Intelligent interaction method and system for digital exhibition hall

Abstract

The invention is suitable for the technical field of intelligent interaction, and provides an intelligent interaction method and system for a digital exhibition hall, and the method comprises the following steps: obtaining a scene image through monitoring equipment disposed in the exhibition hall; determining target equipment according to an acquisition source of the scene image, wherein the target equipment is digital display equipment which is being browsed by a visitor group; selecting nearby equipment around the target equipment according to the scene image, wherein the nearby equipment is other digital display equipment around the target equipment; and performing synchronization processing on the selected nearby equipment and the target equipment. According to the invention, a plurality of digital display devices in the exhibition hall can be automatically adjusted for joint synchronization, so that the spatial problem caused by a large number of visitors is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent interaction technology, and in particular to an intelligent interaction method and system for a digital exhibition hall. Background Art

[0002] A digital exhibition hall refers to one that uses multimedia and digital technology as display technology, uses the latest film and television animation technology, combines unique graphic digital and multimedia technology, and uses various novel technologies to attract visitors.

[0003] In the digital exhibition hall, most of the exhibits will be presented on digital screens, which will display the appearance of the exhibits and related professional text introductions. Of course, although this method can provide an intuitive understanding of the exhibits, it still requires the cooperation of the tour guide, because the real-time explanation of the tour guide will make the graphics or text more vivid and specific.

[0004] In actual situations, when there are a large number of visitors, they will gather around a digital screen to listen to the guide's explanation, and the guide will also remotely control the content displayed on the digital screen through the controller in his hand. However, due to the crowded crowd, the sense of participation of the peripheral visitors will be greatly reduced, which will cause these visitors to leave the crowd and browse alone. Therefore, an intelligent interaction method and system for a digital exhibition hall is proposed to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an intelligent interaction method and system for a digital exhibition hall to solve the problems existing in the above-mentioned background technology.

[0006] The present invention is implemented as follows: an intelligent interaction method for a digital exhibition hall, the method comprising the following steps: Acquire a scene image through monitoring equipment installed in the exhibition hall, wherein the scene image is a visitor group in the focus area; Determine a target device according to the acquisition source of the scene image, wherein the target device is a digital display device that the visitor group is browsing, and the target device corresponds to the focus area one by one; Select nearby devices around the target device according to the scene image, where the nearby devices are other digital display devices around the target device; The selected nearby devices are synchronized with the target device so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

[0007] As a further solution of the present invention: the step of acquiring the scene image by means of the monitoring equipment arranged in the exhibition hall specifically comprises: Setting a plurality of virtual areas of interest based on the image of the monitoring device with reference to the position of the digital display device; Calculate the crowd density in each area of ​​interest using a crowd density estimation algorithm; When the crowd density in a certain area of ​​interest is greater than a set value, the monitoring device is adjusted to lock and track the area of ​​interest, and the scene image captured by the monitoring device is obtained in real time.

[0008] As a further solution of the present invention: the step of selecting nearby devices around the target device according to the scene image specifically includes: Separate the crowd from the background of the scene image using background modeling and foreground separation techniques; Based on the separation results of the scene image, the position and orientation of each individual in the visitor group are obtained through computer vision detection technology; Creating a viewing cone based on the position and orientation of the individual, the viewing cone representing the field of view of each individual visitor; Nearby devices are selected through geometric calculation and spatial distribution of the viewing frustum.

[0009] As a further solution of the present invention: the step of selecting nearby devices by geometric calculation and spatial distribution of the viewing cone specifically includes: Establish a plane model based on the location distribution of the target device and nearby devices; Projecting all the viewing cones into the plane model, wherein the viewing cones are sectors with the positions of the individual visitors as vertices in the plane model; Select the visual cones of the edge positions and calculate their overlapping areas; The nearby devices in the plane model are selected according to the overlapping area, and the nearby devices are all located in the overlapping area.

[0010] As a further solution of the present invention: the step of synchronizing the selected nearby device with the target device specifically includes: Acquire the video signal transmitted by the target device and transmit it to the matrix switcher; Determine the transmission port of the matrix switcher according to the selected nearby device; Matrix switcher based routing of video signals to selected nearby devices.

[0011] As a further solution of the present invention: the method further comprises: Acquiring audio data of the interpreter through the wearable device of the interpreter in the exhibition hall, wherein the audio data is the content of the interpreter's explanation of the exhibits; Processing the audio data to improve the quality of the audio; The processed audio data is sent to the target device and the selected nearby device, so that the device can synchronously play the commentator's commentary content.

[0012] Another object of the present invention is to provide an intelligent interactive system for a digital exhibition hall, the system comprising: An image acquisition module, used to acquire a scene image through a monitoring device arranged in the exhibition hall, wherein the scene image is a visitor group in a focus area; A device determination module, used to determine a target device according to a source of the scene image, wherein the target device is a digital display device currently being browsed by a visitor group, and the target device corresponds to a focus area one by one; A device selection module is used to select nearby devices around the target device according to the scene image, wherein the nearby devices are other digital display devices around the target device; The device synchronization module is used to synchronize the selected nearby devices with the target device so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

[0013] As a further solution of the present invention: the image acquisition module includes: An area setting unit, which sets a plurality of virtual areas of interest based on the screen of the monitoring device with reference to the position of the digital display device; A crowd estimation unit, which calculates the crowd density in each area of ​​interest using a crowd density estimation algorithm; The locking shooting unit is used to adjust the monitoring equipment to lock and track a certain area of ​​interest when the crowd density in the area of ​​interest is greater than a set value, and to obtain the scene image shot by the monitoring equipment in real time.

[0014] As a further solution of the present invention: the device selection module includes: An image separation unit, which separates the crowd from the background of the scene image using background modeling and foreground separation techniques; The individual calculation unit obtains the position and orientation of each individual in the visitor group through computer vision detection technology based on the separation result of the scene image; A viewing cone creation unit, used to create a viewing cone according to the position and orientation of the individual, wherein the viewing cone represents the field of view of each individual visitor; The spatial calculation unit is used to select nearby devices through geometric calculation and spatial distribution of the viewing cone.

[0015] As a further solution of the present invention: the device synchronization module includes: A signal interception unit, used to obtain the video signal transmitted by the target device and transmit it to the matrix switcher; A port determination unit, used for determining a transmission port of the matrix switcher according to the selected nearby device; The signal distribution unit transmits the video signal to selected nearby devices based on the matrix switcher.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention first determines the visitor group through monitoring equipment, and the position of the group also corresponds to the target device, that is, the digital display device being watched can be determined. While the group of visitors is watching, the nearby digital display devices can be selected so that these devices can be displayed synchronously, so that the visitor group can receive information to a greater extent. For visitors in marginal positions, they can also avoid the crowd to obtain information about the exhibits. In summary, the present invention can automatically adjust multiple digital display devices in the exhibition hall for joint synchronization, thereby effectively solving the space problem caused by the large number of visitors, and can provide visitors with a better browsing experience, so that the display of exhibits in the digital exhibition hall is expanded in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a flow chart of an intelligent interaction method for a digital exhibition hall.

[0018] Figure 2 The present invention is a flow chart of acquiring scene images through monitoring equipment arranged in a digital exhibition hall in an intelligent interaction method of the exhibition hall.

[0019] Figure 3 The present invention is a flowchart for selecting nearby devices around a target device according to a scene image in an intelligent interaction method of a digital exhibition hall.

[0020] Figure 4 This is a flow chart for selecting nearby devices through geometric calculation and spatial distribution of the viewing cone in an intelligent interaction method for a digital exhibition hall.

[0021] Figure 5 The present invention is a flow chart of synchronizing selected nearby devices with target devices in an intelligent interaction method of a digital exhibition hall.

[0022] Figure 6 The present invention is a flow chart of sending processed audio data to a target device and selected nearby devices in an intelligent interaction method of a digital exhibition hall.

[0023] Figure 7 The schematic diagram is a structural diagram of an intelligent interactive system for a digital exhibition hall.

[0024] Figure 8 The figure is a structural diagram of an image acquisition module in an intelligent interactive system of a digital exhibition hall.

[0025] Fig. 9 The schematic diagram is a structural diagram of a device selection module in an intelligent interactive system of a digital exhibition hall.

[0026] Fig.10 The schematic diagram is a structural diagram of a device synchronization module in an intelligent interactive system of a digital exhibition hall. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0029] like Figure 1 As shown, an embodiment of the present invention provides an intelligent interaction method for a digital exhibition hall, and the method includes the following steps: S100, acquiring a scene image through a monitoring device installed in the exhibition hall, wherein the scene image is a visitor group in a focus area; S200, determining a target device according to a source of the scene image, wherein the target device is a digital display device currently being browsed by a group of visitors, and the target device corresponds to a focus area one by one; S300, selecting nearby devices around the target device according to the scene image, wherein the nearby devices are other digital display devices around the target device; S400, synchronizing the selected nearby devices with the target device, so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

[0030] It should be noted that visitors will gather around a digital screen to listen to the guide's explanation, and the guide will also remotely control the content displayed on the digital screen with the controller in his hand. However, due to the crowded crowd and the limited space in the exhibition hall, the sense of participation of visitors outside will be greatly reduced, mainly because the crowd blocks visitors at the edge from listening and viewing.

[0031] In the embodiment of the present invention, the present invention first determines the visitor group through the monitoring equipment, and the position of the group also corresponds to the target device, that is, the digital display device being watched can be determined. While the group of visitors is watching, the nearby digital display devices can be selected so that these devices can be displayed synchronously, so that the visitor group can receive information to a greater extent. For visitors in marginal positions, they can also avoid the crowd to obtain information about the exhibits. In summary, the present invention can automatically adjust multiple digital display devices in the exhibition hall for joint synchronization, thereby effectively solving the space problem caused by the large number of visitors, and can provide visitors with a better browsing experience, so that the display of exhibits in the digital exhibition hall is expanded in space.

[0032] like Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, the step of acquiring the scene image by means of the monitoring device arranged in the exhibition hall specifically includes: S101, setting a plurality of virtual areas of interest based on the image of the monitoring device with reference to the position of the digital display device; S102, calculating the crowd density in each area of ​​interest using a crowd density estimation algorithm; S103, when the crowd density in a certain area of ​​interest is greater than a set value, the monitoring device is adjusted to lock and track the area of ​​interest, and the scene image captured by the monitoring device is obtained in real time.

[0033] In the embodiments of the present invention, generally speaking, the monitoring setting is to shoot an image within a larger range. This image screen includes a large number of digital display devices. Based on these digital display devices, a large number of virtual areas of interest can be established. These areas of interest are in a state of facing the digital display devices. When there are a large number of visitors, it can be discovered by calculating the crowd density in the area of ​​interest. At this time, the monitoring device can use rotation, lifting, and zooming operations to lock this area of ​​interest, thereby reducing invalid information in the scene image screen and facilitating subsequent identification.

[0034] like Figure 3 As shown, as a preferred embodiment of the present invention, the step of selecting nearby devices around the target device according to the scene image specifically includes: S301, separating the crowd from the background of the scene image using background modeling and foreground separation technology; S302, obtaining the position and orientation of each individual in the visitor group through computer vision detection technology based on the separation result of the scene image; S303, creating a viewing cone according to the position and orientation of the individual, wherein the viewing cone represents the visual field of each individual visitor; S304, selecting nearby devices through geometric calculation and spatial distribution of the viewing cone.

[0035] In the embodiment of the present invention, in order to improve the accuracy of computer vision detection, it is first necessary to separate the person from the background so that the person's features are more prominent. Determining the position and orientation of a person in an image involves the comprehensive application of multiple technologies and methods. This problem can be effectively solved by selecting appropriate detection algorithms and key point positioning tools. Although there are some challenges, such as occlusion, lighting changes, and dynamic scenes, these problems can be alleviated to a certain extent by introducing multi-view monitoring equipment, data enhancement technology, and video analysis methods, thereby achieving more accurate and robust estimation of the person's position and orientation.

[0036] like Figure 4 As shown, as a preferred embodiment of the present invention, the step of selecting nearby devices through geometric calculation and spatial distribution of the cone specifically includes: S3041, establishing a plane model based on the location distribution of the target device and nearby devices; S3042, projecting all the viewing cones into the plane model, wherein the viewing cones in the plane model are sectors with the positions of the individual visitors as vertices; S3043, selecting the visual cones of the edge position individuals and calculating their overlapping areas; S3044, selecting nearby devices in the plane model according to the overlapping area, wherein the nearby devices are all located in the overlapping area.

[0037] In the embodiments of the present invention, generally speaking, the viewing cone is used for analysis of spatial perspective. However, due to the special scenarios in which the present invention is applied, the visitor group and the digital display device can be considered in one plane. The projection method can avoid the very complex spatial calculation of the viewing cone. Instead, the calculation is performed in a plane fan-shaped overlapping manner. When a digital display device is located in the overlapping area, it indicates that multiple visitors can observe the digital display device. Only in this way can the digital display device have the meaning of synchronization.

[0038] like Figure 5 As shown, as a preferred embodiment of the present invention, the step of synchronizing the selected nearby device with the target device specifically includes: S401, acquiring a video signal transmitted by a target device, and transmitting the video signal to a matrix switcher; S402, determining a transmission port of the matrix switcher according to the selected nearby device; S403, transmitting the video signal to the selected nearby device based on the matrix switch.

[0039] In the embodiment of the present invention, for scenes requiring high-precision synchronization, especially in professional fields (such as broadcasting, digital exhibitions, concerts, etc.), it is possible to consider using dedicated hardware devices to achieve synchronization. Among them, a matrix switcher is an excellent choice. The matrix switcher can receive multiple video input sources and distribute these sources to multiple output displays. At the same time, the matrix switcher also supports audio synchronization and control signal transmission functions.

[0040] like Figure 6 As shown, as a preferred embodiment of the present invention, the intelligent interaction method of the digital exhibition hall further includes: S501, obtaining audio data of the guide through a wearable device of the guide in the exhibition hall, wherein the audio data is the content of the guide's explanation of the exhibits; S502, processing the audio data to improve the audio quality; S503, sending the processed audio data to the target device and the selected nearby devices, so that they can synchronously play the commentary content of the commentator.

[0041] In the embodiments of the present invention, generally speaking, the supporting commentary of the commentator is carried out synchronously, and the wearable device generally has its own loudspeaker, but this mode of communication may also cause problems due to crowd obstruction. Therefore, the characteristics of device linkage may be utilized to realize the combination of the digital display device and the wearable device, so as to more accurately and widely spread the content explained by the commentator. It should be noted that, in this embodiment, the audio data combination is based on the condition that the digital display device does not play audio.

[0042] like Figure 7 As shown, as an embodiment of the present invention, an intelligent interactive system for a digital exhibition hall is also provided, the system comprising: An image acquisition module 100 is used to acquire a scene image through a monitoring device installed in the exhibition hall, wherein the scene image is a group of visitors in a focus area; The device determination module 200 is used to determine the target device according to the acquisition source of the scene image, wherein the target device is a digital display device that the visitor group is browsing, and the target device corresponds to the focus area one by one; A device selection module 300 is used to select nearby devices around the target device according to the scene image, wherein the nearby devices are other digital display devices around the target device; The device synchronization module 400 is used to synchronize the selected nearby devices with the target device so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

[0043] In the embodiment of the present invention, the present invention first determines the visitor group through the monitoring equipment, and the position of the group also corresponds to the target device, that is, the digital display device being watched can be determined. While the group of visitors is watching, the nearby digital display devices can be selected so that these devices can be displayed synchronously, so that the visitor group can receive information to a greater extent. For visitors in marginal positions, they can also avoid the crowd to obtain information about the exhibits. In summary, the present invention can automatically adjust multiple digital display devices in the exhibition hall for joint synchronization, thereby effectively solving the space problem caused by the large number of visitors, and can provide visitors with a better browsing experience, so that the display of exhibits in the digital exhibition hall is expanded in space.

[0044] like Figure 8 As shown, as a preferred embodiment of the present invention, the image acquisition module 100 includes: An area setting unit 101 sets a plurality of virtual areas of interest based on the image of the monitoring device with reference to the position of the digital display device; The crowd estimation unit 102 calculates the crowd density in each area of ​​interest using a crowd density estimation algorithm; The locking and shooting unit 103 is used to adjust the monitoring device to lock and track a certain area of ​​interest when the crowd density in the area of ​​interest is greater than a set value, and to obtain the scene image shot by the monitoring device in real time.

[0045] like Fig. 9 As shown, as a preferred embodiment of the present invention, the device selection module 300 includes: An image separation unit 301 separates the crowd from the background of the scene image using background modeling and foreground separation technology; The individual calculation unit 302 obtains the position and orientation of each individual in the visitor group through computer vision detection technology based on the separation result of the scene image; A viewing cone creation unit 303, configured to create a viewing cone according to the position and orientation of the individual, wherein the viewing cone represents the visual field of each individual visitor; The spatial calculation unit 304 is used to select nearby devices through geometric calculation and spatial distribution of the viewing cone.

[0046] like Fig.10 As shown, as a preferred embodiment of the present invention, the device synchronization module 400 includes: The signal interception unit 401 is used to obtain the video signal transmitted by the target device and transmit it to the matrix switcher; A port determination unit 402, used to determine a transmission port of the matrix switcher according to the selected nearby device; The signal distribution unit 403 transmits the video signal to the selected nearby devices based on the matrix switch.

[0047] The above only describes in detail the preferred embodiments of the present invention, which is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0048] It should be understood that, although each step in the flow chart of each embodiment of the present invention is shown in sequence according to the indication of the arrow, these steps are not necessarily performed in sequence according to the order indicated by the arrow. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in each embodiment may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these sub-steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0049] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0050] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the disclosure in the specification and examples. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

Claims

1. An intelligent interactive method for a digital exhibition hall, characterized in that: The method comprises the following steps: Acquire a scene image through monitoring equipment installed in the exhibition hall, wherein the scene image is a visitor group in the focus area; Determine a target device according to the acquisition source of the scene image, wherein the target device is a digital display device that the visitor group is browsing, and the target device corresponds to the focus area one by one; Select nearby devices around the target device according to the scene image, where the nearby devices are other digital display devices around the target device; The selected nearby devices are synchronized with the target device so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

2. The intelligent interactive method of a digital exhibition hall according to claim 1, characterized in that: The step of acquiring the scene image by means of the monitoring equipment arranged in the exhibition hall specifically includes: Setting a plurality of virtual areas of interest based on the image of the monitoring device with reference to the position of the digital display device; Calculate the crowd density in each area of ​​interest using a crowd density estimation algorithm; When the crowd density in a certain area of ​​interest is greater than a set value, the monitoring device is adjusted to lock and track the area of ​​interest, and the scene image captured by the monitoring device is obtained in real time.

3. The intelligent interactive method of a digital exhibition hall according to claim 1, characterized in that: The step of selecting nearby devices around the target device according to the scene image specifically includes: Separate the crowd from the background of the scene image using background modeling and foreground separation techniques; Based on the separation results of the scene image, the position and orientation of each individual in the visitor group are obtained through computer vision detection technology; Creating a viewing cone based on the position and orientation of the individual, the viewing cone representing the field of view of each individual visitor; Nearby devices are selected through geometric calculation and spatial distribution of the viewing frustum.

4. The intelligent interaction method of a digital exhibition hall according to claim 3 is characterized in that: The step of selecting nearby devices through geometric calculation and spatial distribution of the viewing cone specifically includes: Establish a plane model based on the location distribution of the target device and nearby devices; Projecting all the viewing cones into the plane model, wherein the viewing cones are sectors with the positions of the individual visitors as vertices in the plane model; Select the visual cones of the edge positions and calculate their overlapping areas; The nearby devices in the plane model are selected according to the overlapping area, and the nearby devices are all located in the overlapping area.

5. The intelligent interaction method of a digital exhibition hall according to claim 1 is characterized in that: The step of synchronizing the selected nearby device with the target device specifically includes: Acquire the video signal transmitted by the target device and transmit it to the matrix switcher; Determine the transmission port of the matrix switcher according to the selected nearby device; Matrix switcher based routing of video signals to selected nearby devices.

6. The intelligent interaction method of a digital exhibition hall according to claim 1 is characterized in that: The method further comprises: Acquiring audio data of the interpreter through the wearable device of the interpreter in the exhibition hall, wherein the audio data is the content of the interpreter's explanation of the exhibits; Processing the audio data to improve the quality of the audio; The processed audio data is sent to the target device and the selected nearby device, so that the device can synchronously play the commentator's commentary content.

7. An intelligent interactive system for a digital exhibition hall, characterized in that: The system comprises: An image acquisition module, used to acquire a scene image through a monitoring device arranged in the exhibition hall, wherein the scene image is a visitor group in a focus area; A device determination module, used to determine a target device according to a source of the scene image, wherein the target device is a digital display device currently being browsed by a visitor group, and the target device corresponds to a focus area one by one; A device selection module is used to select nearby devices around the target device according to the scene image, wherein the nearby devices are other digital display devices around the target device; The device synchronization module is used to synchronize the selected nearby devices with the target device so that the digital display devices in the area where the visitor group is located can be displayed synchronously.

8. The intelligent interactive system of the digital exhibition hall according to claim 7 is characterized in that: The image acquisition module comprises: An area setting unit, which sets a plurality of virtual areas of interest based on the screen of the monitoring device with reference to the position of the digital display device; A crowd estimation unit, which calculates the crowd density in each area of ​​interest using a crowd density estimation algorithm; The locking shooting unit is used to adjust the monitoring equipment to lock and track a certain area of ​​interest when the crowd density in the area of ​​interest is greater than a set value, and to obtain the scene image shot by the monitoring equipment in real time.

9. The intelligent interactive system of a digital exhibition hall according to claim 7, characterized in that: The device selection module includes: An image separation unit, which separates the crowd from the background of the scene image using background modeling and foreground separation techniques; The individual calculation unit obtains the position and orientation of each individual in the visitor group through computer vision detection technology based on the separation result of the scene image; A viewing cone creation unit, used to create a viewing cone according to the position and orientation of the individual, wherein the viewing cone represents the field of view of each individual visitor; The spatial calculation unit is used to select nearby devices through geometric calculation and spatial distribution of the viewing cone.

10. The intelligent interactive system of a digital exhibition hall according to claim 7, characterized in that: The device synchronization module includes: A signal interception unit, used to obtain the video signal transmitted by the target device and transmit it to the matrix switcher; A port determination unit, used for determining a transmission port of the matrix switcher according to the selected nearby device; The signal distribution unit transmits the video signal to selected nearby devices based on the matrix switcher.

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