CN114756828A - Copyright protection method for acquiring multimedia data characteristic information - Google Patents

Abstract

The invention discloses a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps: s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information; s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string; s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string; s4: information encryption: integrating the obtained auxiliary character strings into the main character strings to obtain mixed character strings; s5: character hiding: and hiding the auxiliary character strings in the mixed character strings to obtain the watermark. The invention can effectively protect the identity information and copyright information of copyright personnel, prevent random watermark tampering, obtain multimedia data information only by asking for the authentication of the copyright personnel, and has better protectiveness.

Description

Copyright protection method for acquiring multimedia data characteristic information

Technical Field

The invention relates to the technical field of copyright protection, in particular to a copyright protection method for acquiring multimedia data characteristic information.

Background

With the advent of the network era, communication networks around the world have not only provided a convenient communication channel, but also enabled people to download network resources, play digital images, download online music, and even read electronic books via various electronic devices through the communication networks at any time and any place. Through the communication network, not only can richer and more interesting life be created for modern people, but also the convenience of obtaining information communicated with each other is improved. The popularity of networks will also cause various copyright-related problems such as illegal copying, using, or transferring data, and how to protect digital content streamed over networks is becoming one of the important issues.

At present, the number of users of a UPGC (user and expert generated content) is increasing, and for some multimedia data including audio and/or video of different copyright sources, which are obtained by cutting and recombining multimedia segments and are shared (uploaded) by users of the UPGC, the copyright ownership is more complicated, and the copyright cannot be effectively protected, so that a copyright protection method for obtaining characteristic information of the multimedia data is provided to solve the above problems.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a copyright protection method for acquiring multimedia data characteristic information.

The invention provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string;

s5: character hiding: hiding the auxiliary character strings in the mixed character string to obtain a watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

Preferably, the acquiring the copyright information in the target multimedia data information includes:

and inputting audio information and video information in the copyright information, and inputting author information in the copyright information at the same time, and acquiring the received copyright information by the copyright protector.

Preferably, the extracting the feature information in the copyright information to obtain the auxiliary character string includes:

classifying the obtained copyright information, appointing a comparison character string in advance, marking the comparison character string according to the copyright information type, and adding a creator information character string to obtain an auxiliary character string.

Preferably, the copyright person provides a fingerprint information picture, extracts fingerprint information in the provided fingerprint information picture to obtain a main character string, and the method includes:

and extracting all ridge lines of the fingerprints of the copyright personnel, numbering the ridge lines, integrating the ridge lines according to the obtained numbering information to obtain a main character string, and setting the number of groups of the numbering information to be 72-94 groups.

Preferably, the integrating the obtained auxiliary character string into the main character string to obtain the mixed character string includes:

the coordinate information of the auxiliary character string is set as (X, Y), the coordinate information of the main character string is set as (X, Y), and the image labeling area coordinate is set as (X, Y)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_min,x)；

And randomly taking a value of the mixed character string Z under the condition of meeting the conditions.

Preferably, the hiding the auxiliary character string in the mixed character string to obtain the watermark includes:

and hiding the auxiliary character strings by adopting an image steganography method, wherein the generation time of the watermark is set to be 1-4 s.

Preferably, the watermarking the target multimedia data includes:

the watermark is marked in a document in the target multimedia data.

Preferably, the obtaining the authentication information of the copyright person sequentially obtains the video data information and the audio data information, and includes:

and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 30-60 min.

The invention has the beneficial effects that:

(1) the invention provides a copyright protection method for acquiring characteristic information of multimedia data, which is characterized in that copyright information is acquired and extracted, so that the copyright information is conveniently and quickly marked;

(2) the invention provides a copyright protection method for acquiring multimedia data characteristic information, which integrates an auxiliary character string into a main character string to obtain a mixed character string and generate a special watermark, and can hide a watermark part to avoid the watermark from being distorted;

(3) the invention provides a copyright protection method for acquiring characteristic information of multimedia data, which can extract copyright information only by acquiring the authentication information of copyright personnel, thereby effectively protecting the copyright information of the copyright personnel.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Example one

The embodiment provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string;

s5: character hiding: hiding the auxiliary character strings in the mixed character string to obtain a watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

In this embodiment, the obtaining copyright information in the target multimedia data information includes: the audio information and the video information in the copyright information are input, the author information in the copyright information is input at the same time, the copyright protector obtains the received copyright information, the characteristic information in the copyright information is extracted, and the auxiliary character string is obtained, and the method comprises the following steps: classifying the copyright information obtained, appointing a comparison character string in advance, marking the character string according to the copyright information type, adding an author information character string to obtain an auxiliary character string, providing a fingerprint information picture by copyright personnel, extracting the fingerprint information in the provided fingerprint information picture to obtain a main character string, and the method comprises the following steps: extracting all ridge lines of the fingerprints of the copyright personnel and numbering the ridge lines, integrating to obtain a main character string according to the obtained numbering information, setting the group number of the numbering information into 72 groups, integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string, and comprising the following steps: the coordinate information of the auxiliary character string is set to be (X, Y), the coordinate information of the main character string is set to be (X, Y), and the coordinate of the image labeling area is set to be (X)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_minX); wherein mixed character string Z is at the random value taking under the condition of satisfying above-mentioned condition, hides the auxiliary character string in the mixed character string and handles, obtains the watermark, includes: hiding the auxiliary character string by adopting an image steganography method, setting the watermark generation time to be 1s, and marking the watermark in target multimedia data, wherein the method comprises the following steps: the watermark is marked in the document in the target multimedia data to obtain the authentication information of copyright personnel, and the authentication information is sequentially marked in sequenceAcquiring video data information and audio data information, comprising: and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 30 min.

Example two

The embodiment provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string;

s5: character hiding: hiding the auxiliary character strings in the mixed character strings to obtain the watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

In this embodiment, acquiring copyright information in target multimedia data information includes: the audio information and the video information in the copyright information are input, the author information in the copyright information is input at the same time, the copyright protector obtains the received copyright information, the characteristic information in the copyright information is extracted, and the auxiliary character string is obtained, and the method comprises the following steps: classifying the obtained copyright information, appointing a comparison character string in advance, marking the character string according to the copyright information type, adding a creator information character string to obtain an auxiliary character string, providing a fingerprint information picture by copyright personnel, extracting the fingerprint information in the provided fingerprint information picture to obtain a main character string, and the method comprises the following steps: extracting all ridge lines of the fingerprints of the copyright personnel, numbering the ridge lines, and integrating the ridge lines according to the obtained numbering informationObtaining a main character string, setting the group number of the numbering information as 76 groups, and integrating the obtained auxiliary character string into the main character string to obtain a mixed character string, wherein the mixed character string comprises the following steps: the coordinate information of the auxiliary character string is set as (X, Y), the coordinate information of the main character string is set as (X, Y), and the image labeling area coordinate is set as (X, Y)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_minX); wherein mixed character string Z takes value at random under the condition that satisfies above-mentioned condition, hides the auxiliary character string in the mixed character string, obtains the watermark, includes: hiding the auxiliary character string by adopting an image steganography method, setting the watermark generation time to be 2s, and marking the watermark in target multimedia data, wherein the method comprises the following steps: the watermark is marked in the file in the target multimedia data, obtains the authentication information of copyright personnel, obtains the video data information and the audio data information in turn, and comprises the following steps: and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 40 min.

EXAMPLE III

The embodiment provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character strings to obtain mixed character strings;

s5: character hiding: hiding the auxiliary character strings in the mixed character string to obtain a watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

In this embodiment, the obtaining copyright information in the target multimedia data information includes: the audio information and the video information in the copyright information are input, the author information in the copyright information is input at the same time, the copyright protector obtains the received copyright information, the characteristic information in the copyright information is extracted, and the auxiliary character string is obtained, and the method comprises the following steps: classifying the copyright information obtained, appointing a comparison character string in advance, marking the character string according to the copyright information type, adding an author information character string to obtain an auxiliary character string, providing a fingerprint information picture by copyright personnel, extracting the fingerprint information in the provided fingerprint information picture to obtain a main character string, and the method comprises the following steps: extract all ridge and the serial number of copyright personnel fingerprint, obtain the main character string according to the number information integration that obtains, the group number of number information sets up to 80 groups, and the auxiliary character string that will obtain integrates to the main character string in, obtains the mixed character string, includes: the coordinate information of the auxiliary character string is set to be (X, Y), the coordinate information of the main character string is set to be (X, Y), and the coordinate of the image labeling area is set to be (X)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_minX); wherein mixed character string Z takes value at random under the condition that satisfies above-mentioned condition, hides the auxiliary character string in the mixed character string, obtains the watermark, includes: hiding the auxiliary character string by adopting an image steganography method, setting the watermark generation time to be 2s, and marking the watermark in target multimedia data, wherein the method comprises the following steps: the watermark is marked in the file in the target multimedia data, obtains the authentication information of copyright personnel, obtains the video data information and the audio data information in sequence, and comprises the following steps: and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 45 min.

Example four

The embodiment provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string;

s5: character hiding: hiding the auxiliary character strings in the mixed character string to obtain a watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

In this embodiment, acquiring copyright information in target multimedia data information includes: the audio information and the video information in the copyright information are input, the author information in the copyright information is input at the same time, the copyright protector obtains the received copyright information, the characteristic information in the copyright information is extracted, and the auxiliary character string is obtained, and the method comprises the following steps: classifying the copyright information obtained, appointing a comparison character string in advance, marking the character string according to the copyright information type, adding an author information character string to obtain an auxiliary character string, providing a fingerprint information picture by copyright personnel, extracting the fingerprint information in the provided fingerprint information picture to obtain a main character string, and the method comprises the following steps: extracting all ridge lines of the fingerprints of the copyright personnel and numbering the ridge lines, integrating to obtain a main character string according to the obtained numbering information, setting the group number of the numbering information into 84 groups, integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string, and comprising the following steps: the coordinate information of the auxiliary character string is set as (X, Y), the coordinate information of the main character string is set as (X, Y), and the image labeling area coordinate is set as (X, Y)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_minX); wherein the mixed string Z is onRandomly taking values under the condition, hiding the auxiliary character strings in the mixed character strings to obtain the watermark, comprising the following steps: hiding the auxiliary character string by adopting an image steganography method, setting the watermark generation time to be 3s, and marking the watermark in target multimedia data, wherein the method comprises the following steps: the watermark is marked in the file in the target multimedia data, obtains the authentication information of copyright personnel, obtains the video data information and the audio data information in sequence, and comprises the following steps: and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 50 min.

EXAMPLE five

The embodiment provides a copyright protection method for acquiring multimedia data characteristic information, which comprises the following steps:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character strings to obtain mixed character strings;

s5: character hiding: hiding the auxiliary character strings in the mixed character strings to obtain the watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

In this embodiment, the obtaining copyright information in the target multimedia data information includes: the audio information and the video information in the copyright information are input, the author information in the copyright information is input at the same time, the copyright protector obtains the received copyright information, the characteristic information in the copyright information is extracted, and the auxiliary character string is obtained, and the method comprises the following steps: to the obtainedCopyright information is categorised, appoints the contrast character string in advance, marks it according to copyright information kind to add author's information character string, obtain the auxiliary character string, the copyright personnel provide the fingerprint information picture, extract the fingerprint information in the fingerprint information picture that provides, obtain the capital character string, include: extracting all ridge lines of the fingerprints of the copyright personnel and numbering the ridge lines, integrating to obtain a main character string according to the obtained numbering information, setting the group number of the numbering information into 94 groups, integrating the obtained auxiliary character string into the main character string to obtain a mixed character string, and comprising the following steps of: the coordinate information of the auxiliary character string is set to be (X, Y), the coordinate information of the main character string is set to be (X, Y), and the coordinate of the image labeling area is set to be (X)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_minX); wherein mixed character string Z takes value at random under the condition that satisfies above-mentioned condition, hides the auxiliary character string in the mixed character string, obtains the watermark, includes: hiding the auxiliary character string by adopting an image steganography method, setting the watermark generation time to be 4s, and marking the watermark in target multimedia data, wherein the method comprises the following steps: the watermark is marked in the file in the target multimedia data, obtains the authentication information of copyright personnel, obtains the video data information and the audio data information in sequence, and comprises the following steps: and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 60 min.

The copyright information is protected in the first embodiment to the fifth embodiment, and the following results are obtained:

the result shows that the copyright protection method for acquiring the characteristic information of the multimedia data can effectively protect the identity information and the copyright information of copyright personnel, prevent random watermark tampering and acquire the multimedia data information only by requiring the authentication of the copyright personnel, and the third embodiment and the fourth embodiment are the best embodiments.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The copyright protection method for acquiring the characteristic information of the multimedia data is characterized by comprising the following steps of:

s1: acquiring copyright protection information: acquiring copyright information in target multimedia data information;

s2: extracting characteristic information: extracting characteristic information in the copyright information to obtain an auxiliary character string;

s3: fingerprint information extraction: the copyright personnel provides a fingerprint information picture, and extracts the fingerprint information in the provided fingerprint information picture to obtain a main character string;

s4: information encryption: integrating the obtained auxiliary character strings into the main character string to obtain a mixed character string;

s5: character hiding: hiding the auxiliary character strings in the mixed character strings to obtain the watermark;

s6: copyright marking: marking the watermark in the target multimedia data;

s7: copyright information extraction: and acquiring authentication information of copyright personnel, and sequentially acquiring video data information and audio data information.

2. The method as claimed in claim 1, wherein the step of obtaining copyright information of the target multimedia data information comprises:

and inputting audio information and video information in the copyright information, and inputting author information in the copyright information at the same time, and acquiring the received copyright information by the copyright protector.

3. The method of claim 1, wherein the extracting the feature information from the copyright information to obtain the assistant character string comprises:

classifying the obtained copyright information, appointing a comparison character string in advance, marking the comparison character string according to the copyright information type, and adding a creator information character string to obtain an auxiliary character string.

4. The copyright protection method for acquiring the characteristic information of the multimedia data according to claim 1, wherein the copyright personnel provides a fingerprint information picture, extracts the fingerprint information in the provided fingerprint information picture to obtain the main character string, and comprises:

and extracting all ridge lines of the fingerprints of the copyright personnel, numbering the ridge lines, integrating the ridge lines according to the obtained numbering information to obtain a main character string, and setting the number of groups of the numbering information to be 72-94 groups.

5. The method of claim 1, wherein the integrating the obtained peripheral strings into the main strings to obtain the hybrid strings comprises:

the coordinate information of the auxiliary character string is set as (X, Y), the coordinate information of the main character string is set as (X, Y), and the image labeling area coordinate is set as (X, Y)_min,y_min,x_max,y_max) Then the mixed string Z should satisfy max (x)_max,0)＜Z＜min(x_min,x)；

And randomly taking a value of the mixed character string Z under the condition of meeting the conditions.

6. The copyright protection method for acquiring the characteristic information of the multimedia data according to claim 1, wherein the hiding the auxiliary character string in the mixed character string to obtain the watermark comprises:

and hiding the auxiliary character string by adopting an image steganography method, wherein the time for generating the watermark is set to be 1-4 s.

7. The copyright protection method of claim 1, wherein the marking a watermark in the target multimedia data comprises:

the watermark is marked in a document in the target multimedia data.

8. The copyright protection method of claim 1, wherein the obtaining of the authentication information of the copyright holder sequentially obtains the video data information and the audio data information, comprising:

and receiving authentication information of copyright personnel, and inputting the received authentication information into a file with copyright protection, wherein the storage time of the received authentication information is 30-60 min.