CN113361395A - AI face-changing video detection method based on multitask learning model - Google Patents

AI face-changing video detection method based on multitask learning model Download PDF

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CN113361395A
CN113361395A CN202110624171.1A CN202110624171A CN113361395A CN 113361395 A CN113361395 A CN 113361395A CN 202110624171 A CN202110624171 A CN 202110624171A CN 113361395 A CN113361395 A CN 113361395A
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CN113361395B (en
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姚军艇
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Sun Yat Sen University
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Abstract

The invention discloses an AI face-changing video detection method based on a multitask learning model, belonging to the field of computer vision and deep learning, and the detection method comprises the following specific steps: (1) uploading a video to be detected by a user; (2) constructing a human face image counterfeiting detector; (3) taking pictures of the video frame by frame; (4) screening the extracted pictures; (5) carrying out face changing detection on the rest pictures; (6) feeding back the detection result to the user; the face image counterfeiting detector can avoid computer infection with viruses, reduce the risk of stealing user information, protect the property safety of users, meanwhile, the face image counterfeiting detector can continuously update and learn, continuously improve the working efficiency of the face image counterfeiting detector, facilitate checking of workers, prevent the manual recording of the workers from generating errors, and improve the working efficiency of the workers.

Description

AI face-changing video detection method based on multitask learning model
Technical Field
The invention relates to the field of computer vision and deep learning, in particular to an AI face changing video detection method based on a multitask learning model.
Background
The AI face changing is to change the face of another person into the face of the person through an AI artificial intelligence technology, the face expression is natural, the effect is vivid, only one photo needs to be passed through in the whole process, then the AI technology can be used for replacing people in a drama or a small video on ZAO software, so that a video with the person as a main role is generated, along with the development of deep learning, the AI face changing technology is more and more mature, the AI face changing effect is better and more, along with the development of the AI face changing technology, a lot of negative effects are brought, for example, DeepFakes show how to use computer graphics and visual technology to change the face of a video, further the reputation of the other person is damaged, along with the continuous development of the technology, the fidelity of the AI face changing technology is gradually improved, and sometimes the authenticity of a human cannot be distinguished; therefore, it becomes more important to invent an AI face-changing video detection method based on a multitask learning model;
through retrieval, Chinese patent No. CN111950497A discloses an AI face-changing video detection method based on a multitask learning model, although the calculation cost is reduced and the accuracy is improved, when a network data set is collected, the security detection is not carried out on the network data set, a computer is infected by virus, user information is easily stolen, and the property safety of the user is harmed; in addition, the conventional AI face-changing video detection method based on the multitask learning model cannot effectively feed back the detection result to the user, so that the user recording error is easily caused, and the working quality of the user is reduced; therefore, an AI face-changing video detection method based on a multitask learning model is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an AI face changing video detection method based on a multitask learning model.
In order to achieve the purpose, the invention adopts the following technical scheme:
an AI face-changing video detection method based on a multitask learning model comprises the following specific steps:
(1) uploading a video to be detected by a user: a user uploads a video to be detected to a computer through an external input device, wherein the external input device is one of a keyboard, a mouse or a touch screen, the video is successfully uploaded, and the user puts the video into detection software;
(2) constructing a face image counterfeiting detector: the detection software receives the video, starts to perform data interaction with the Internet, performs data capture on face-changing detection data, performs security detection on the captured data, and starts to construct a face image counterfeiting detector;
(3) taking pictures of the video frame by frame: the face image counterfeiting detector starts to automatically scan the video to be detected, calculates the video quantity, and simultaneously performs detection sequencing, the video sequencing is completed, and the face image counterfeiting detector performs frame-by-frame image taking on the video;
(4) and (3) carrying out picture screening on the extracted pictures: after the picture is extracted, starting to construct a picture screener, wherein the picture screener starts to perform data interaction with the characteristic information base and starts to perform contrast screening on the extracted picture;
(5) face changing detection is carried out on the rest pictures: performing forgery detection on the screened pictures, respectively recording detection results into an XLSX worksheet, and marking detection time in the XLSX worksheet;
(6) and feeding back the detection result to a user: and feeding back the detection result to a user through display equipment, searching and checking an XLSX worksheet through input equipment of the user, and printing the XLSX worksheet through printing equipment, wherein the display equipment is a CRT display screen, an LCD display screen or an LED display screen, and the printing equipment is a laser printer, an ink-jet printer or a stylus printer.
Further, the safety detection in the step (2) specifically comprises the following steps:
the method comprises the following steps: capturing FaceForensics, Face2Face, FaceSwap and DeepFakes data sets in real time from the Internet, and starting a firewall;
step two: the firewall starts to detect the data in each data set, deletes the virus data in the data set, and records the deleted virus data in the cloud virus information base;
step three: and after the data detection is finished, training a faceforces, a Face2Face, a FaceSwap and a DeepFakes data set into a current optimal human Face image counterfeiting detector.
Further, the detection sorting in step (3) specifically comprises the following steps:
the first step is as follows: starting to collect video information uploaded by a user, and sequencing the video information according to the uploading time;
the second step is that: the user arranges and adjusts the video through the external input equipment, and the human face image counterfeiting detector starts to update the video arrangement sequence according to the user adjustment information.
Further, the specific step of taking pictures frame by frame in step (3) is as follows:
s1: performing video segmentation processing on a video to be detected according to one frame, and respectively marking segments which are segmented as A1, A2, A3, … and An, wherein n is a natural number and the size of n is increased in sequence;
s2: A1-An are converted into pictures and sorted according to cutting time.
5. The AI face-changing video detection method based on the multitask learning model according to claim 1, further comprising the specific steps of comparing and screening in step (4) as follows:
SS 1: the picture filter begins to extract human characteristic information from the characteristic information base and processes the human characteristic information to generate comparison data;
SS 2: comparing the A1-An with the comparison data respectively, deleting pictures which do not contain human characteristics, and marking the screened pictures as B1, B2, B3, … and Bm respectively, wherein m is a natural number, and the size of m is increased sequentially.
Further, the counterfeit detection in step (5) specifically comprises the following steps:
p1: carrying out color space conversion on the B1-Bm in sequence, and starting to compare the difference of the front edge, the back edge, the texture and the surface of the conversion;
p2: if the low contrast edge and the high contrast edge are almost as bright, texture difference starts to be contrasted, and if the brightness of the low contrast edge and the brightness of the high contrast edge are obviously different, the video is judged to be a face changing video;
p3: if the coloring of the area with more texture details is higher than the smooth surface, the surface difference is compared, and if the coloring of the area with more texture details is lower than the smooth surface, the video is judged to be a face changing video;
p4: if the coloring of the surface is consistent before and after conversion, judging that the video is not a face changing video, and if the coloring of the surface is inconsistent before and after conversion, judging that the video is a face changing video;
p5: and after the detection is finished, performing data matching on the video name and the judgment result, simultaneously orderly inputting the matched data into an XLSX worksheet, and marking the detection time in the XLSX worksheet.
Further, the specific steps of searching and checking in the step (6) are as follows:
PP 1: inputting a primary time period X to be searched by a user through input equipment;
PP 2: inputting the secondary time period X again after the user inputs the primary time period X;
PP 3: after the user inputs the primary time period X and the secondary time period X, the computer calls the content required by the user and displays the content through the display device.
Compared with the prior art, the invention has the beneficial effects that:
1. the AI Face-changing video detection method based on the multitask learning model receives a video uploaded by a user, starts data interaction with the Internet, simultaneously starts to capture faceForensecs, Face2Face, faceSwap and DeepFakes data sets from the Internet in real time, detects viruses of the captured data sets through a firewall, deletes the virus data in the captured data sets, records the deleted virus data in a cloud virus information base, completes data detection, trains the data sets into a current optimal Face image counterfeiting detector, and updates the data sets in real time, so that the computer can be prevented from infecting viruses, the risk that user information is stolen is reduced, the property safety of the user is protected, and meanwhile, the Face image detector can be updated, counterfeited and learned continuously, and the working efficiency of the Face image detector is improved continuously;
2. the AI face-changing video detection method based on the multitask learning model cuts a video to be detected into a plurality of groups of pictures, screens the pictures through the picture screening device, performs color space conversion processing on the screened pictures, compares edge brightness difference, texture coloring degree difference and coloring degree before and after surface conversion, performs data matching on video names and judgment results, and simultaneously records data which are matched and completed in an XLSX worksheet in order, and marks detection time in the XLSX worksheet, can record detection results in order, facilitates checking of workers, prevents the occurrence of errors in manual records of the workers, and improves the working efficiency of the workers.
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The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flow chart of an AI face-changing video detection method based on a multitask learning model according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the embodiment discloses an AI face-changing video detection method based on a multitask learning model, which specifically includes the following steps:
(1) uploading a video to be detected by a user: a user uploads a video to be detected to a computer through external input equipment, the video is successfully uploaded, and the user puts the video into detection software;
specifically, the external input device is one of a keyboard, a mouse, or a touch screen.
(2) Constructing a face image counterfeiting detector: the detection software receives the video, starts to perform data interaction with the Internet, performs data capture on face-changing detection data, performs security detection on the captured data, and starts to construct a face image counterfeiting detector.
The embodiment provides a safety detection method, which comprises the following specific safety detection steps:
the method comprises the following steps: capturing FaceForensics, Face2Face, FaceSwap and DeepFakes data sets in real time from the Internet, and starting a firewall;
step two: the firewall starts to detect the data in each data set, deletes the virus data in the data set, and records the deleted virus data in the cloud virus information base;
step three: and after the data detection is finished, training a faceforces, a Face2Face, a FaceSwap and a DeepFakes data set into a current optimal human Face image counterfeiting detector.
(3) Taking pictures of the video frame by frame: the face image counterfeiting detector starts to automatically scan the video to be detected, calculates the video quantity, simultaneously performs detection sequencing, completes the video sequencing, and performs frame-by-frame image taking on the video.
The embodiment provides a detection sorting method, which comprises the following specific detection sorting steps:
the first step is as follows: starting to collect video information uploaded by a user, and sequencing the video information according to the uploading time;
the second step is that: the user arranges and adjusts the video through the external input equipment, and the human face image counterfeiting detector starts to update the video arrangement sequence according to the user adjustment information.
The embodiment further discloses a frame-by-frame image-taking method, which comprises the following specific steps:
s1: performing video segmentation processing on a video to be detected according to one frame, and respectively marking segments which are segmented as A1, A2, A3, … and An, wherein n is a natural number and the size of n is increased in sequence;
s2: A1-An are converted into pictures and sorted according to cutting time.
(4) And (3) carrying out picture screening on the extracted pictures: and after the picture is extracted, starting to construct a picture screener, completing the construction, starting to perform data interaction with the characteristic information base by the picture screener, and starting to perform contrast screening on the extracted picture.
Specifically, the steps of the comparison and screening of the image screener are as follows:
SS 1: the picture filter begins to extract human characteristic information from the characteristic information base and processes the human characteristic information to generate comparison data;
SS 2: comparing the A1-An with the comparison data respectively, deleting pictures which do not contain human characteristics, and marking the screened pictures as B1, B2, B3, … and Bm respectively, wherein m is a natural number, and the size of m is increased sequentially.
(5) Face changing detection is carried out on the rest pictures: and performing forgery detection on the screened pictures, recording detection results into an XLSX worksheet, and marking detection time in the XLSX worksheet.
The embodiment provides a forgery detection method, which specifically comprises the following steps:
p1: carrying out color space conversion on the B1-Bm in sequence, and starting to compare the difference of the front edge, the back edge, the texture and the surface of the conversion;
p2: if the low contrast edge and the high contrast edge are almost as bright, texture difference starts to be contrasted, and if the brightness of the low contrast edge and the brightness of the high contrast edge are obviously different, the video is judged to be a face changing video;
p3: if the coloring of the area with more texture details is higher than the smooth surface, the surface difference is compared, and if the coloring of the area with more texture details is lower than the smooth surface, the video is judged to be a face changing video;
p4: if the coloring of the surface is consistent before and after conversion, judging that the video is not a face changing video, and if the coloring of the surface is inconsistent before and after conversion, judging that the video is a face changing video;
p5: and after the detection is finished, performing data matching on the video name and the judgment result, simultaneously orderly inputting the matched data into an XLSX worksheet, and marking the detection time in the XLSX worksheet.
(6) And feeding back the detection result to a user: and feeding back the detection result to a user through a display device, and simultaneously, searching and checking the XLSX worksheet through an input device by the user, and printing the XLSX worksheet through a printing device.
Specifically, the user search and check comprises the following specific steps:
PP 1: inputting a primary time period X to be searched by a user through input equipment;
PP 2: inputting the secondary time period X again after the user inputs the primary time period X;
PP 3: after the user inputs the primary time period X and the secondary time period X, the computer calls out the content required by the user and displays the content through the display equipment;
in this embodiment, the display device is specifically a CRT display screen, an LCD display screen, or an LED display screen, and the printing device is specifically a laser printer, an inkjet printer, or a stylus printer.
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 (7)

1. An AI face-changing video detection method based on a multitask learning model is characterized by comprising the following specific steps:
(1) uploading a video to be detected by a user: a user uploads a video to be detected to a computer through an external input device, wherein the external input device is one of a keyboard, a mouse or a touch screen, the video is successfully uploaded, and the user puts the video into detection software;
(2) constructing a face image counterfeiting detector: the detection software receives the video, starts to perform data interaction with the Internet, performs data capture on face-changing detection data, performs security detection on the captured data, and starts to construct a face image counterfeiting detector;
(3) taking pictures of the video frame by frame: the face image counterfeiting detector starts to automatically scan the video to be detected, calculates the video quantity, and simultaneously performs detection sequencing, the video sequencing is completed, and the face image counterfeiting detector performs frame-by-frame image taking on the video;
(4) and (3) carrying out picture screening on the extracted pictures: after the picture is extracted, starting to construct a picture screener, wherein the picture screener starts to perform data interaction with the characteristic information base and starts to perform contrast screening on the extracted picture;
(5) face changing detection is carried out on the rest pictures: performing forgery detection on the screened pictures, respectively recording detection results into an XLSX worksheet, and marking detection time in the XLSX worksheet;
(6) and feeding back the detection result to a user: and feeding back the detection result to a user through display equipment, searching and checking an XLSX worksheet through input equipment of the user, and printing the XLSX worksheet through printing equipment, wherein the display equipment is a CRT display screen, an LCD display screen or an LED display screen, and the printing equipment is a laser printer, an ink-jet printer or a stylus printer.
2. The AI face-changing video detection method based on the multitask learning model according to claim 1, wherein the safety detection in the step (2) specifically comprises the following steps:
the method comprises the following steps: capturing FaceForensics, Face2Face, FaceSwap and DeepFakes data sets in real time from the Internet, and starting a firewall;
step two: the firewall starts to detect the data in each data set, deletes the virus data in the data set, and records the deleted virus data in the cloud virus information base;
step three: and after the data detection is finished, training a faceforces, a Face2Face, a FaceSwap and a DeepFakes data set into a current optimal human Face image counterfeiting detector.
3. The AI face-changing video detection method based on the multitask learning model according to claim 1, wherein the detection sequence in step (3) is as follows:
the first step is as follows: starting to collect video information uploaded by a user, and sequencing the video information according to the uploading time;
the second step is that: the user arranges and adjusts the video through the external input equipment, and the human face image counterfeiting detector starts to update the video arrangement sequence according to the user adjustment information.
4. The AI face-changing video detection method based on the multitask learning model according to claim 1, wherein the specific steps of taking pictures frame by frame in step (3) are as follows:
s1: performing video segmentation processing on a video to be detected according to one frame, and respectively marking segments which are segmented as A1, A2, A3, … and An, wherein n is a natural number and the size of n is increased in sequence;
s2: A1-An are converted into pictures and sorted according to cutting time.
5. The AI face-changing video detection method based on multitask learning model according to claim 1, characterized in that said comparing and screening in step (4) specifically comprises the following steps:
SS 1: the picture filter begins to extract human characteristic information from the characteristic information base and processes the human characteristic information to generate comparison data;
SS 2: comparing the A1-An with the comparison data respectively, deleting pictures which do not contain human characteristics, and marking the screened pictures as B1, B2, B3, … and Bm respectively, wherein m is a natural number, and the size of m is increased sequentially.
6. The AI face-changing video detection method based on the multitask learning model according to claim 1, wherein the specific steps of the forgery detection in the step (5) are as follows:
p1: carrying out color space conversion on the B1-Bm in sequence, and starting to compare the difference of the front edge, the back edge, the texture and the surface of the conversion;
p2: if the low contrast edge and the high contrast edge are almost as bright, texture difference starts to be contrasted, and if the brightness of the low contrast edge and the brightness of the high contrast edge are obviously different, the video is judged to be a face changing video;
p3: if the coloring of the area with more texture details is higher than the smooth surface, the surface difference is compared, and if the coloring of the area with more texture details is lower than the smooth surface, the video is judged to be a face changing video;
p4: if the coloring of the surface is consistent before and after conversion, judging that the video is not a face changing video, and if the coloring of the surface is inconsistent before and after conversion, judging that the video is a face changing video;
p5: and after the detection is finished, performing data matching on the video name and the judgment result, simultaneously orderly inputting the matched data into an XLSX worksheet, and marking the detection time in the XLSX worksheet.
7. The AI face-changing video detection method based on the multitask learning model according to claim 1, wherein the specific steps of searching and viewing in step (6) are as follows:
PP 1: inputting a primary time period X to be searched by a user through input equipment;
PP 2: inputting the secondary time period X again after the user inputs the primary time period X;
PP 3: after the user inputs the primary time period X and the secondary time period X, the computer calls the content required by the user and displays the content through the display device.
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