CN112351254A - Monitoring video coding and decoding device - Google Patents
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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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
Abstract
The embodiment of the disclosure discloses a monitoring video coding and decoding device. One embodiment of the apparatus comprises: video acquisition device, detection device, video coding device, storage transmission device, wherein: the video acquisition device is in communication connection with the video coding device, and is used for acquiring video information in a monitoring range and sending the video information to the video coding device; the detection device is in communication connection with the video acquisition device, wherein the detection device is used for detecting the video information acquired by the video acquisition device; the video coding device is in communication connection with the storage and transmission device, and is used for receiving the video information sent by the video acquisition device and carrying out coding processing on the video information to generate a video coding stream; the video coding device is also used for sending the video coding stream to the storage transmission device. The implementation mode can effectively improve the video coding performance of the monitoring system, and saves energy consumption and transmission bandwidth.
Description
Technical Field
The disclosed embodiment relates to the technical field of information transmission, in particular to a monitoring video coding and decoding device.
Background
As machine vision technology has made breakthrough in recent years, the highlighting of various visual tasks has also accelerated its popularity in a number of application areas, including video surveillance. In the traditional video monitoring application, a front-end camera carries out video acquisition and compression coding, a code stream is transmitted through a network, and finally, the code stream is played back or stored at a back end.
However, the following technical problems are generally encountered in the video acquisition and compression coding using a conventional front-end camera:
firstly, the traditional video coding and decoding algorithm mechanically inputs all collected video frames into an encoder indiscriminately, so that the requirement of a modern video monitoring system on intelligent processing cannot be met, and the power consumption and transmission bandwidth of the system are increased;
second, the conventional detection device usually detects the feature information sent by the video acquisition device, and cannot start the detection mode in advance, so that the video encoding device cannot start the preset encoding mode in advance, and thus part of the preset video encoding stream forms a missing state.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Some embodiments of the present disclosure provide a surveillance video codec device to solve one or more of the technical problems mentioned in the background section above.
In a first aspect, some embodiments of the present disclosure provide a surveillance video encoding and decoding apparatus, including: video acquisition device, detection device, video coding device, storage transmission device, wherein: the video acquisition device is in communication connection with the video coding device, wherein the video acquisition device is used for acquiring video information in a monitoring range and sending the video information to the video coding device; the detection device is in communication connection with the video acquisition device, wherein the detection device is used for detecting video information acquired by the video acquisition device; the video coding device is in communication connection with the storage and transmission device, and is used for receiving video information sent by the video acquisition device and performing coding processing on the video information to generate a video coding stream; the video coding device is also used for sending the video coding stream to a storage transmission device.
In some embodiments, the storage and transmission device is configured to receive a video encoded stream sent by the video encoding device, and store and transmit the video encoded stream.
In some embodiments, the video capture device is further configured to perform feature extraction processing on the captured video information to generate feature extraction information, and send the feature extraction information to the detection device.
In some embodiments, the detection device is further configured to receive the feature extraction information, and generate a start instruction in response to the feature extraction information meeting a preset condition.
In some embodiments, the above video encoding apparatus further comprises a triggering device, wherein: the trigger device is in communication connection with the detection device, and the detection device is used for sending a starting instruction to the trigger device; the trigger device is used for receiving the starting instruction sent by the detection device and starting the preset coding mode of the video coding device according to the starting instruction.
In some embodiments, the encoding the video information to generate a video encoded stream includes: responding to the video coding device to start a preset coding mode, and performing preset coding processing on the video information to generate a preset video coding stream; and in response to the video coding device not starting a preset coding mode, performing standard coding processing on the video information to generate a standard video coding stream.
In some embodiments, the above detection device further comprises a sensor device, wherein: the sensor device is in communication connection with the trigger device and is used for acquiring sensing information and generating a starting instruction according to the acquired sensing information; the sensor device is also used for sending the starting instruction to the trigger device.
In some embodiments, the surveillance video codec device further includes a coded stream buffer device and a display device, wherein: the coded stream caching device is in communication connection with the video coding device, and the video coding device is used for sending the video coded stream to the coded stream caching device; the coded stream caching device is used for receiving the video coded stream sent by the video coding device; the encoded stream buffer device is in communication connection with the display device, and is configured to send the video encoded stream to the display device.
In some embodiments, the display device is configured to receive a video encoded stream sent by the encoded stream buffering device, and control the video encoded stream to be displayed.
In some embodiments, the controlling the video coding stream to perform split-screen display includes: in response to the fact that the video coding stream is determined to be a preset video coding stream, controlling a corresponding screen of the preset video coding stream to display; and controlling a corresponding screen of the standard video coding stream to carry out standard display in a display device in response to the fact that the video coding stream is determined to be the standard video coding stream.
The above embodiments of the present disclosure have the following advantages: by the monitoring video coding and decoding device of some embodiments of the present disclosure, the video content is intelligently processed by classification, identification, segmentation, etc., so that energy consumption and transmission bandwidth can be saved. Specifically, the inventors found that the reason for the performance of the related monitoring system to be low is: the collected information is not classified, and the video frames without extra information are not processed in a skipping mode (standard coding). Based on this, the monitoring video coding and decoding device of some embodiments of the present disclosure includes not only the video capture device and the video coding device, but also the detection device. In the video acquisition process, the acquired video information is detected through the detection device, so that the video coding device can classify the acquired video information conveniently. And because the detection device participates, the trigger device can effectively control different video coding modes in the video coding device, can effectively classify the video information, and can carry out different coding modes according to the classification result. Therefore, by the variable-quality coding mode, the video coding performance of the monitoring system can be effectively improved under the same code rate condition, and the energy consumption and the transmission bandwidth are saved.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
Fig. 1 is an exemplary system architecture diagram of a surveillance video codec device according to some embodiments of the present disclosure;
FIG. 2 is a schematic block diagram of one embodiment of a surveillance video codec device according to some embodiments of the present disclosure;
fig. 3 is a schematic structural diagram of yet another embodiment of a surveillance video codec device according to some embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of yet another embodiment of a surveillance video codec device according to some embodiments of the present disclosure;
fig. 5 is a schematic diagram of a display device in a surveillance video codec device according to some embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 illustrates an exemplary system architecture 100 of a surveillance video codec device according to an embodiment of the disclosure.
Referring to fig. 1, the system architecture 100 may include a video capture device 101, a detection device 102, a video encoding device 103, a storage and transmission device 104, a trigger device 105, a sensor device 106, an encoded stream buffer device 107, a display device 108, a network 109, a network 110, a network 111, a network 112, and a network 113. The network 109 is used as a medium for providing a communication link between the video capture device 101 and the detection device 102. Network 110 is the medium used to provide a communication link between video capture device 101 and video encoding device 103. Network 111 is the medium used to provide a communication link between video encoding device 103 and storage transmission device 104. The network 111 also serves as a medium for providing a communication link between the video encoding apparatus 103 and the encoded stream buffering apparatus 107. The network 112 is used to detect the medium providing the communication link between the device 102 and the triggering device 105. The network 113 is used to encode the medium that provides the communication link between the stream buffering device 107 and the display device 108. Network 109, network 110, network 111, network 112, and network 113 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few.
The video capture device 101 may interact with the detection device 102 via the network 109 to send feature extraction information. The video capture device 101 may be any of a variety of video information capture devices including, but not limited to, optical image sensors, infrared sensors, electronic radars, and the like.
The detection device 102 may interact with the triggering device 105 via the network 112 to send the activation instruction. The detection device 102 may include, but is not limited to, a photoelectric encoder, an induction synchronizer, a pulse encoder, and the like.
The sensor device 106 may be a function control in the detection device 102 or may be a separate sensing device. The sensor device 106 is configured to detect an event or change in the environment and transmit the detected information to other electronic devices.
The triggering device 105 may be a function control in the video encoding device 103 or may be a separate triggering device. The triggering device 105 is used to switch the video encoding mode in the video encoding device 103.
The video encoding device 103 may also interact with the encoded stream buffering device 107 via the network 111 to transmit the video encoded stream. The encoded stream buffer device 107 is used to store and transmit the received video encoded stream in a classified manner. The encoded stream buffering means 107 may be various electronic devices including: one or more processors; a storage device having one or more programs stored thereon, which when executed by one or more processors, cause the one or more processors to perform functions as described in the first aspect.
The encoded stream buffering means 107 may interact with the display means 108 via the network 113 to transmit the video encoded stream. The display device 108 may include, but is not limited to, a cathode ray tube display, a plasma display, a liquid crystal display, and the like.
It should be understood that the number of video capture devices, detection devices, video encoding devices, storage transmission devices, triggering devices, sensor devices, encoded stream buffering devices, display devices, and networks in fig. 1 are merely illustrative. Any number of video capture devices, detection devices, video encoding devices, storage and transmission devices, triggering devices, sensor devices, encoded stream caching devices, display devices, and networks may be present, as desired.
With continued reference to fig. 2, a schematic structural diagram of an embodiment of the surveillance video codec device provided in the present disclosure is shown. As shown in fig. 2, the surveillance video codec device of this embodiment may include: the device comprises a video acquisition device 1, a detection device 2, a video coding device 3 and a storage and transmission device 4.
In some embodiments, the video capture device 1 may be any of various video information capture devices including, but not limited to, optical image sensors, infrared sensors, electronic radars, and the like. Here, the video capture device 1 may be configured to capture video information within a monitoring range and transmit the video information to the video encoding device 3. Here, the video information may be a video signal. Optionally, the video capture device 1 is further configured to perform feature extraction processing on the captured video information to generate feature extraction information, and send the feature extraction information to the detection device 2. Here, the video capture device 2 may support an extraction approach using machine learning.
In some embodiments, the detecting device 2 is used for detecting the video information collected by the video collecting device. Here, the video information refers to feature extraction information obtained by performing feature extraction processing by the video capture device. The detection device 2 is further configured to receive the feature extraction information, and generate a start instruction in response to the feature extraction information meeting a preset condition. Here, the preset condition may be that "the feature extraction information is intelligent information". Here, the intelligent information may be a result of the detection apparatus 2 being subjected to the machine learning process. For example, the intelligent information may be "people: face, height, whether glasses/jewelry are worn, and color/texture of clothing, etc. The detection means 2 are also arranged to send a start-up instruction to the video coding means 3.
In some embodiments, the video encoding apparatus 3 may receive the video information sent by the video capture apparatus, and perform encoding processing on the video information to generate a video encoded stream. Here, the video encoding stream may refer to an encoded video signal.
In some embodiments, the storage and transmission device 4 may be configured to receive a video coding stream sent by the video coding device, and store and transmit the video coding stream.
In some optional implementations of some embodiments, as shown in fig. 3, the surveillance video codec device may further include a triggering device 5. The triggering device 5 may be configured to receive a start instruction sent by the detecting device 2, and start the preset encoding mode of the video encoding device 3 according to the start instruction. Here, the preset encoding mode may refer to a manner of encoding the video information in a machine learning manner.
The monitoring video coding and decoding device in the embodiment has the following beneficial effects: by the monitoring video coding and decoding device of some embodiments of the present disclosure, the video content is intelligently processed by classification, identification, segmentation, etc., so that energy consumption and transmission bandwidth can be saved. Specifically, the inventors found that the reason for the performance of the related monitoring system to be low is: the collected information is not classified, and the video frames without extra information are not processed in a skipping mode (standard coding). Based on this, the monitoring video coding and decoding device of some embodiments of the present disclosure includes not only the video capture device and the video coding device, but also the detection device. In the video acquisition process, the acquired video information is detected through the detection device, so that the video coding device can classify the acquired video information conveniently. And because the detection device participates, the trigger device can effectively control different video coding modes in the video coding device, can effectively classify the video information, and can carry out different coding modes according to the classification result. Therefore, by the variable-quality coding mode, the video coding performance of the monitoring system can be effectively improved under the same code rate condition, and the energy consumption and the transmission bandwidth are saved.
With continued reference to fig. 4, a schematic structural diagram of an embodiment of the surveillance video codec device provided in the present disclosure is shown. The same as the monitoring video coding and decoding device in the embodiment of fig. 2, the monitoring video coding and decoding device in this embodiment may also include a video capture device 1, a detection device 2, a video coding device 3, and a storage and transmission device 4. For a specific structural relationship, reference may be made to the related description in the embodiment of fig. 2, which is not described herein again.
Different from the monitoring video encoding and decoding device in the embodiment of fig. 2, the monitoring video encoding and decoding device in this embodiment further includes a triggering device 5, where: the trigger device is in communication connection with the detection device, and the detection device is used for sending a starting instruction to the trigger device; the trigger device is used for receiving the starting instruction sent by the detection device and starting the preset coding mode of the video coding device according to the starting instruction.
Unlike the monitoring video codec device in the embodiment of fig. 2, the monitoring video codec device in this embodiment further includes a sensor device 6, where: the sensor device is in communication connection with the trigger device and is used for acquiring sensing information and generating a starting instruction according to the acquired sensing information; the sensor device is also used for sending the starting instruction to the trigger device.
The sensor device 6 is an inventive point of the present disclosure, thereby solving the technical problem mentioned in the background art, i.e. the conventional detection device usually detects the characteristic information sent by the video acquisition device, and cannot start the detection mode in advance, so that the video encoding device cannot start the preset encoding mode in advance, and a part of the preset video encoding stream forms a missing state. The influence factors causing the missing state of part of the preset video coding stream are as follows: the conventional detection device usually detects the feature information sent by the video acquisition device, and cannot start the detection mode in advance, so that the video coding device cannot start the preset coding mode in advance, and a part of preset video coding streams form a missing state. If the above factors are solved, the effect of complementing the preset video coding stream can be achieved. To achieve this effect, the present disclosure introduces a sensor device 6. Here, the sensor device 6 is introduced to detect a change in a surrounding event, so as to turn on a preset encoding mode in the video encoding device in advance. Meanwhile, the operating pressure of the video acquisition device is reduced. Therefore, the problem that the detection mode cannot be started in advance, the preset coding mode cannot be started in advance by the video coding device, and part of preset video coding streams form a missing state is solved. Therefore, the preset coding mode can be started in advance, and the preset coding processing of the video information is completed.
Different from the monitoring video coding and decoding device in the embodiment of fig. 2, the monitoring video coding and decoding device in this embodiment further includes a coded stream buffering device 7 and a display device 8, where: the coded stream caching device is in communication connection with the video coding device, and the video coding device is used for sending the video coded stream to the coded stream caching device; the coded stream caching device is used for receiving the video coded stream sent by the video coding device; the encoded stream buffer device is in communication connection with the display device, and is configured to send the video encoded stream to the display device.
Different from the monitoring video encoding and decoding apparatus in the embodiment of fig. 2, the video encoding apparatus 3 in this embodiment is further configured to perform a preset encoding process on the video information to generate a preset video encoded stream in response to the video encoding apparatus starting a preset encoding mode; and in response to the video coding device not starting a preset coding mode, performing standard coding processing on the video information to generate a standard video coding stream. Here, the standard video encoding stream may be a video encoding stream that has not been processed in a machine learning manner.
In some embodiments, the display device 8 may be configured to receive a video encoded stream sent by the encoded stream buffering device, and control the video encoded stream to perform split-screen display.
In some embodiments, as shown in fig. 5, the controlling, by the display device 8, the video coding stream to perform split-screen display includes: in response to the fact that the video coding stream is determined to be a preset video coding stream, controlling a corresponding screen of the preset video coding stream to display; and controlling a corresponding screen of the standard video coding stream to carry out standard display in a display device in response to the fact that the video coding stream is determined to be the standard video coding stream. Here, the standard display may be a non-display of the standard video encoding stream or a gray screen display.
The above embodiments of the present disclosure have the following advantages: by the monitoring video coding and decoding device of some embodiments of the present disclosure, the video content is intelligently processed by classification, identification, segmentation, etc., so that energy consumption and transmission bandwidth can be saved. Specifically, the inventors found that the reason for the performance of the related monitoring system to be low is: the collected information is not classified, and the video frame of the extra information is not processed in a skipping mode. Based on this, the monitoring video coding and decoding device of some embodiments of the present disclosure includes not only the video capture device and the video coding device, but also the detection device. In the video acquisition process, the acquired video information is detected through the detection device, so that the video coding device can classify the acquired video information conveniently. And because of the participation of the detection device, the triggering device can effectively control different video coding modes in the video coding device, can effectively classify the video information and carry out different coding modes according to the classification processing result. Therefore, by the variable-quality coding mode, the video coding performance of the monitoring system can be effectively improved under the same code rate condition, and the energy consumption and the transmission bandwidth are saved. Here, the present disclosure also introduces a coded stream buffering device and a display device. By classifying and displaying the video coding streams in different modes, the video coding performance of the monitoring system can be further improved under the same code rate condition, and the energy loss and the transmission bandwidth are saved.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A surveillance video codec device, wherein the surveillance video codec device comprises: video acquisition device, detection device, video coding device, storage transmission device, wherein:
the video acquisition device is in communication connection with the video coding device, and is used for acquiring video information in a monitoring range and sending the video information to the video coding device;
the detection device is in communication connection with the video acquisition device, wherein the detection device is used for detecting the video information acquired by the video acquisition device;
the video coding device is in communication connection with the storage and transmission device, and is used for receiving the video information sent by the video acquisition device and performing coding processing on the video information to generate a video coding stream;
the video coding device is also used for sending the video coding stream to a storage transmission device.
2. The surveillance video codec device according to claim 1, wherein the storage and transmission device is configured to receive a video encoded stream sent by the video encoding device, and store and transmit the video encoded stream.
3. The surveillance video codec device according to claim 1, wherein the video capture device is further configured to perform feature extraction processing on the captured video information to generate feature extraction information, and send the feature extraction information to the detection device.
4. The surveillance video codec device according to claim 3, wherein the detection device is further configured to receive the feature extraction information, and generate a start instruction in response to the feature extraction information meeting a preset condition.
5. The surveillance video coding and decoding apparatus according to claim 4, wherein the video coding apparatus further comprises a triggering apparatus, wherein:
the trigger device is in communication connection with the detection device, and the detection device is used for sending a starting instruction to the trigger device;
the trigger device is used for receiving a starting instruction sent by the detection device and starting a preset coding mode of the video coding device according to the starting instruction.
6. The surveillance video codec device according to claim 5, wherein said encoding the video information to generate a video encoded stream includes:
responding to the video coding device to start a preset coding mode, and performing preset coding processing on the video information to generate a preset video coding stream;
and in response to the video coding device not starting a preset coding mode, performing standard coding processing on the video information to generate a standard video coding stream.
7. The surveillance video codec device according to claim 6, wherein the detection device further comprises a sensor device, wherein:
the sensor device is in communication connection with the trigger device and is used for acquiring sensing information and generating a starting instruction according to the acquired sensing information;
the sensor device is also used for sending the starting instruction to the trigger device.
8. The surveillance video codec device according to claim 7, further comprising a coded stream buffering device and a display device, wherein:
the coded stream caching device is in communication connection with the video coding device, and the video coding device is used for sending the video coded stream to the coded stream caching device;
the coded stream caching device is used for receiving a video coded stream sent by the video coding device;
the coded stream caching device is in communication connection with the display device and is used for sending the video coded stream to the display device.
9. The surveillance video codec device according to claim 8, wherein the display device is configured to receive the video encoded stream sent by the encoded stream buffer device, and control the video encoded stream to perform split-screen display.
10. The apparatus for monitoring video encoding and decoding according to claim 9, wherein the controlling the video encoded stream to be displayed in a split screen includes:
in response to the fact that the video coding stream is determined to be a preset video coding stream, controlling a corresponding screen of the preset video coding stream to display;
and in response to the fact that the video coding stream is determined to be a standard video coding stream, controlling a corresponding screen of the standard video coding stream to carry out standard display on a display device.
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