CN116189922A - Audio-video ultrasonic remote consultation system based on RTSP and WebRTC - Google Patents
Audio-video ultrasonic remote consultation system based on RTSP and WebRTC Download PDFInfo
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Abstract
The invention discloses an audio-video ultrasonic remote consultation system based on RTSP and WebRTC, which relates to the field of ultrasonic image audio-video remote transmission and comprises the following components: the system comprises a basic doctor application module, a remote expert consultation module and a background service system; the background service system carries out audio and video transmission negotiation between the basic doctor application module and the remote expert consultation module through the Signal of the WebRTC, and establishes point-to-point audio and video transmission; meanwhile, the ultrasonic image generated by the basic doctor application module realizes multiplexing through an RTSP Server ultrasonic image video streaming service module in the background service system; the invention adopts the mode of combining WebRTC and RTSP, effectively solves the real-time problem of audio and video transmission, and also supports the requirements of specialized processing of ultrasonic image data and the requirements of multi-path forwarding ultrasonic application.
Description
Technical Field
The invention relates to the field of ultrasonic image audio and video remote transmission, in particular to an audio and video ultrasonic remote consultation system based on RTSP and WebRTC.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
Along with miniaturization of ultrasonic equipment, palm ultrasonic application is becoming more popular, and ultrasonic application is also moving from traditional ultrasonic departments to clinical and basic community hospitals; the use difficulty of the ultrasonic equipment is high, when doctors in clinical and basic community hospitals use the ultrasonic equipment, remote guidance of ultrasonic specialists is often needed, in the remote guidance process of ultrasonic examination, not only voice and video information of the doctors are needed, but also ultrasonic image data are required to be transmitted in real time for the remote ultrasonic specialists to check and AI analysis, so that the real-time performance and resolution requirements of ultrasonic images are high, meanwhile, the real-time images in the ultrasonic acquisition process also need to support multiplex forwarding and playing for teaching and quality control, and the ultrasonic image data in the ultrasonic acquisition process also need to be stored.
The first prior art is: the existing scheme for solving the problem of remote consultation of audio and video is based on TCP protocol and audio and video coding and decoding technology, and simultaneously realizes audio and video transmission of the consultation parties by means of transfer of a central processing server, and a framework diagram is shown in figure 2; drawbacks of the first prior art: the scheme adopts the self-defined data format for transmission, so that the resolution of the image data can be ensured, but the problem is that the transmission real-time performance is insufficient and the delay is high due to the adoption of the transfer of the central processing server; in addition, since all data transmission is carried out by the central processing server, the central processing server has high pressure and high system performance requirement under the condition of high concurrency.
And the second prior art is as follows: another current solution is to integrate the audio-video conference system module directly; the system has the advantages that the mature module of the existing audio-video conference system can be utilized to carry out audio-video real-time communication of two or more ultrasonic consultation parties, and an ultrasonic image can only adopt the screen sharing function of the audio-video conference system; the second technology has the defects that: the screen sharing of the conference system is mainly applied to document sharing, in order to ensure the fluency of the conference system, the frame rate of the screen sharing is often reduced, but in an ultrasonic remote consultation scene, the frame rate of an ultrasonic image is required to be preferentially ensured, in addition, the audio-video conference system is often required to support the simultaneous conference requirement of hundreds of people, so that the system complexity is high, and the influence of network jitter and the like must be balanced by relying on a central scheduling mechanism; from the perspective of application scenes, the requirements of special application scenes such as AI processing and quality control, teaching, remote control assistance and the like based on ultrasonic images are inconsistent with the problems to be solved by the traditional audio-video conference system.
Disclosure of Invention
The invention aims at: aiming at the problems that the real-time performance of transmission is insufficient, the time delay is high, the requirement on system performance is high, the frame rate of screen sharing existing in an integrated audio and video conference system module is low and the like, the audio and video ultrasonic remote consultation system based on RTSP and WebRTC is provided, and the requirements on real-time performance, high-resolution image transmission, multipath forwarding, AI processing and storage can be met.
The technical scheme of the invention is as follows:
an audio-video ultrasonic remote consultation system based on RTSP and WebRTC comprises:
the basic doctor application module is responsible for ultrasonic imaging, control and measurement and can also be used for carrying out real-time audio and video interaction with the remote expert consultation module;
the remote expert consultation module is responsible for checking ultrasonic images, editing ultrasonic reports, performing real-time audio-video interaction, guiding and teaching;
the background service system carries out audio and video transmission negotiation between the basic doctor application module and the remote expert consultation module through the Signal of the WebRTC, and establishes point-to-point audio and video transmission; meanwhile, the ultrasonic image generated by the basic doctor application module realizes multiplexing through an RTSP Server ultrasonic image video streaming service module in the background service system.
Further, the basic doctor application module includes:
the ultrasonic transducer control module is responsible for issuing control parameters of the ultrasonic transducer;
the ultrasonic image processing module is used for processing the ultrasonic image uploaded by the ultrasonic transducer and uploading the ultrasonic image to the background service system;
the ultrasonic image display module is used for displaying the ultrasonic image after the image processing;
the ultrasonic image measurement module is used for performing pathological measurement based on the ultrasonic image;
the ultrasonic report module edits and generates an ultrasonic report according to the measurement result of the ultrasonic image measurement module and uploads the ultrasonic report to the background service system;
and the first audio and video communication module is responsible for carrying out audio and video interaction with the remote expert consultation module.
Further, the image processing includes: conversion and enhancement of images;
the pathological measurement, comprising: size measurement of focus and labeling of part.
Further, the remote expert consultation module includes:
the ultrasonic image viewing module is used for viewing the ultrasonic image uploaded to the background service system by the primary doctor application module;
the ultrasonic report editing module is used for acquiring, editing and auditing the ultrasonic report uploaded to the background service system by the basic doctor application module;
and the second audio and video communication module is responsible for audio and video interaction with the application module of the basic doctor to carry out teaching and consultation services.
Further, the background service system includes:
the consultation service module uploads the ultrasonic report generated by the ultrasonic report module to the consultation service module for the ultrasonic report editing module to acquire, edit and audit;
the system comprises a WebRTC audio/video transmission module, an ICE (Internet traffic control) communication module and an audio/video communication module, wherein the WebRTC audio/video transmission module is responsible for point-to-point real-time transmission of audio/video, communication negotiation is carried out by Signal, and a network path is established between the audio/video communication module I and the audio/video communication module II;
the RTSP Server ultrasonic image video stream service module is used for transmitting ultrasonic image video streams to the RTSP Server ultrasonic image video stream service module through an RTSP protocol, and realizing streaming control, storage and multipath forwarding of the ultrasonic images through the RTSP Server ultrasonic image video stream service module; the ultrasonic image viewing module can query the ultrasonic image transmitted by the ultrasonic image processing module through the RTSP Server ultrasonic image video streaming service module.
Further, the method further comprises the following steps:
and the monitoring module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to monitor the quality of the ultrasonic image.
Further, the method further comprises the following steps:
and the teaching module is used for pulling the ultrasonic image based on the RTSP Server ultrasonic image video streaming service module to carry out teaching service.
Further, the method further comprises the following steps:
and the AI module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to carry out manual marking and AI analysis.
Compared with the prior art, the invention has the beneficial effects that:
1. an audio-video ultrasonic remote consultation system based on RTSP and WebRTC comprises: the basic doctor application module is responsible for ultrasonic imaging, control and measurement and can also be used for carrying out real-time audio and video interaction with the remote expert consultation module; the remote expert consultation module is responsible for checking ultrasonic images, editing ultrasonic reports, performing real-time audio-video interaction, guiding and teaching; the background service system carries out audio and video transmission negotiation between the basic doctor application module and the remote expert consultation module through the Signal of the WebRTC, and establishes point-to-point audio and video transmission; meanwhile, the ultrasonic image generated by the basic doctor application module realizes multiplexing through an RTSP Server ultrasonic image video streaming service module in the background service system; the method adopts a mode of combining WebRTC and RTSP, effectively solves the real-time problem of audio and video transmission, supports the requirements of specialized processing of ultrasonic image data and the requirements of multi-path forwarding ultrasonic application, and supplements the defects of an audio and video conference system in terms of ultrasonic image transmission frame rate, resolution, AI processing, multi-path forwarding and storage; meanwhile, the complexity of the whole solution is reduced; the flexible and efficient characteristics of the ultrasonic remote consultation application scene on real-time performance and ultrasonic image processing and application are highlighted.
2. Compared with the scheme of forwarding audio and video through a central processing service, the audio and video ultrasonic remote consultation system based on RTSP and WebRTC adopts a WebRTC point-to-point scheme, so that the transmission efficiency is greatly improved, and the real-time property of transmission is improved; compared with the method of the conventional audio-video conference system, the method greatly reduces the complexity of the system and simultaneously reduces the dependence on a central scheduling unit caused by the complexity of the system.
3. The RTSP and WebRTC-based audio/video ultrasonic remote consultation system adopts an RTSP protocol to transmit ultrasonic image data, so that the ultrasonic image data can be used for multiparty forwarding viewing and AI processing; meanwhile, the conference attribute, auxiliary operation (assistance and interactivity) attribute, the attribute of remote AI auxiliary analysis of the ultrasonic image focus and the ultrasonic image process monitoring (quality control) attribute of the ultrasonic remote consultation are well combined.
Drawings
FIG. 1 is a frame diagram of an audio-video ultrasonic remote consultation system based on RTSP and WebRTC;
fig. 2 is a schematic diagram of an audio-video ultrasound remote consultation system according to a first prior art.
Detailed Description
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The features and capabilities of the present invention are described in further detail below in connection with examples.
Example 1
The existing scheme for solving the problem of remote consultation of audio and video is based on TCP protocol and audio and video coding and decoding technology, and simultaneously realizes audio and video transmission of the consultation parties by means of transfer of a central processing server, and a framework diagram is shown in figure 2; drawbacks of the first prior art: the scheme adopts the self-defined data format for transmission, so that the resolution of the image data can be ensured, but the problem is that the transmission real-time performance is insufficient and the delay is high due to the adoption of the transfer of the central processing server; in addition, since all data transmission is carried out by the central processing server, the central processing server has high pressure and high system performance requirement under the condition of high concurrency.
Another current solution is to integrate the audio-video conference system module directly; the system has the advantages that the mature module of the existing audio-video conference system can be utilized to carry out audio-video real-time communication of two or more ultrasonic consultation parties, and an ultrasonic image can only adopt the screen sharing function of the audio-video conference system; the second technology has the defects that: the screen sharing of the conference system is mainly applied to document sharing, in order to ensure the fluency of the conference system, the frame rate of the screen sharing is often reduced, but in an ultrasonic remote consultation scene, the frame rate of an ultrasonic image is required to be preferentially ensured, in addition, the audio-video conference system is often required to support the simultaneous conference requirement of hundreds of people, so that the system complexity is high, and the influence of network jitter and the like must be balanced by relying on a central scheduling mechanism; from the perspective of application scenes, the requirements of special application scenes such as AI processing and quality control, teaching, remote control assistance and the like based on ultrasonic images are inconsistent with the problems to be solved by the traditional audio-video conference system.
Aiming at the problems, the embodiment provides an audio/video ultrasonic remote consultation system based on RTSP and WebRTC, adopts a mode of combining WebRTC and RTSP, effectively solves the real-time problem of audio/video transmission, supports the requirements of specialized processing of ultrasonic image data and the requirements of multi-path forwarding ultrasonic application, and can meet the requirements of real-time performance, high-resolution image transmission, multi-path forwarding, AI processing and storage.
Referring to fig. 1, an audio/video ultrasonic remote consultation system based on RTSP and WebRTC includes:
the basic doctor application module is responsible for ultrasonic imaging, control and measurement and can also be used for carrying out real-time audio and video interaction with the remote expert consultation module; preferably, the primary doctor application module is used by primary doctors;
the remote expert consultation module is responsible for checking ultrasonic images, editing ultrasonic reports, performing real-time audio-video interaction, guiding and teaching; preferably, the remote expert consultation module is used by a remote ultrasound expert;
the background service system carries out audio and video transmission negotiation between the basic doctor application module and the remote expert consultation module through the Signal of the WebRTC, and establishes point-to-point audio and video transmission; meanwhile, the ultrasonic image generated by the basic doctor application module realizes multiplexing through an RTSP Server ultrasonic image video streaming service module in the background service system.
In this embodiment, specifically, the primary doctor application module includes:
the ultrasonic transducer control module is responsible for issuing control parameters of the ultrasonic transducer;
the ultrasonic image processing module is used for processing the ultrasonic image uploaded by the ultrasonic transducer and uploading the ultrasonic image to the background service system;
the ultrasonic image display module is used for displaying the ultrasonic image after the image processing; preferably, the image processing includes: conversion and enhancement of images;
the ultrasonic image measurement module is used for performing pathological measurement based on the ultrasonic image; preferably, the pathological measurement comprises: size measurement and site labeling of lesions
The ultrasonic report module edits and generates an ultrasonic report according to the measurement result of the ultrasonic image measurement module and uploads the ultrasonic report to the background service system;
and the first audio and video communication module is responsible for carrying out audio and video interaction with the remote expert consultation module.
In this embodiment, specifically, the remote expert consultation module includes:
the ultrasonic image viewing module is used for viewing the ultrasonic image uploaded to the background service system by the primary doctor application module; viewing static pictures uploaded by the primary doctor through the primary doctor application module or viewing an ongoing ultrasonic picture of the primary doctor in real time through a connecting line;
the ultrasonic report editing module is used for acquiring, editing and auditing the ultrasonic report uploaded to the background service system by the basic doctor application module; preferably, in order to improve the efficiency of the ultrasonic examination, the editing of the ultrasonic report is generally not performed on the application module of the primary doctor, but is performed in the consultation module of the remote expert, and in addition, the primary doctor does not have qualification of editing the report, so the primary doctor is responsible for drawing and the remote ultrasonic expert is responsible for report editing and auditing;
and the second audio and video communication module is responsible for audio and video interaction with the application module of the basic doctor to carry out teaching and consultation services.
In this embodiment, specifically, the background service system includes:
the consultation service module uploads the ultrasonic report generated by the ultrasonic report module to the consultation service module for the ultrasonic report editing module to acquire, edit and audit;
the system comprises a WebRTC audio/video transmission module, an ICE (Internet traffic control) communication module and an audio/video communication module, wherein the WebRTC audio/video transmission module is responsible for point-to-point real-time transmission of audio/video, communication negotiation is carried out by Signal, and a network path is established between the audio/video communication module I and the audio/video communication module II;
the RTSP Server ultrasonic image video stream service module is used for transmitting ultrasonic image video streams to the RTSP Server ultrasonic image video stream service module through an RTSP protocol, and realizing streaming control, storage and multipath forwarding of the ultrasonic images through the RTSP Server ultrasonic image video stream service module; the ultrasonic image viewing module can query the ultrasonic image transmitted by the ultrasonic image processing module through the RTSP Server ultrasonic image video streaming service module.
In this embodiment, specifically, the method further includes:
and the monitoring module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to monitor the quality of the ultrasonic image.
In this embodiment, specifically, the method further includes:
and the teaching module is used for pulling the ultrasonic image based on the RTSP Server ultrasonic image video streaming service module to carry out teaching service.
In this embodiment, specifically, the method further includes:
and the AI module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to carry out manual marking and AI analysis.
In this embodiment, the proposed audio/video ultrasonic remote consultation system based on RTSP and WebRTC uses the following method:
1. after imaging by using ultrasonic equipment by using the basic doctor application module, the basic doctor can upload ultrasonic images to a background service system for storage, and a remote ultrasonic expert can check the ultrasonic images in the background service system through the remote expert consultation module to carry out offline consultation of the ultrasonic images;
2. when a basic doctor needs the assistance of a remote ultrasonic expert, an audio and video real-time consultation can be initiated, audio and video transmission consultation is carried out through the Signal of the WebRTC, a communication channel is established by means of ICE in the consultation process, and after the communication channel is established, the basic doctor application module and the remote expert consultation module can carry out point-to-point audio and video transmission, so that the time delay of the transmission process is reduced, and the highest instantaneity is realized;
3. meanwhile, the basic doctor application module transmits an ultrasonic image video stream to the RTSP Server ultrasonic image video stream service module through an RTSP protocol, and a remote ultrasonic expert can play an ultrasonic image uploaded to the RTSP Server ultrasonic image video stream service module through the ultrasonic image viewing module;
4. the ultrasonic quality control service can also pull an ultrasonic image video stream based on an RTSP Server ultrasonic image video stream service module to monitor the quality of ultrasonic images;
5. the ultrasonic image can also be stored in an RTSP Server ultrasonic image video streaming service module, and when certain teaching demonstration is needed, the ultrasonic image can be pulled from the RTSP Server ultrasonic image video streaming service module to carry out teaching service;
6. the ultrasonic image video stream can be pulled from the RTSP Server ultrasonic image video stream service module at any time and any place to carry out manual marking, AI analysis and other treatments.
The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.
This background section is provided to generally present the context of the present invention and the work of the presently named inventors, to the extent it is described in this background section, as well as the description of the present section as not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present invention.
Claims (8)
1. An audio-video ultrasonic remote consultation system based on RTSP and WebRTC is characterized by comprising:
the basic doctor application module is responsible for ultrasonic imaging, control and measurement and can also be used for carrying out real-time audio and video interaction with the remote expert consultation module;
the remote expert consultation module is responsible for checking ultrasonic images, editing ultrasonic reports, performing real-time audio-video interaction, guiding and teaching;
the background service system carries out audio and video transmission negotiation between the basic doctor application module and the remote expert consultation module through the Signal of the WebRTC, and establishes point-to-point audio and video transmission; meanwhile, the ultrasonic image generated by the basic doctor application module realizes multiplexing through an RTSP Server ultrasonic image video streaming service module in the background service system.
2. The RTSP and WebRTC-based audio-video ultrasound remote consultation system of claim 1, wherein the primary doctor application module includes:
the ultrasonic transducer control module is responsible for issuing control parameters of the ultrasonic transducer;
the ultrasonic image processing module is used for processing the ultrasonic image uploaded by the ultrasonic transducer and uploading the ultrasonic image to the background service system;
the ultrasonic image display module is used for displaying the ultrasonic image after the image processing;
the ultrasonic image measurement module is used for performing pathological measurement based on the ultrasonic image;
the ultrasonic report module edits and generates an ultrasonic report according to the measurement result of the ultrasonic image measurement module and uploads the ultrasonic report to the background service system;
and the first audio and video communication module is responsible for carrying out audio and video interaction with the remote expert consultation module.
3. The RTSP and WebRTC based audio-video ultrasound remote consultation system of claim 2, wherein the image processing includes: conversion and enhancement of images;
the pathological measurement, comprising: size measurement of focus and labeling of part.
4. The RTSP and WebRTC based audio-video ultrasound remote consultation system of claim 2, wherein the remote expert consultation module includes:
the ultrasonic image viewing module is used for viewing the ultrasonic image uploaded to the background service system by the primary doctor application module;
the ultrasonic report editing module is used for acquiring, editing and auditing the ultrasonic report uploaded to the background service system by the basic doctor application module;
and the second audio and video communication module is responsible for audio and video interaction with the application module of the basic doctor to carry out teaching and consultation services.
5. The RTSP and WebRTC-based audio-video ultrasound remote consultation system of claim 4, wherein the background service system includes:
the consultation service module uploads the ultrasonic report generated by the ultrasonic report module to the consultation service module for the ultrasonic report editing module to acquire, edit and audit;
the system comprises a WebRTC audio/video transmission module, an ICE (Internet traffic control) communication module and an audio/video communication module, wherein the WebRTC audio/video transmission module is responsible for point-to-point real-time transmission of audio/video, communication negotiation is carried out by Signal, and a network path is established between the audio/video communication module I and the audio/video communication module II;
the RTSP Server ultrasonic image video stream service module is used for transmitting ultrasonic image video streams to the RTSP Server ultrasonic image video stream service module through an RTSP protocol, and realizing streaming control, storage and multipath forwarding of the ultrasonic images through the RTSP Server ultrasonic image video stream service module; the ultrasonic image viewing module can query the ultrasonic image transmitted by the ultrasonic image processing module through the RTSP Server ultrasonic image video streaming service module.
6. The RTSP and WebRTC based audio-video ultrasound remote consultation system of claim 5, further comprising:
and the monitoring module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to monitor the quality of the ultrasonic image.
7. The RTSP and WebRTC based audio-video ultrasound remote consultation system of claim 5, further comprising:
and the teaching module is used for pulling the ultrasonic image based on the RTSP Server ultrasonic image video streaming service module to carry out teaching service.
8. The RTSP and WebRTC based audio-video ultrasound remote consultation system of claim 5, further comprising:
and the AI module is used for pulling the ultrasonic image video stream based on the RTSP Server ultrasonic image video stream service module to carry out manual marking and AI analysis.
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