CN112383748B - Video information storage method and device - Google Patents
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- CN112383748B CN112383748B CN202011203565.1A CN202011203565A CN112383748B CN 112383748 B CN112383748 B CN 112383748B CN 202011203565 A CN202011203565 A CN 202011203565A CN 112383748 B CN112383748 B CN 112383748B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention discloses a video information storage method and a device, wherein the method comprises the following steps: acquiring video information; acquiring characteristic information of shooting objects in the video information, wherein the shooting objects in the video information are one; storing the video information and the characteristic information into individual blocks corresponding to the shooting objects, and broadcasting the individual blocks to a blockchain network, wherein different individual blocks in the blockchain network correspond to the shooting objects in different video information. The video information storage method and the video information storage system not only can avoid the waste of a large amount of storage resources caused by the fact that the video information is stored locally and prevent the video information from being lost, but also can effectively prevent the video information from being tampered, ensure the safety of video related information, avoid unnecessary loss to each department and each shooting object, and most importantly can realize that each node in a blockchain network can safely share the video information and the characteristic information of a specific shooting object.
Description
Technical Field
The invention relates to the technical field of blockchains, in particular to a video information storage method and device.
Background
At present, a large amount of storage resources are consumed due to the huge amount of monitoring video information, and potential safety hazards are easily caused due to the possibility of being tampered. Therefore, how to store video information safely and efficiently is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the invention provides a video information storage method and a video information storage device, which are used for solving the problems that video information is easy to tamper and difficult to store due to the lack of a safe and efficient storage method in the prior art.
In order to achieve the above object, a first aspect of the present invention provides a video information storage method, comprising:
acquiring video information;
acquiring characteristic information of shooting objects in the video information, wherein the shooting objects in the video information are one;
storing the video information and the characteristic information into individual blocks corresponding to the shooting objects, and broadcasting the individual blocks to a blockchain network, wherein different individual blocks in the blockchain network correspond to the shooting objects in different video information.
In some embodiments, the storing the video information and the feature information in a personal zone corresponding to the photographic subject includes:
generating a hash value according to the video information and the characteristic information;
and storing the hash value into a block header field of a personal block corresponding to the shooting object, and storing the video information and the characteristic information into a data field of the personal block corresponding to the shooting object.
In some embodiments, after storing the video information and the feature information in a personal area corresponding to the shooting object, the method further includes:
and establishing a corresponding relation between the identity information of the shooting object and the hash value.
In some embodiments, the feature information includes behavior information, and the acquiring feature information of a shooting object in the video information includes:
acquiring first audio information in the video information, and acquiring a group of pictures GOP according to the video information;
and acquiring behavior information of a shooting object in the video information according to the GOP and the first audio information.
In some embodiments, the acquiring behavior information of the shooting object in the video information according to the GOP and the first audio information includes:
acquiring expression and motion information of the shooting object according to a difference frame P frame in the GOP;
and acquiring second audio information matched with the expression and EMF information in the first audio information, wherein the second audio information is the audio information corresponding to the expression and EMF information at the same time.
In some embodiments, the feature information further includes behavior habit information, and after the second audio information matched with the expression and gesture information in the first audio information is obtained, the method further includes:
and acquiring behavior habit information of the shooting object according to the expression and motion information and the second audio information.
In order to achieve the above object, a second aspect of the present invention provides a video information storage device comprising:
the acquisition module is used for acquiring video information; the characteristic information of the shooting objects in the video information is obtained, and the shooting objects in the video information are one;
the storage module is used for storing the video information and the characteristic information into personal blocks corresponding to the shooting objects, and different personal blocks in the blockchain network correspond to the shooting objects in different video information;
and the broadcasting module is used for broadcasting the personal block to a block chain network.
In some embodiments, the storage module is configured to generate a hash value according to the video information and the feature information; and storing the hash value into a block header field of a personal block corresponding to the shooting object, and storing the video information and the characteristic information into a data field of the personal block corresponding to the shooting object.
In some embodiments, the apparatus further includes a building module, where the building module is configured to build a correspondence between the identity information of the photographic subject and the hash value.
In some embodiments, the feature information includes behavior information, and the obtaining module is configured to obtain first audio information in the video information, and obtain a group of pictures GOP according to the video information; and acquiring behavior information of a shooting object in the video information according to the GOP and the first audio information.
The invention has the following advantages:
according to the video information storage method provided by the embodiment of the invention, the video information is acquired, the characteristic information of the shooting objects in the video information is acquired, one shooting object in the video information is selected, the video information and the characteristic information are stored in the personal blocks corresponding to the shooting objects, the personal blocks are broadcasted to the block chain network, and different personal blocks in the block chain network correspond to the shooting objects in different video information. Different personal blocks can be established aiming at different shooting objects, video information and characteristic information of the shooting objects are stored by utilizing a block chain network, so that not only can waste of a large amount of storage resources caused by the fact that the video information is stored locally be avoided, video information is prevented from being lost, but also the video information is effectively prevented from being tampered, the safety of video related information is ensured, unnecessary loss caused by the video related information to each department and each shooting object is avoided, and most importantly, each node in the block chain network can safely share the video information and the characteristic information of a certain specific shooting object.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention.
Fig. 1 is a flowchart of a video information storage method according to embodiment 1 of the present invention;
fig. 2 is a flowchart of storing video information and feature information in a personal area corresponding to a shooting object according to embodiment 2 of the present invention;
fig. 3 is a second flowchart of storing video information and feature information in a personal block corresponding to a shooting object according to embodiment 3 of the present invention;
fig. 4 is a second flowchart of a video information storage method according to embodiment 4 of the present invention;
fig. 5 is a flowchart of acquiring feature information of a shooting object in video information according to embodiment 5 of the present invention;
fig. 6 is a flowchart of acquiring behavior information of a shooting object in video information according to embodiment 6 of the present invention;
fig. 7 is a flowchart of acquiring behavior habit information of a shooting object in video information according to embodiment 7 of the present invention;
fig. 8 is a schematic diagram of a video information storage device according to embodiment 8 of the present invention;
fig. 9 is a second schematic structural diagram of the video information storage device according to embodiment 9 of the present invention.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a video information storage method, which is applied to a video information storage device, and the method may include the following steps:
and step 1, obtaining video information.
Wherein the video information may comprise video recordings.
In the embodiment of the invention, the video information storage device can be arranged at nodes such as security system nodes of departments such as enterprises or public institutions, monitoring system nodes of families or public places, public security system nodes and the like.
For example, when the video information storage device is provided at a public security system node, a public security system person can acquire video information of a party through the video information storage device when a question is asked about the party.
And 2, acquiring characteristic information of shooting objects in the video information, wherein the number of the shooting objects in the video information is one.
In order to facilitate storage of video information corresponding to the photographing subjects, only one photographing subject may be included in the acquired video information.
After the video information is acquired, the video information storage device may further acquire feature information of the shooting object according to the video information.
And 3, storing the video information and the characteristic information into individual blocks corresponding to the shooting objects, and broadcasting the individual blocks to a block chain network, wherein different individual blocks in the block chain network correspond to the shooting objects in different video information.
After the feature information of the photographing object is acquired, the video information storage device may store the video information together with the feature information into a personal block corresponding to the photographing object, and uplink the personal block. The video information storage device can respectively establish different personal blocks for different shooting correspondence, so that the video information can be stored and inquired conveniently.
As can be seen from the foregoing steps 1-3, in the video information storage method provided by the embodiment of the present invention, video information is obtained, feature information of a shooting object in the video information is obtained, the shooting object in the video information is one, the video information and the feature information are stored in a personal block corresponding to the shooting object, and the personal block is broadcast to a blockchain network, where different personal blocks in the blockchain network correspond to shooting objects in different video information. Different personal blocks can be established aiming at different shooting objects, video information and characteristic information of the shooting objects are stored by utilizing a block chain network, so that not only can waste of a large amount of storage resources caused by the fact that the video information is stored locally be avoided, video information is prevented from being lost, but also the video information is effectively prevented from being tampered, the safety of video related information is ensured, unnecessary loss caused by the video related information to each department and each shooting object is avoided, and most importantly, each node in the block chain network can safely share the video information and the characteristic information of a certain specific shooting object.
In the video information storage device, when storing video information and feature information in a personal block corresponding to a subject, the video information storage device may store the time and place at which video information is acquired in the personal block so that the video information and the time and place at which video information is acquired are mapped and stored together.
In some embodiments, as shown in fig. 2, the storing the video information and the feature information in the personal area corresponding to the shooting object (i.e. step 3) may include the following steps:
step 31, generating hash value according to the video information and the characteristic information.
After the feature information is acquired, the video information storage device can generate hash values corresponding to the video information and the feature information through a hash algorithm. The hash value calculated based on the video information and the feature information is unique, and can directly reflect the contents of the video information and the feature information, even if only 1-bit contents in the video information and the feature information are modified, the hash values corresponding to the modified video information and the modified feature information are completely different.
Step 32, storing the hash value in the block header field of the individual block corresponding to the photographing object, and storing the video information and the feature information in the data field of the individual block corresponding to the photographing object.
After generating the hash values corresponding to the video information and the feature information, the video information storage device may store the video information, the feature information, and the hash values in the individual blocks corresponding to the photographing object, specifically, may store the hash values in the block header fields of the individual blocks, and may store the video information and the feature information in the data fields of the individual blocks. The personal block corresponding to each shooting object comprises two parts of contents, one part is a hash value corresponding to the video information and the characteristic information, and the other part is the video information and the characteristic information.
In some embodiments, as shown in fig. 3, after storing the video information and the feature information in the personal area corresponding to the shooting object (i.e. step 32), the method may further include the following steps:
step 33, establishing a correspondence between the identity information of the shooting object and the hash value.
The identity information may include any information that can characterize the identity of the photographic subject, such as an identification card number, a name, a passport number, and the like.
The video information storage device can establish a corresponding relation between the identity information of the shooting object and the hash value, and can inquire according to the corresponding relation when the video information and the characteristic information need to be inquired. Further, since the hash value calculated based on the video information and the feature information is unique, it is possible to determine whether or not the video information and the feature information, which are obtained by the query, are tampered with, based on the hash value.
In some embodiments, as shown in fig. 4, after broadcasting the personal block to the blockchain network (i.e., step 3), the method may further include the following steps:
and 4, receiving a video information inquiry request, inquiring the corresponding relation between the locally stored identity information and the hash value according to the identity information, and obtaining the hash value corresponding to the identity information.
When receiving the video information inquiry request, the video information storage device can compare the corresponding relation between the locally stored identity information and the hash value according to the identity information carried in the video information inquiry request, and can obtain the hash value corresponding to the identity information carried in the video information inquiry request.
And step 5, acquiring video information and behavior information corresponding to the identity information from the blockchain network according to the hash value.
The video information storage device can request to obtain video information and behavior information corresponding to the identity information from the blockchain network according to the hash value, and the billing node in the blockchain network can determine the block identifier (or the block address) corresponding to the hash value according to the distributed hash table storing the corresponding relation between the hash value and the block identifier (or the block address), so that the personal block storing the video information and the characteristic information corresponding to the hash value is determined, and the video information and the characteristic information are returned to the video information storage device.
It should be noted that, if the data size of the video information and the feature information is too large, the video information storage device broadcasts the personal block to the blockchain network (i.e. step 3), and the blockchain network may further divide the personal block into a plurality of blocks. When the video information storage device acquires video information and feature information from the blockchain network, the plurality of blocks can be acquired simultaneously by a plurality of servers.
In some embodiments, the characteristic information includes behavioral information; as shown in fig. 5, the step of obtaining the feature information of the shooting object in the video information (i.e. step 2) may include the following steps:
step 21, obtaining the first audio information in the video information, and obtaining the group of pictures GOP according to the video information.
The original image data in the digital media video is encoded by adopting an H.264 compression format, the encoder encodes a plurality of images to produce a multi-section group of pictures (Group of Pictures, GOP), and the GOP is a group of continuous pictures, consists of an I frame and a plurality of B/P frames and is a basic unit for accessing a video image encoder and a decoder, and the arrangement sequence thereof is repeated until the image is finished.
When a GOP is acquired, individual natural sequence images generated by compressed video pictures are grouped, wherein a first key frame I frame is used as a first group of initial frames, and a B/P frame before a second key frame I is used as a first group of end frames. Similarly, multiple GOPs can be acquired.
Step 22, according to the GOP and the first audio information, behavior information of the shooting object in the video information is obtained.
The behavior information may include expression and motion information, audio information, and the like.
The video information storage device may acquire behavior information such as expression and motion information and audio information of the photographic subject according to the GOP and the first audio information.
In some embodiments, as shown in fig. 6, the capturing behavior information of the shooting object in the video information according to the GOP and the first audio information (i.e. step 22) may include the following steps:
step 221, obtaining the expression and motion information of the shooting object according to the difference frame P frame in the GOP.
The expression and gesture information may include any information describing states of an object to be photographed, such as expression, motion, and mouth shape.
It should be noted that the feature information may further include face recognition information of the photographed object, and the video information storage device may further obtain the face recognition information of the photographed object according to the key frame I frame.
Step 222, obtaining second audio information matched with the expression and EMF information in the first audio information, where the second audio information is the audio information corresponding to the expression and EMF information at the same time.
The audio information may include, among other things, sound text, sound, etc.
Since the first audio information may include a plurality of second audio information, different sound-producing objects have different second audio information, the video information storage device may compare the expression and motion information corresponding to the same time with the second audio information, and if the expression and motion information corresponding to the same time matches with the second audio information (for example, the mouth shape matches with the sound), the video information storage device may determine the second audio information as the audio information of the shooting object.
In some embodiments, the characteristic information further comprises behavioral habit information; as shown in fig. 7, after the second audio information (i.e. step 222) matching with the expression and gesture information in the first audio information is obtained, the method may further include the following steps:
step 223, obtaining behavior habit information of the shooting object according to the expression and motion information and the second audio information.
The video information storage device may count the expression gesture information and the second audio information, and if the frequency of occurrence of a certain expression gesture information or the second audio information exceeds a preset threshold, the expression gesture information or the second audio information may be determined as behavior habit information of the shooting object.
Based on the same technical concept, the embodiment of the present invention further provides a video information storage device, as shown in fig. 8, which may include:
an acquisition module 101 for acquiring video information; and the characteristic information of the shooting objects in the video information is acquired, wherein the shooting objects in the video information are one.
The storage module 102 is configured to store the video information and the feature information in individual blocks corresponding to the photographed object, where different individual blocks in the blockchain network correspond to different photographed objects in the video information.
A broadcasting module 103 for broadcasting the personal block to the blockchain network.
In some embodiments, the storage module 102 is specifically configured to:
generating a hash value according to the video information and the characteristic information;
the hash value is stored in a block header field of a personal block corresponding to the photographing object, and the video information and the feature information are stored in a data field of the personal block corresponding to the photographing object.
In some embodiments, as shown in fig. 9, the video information storage device further comprises a setup module 104; the establishing module 104 is configured to establish a correspondence between the identity information of the photographic subject and the hash value.
In some embodiments, the feature information includes behavior information, and the obtaining module 101 is specifically configured to:
acquiring first audio information in video information, and acquiring a group of pictures GOP according to the video information;
and acquiring behavior information of the shooting object in the video information according to the GOP and the first audio information.
In some embodiments, the acquisition module 101 is specifically further configured to:
acquiring expression and motion information of a shooting object according to a difference frame P frame in the GOP;
and acquiring second audio information matched with the expression and EMF information in the first audio information, wherein the second audio information is the audio information corresponding to the expression and EMF information at the same time.
In some embodiments, the acquisition module 101 is specifically further configured to:
and acquiring behavior habit information of the shooting object according to the expression and gesture information and the second audio information.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (6)
1. A video information storage method, comprising:
acquiring video information;
acquiring characteristic information of shooting objects in the video information, wherein the shooting objects in the video information are one;
storing the video information and the characteristic information into individual blocks corresponding to the shooting objects, and broadcasting the individual blocks to a blockchain network, wherein different individual blocks in the blockchain network correspond to the shooting objects in different video information;
the obtaining the characteristic information of the shooting object in the video information comprises the following steps:
acquiring first audio information in the video information, and acquiring a group of pictures GOP according to the video information;
acquiring behavior information of a shooting object in the video information according to the GOP and the first audio information;
the step of obtaining behavior information of a shooting object in the video information according to the GOP and the first audio information includes:
acquiring expression and motion information of the shooting object according to a difference frame P frame in the GOP;
acquiring second audio information matched with the expression and EMF information in the first audio information, wherein the second audio information is the audio information corresponding to the expression and EMF information at the same time;
the characteristic information further includes behavior habit information, and after the second audio information matched with the expression and gesture information in the first audio information is obtained, the method further includes:
and acquiring behavior habit information of the shooting object according to the expression and motion information and the second audio information.
2. The method according to claim 1, wherein the storing the video information and the feature information into the personal zone corresponding to the photographic subject comprises:
generating a hash value according to the video information and the characteristic information;
and storing the hash value into a block header field of a personal block corresponding to the shooting object, and storing the video information and the characteristic information into a data field of the personal block corresponding to the shooting object.
3. The method according to claim 2, wherein after storing the video information and the feature information in the personal area corresponding to the subject, further comprising:
and establishing a corresponding relation between the identity information of the shooting object and the hash value.
4. A video information storage device, comprising:
the acquisition module is used for acquiring video information; the characteristic information of the shooting objects in the video information is obtained, and the shooting objects in the video information are one;
a storage module for storing the video information and the feature information into a personal block corresponding to the shooting object;
the broadcasting module is used for broadcasting the personal blocks to a block chain network, and different personal blocks in the block chain network correspond to shooting objects in different video information;
the obtaining the characteristic information of the shooting object in the video information comprises the following steps:
acquiring first audio information in the video information, and acquiring a group of pictures GOP according to the video information;
acquiring behavior information of a shooting object in the video information according to the GOP and the first audio information;
the step of obtaining behavior information of a shooting object in the video information according to the GOP and the first audio information includes:
acquiring expression and motion information of the shooting object according to a difference frame P frame in the GOP;
acquiring second audio information matched with the expression and EMF information in the first audio information, wherein the second audio information is the audio information corresponding to the expression and EMF information at the same time;
the characteristic information further comprises behavior habit information, and the acquisition module is further used for:
and acquiring behavior habit information of the shooting object according to the expression and motion information and the second audio information.
5. The apparatus of claim 4, wherein the storage module is configured to generate a hash value based on the video information and the feature information; and storing the hash value into a block header field of a personal block corresponding to the shooting object, and storing the video information and the characteristic information into a data field of the personal block corresponding to the shooting object.
6. The apparatus of claim 5, further comprising a building module configured to build a correspondence between the identity information of the photographic subject and the hash value.
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