CN108989736B - Multimedia resource encryption method, device, system, storage medium and processor - Google Patents
Multimedia resource encryption method, device, system, storage medium and processor Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention provides a multimedia resource encryption method, device, system, storage medium and processor. The method comprises the following steps: acquiring multimedia resources, wherein the multimedia resources are resources acquired in a target meeting place in a teleconference; acquiring a target resource corresponding to a to-be-encrypted conferencing object from a multimedia resource, wherein the to-be-encrypted conferencing object comprises at least one of the following: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place; and encrypting the target resource according to the resource type of the target resource. By the method and the device, the problem of poor confidentiality of the multimedia resources transmitted in the teleconference is solved, and the confidentiality of the multimedia resources transmitted in the teleconference is improved.
Description
Technical Field
The invention relates to the field of internet, in particular to a multimedia resource encryption method, a multimedia resource encryption device, a multimedia resource encryption system, a multimedia resource encryption storage medium and a multimedia resource encryption processor.
Background
With the development of internet technology, more and more daily activities of people can be performed on the network, such as: for persons who need to attend a conference who are inconveniently gathered together, a meeting can be made by conducting a remote video conference or a remote telephone conference. In some conferences, there are some speakers whose identity and appearance are public to the inside, but for outside sites, their identity and appearance need to be kept secret, such as: a first-line drug-arresting police is used for event propaganda or experience exchange. But the security effect in the current teleconferencing system is not ideal.
Aiming at the problem that the secrecy effect of multimedia resources transmitted in a teleconference in the related technology is poor, no effective solution is provided at present.
Disclosure of Invention
The embodiment of the invention provides a multimedia resource encryption method, a device, a system, a storage medium and a processor, which are used for at least solving the problem of poor encryption effect of multimedia resources transmitted in a teleconference in the related technology.
According to an embodiment of the present invention, there is provided a multimedia resource encryption method, including: acquiring multimedia resources, wherein the multimedia resources are acquired in a target meeting place in a remote meeting; acquiring a target resource corresponding to a to-be-encrypted conferee object from the multimedia resource, wherein the to-be-encrypted conferee object comprises at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted; and encrypting the target resource according to the resource type of the target resource.
Optionally, the obtaining the target resource corresponding to the to-be-encrypted conferred object from the multimedia resource includes: matching the multimedia resource with preset characteristic information, wherein the preset characteristic information is used for indicating the characteristics of the participated object to be encrypted; and acquiring resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
Optionally, matching the multimedia resource with the preset feature information includes at least one of: matching the video resources in the multimedia resources with facial feature information carried in the preset feature information, wherein the facial feature information is used for indicating the facial features of the participants to be encrypted; matching the video resource in the multimedia resource with article characteristic information carried in the preset characteristic information, wherein the article characteristic information is used for indicating the characteristics of the article to be encrypted; and matching the audio resources in the multimedia resources with sound characteristic information carried in the preset characteristic information, wherein the sound characteristic information is used for indicating the sound characteristics of the participants to be encrypted.
Optionally, encrypting the target resource according to the resource type of the target resource includes at least one of: under the condition that the resource type comprises a video resource, acquiring a display area of the video resource on a video image; performing blurring processing or mosaic processing on the display area; and under the condition that the resource type comprises an audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
Optionally, before acquiring the multimedia resource, the method further includes: acquiring a first security level corresponding to one or more meeting places and a second security level of the remote conference, wherein the one or more meeting places are the meeting places participating in the remote conference, the security level is used for indicating the security degree, and the higher the security level is, the larger the security degree is; comparing the first privacy level to the second privacy level; and acquiring the conference meeting place with the first security level higher than the second security level as the target conference meeting place.
Optionally, the obtaining the first privacy level corresponding to the one or more meeting places and the second privacy level of the teleconference includes: receiving the first privacy level sent by the conference terminals in the one or more conference sites; determining a privacy level of a lowest level of the first privacy levels as the second privacy level of the teleconference.
According to another embodiment of the present invention, there is also provided a multimedia resource encryption apparatus, including: the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring multimedia resources, and the multimedia resources are resources acquired in a target meeting place in a teleconference; a second obtaining module, configured to obtain, from the multimedia resource, a target resource corresponding to a to-be-encrypted conferencing object, where the to-be-encrypted conferencing object includes at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted; and the encryption module is used for encrypting the target resource according to the resource type of the target resource.
Optionally, the second obtaining module includes: the matching unit is used for matching the multimedia resources with preset characteristic information, wherein the preset characteristic information is used for indicating characteristics of the participated object to be encrypted; and the acquisition unit is used for acquiring the resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
Optionally, the encryption module comprises at least one of: the first encryption unit is used for acquiring a display area of the video resource on a video image under the condition that the resource type comprises the video resource; performing blurring processing or mosaic processing on the display area; and the second encryption unit is used for carrying out frequency conversion processing or tone conversion processing on the audio resource under the condition that the resource type comprises the audio resource.
Optionally, the apparatus further comprises: a third obtaining module, configured to obtain a first privacy level corresponding to one or more meeting places and a second privacy level of the teleconference, where the one or more meeting places are the meeting places participating in the teleconference, the privacy level is used to indicate a privacy degree, and a higher privacy level indicates a greater privacy degree; a comparison module for comparing the first privacy level with the second privacy level; and the fourth obtaining module is used for obtaining the conference meeting place with the first security level higher than the second security level as the target conference meeting place.
According to another embodiment of the present invention, there is also provided a multimedia resource encryption system including: the system comprises a privacy processing device and a target conference terminal, wherein the privacy processing device is connected with the target conference terminal and is used for acquiring multimedia resources sent by the target conference terminal, and the multimedia resources are resources acquired by the target conference terminal in a target conference site in a teleconference; acquiring a target resource corresponding to a to-be-encrypted conferee object from the multimedia resource, wherein the to-be-encrypted conferee object comprises at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted; and encrypting the target resource according to the resource type of the target resource.
Optionally, the encryption processing apparatus is configured to: matching the multimedia resource with preset characteristic information, wherein the preset characteristic information is used for indicating the characteristics of the participated object to be encrypted; and acquiring resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
Optionally, the encryption processing device is configured to at least one of: under the condition that the resource type comprises a video resource, acquiring a display area of the video resource on a video image; performing blurring processing or mosaic processing on the display area; and under the condition that the resource type comprises an audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
Optionally, the encryption processing apparatus is one or more encryption processing apparatuses, and the system includes: one or more conference-participating terminals, wherein the one or more privacy-preserving processing devices correspond to the one or more conference-participating terminals in a one-to-one manner, the one or more conference-participating terminals correspond to one or more conference-participating sites in a one-to-one manner, the one or more conference-participating sites are conference-participating sites participating in the remote conference, the one or more privacy-preserving processing devices are respectively connected with the one or more corresponding conference-participating terminals, each privacy-preserving processing device of the one or more privacy-preserving processing devices is used for acquiring a first privacy level of the corresponding conference-participating site and a second privacy level of the remote conference, wherein the privacy levels are used for indicating the degree of confidentiality, and the higher the privacy levels are used for indicating the greater degree of confidentiality; comparing the first privacy level to the second privacy level; and under the condition that the first security level is higher than the second security level, taking the corresponding conference site as the target conference site.
Optionally, the system further comprises: the video conference system central control equipment MCU is connected with the encryption processing device, and the encryption processing device is also used for sending the encrypted multimedia resource to the MCU; and the MCU is used for sending the encrypted multimedia resources to a conference site participating in the teleconference.
According to yet another embodiment of the present invention, there is also provided a storage medium including a stored program, wherein the program performs any one of the above methods when executed.
According to yet another embodiment of the present invention, there is also provided a processor for executing a program, wherein the program executes to perform the method of any one of the above.
According to the invention, the multimedia resources collected from the target conference site are obtained, the target resources corresponding to the conference object to be encrypted are obtained from the multimedia resources, and the target resources are encrypted according to the resource type of the target resources, so that part of the resources corresponding to the conference object to be encrypted in the multimedia resources are encrypted, and the secret-related content in the target conference site is ensured to be processed in a secret way, therefore, the problem of poor secret effect of the multimedia resources transmitted in the teleconference is solved, and the secret effect of the multimedia resources transmitted in the teleconference is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flow chart of a multimedia asset encryption method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a method for confirming a privacy level of a teleconference in accordance with an alternative embodiment of the present invention;
FIG. 3 is a block diagram of a multimedia resource encryption apparatus according to an embodiment of the present invention;
FIG. 4 is a block diagram of a multimedia resource encryption apparatus according to an embodiment of the present invention;
FIG. 5 is a block diagram of a multimedia resource encryption apparatus according to an embodiment of the present invention;
FIG. 6 is a block diagram of a multimedia asset encryption system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a multimedia asset encryption system encrypting a video asset in accordance with an alternative embodiment of the present invention;
fig. 8 is a schematic diagram of a multimedia asset encryption system encrypting an audio asset according to an alternative embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, a multimedia resource encryption method is provided, and fig. 1 is a flowchart of a multimedia resource encryption method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, multimedia resources are obtained, wherein the multimedia resources are resources collected in a target meeting place in a teleconference;
step S104, obtaining a target resource corresponding to a to-be-encrypted conference object from the multimedia resource, wherein the to-be-encrypted conference object comprises at least one of the following: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place;
and S106, encrypting the target resource according to the resource type of the target resource.
Optionally, the executing subject of the above steps may be a conference terminal or a server, etc., but is not limited thereto.
Optionally, the above multimedia asset encryption method can be applied to, but not limited to, a scene of a presentation asset. For example: and displaying scenes of audio and video resources in the teleconference, and the like.
Optionally, the multimedia resources may include, but are not limited to: video assets, audio assets, image assets, text assets, and the like.
Alternatively, the multimedia resources can be collected by, but not limited to, conference terminals (such as camera devices, sound collecting devices, and the like) located in conference sites and sent to the device for performing the security processing on the multimedia resources.
Optionally, the items to be encrypted in the target meeting place may include, but are not limited to: the items in the conference site with the security level or the items in the conference site needing security can be the items in the conference site. For example: security documents, security books, security documents, and the like.
Through the steps, the multimedia resources collected from the target meeting place are obtained, the target resources corresponding to the meeting objects to be encrypted are obtained from the multimedia resources, and the target resources are encrypted according to the resource types of the target resources, so that part of the resources corresponding to the meeting objects to be encrypted in the multimedia resources are encrypted, and confidential contents in the target meeting place are ensured to be processed in a confidential mode.
Optionally, in order to extract a target resource that needs to be encrypted from the multimedia resource, preset feature information indicating features of a conference object to be encrypted may be obtained, and then the multimedia resource and the preset feature information are matched to obtain the target resource. For example: in the step S104, the multimedia resource may be matched with preset feature information, where the preset feature information is used to indicate features of the conference object to be encrypted, and a resource successfully matched with the preset feature information in the multimedia resource is obtained as a target resource.
Alternatively, different participating objects may be matched for their different characteristics in the multimedia asset. For example: the multimedia resource can be matched with the preset characteristic information by at least one of the following methods:
in the first mode, a video resource in the multimedia resource is matched with facial feature information carried in preset feature information, wherein the facial feature information is used for indicating facial features of conference participants to be encrypted.
And matching the video resource in the multimedia resource with the article characteristic information carried in the preset characteristic information, wherein the article characteristic information is used for indicating the characteristics of the article to be encrypted.
And matching the audio resource in the multimedia resource with sound characteristic information carried in preset characteristic information, wherein the sound characteristic information is used for indicating the sound characteristics of the participants to be encrypted.
Optionally, a blurring process or a mosaic process may be used for the video resource to encrypt the target resource, and a sound changing process (e.g., a tone changing process or a frequency changing process, etc.) may be used for the audio resource. For example: in the step S106, in the case that the resource type includes a video resource, acquiring a display area of the video resource on the video image; performing blurring processing or mosaic processing on the display area; and in the case that the resource type comprises the audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
Optionally, there may be one or more conference-participating sites participating in the teleconference, and the security levels of the conference-participating sites may be the same or different, for example, some conference-participating sites need to be kept secret, and some conference-participating sites do not need to be kept secret, so that the target conference-participating site that needs to be encrypted can be determined according to the security level of each conference-participating site. For example: before the step S102, a first privacy level corresponding to one or more meeting places and a second privacy level of the remote conference may be obtained, where the one or more meeting places are meeting places participating in the remote conference, the privacy level is used to indicate a privacy degree, a higher privacy level indicates a higher privacy degree, the first privacy level and the second privacy level are compared to obtain a meeting place with the first privacy level higher than the second privacy level, and the meeting place with the first privacy level higher than the second privacy level is used as a target meeting place.
Alternatively, the privacy level may be, but is not limited to, preset, such as: the privacy levels may include: both required and not required security, where the required security level is higher than the not required security level, the level requiring security may be represented by 1, and the level not requiring security may be represented by 0. The privacy level can also be divided into: the secret may be represented by 2, 1 and 0.
Alternatively, a second privacy level for the teleconference may be determined based on the first privacy level corresponding to one or more of the participating sites. For example: the method comprises the steps of receiving a first security level sent by one or more conference terminals in a conference site, and determining the security level with the lowest level in the first security level as a second security level of the teleconference.
In an alternative embodiment, taking the example of dividing the privacy level into privacy-needed and non-needed levels, fig. 2 is a schematic diagram of a method for confirming the privacy level of a teleconference according to an alternative embodiment of the present invention, as shown in fig. 2, before the conference starts, each conference site determines the list of conference participants, and retrieves the data of the respective privacy information base to determine the privacy level of each conference participant. The conference hall 1 is provided with 3 conference participants and a conference hall mark (corresponding to the goods in the conference hall), wherein the security level of the conference participants 1A (201) is 0, namely, the security is not needed; the security level of the conference participant 1B (202) is 1, namely the conference participant needs to be kept secret; the security level of the conference participant 1C (203) is 0, i.e. no security is needed; thus, the first security level of the meeting place 1 is 1(204), and the security level of the meeting place marker 1D (204) is 1, i.e. security is required.
The conference place 2 has 3 conference participants, wherein the privacy level of the conference participant 2A (206) is 1, namely the conference participant needs to be kept secret; the security level of the conference participant 2B (207) is 1, namely the conference participant needs to be kept secret; the security level of the conference participant 2C (208) is 0, i.e., no security is required; then the first security level of conference room 2 is 1, i.e. security is required 209.
The conference hall 3 has 3 conference participants, wherein the security level of the conference participant 3A (210) is 0, namely the security is not needed; the security level of the conference participant 3B (211) is 1, namely the conference participant needs to be kept secret; the privacy level of conference participant 3C (212) is 0, i.e. privacy is not required; then the first security level of conference room 3 is 0 (213).
Therefore, according to the privacy levels of the three conference sites, the second privacy level of the remote conference is 0 (214).
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, a multimedia resource encryption apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 3 is a block diagram of a multimedia resource encryption apparatus according to an embodiment of the present invention, as shown in fig. 3, the apparatus includes:
a first obtaining module 32, configured to obtain a multimedia resource, where the multimedia resource is a resource collected in a target meeting place in a teleconference;
a second obtaining module 34, coupled to the first obtaining module 32, configured to obtain, from the multimedia resource, a target resource corresponding to a conference participating object to be encrypted, where the conference participating object to be encrypted includes at least one of: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place;
and an encryption module 36, coupled to the second obtaining module 34, for encrypting the target resource according to the resource type of the target resource.
Alternatively, the multimedia resource encryption apparatus may be applied to a conference terminal or a server, etc., but is not limited thereto.
Optionally, the multimedia asset encryption device can be applied to, but not limited to, a scene of displaying assets. For example: and displaying scenes of audio and video resources in the teleconference, and the like.
Optionally, the multimedia resources may include, but are not limited to: video assets, audio assets, image assets, text assets, and the like.
Alternatively, the multimedia resources can be collected by, but not limited to, conference terminals (such as camera devices, sound collecting devices, and the like) located in conference sites and sent to the device for performing the security processing on the multimedia resources.
Optionally, the items to be encrypted in the target meeting place may include, but are not limited to: the items in the conference site with the security level or the items in the conference site needing security can be the items in the conference site. For example: security documents, security books, security documents, and the like.
By the device, the multimedia resources collected from the target meeting place are obtained, the target resources corresponding to the meeting objects to be encrypted are obtained from the multimedia resources, and the target resources are encrypted according to the resource types of the target resources, so that part of the resources corresponding to the meeting objects to be encrypted in the multimedia resources are encrypted, and confidential contents in the target meeting place are ensured to be processed in a confidential mode.
Fig. 4 is a block diagram of a second structure of the multimedia resource encryption apparatus according to the embodiment of the present invention, as shown in fig. 4, optionally, the second obtaining module 34 includes:
a matching unit 42, configured to match the multimedia resource with preset feature information, where the preset feature information is used to indicate features of a participating object to be encrypted;
and an obtaining unit 44, coupled to the matching unit 42, configured to obtain a resource, which is successfully matched with the preset feature information, in the multimedia resource as a target resource.
Optionally, in order to extract a target resource that needs to be encrypted from the multimedia resource, preset feature information indicating features of a conference object to be encrypted may be obtained, and then the multimedia resource and the preset feature information are matched to obtain the target resource.
Optionally, the matching unit 42 is configured to at least one of: matching video resources in the multimedia resources with facial feature information carried in preset feature information, wherein the facial feature information is used for indicating facial features of participants to be encrypted; matching video resources in the multimedia resources with article characteristic information carried in preset characteristic information, wherein the article characteristic information is used for indicating the characteristics of an article to be encrypted; and matching the audio resources in the multimedia resources with sound characteristic information carried in preset characteristic information, wherein the sound characteristic information is used for indicating the sound characteristics of the participants to be encrypted.
Alternatively, different participating objects may be matched for their different characteristics in the multimedia asset.
Optionally, the encryption module 36 comprises at least one of: the first encryption unit is used for acquiring a display area of the video resource on the video image under the condition that the resource type comprises the video resource; performing blurring processing or mosaic processing on the display area; and the second encryption unit is used for carrying out frequency conversion processing or tone conversion processing on the audio resource under the condition that the resource type comprises the audio resource.
Optionally, a blurring process or a mosaic process may be used for the video resource to encrypt the target resource, and a sound changing process (e.g., a tone changing process or a frequency changing process, etc.) may be used for the audio resource.
Fig. 5 is a block diagram of a third structure of a multimedia resource encryption apparatus according to an embodiment of the present invention, as shown in fig. 5, optionally, the apparatus further includes:
a third obtaining module 52, configured to obtain a first privacy level corresponding to one or more meeting places and a second privacy level of the teleconference, where the one or more meeting places are meeting places participating in the teleconference, the privacy level is used to indicate a secret-related degree, and a higher privacy level indicates a larger secret-related degree;
a comparison module 54, coupled to the third obtaining module 52, for comparing the first security level with the second security level;
and a fourth obtaining module 56, coupled between the comparing module 54 and the first obtaining module 32, configured to obtain the conference hall with the first security level higher than the second security level as the target conference hall.
Optionally, there may be one or more conference-participating sites participating in the teleconference, and the security levels of the conference-participating sites may be the same or different, for example, some conference-participating sites need to be kept secret, and some conference-participating sites do not need to be kept secret, so that the target conference-participating site that needs to be encrypted can be determined according to the security level of each conference-participating site.
Optionally, the third obtaining module 52 is configured to: receiving a first security level sent by one or more conference terminals in a conference site; the lowest one of the first privacy levels is determined as the second privacy level for the teleconference.
Alternatively, a second privacy level for the teleconference may be determined based on the first privacy level corresponding to one or more of the participating sites.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Example 3
In this embodiment, a multimedia resource encryption system is further provided, and fig. 6 is a block diagram of a multimedia resource encryption system according to an embodiment of the present invention, as shown in fig. 6, the system includes: a privacy processing device 62 and a target conference terminal 64, wherein,
the encryption processing device 62 is connected to the target conference terminal 64 and is configured to obtain a multimedia resource sent by the target conference terminal 64, where the multimedia resource is a resource collected by the target conference terminal 64 in the teleconference at the target conference site; acquiring a target resource corresponding to a to-be-encrypted conferencing object from a multimedia resource, wherein the to-be-encrypted conferencing object comprises at least one of the following: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place; and encrypting the target resource according to the resource type of the target resource.
Optionally, in this embodiment, the secrecy processing apparatus may be disposed in the target conference terminal, or may be an independent device. For example: the target conference terminal can carry the encryption processing device in a modularized manner; the above-mentioned encryption processing apparatus may also be a separate device, which may be provided in a conference site together with the target conference terminal, or may be provided on a server side that controls a teleconference.
Optionally, the secrecy processing means 62 is configured to: matching the multimedia resources with preset characteristic information, wherein the preset characteristic information is used for indicating characteristics of a participated object to be encrypted; and acquiring resources successfully matched with the preset characteristic information in the multimedia resources as target resources.
Optionally, the secrecy handling means 62 is adapted to at least one of: matching video resources in the multimedia resources with facial feature information carried in preset feature information, wherein the facial feature information is used for indicating facial features of participants to be encrypted; matching video resources in the multimedia resources with article characteristic information carried in preset characteristic information, wherein the article characteristic information is used for indicating the characteristics of an article to be encrypted; and matching the audio resources in the multimedia resources with sound characteristic information carried in preset characteristic information, wherein the sound characteristic information is used for indicating the sound characteristics of the participants to be encrypted.
Optionally, the secrecy handling means is for at least one of: under the condition that the resource type comprises a video resource, acquiring a display area of the video resource on a video image; performing blurring processing or mosaic processing on the display area; and in the case that the resource type comprises the audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
In an alternative embodiment, fig. 7 is a schematic diagram of a multimedia resource encryption system according to an alternative embodiment of the present invention for encrypting a video resource, as shown in fig. 7, a camera of a conference site 1 collects a video image (701) of a local conference site and a conference site, and sends the video image (702) to an image recognition module (705). The confidentiality judging module (704) reads that the confidentiality level of the conference stored in the confidentiality information configuration library (703) of the conference place 1 is 1, namely confidentiality is needed, the confidentiality judging module (704) obtains the confidentiality levels of all conference participants and the confidentiality level of a conference place marker from the confidentiality information configuration library (703), and if the confidentiality level of the conference participant 1A is 0, the confidentiality level of the conference participant 1B is 1, the confidentiality level of the conference participant 1C is 0, and the confidentiality level of the conference place marker 1D is 1. The confidentiality judgment module compares the confidentiality level of the conference with the confidentiality level of each conference participant to determine which conference participants need to be subjected to confidentiality treatment: only the conference participants 1B in the conference hall 1 need to be encrypted.
And the confidentiality judgment module sends the name or the number of the conference participant 1B needing confidentiality in the conference to the conference characteristic library (706). The feature library stores the facial feature information of the conference participants in the local conference and the feature information of the markers in the local conference. Extracting facial feature information of the conference participants 1B from the conference site feature library, and then sending the facial feature information to an image identification module (705); the secrecy judgment module sends the name or the number of the meeting place marker 1D needing to be kept secret to the meeting place feature library (706). The feature library stores the facial feature information of the conference participants in the local conference and the feature information of the markers in the local conference. Feature information of the local site marker 1D is extracted from the local site feature library and then sent to the image recognition module (705).
According to the facial feature information of the conference participant 1B and the feature information of the conference place marker 1D sent by the conference place feature library (706), the image identification module (705) acquires the matched facial region coordinates and range of the conference participant 1B and the coordinates and range of the conference place marker 1D from the video image of the conference place collected by the camera (708), and then sends the two coordinate and range data needing confidentiality processing to the image confidentiality processing module (709). The image encryption processing module (709) performs blurring or mosaic processing on the corresponding area of the meeting place picture transmitted from the camera head according to the coordinate and range data of the area to be subjected to encryption processing transmitted by the image recognition module (705), so that the face of the participant 1B and the meeting place marker 1D are blurred or mosaiced. The final processed image is sent to the video conference control center MCU (710) and is sent to the remote meeting place which is to see the local meeting place.
In an optional embodiment, fig. 8 is a schematic diagram of an audio resource being encrypted by a multimedia resource encryption system according to an optional embodiment of the present invention, as shown in fig. 8, a microphone of a conference room 1 collects an audio (801) of a speaker in a local conference room, sends the audio (802) to a voice recognition module (805), and a confidentiality judgment module (804) reads a confidentiality level of a conference of this time stored in a confidentiality information configuration library (803) of the local conference room 1, where the confidentiality level of the conference of this time is 1.
The confidentiality judgment module (804) acquires the confidentiality levels of all conference participants in the conference from the confidentiality information configuration library (803), if the conference participant 1A is 0, the conference participant 1B is 1 and the conference participant 1C is 0. The confidentiality judgment module (804) determines which conference participants need to carry out confidentiality treatment according to the comparison between the confidentiality level of the conference and the confidentiality level of each conference participant: only the conference participants 1B in the conference hall 1 need to be encrypted.
The secrecy judgment module sends the name or number of the conference participant 1B needing secrecy in the conference to the conference participant sound feature library (806) of the conference, extracts the sound feature information of the conference participant 1B from the conference participant sound feature library, and sends the sound feature information to the sound identification module (805), the sound identification module (805) performs matching detection on the sound feature information of the conference participant 1B sent by the sound feature library and the sound data of the current speaker collected from the microphone, and sends the matching result to the sound secrecy processing module (809).
The voice encryption processing module (809) determines whether the voice of the current speaker sent by the microphone needs to be subjected to frequency conversion or tone conversion processing according to the matching result sent by the voice recognition module (805). The final processed or non-processed speech is sent to the video conference control centre MCU 810, from where it is sent to the remote conference site where the local conference site is to be seen.
Alternatively, the secrecy processing device may be one or more secrecy processing devices, and the system includes: one or more conference-participating terminals, wherein one or more privacy-preserving processing devices correspond to the one or more conference-participating terminals one to one, the one or more conference-participating terminals correspond to the one or more conference-participating sites one to one, the one or more conference-participating sites are conference-participating sites participating in a teleconference, the one or more privacy-preserving processing devices are respectively connected with the corresponding one or more conference-participating terminals, each privacy-preserving processing device of the one or more privacy-preserving processing devices is used for preserving privacy and acquiring a first privacy level of the corresponding conference-participating site and a second privacy level of the teleconference, wherein the privacy levels are used for indicating the degree of involvement, and the higher the privacy levels are used for indicating the degree of involvement; comparing the first security level to the second security level; and under the condition that the first security level is higher than the second security level, taking the corresponding conference site as a target conference site.
Optionally, the secrecy processing means is for: receiving a first security level sent by one or more conference terminals in a conference site; the lowest one of the first privacy levels is determined as the second privacy level for the teleconference.
Optionally, the system further includes: the video conference system central control equipment MCU is connected with the secrecy processing device, and the secrecy processing device is also used for sending the encrypted multimedia resource to the MCU; and the MCU is used for sending the encrypted multimedia resources to a conference participating place participating in the teleconference.
Reference will now be made in detail to the alternative embodiments of the present invention.
An alternative embodiment of the present invention provides a method for encrypting multimedia resources in a remote video conference. The method comprises the following steps:
the first step is as follows: the conference terminal in each conference place generates a first privacy level of the conference place according to the privacy levels of the conference participants and the conference place markers in the conference place;
the second step is that: the system determines a second privacy level of the video conference according to the first privacy levels of all conference participating sites participating in the video conference.
The third step: comparing the security level of the conference with the security level of each conference site, and judging whether the output video and audio of the conference site need to be subjected to security processing;
the fourth step: if the output video and audio of the meeting place needs to be kept secret, the conference system can compare the second privacy level of the video conference with the privacy levels of local participants to determine which participants need to be kept secret.
The fifth step: and the conference terminal determines whether a local conference place has a marker to be subjected to secrecy operation according to the conference secrecy level.
And a sixth step: the conference terminal determines that the facial feature information and the sound information of the conference participants needing confidential processing are both recorded into the database.
The seventh step: the conference terminal determines that the characteristic information of the meeting place marker needing the secret processing is all recorded into the database.
Eighth step: when the conference starts, the conference terminal captures the image video of the conference site through the camera; then the image is sent to a secrecy processing module of the system;
the ninth step: and a secrecy processing module of the system matches the acquired video picture of the local meeting place according to the facial features of the personnel needing secrecy determined before the meeting, and performs blurring or mosaic processing on the matched faces of the personnel needing secrecy.
The tenth step: and a secrecy processing module of the system matches the sound of the speaker in the local meeting place according to the sound characteristics of the personnel needing secrecy determined before the meeting, and specially processes the sound of the speaker if the matching is successful.
The eleventh step: and a secrecy processing module of the system matches the acquired local meeting place video picture according to the meeting place marker feature needing secrecy determined before the meeting, and performs blurring or mosaic processing on the matched meeting place marker needing secrecy if the matching is successful.
By adopting the multimedia resource encryption method, the confidentiality of the participants can be improved, and the conference place does not need to be manually arranged in advance. The conference security level and the conference participants needing to be appointed can be kept secret through configuration, and the conference security level and the conference participants needing to be appointed are flexible and convenient.
Example 4
An embodiment of the present invention further provides a storage medium including a stored program, where the program executes any one of the methods described above.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, acquiring multimedia resources, wherein the multimedia resources are acquired in a target meeting place in the teleconference;
s2, obtaining a target resource corresponding to a to-be-encrypted conferencing object from the multimedia resource, where the to-be-encrypted conferencing object includes at least one of: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place;
and S3, encrypting the target resource according to the resource type of the target resource.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide a processor configured to execute a program, where the program executes to perform any of the steps in the method.
Optionally, in this embodiment, the program is configured to perform the following steps:
s1, acquiring multimedia resources, wherein the multimedia resources are acquired in a target meeting place in the teleconference;
s2, obtaining a target resource corresponding to a to-be-encrypted conferencing object from the multimedia resource, where the to-be-encrypted conferencing object includes at least one of: the method comprises the following steps that a target and meeting personnel to be encrypted in a meeting place, and an article to be encrypted in the target meeting place;
and S3, encrypting the target resource according to the resource type of the target resource.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. A method for encrypting multimedia resources, comprising:
acquiring multimedia resources, wherein the multimedia resources are acquired in a target conference-participating site in a remote conference, and the target conference-participating site is a conference-participating site with a security level higher than that of the conference;
acquiring a target resource corresponding to a to-be-encrypted conferee object from the multimedia resource, wherein the to-be-encrypted conferee object comprises at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted;
and encrypting the target resource according to the resource type of the target resource.
2. The method of claim 1, wherein obtaining the target resource corresponding to the conferee object to be encrypted from the multimedia resource comprises:
matching the multimedia resource with preset characteristic information, wherein the preset characteristic information is used for indicating the characteristics of the participated object to be encrypted;
and acquiring resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
3. The method of claim 2, wherein matching the multimedia resource with the preset feature information comprises at least one of:
matching the video resources in the multimedia resources with facial feature information carried in the preset feature information, wherein the facial feature information is used for indicating the facial features of the participants to be encrypted;
matching the video resource in the multimedia resource with article characteristic information carried in the preset characteristic information, wherein the article characteristic information is used for indicating the characteristics of the article to be encrypted;
and matching the audio resources in the multimedia resources with sound characteristic information carried in the preset characteristic information, wherein the sound characteristic information is used for indicating the sound characteristics of the participants to be encrypted.
4. The method of claim 1, wherein encrypting the target resource according to its resource type comprises at least one of:
under the condition that the resource type comprises a video resource, acquiring a display area of the video resource on a video image; performing blurring processing or mosaic processing on the display area;
and under the condition that the resource type comprises an audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
5. The method according to any of claims 1 to 4, wherein prior to acquiring the multimedia asset, the method further comprises:
acquiring a first security level corresponding to one or more meeting places and a second security level of the remote conference, wherein the one or more meeting places are the meeting places participating in the remote conference, the security level is used for indicating the security degree, and the higher the security level is, the larger the security degree is;
comparing the first privacy level to the second privacy level;
and acquiring the conference meeting place with the first security level higher than the second security level as the target conference meeting place.
6. The method of claim 5, wherein obtaining the first privacy level corresponding to the one or more meeting places and the second privacy level of the teleconference comprises:
receiving the first privacy level sent by the conference terminals in the one or more conference sites;
determining a privacy level of a lowest level of the first privacy levels as the second privacy level of the teleconference.
7. A multimedia resource encryption apparatus, comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring multimedia resources, the multimedia resources are acquired in a target conference meeting place in a remote conference, and the target conference meeting place is a conference meeting place with a higher security level than the conference security level;
a second obtaining module, configured to obtain, from the multimedia resource, a target resource corresponding to a to-be-encrypted conferencing object, where the to-be-encrypted conferencing object includes at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted;
and the encryption module is used for encrypting the target resource according to the resource type of the target resource.
8. The apparatus of claim 7, wherein the second obtaining module comprises:
the matching unit is used for matching the multimedia resources with preset characteristic information, wherein the preset characteristic information is used for indicating characteristics of the participated object to be encrypted;
and the acquisition unit is used for acquiring the resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
9. The apparatus of claim 7, wherein the encryption module comprises at least one of:
the first encryption unit is used for acquiring a display area of the video resource on a video image under the condition that the resource type comprises the video resource; performing blurring processing or mosaic processing on the display area;
and the second encryption unit is used for carrying out frequency conversion processing or tone conversion processing on the audio resource under the condition that the resource type comprises the audio resource.
10. The apparatus of any one of claims 7 to 9, further comprising:
a third obtaining module, configured to obtain a first privacy level corresponding to one or more meeting places and a second privacy level of the teleconference, where the one or more meeting places are the meeting places participating in the teleconference, the privacy level is used to indicate a privacy degree, and a higher privacy level indicates a greater privacy degree;
a comparison module for comparing the first privacy level with the second privacy level;
and the fourth obtaining module is used for obtaining the conference meeting place with the first security level higher than the second security level as the target conference meeting place.
11. A multimedia asset encryption system, comprising: a secrecy processing device and a target conference terminal, wherein,
the privacy processing device is connected with the target conference terminal and is used for acquiring multimedia resources sent by the target conference terminal, wherein the multimedia resources are acquired by the target conference terminal in a target conference site in a teleconference, and the target conference site is a conference site with a privacy level higher than that of the conference; acquiring a target resource corresponding to a to-be-encrypted conferee object from the multimedia resource, wherein the to-be-encrypted conferee object comprises at least one of the following: the target and meeting persons to be encrypted in the meeting place, and the target and meeting place articles to be encrypted; and encrypting the target resource according to the resource type of the target resource.
12. The system of claim 11, wherein the cryptographic processing device is configured to: matching the multimedia resource with preset characteristic information, wherein the preset characteristic information is used for indicating the characteristics of the participated object to be encrypted; and acquiring resources successfully matched with the preset characteristic information in the multimedia resources as the target resources.
13. The system of claim 11, wherein the cryptographic processing device is configured to at least one of: under the condition that the resource type comprises a video resource, acquiring a display area of the video resource on a video image; performing blurring processing or mosaic processing on the display area; and under the condition that the resource type comprises an audio resource, performing frequency conversion processing or tone conversion processing on the audio resource.
14. The system according to any one of claims 11 to 13, wherein the encryption processing apparatus is one or more encryption processing apparatuses, the system comprising: one or more conference-participating terminals, wherein the one or more privacy processing devices correspond to the one or more conference-participating terminals one to one, the one or more conference-participating terminals correspond to one or more conference-participating sites one to one, the one or more conference-participating sites are conference-participating sites participating in the remote conference,
the one or more security processing devices are respectively connected with the one or more corresponding conference-participating terminals, and each of the one or more security processing devices is used for acquiring a first security level of a corresponding conference-participating place and a second security level of the remote conference, wherein the security levels are used for indicating the security degree, and the higher the security level is, the larger the security degree is; comparing the first privacy level to the second privacy level; and under the condition that the first security level is higher than the second security level, taking the corresponding conference site as the target conference site.
15. The system according to any one of claims 11 to 13, further comprising: the central control equipment MCU of the video conference system, wherein,
the MCU is connected with the encryption processing device, and the encryption processing device is also used for sending the encrypted multimedia resources to the MCU;
and the MCU is used for sending the encrypted multimedia resources to a conference site participating in the teleconference.
16. A storage medium, comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 6.
17. A processor, characterized in that the processor is configured to run a program, wherein the program when running performs the method of any of claims 1 to 6.
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| CN110446105B (en) * | 2019-09-20 | 2021-11-16 | 网易（杭州）网络有限公司 | Video encryption and decryption method and device |
| CN111475779B (en) * | 2020-05-19 | 2023-11-03 | 昆明闻讯实业有限公司 | Image processing method, device, equipment and storage medium |
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