventors: Saeed Ranjbar Alvar (Coquitlam, CA); Mohammad Akbari (Coquitlam, CA); Ming Xuan Yue (Richmond, CA); Yong Zhang (Richmond, CA)

Assignee: Huawei Cloud Computing Technologies Co., Ltd.

G06F21/16G06T1/0071H04L9/3247H04N21/23892H04N21/8358G06T2201/0062H04L2209/608

Abstract

Claims (70)

1 . A computer-implemented method for watermarking objects of a digital dataset, the method executable by one or more processors, the method comprising:

at a first moment in time:

acquiring a watermark message of a first size;

generating a plurality of sub-messages based on the watermark message, the plurality of sub-messages being indicative of encoded portions of the watermark message,

each of the plurality of sub-messages being different from the watermark message and having a second size, the second size being smaller than the first size;

wherein the generating the plurality of sub-messages includes:

generating a plurality of codewords using the watermark message; and

generating a first sub-message from the plurality of sub-messages using a combination of codewords from the plurality of codewords; and

generating a watermarked object by embedding a given object from the digital dataset with the first sub-message, in lieu of the watermark message.

2 . The method of claim 1 , wherein the method further comprises:

at a second moment in time after the first moment in time:

acquiring a test watermarked digital dataset including a given test watermarked object;

extracting a test sub-message from the given test watermarked object, the test sub-message having the second size;

generating a decoded watermark message using the test sub-message, the decoded watermark message being different from the test sub-message and having the first size; and

determining whether the decoded watermark message matches the watermark message.

3 . The method of claim 1 , wherein the given object is at least one of a text-based object, an audio object, and a video object.

4 . The method of claim 1 , wherein the watermark message includes at least one of textual data, audio data, and video data.

5 . The method of claim 1 , wherein the generating the plurality of sub-messages is executed by employing a pre-trained Neural Network (NN) model.

6 . The method of claim 1 , wherein

the first sub-message including:

a body portion with the combination of codewords, and

an indexing portion being unique for combination of codewords amongst other possible combinations of codewords from the plurality of codewords.

7 . The method of claim 6 , wherein the generating the plurality of sub-messages includes:

generating a second sub-message from the plurality of sub-messages using a second combination of codewords from the plurality of codewords, the second combination of codewords being different from the combination of codewords, the first sub-message including:

a second body portion with the second combination of codewords, and

a second indexing portion being unique for second combination of codewords amongst other possible combinations of codewords from the plurality of codewords;

generating a second watermarked object by embedding a second given object from the plurality of objects with the second sub-message, in lieu of the watermark message.

8 . A method of processing a watermarked digital dataset, the method executable by one or more processors, the method comprising:

at a first moment in time:

acquiring a watermark message of a first size;

generating a plurality of sub-messages based on the watermark message, the plurality of sub-messages being indicative of encoded portions of the watermark message,

each of the plurality of sub-messages being different from the watermark message and having a second size, the second size being smaller than the first size;

wherein the generating the plurality of sub-messages includes:

generating a plurality of codewords using the watermark message;

generating a first sub-message from the plurality of sub-messages using a combination of codewords from the plurality of codewords,

generating a watermarked object by embedding a given object from the digital dataset with the first sub-message, in lieu of the watermark message,

at a second moment in time after the first moment in time:

acquiring a test watermarked digital dataset including a given test watermarked object;

extracting a test sub-message from the given test watermarked object, the test sub-message having the second size;

generating a decoded watermark message using the test sub-message, the decoded watermark message being different from the test sub-message and having the first size, the first size being bigger than the second size; and

determining whether the decoded watermark message matches a stored watermark message.

9 . The method of claim 8 , wherein the method further comprises extracting a second test sub-message from a second test watermarked object from the test watermarked digital dataset and wherein the generating the decoded watermark message further includes using the second test sub-message.

10 . A system for watermarking objects of a digital dataset, the system comprising a controller and a memory storing a plurality of executable instructions which, when executed by the controller, cause the system to:

at a first moment in time:

acquire a watermark message of a first size;

generate a plurality of sub-messages based on the watermark message, the plurality of sub-messages being indicative of encoded portions of the watermark message,

each of the plurality of sub-messages being different from the watermark message and having a second size,

the second size being smaller than the first size;

wherein the system is configured to generate the plurality of sub-messges by:

generating a plurality of codewords using the watermark message; and

generating a first sub-message from the plurality of sub-messages using a combination of codewords from the plurality of codewords;

generate a watermarked object by embedding a given object from the digital dataset with the first sub-message, in lieu of the watermark message.

11 . The system of claim 10 , further configured to:

at a second moment in time after the first moment in time:

acquire a test watermarked digital dataset including a given test watermarked object;

extract a test sub-message from the given test watermarked object, the test sub-message having the second size;

generate a decoded watermark message using the test sub-message, the decoded watermark message being different from the test sub-message and having the first size; and

determining whether the decoded watermark message matches the watermark message.

12 . The system of claim 10 , wherein the given object is at least one of a text-based object, an audio object, and a video object.

13 . The system of claim 10 , wherein the watermark message includes at least one of textual data, audio data, and video data.

14 . The system of claim 10 , wherein the generating the plurality of sub-messages is executed by employing a pre-trained Neural Network (NN) model.

15 . The system of claim 10 , wherein

the first sub-message including:

a body portion with the combination of codewords, and

an indexing portion being unique for combination of codewords amongst other possible combinations of codewords from the plurality of codewords.

16 . The system of claim 15 , wherein the system is configured to generate the plurality of sub-messages by:

generating a second sub-message from the plurality of sub-messages using a second combination of codewords from the plurality of codewords, the second combination of codewords being different from the combination of codewords, the first sub-message including:

a second body portion with the second combination of codewords, and

a second indexing portion being unique for second combination of codewords amongst other possible combinations of codewords from the plurality of codewords;

generating a second watermarked object by embedding a second given object from the plurality of objects with the second sub-message, in lieu of the watermark message.

Assignments (1)

Continuity (1)

References Cited (16)