CN114511229A - Exhibition information watching system and method in virtual reality environment - Google Patents
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Abstract
The invention discloses a system and a method for viewing exhibition information in a virtual reality environment, wherein the viewing system comprises a virtual model establishing module, a virtual model displaying module, a user viewing detection module and an information displaying judgment module, the virtual model establishing module acquires offline exhibition data in advance and establishes an offline exhibition three-dimensional virtual model, the virtual model displaying module displays the offline exhibition three-dimensional virtual model to a user when the user wears VR equipment, the user viewing detection module sets an exhibited article watched by the user as a target exhibited article, and the information displaying judgment module acquires information of the target exhibited article and judges whether to display the detailed information of the target exhibited article to the user when the time length of the user viewing the target exhibited article is longer than a first time length.
Description
Technical Field
The invention relates to the technical field of exhibition watching, in particular to an exhibition information watching system and method in a virtual reality environment.
Background
The exhibition is an activity of fumigating pottery which can enrich the amateur life and accept the art. However, in real life, many exhibitions have certain time limitation, and a specific exhibition can be watched only at a specific time.
Virtual reality technology is a computer simulation system that can create and experience a virtual world, which uses a computer to create a simulated environment into which a user is immersed. Combining the exhibition with the virtual reality technology can make people watch the exhibition at any time, but among the prior art, it is not intelligent enough when using the virtual reality technology to watch the exhibition.
Disclosure of Invention
The present invention is directed to a system and a method for viewing exhibition information in a virtual reality environment, so as to solve the problems mentioned in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an exhibition information system of watching under virtual reality environment, the system of watching includes that virtual model establishes module, virtual model show module, user watch detection module and information show judgement module, virtual model establishes module gathers offline exhibition data in advance, establishes the three-dimensional virtual model of offline exhibition, virtual model show module wears the VR equipment when the user, shows the three-dimensional virtual model of offline exhibition for the user, the user watches that the detection module establishes the exhibit that the user is watching and is the target exhibit, and when detecting that the time length that the user watched the target exhibit is greater than first time length, information show judgement module gathers the information of target exhibit, judges whether to show the detailed information of target exhibit to the user.
Further, the information display judging module comprises an offline attention index obtaining module, a user attention index obtaining module, a comprehensive attention index calculating module and a comprehensive attention index comparing module, wherein the offline attention index obtaining module is used for collecting the condition of the target exhibit during online exhibition, and accordingly, an offline attention index w of the target exhibit is obtained, the user attention index obtaining module collects sight line information of a user in a first time period of watching the target exhibit, and accordingly obtaining a user attention index v of the target exhibit, the comprehensive attention index calculation module calculates the comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w, the comprehensive concern index comparison module compares a comprehensive concern index of the target exhibit with a comprehensive concern threshold, and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
Further, the offline interest index obtaining module comprises a candidate audience selecting module, a target exhibit dividing module, an interest exhibit selecting module, an exhibit effective index calculating module, an effective audience selecting module and an offline interest index calculating module, wherein in online exhibition, the candidate audience selecting module sets the audience detected in front of the target exhibit as the candidate audience, the total number of the candidate audience is Rz, the target exhibit dividing module divides the target exhibit into m sections of exhibits in the horizontal direction in advance, the interest exhibit selecting module obtains the distance between each candidate audience and the target exhibit in front of each section of the exhibit, if the distance between a certain candidate audience and the target exhibit in front of a certain section of the exhibit is less than or equal to the interest distance, the section of the exhibit is the interest exhibit of the candidate audience, the exhibit effective index calculating module calculates the effective index H of the certain candidate audience to the target exhibit, wherein k/m, k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit, the effective audience selecting module selects the candidate audience as the effective audience of the target exhibit when the effective index of a certain candidate audience to the target exhibit is larger than an effective threshold value, the offline interest index calculating module calculates the offline interest index w of the target exhibit as Ry/Rz, wherein Ry is the number of the effective audiences of the target exhibit.
Further, the user attention index obtaining module includes a candidate index counting module, a preferred exhibit selecting module, an interest exhibit selecting module and a user attention index calculating module, where the candidate index counting module adds 1 to the candidate index b of a certain exhibited article when the certain exhibited article is an attention exhibited article of a certain candidate audience, where an initial value of the candidate index of the certain exhibited article is 0, the preferred exhibit selecting module is configured to increase the preferred index b/Rz of the certain exhibited article to be a preferred exhibited article when the preferred index b/Rz of the certain exhibited article is greater than a preferred threshold, the interest exhibit selecting module obtains a position of the preferred exhibited article in the target exhibited article, and if the position is the preferred position, the preferred exhibited article is an interest exhibit of the target exhibited article, where the preferred position is a position of the target exhibited article within a preset length range from a side close to the exhibited article which the user has viewed, the user attention index calculation module collects the sum ts of the time lengths that the sight line stays on all interested exhibits of the target exhibit in the first time length Tz when the user watches the target exhibit, and then the user attention index v of the target exhibit is ts/Tz.
A viewing method of exhibition information in a virtual reality environment, the viewing method comprising the steps of:
collecting off-line exhibition data in advance, establishing an off-line exhibition three-dimensional virtual model,
when a user wears VR equipment, the three-dimensional virtual model of the off-line exhibition is displayed to the user, the exhibition article which the user watches is set as a target exhibition article,
and when the fact that the time length that the user watches the target exhibit is longer than the first time length is detected, acquiring the information of the target exhibit, and judging whether the detailed information of the target exhibit is displayed to the user or not.
Further, the acquiring information of the target exhibit includes:
collecting the condition of the target exhibit during the online exhibition, and acquiring the offline attention index w of the target exhibit according to the condition,
the sight line information of a user in the first time period of watching a target exhibit is collected, the user attention index v of the target exhibit is obtained according to the sight line information,
calculating a comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w,
and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
Further, the obtaining of the offline attention index w of the target exhibit includes:
in the online exhibition, the audience detected in front of the target exhibit is set as a candidate audience, the total number of the candidate audience is Rz,
evenly dividing a target exhibit into m sections of exhibits along the horizontal direction in advance, acquiring the distance between each candidate audience and the target exhibit in front of each section of exhibit, if the distance between a certain candidate audience and the target exhibit in front of a certain section of exhibit is less than or equal to the attention distance, the section of exhibit is the attention exhibit of the candidate audience,
calculating the effective index H ═ k/m of a certain candidate audience to the target exhibit, wherein k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit,
if the target exhibit's effectiveness index for a candidate viewer is greater than an effectiveness threshold, then the candidate viewer is an effective viewer of the target exhibit,
then the offline interest index w of the target exhibit is Ry/Rz, where Ry is the number of valid viewers of the target exhibit.
Further, the acquiring the user attention index v of the target exhibit includes:
if a certain exhibit is an attention exhibit of a certain candidate audience, the candidate index b of the certain exhibit is added with 1, wherein the initial value of the candidate index of the certain exhibit is 0,
if the preferred index b/Rz for a given sample is greater than the preferred threshold, then that sample is the preferred sample,
acquiring the position of a preferred exhibit in a target exhibit, and if the position is the preferred position, the preferred exhibit is an interesting exhibit of the target exhibit, wherein the preferred position is a position of the target exhibit within a preset length range from a side close to the exhibit which has been viewed by a user,
and collecting the sum ts of the time lengths of sight lines of the users staying on all interested exhibits of the target exhibits in the first time length Tz of watching the target exhibits, and then, the user attention index v of the target exhibits is ts/Tz.
Further, the detail information of the target exhibit comprises the explanation information of the target exhibit.
Compared with the prior art, the invention has the following beneficial effects: according to the method and the device, the information of the user watching the exhibit and the information of the exhibit watched by the audience on line are collected and analyzed, so that whether the detailed information of the exhibit needs to be provided for the user or not is intelligently and accurately judged, and the use experience of the user watching the exhibit by using virtual reality is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic block diagram of an exhibition information viewing system in a virtual reality environment according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an exhibition information system of watching under virtual reality environment, the system of watching includes that virtual model establishes module, virtual model show module, user watch detection module and information show judgement module, virtual model establishes module gathers offline exhibition data in advance, establishes the three-dimensional virtual model of offline exhibition, virtual model show module wears the VR equipment when the user, shows the three-dimensional virtual model of offline exhibition for the user, the user watches that the detection module establishes the exhibit that the user is watching and is the target exhibit, and when detecting that the time length that the user watched the target exhibit is greater than first time length, information show judgement module gathers the information of target exhibit, judges whether to show the detailed information of target exhibit to the user.
The information display judging module comprises an offline attention index acquiring module, a user attention index acquiring module, a comprehensive attention index calculating module and a comprehensive attention index comparing module, wherein the offline attention index acquiring module acquires the condition of the target exhibit during online exhibition, and accordingly, an offline attention index w of the target exhibit is obtained, the user attention index obtaining module collects sight line information of a user in a first time period of watching the target exhibit, and accordingly obtaining a user attention index v of the target exhibit, the comprehensive attention index calculation module calculates the comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w, the comprehensive concern index comparison module compares a comprehensive concern index of the target exhibit with a comprehensive concern threshold, and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
The off-line interest index obtaining module comprises a candidate audience selecting module, a target exhibit dividing module, an interest exhibit selecting module, an exhibit effective index calculating module, an effective audience selecting module and an off-line interest index calculating module, wherein the candidate audience selecting module is used for setting the audience detected in front of the target exhibit as the candidate audience in the off-line exhibition, the total number of the candidate audience is Rz, the target exhibit dividing module divides the target exhibit into m sections of exhibits in advance along the horizontal direction, the interest exhibit selecting module is used for obtaining the distance between each candidate audience and the target exhibit in front of each section of exhibit, if the distance between a candidate audience and the target exhibit in front of a section of exhibit is less than or equal to the interest distance, the section of exhibit is the interest exhibit of the candidate audience, the exhibit effective index calculating module is used for calculating the effective index H of the candidate audience to the target exhibit, wherein the effective index H is k/m, k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit, the effective audience selecting module selects the candidate audience as the effective audience of the target exhibit when the effective index of a certain candidate audience to the target exhibit is larger than an effective threshold value, the offline interest index calculating module calculates the offline interest index w of the target exhibit as Ry/Rz, wherein Ry is the number of the effective audiences of the target exhibit.
The user attention index obtaining module comprises a candidate index counting module, a preferred exhibit selecting module, an interest exhibit selecting module and a user attention index calculating module, wherein the candidate index counting module adds 1 to the candidate index b of a certain exhibited article when the certain exhibited article is an attention exhibited article of a certain candidate audience, the initial value of the candidate index of the certain exhibited article is 0, the preferred exhibit selecting module is used for obtaining the position of the preferred exhibited article in a target exhibited article when the preferred index b/Rz of the certain exhibited article is greater than a preferred threshold value, the preferred exhibited article is the preferred exhibited article, the interest exhibit selecting module obtains the position of the preferred exhibited article in the target exhibited article, if the position is the preferred position, the preferred exhibited article is the interest exhibited article of the target exhibited article, and the preferred position is the position of the target exhibited article within a preset length range close to one side of the exhibited article which the user has watched, the user attention index calculation module collects the sum ts of the time lengths that the sight line stays on all interested exhibits of the target exhibit in the first time length Tz when the user watches the target exhibit, and then the user attention index v of the target exhibit is ts/Tz.
A viewing method of exhibition information in a virtual reality environment, the viewing method comprising the steps of:
collecting off-line exhibition data in advance, establishing an off-line exhibition three-dimensional virtual model,
when a user wears VR equipment, the three-dimensional virtual model of the off-line exhibition is displayed to the user, the exhibition article which the user watches is set as a target exhibition article,
when the fact that the time length that the user watches the target exhibit is longer than the first time length is detected, the fact that the user is possibly interested in the target exhibit is indicated, information of the target exhibit is collected, whether the detailed information of the target exhibit is displayed to the user or not is judged, the detailed information of the target exhibit comprises explanation information of the target exhibit, and the explanation information is used for the user to further know the target exhibit; the exhibition in this embodiment is a painting exhibition.
The collecting information of the target exhibit comprises:
collecting the condition of the target exhibit during the online exhibition, and acquiring the offline attention index w of the target exhibit according to the condition,
the acquiring of the offline interest index w of the target exhibit comprises the following steps:
in the online exhibition, the audience detected in front of the target exhibit is set as a candidate audience, the total number of the candidate audience is Rz,
dividing a target exhibit into m sections of exhibits along the horizontal direction, generally, setting a railing in front of the exhibit, and when the audience watches the exhibit, the exhibit will be close to the exhibit, so as to obtain the distance between each candidate audience and the target exhibit before each section of exhibit, if the distance between a certain candidate audience and the target exhibit before a certain section of exhibit is less than or equal to the attention distance, which indicates that the audience is interested in the partial exhibits, then the section of exhibit is the attention exhibit of the candidate audience,
calculating the effective index H ═ k/m of a certain candidate audience to the target exhibit, wherein k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit,
if the effective index of a certain candidate audience to the target exhibit is larger than the effective threshold value, the candidate audience is the effective audience of the target exhibit, and whether the audience is really interested in the target exhibit is judged through the effective index in the application considering that the off-line candidate audience is probably to avoid pedestrians and the situation that the off-line candidate audience is possibly closer to the target exhibit is possible to occur;
then the offline interest index w of the target exhibit is Ry/Rz, where Ry is the number of valid viewers of the target exhibit. When the offline interest index of the target exhibit is large, the target exhibit is more interested, and more information of the target exhibit can be further known;
the method includes the steps of collecting sight line information of a user in a first time period when the user watches a target exhibit, and accordingly obtaining a user attention index v of the target exhibit, wherein the step of obtaining the user attention index v of the target exhibit comprises the following steps:
if a certain exhibit is an attention exhibit of a certain candidate audience, the candidate index b of the certain exhibit is added with 1, wherein the initial value of the candidate index of the certain exhibit is 0,
if the preferred index b/Rz for a given sample is greater than the preferred threshold, then that sample is the preferred sample,
obtaining the position of a preferred exhibit in a target exhibit, and if the preferred position of the preferred exhibit in the target exhibit is the preferred position, the preferred exhibit is the interesting exhibit of the target exhibit, wherein the preferred position is the position of the target exhibit within a preset length range from a side close to the exhibit that a user has viewed, for example, the user has viewed in the left-to-right direction, the left side of the target exhibit is the exhibit that the user has viewed, the preferred position in the target exhibit is the position within the preset length range from the left end of the target exhibit to the right, for example, the preset length is three-fourths of the width of the exhibit, and the positions from the left end of the target exhibit to the three-fourths of the width of the exhibit all belong to the preferred position; the reason why the interested showpiece is obtained by further screening the position of the preferred showpiece in the application is that when the user stays to a position other than the preferred position, the user probably wants to see the next exhibition, so that the error of subsequently judging whether the user needs to explain the information is reduced by further screening through the preferred position;
and collecting the sum ts of the time lengths of sight lines of the users staying on all interested exhibits of the target exhibits in the first time length Tz of watching the target exhibits, and then, the user attention index v of the target exhibits is ts/Tz.
Calculating a comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w,
and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an exhibition information system of watching under virtual reality environment, a serial communication port, the system of watching includes that virtual model establishes module, virtual model show module, user watch detection module and information display judge module, virtual model establishes the module and gathers off-line exhibition data in advance, establishes the three-dimensional virtual model of off-line exhibition, virtual model show module wears VR equipment when the user, shows the three-dimensional virtual model of off-line exhibition for the user, the user watches that the detection module establishes the exhibit that the user is watching and is the target exhibit, and when detecting that the time length that the user watched the target exhibit is greater than first time length, information display judge module gathers the information of target exhibit, judges whether to the detail information of user's show target exhibit.
2. The system for viewing exhibition information in virtual reality environment as claimed in claim 1, wherein: the information display judging module comprises an offline attention index acquiring module, a user attention index acquiring module, a comprehensive attention index calculating module and a comprehensive attention index comparing module, wherein the offline attention index acquiring module acquires the condition of the target exhibit during online exhibition, and accordingly, an offline attention index w of the target exhibit is obtained, the user attention index obtaining module collects sight line information of a user in a first time period of watching the target exhibit, and accordingly obtaining a user attention index v of the target exhibit, the comprehensive attention index calculation module calculates the comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w, the comprehensive concern index comparison module compares a comprehensive concern index of the target exhibit with a comprehensive concern threshold, and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
3. The system for viewing exhibition information in virtual reality environment as claimed in claim 2, wherein: the off-line interest index obtaining module comprises a candidate audience selecting module, a target exhibit dividing module, an interest exhibit selecting module, an exhibit effective index calculating module, an effective audience selecting module and an off-line interest index calculating module, wherein the candidate audience selecting module is used for setting the audience detected in front of the target exhibit as the candidate audience in the off-line exhibition, the total number of the candidate audience is Rz, the target exhibit dividing module divides the target exhibit into m sections of exhibits in advance along the horizontal direction, the interest exhibit selecting module is used for obtaining the distance between each candidate audience and the target exhibit in front of each section of exhibit, if the distance between a candidate audience and the target exhibit in front of a section of exhibit is less than or equal to the interest distance, the section of exhibit is the interest exhibit of the candidate audience, the exhibit effective index calculating module is used for calculating the effective index H of the candidate audience to the target exhibit, wherein the effective index H is k/m, k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit, the effective audience selecting module selects the candidate audience as the effective audience of the target exhibit when the effective index of a certain candidate audience to the target exhibit is larger than an effective threshold value, the offline interest index calculating module calculates the offline interest index w of the target exhibit as Ry/Rz, wherein Ry is the number of the effective audiences of the target exhibit.
4. The system for viewing exhibition information in virtual reality environment as claimed in claim 3, wherein: the user attention index obtaining module comprises a candidate index counting module, a preferred exhibit selecting module, an interest exhibit selecting module and a user attention index calculating module, wherein the candidate index counting module adds 1 to the candidate index b of a certain exhibited article when the certain exhibited article is an attention exhibited article of a certain candidate audience, the initial value of the candidate index of the certain exhibited article is 0, the preferred exhibit selecting module is used for obtaining the position of the preferred exhibited article in a target exhibited article when the preferred index b/Rz of the certain exhibited article is greater than a preferred threshold value, the preferred exhibited article is the preferred exhibited article, the interest exhibit selecting module obtains the position of the preferred exhibited article in the target exhibited article, if the position is the preferred position, the preferred exhibited article is the interest exhibited article of the target exhibited article, and the preferred position is the position of the target exhibited article within a preset length range close to one side of the exhibited article which the user has watched, the user attention index calculation module collects the sum ts of the time lengths that the sight line stays on all interested exhibits of the target exhibit in the first time length Tz when the user watches the target exhibit, and then the user attention index v of the target exhibit is ts/Tz.
5. A method for viewing exhibition information in a virtual reality environment is characterized in that: the viewing method includes the steps of:
collecting off-line exhibition data in advance, establishing an off-line exhibition three-dimensional virtual model,
when a user wears VR equipment, the three-dimensional virtual model of the off-line exhibition is displayed to the user, the exhibition article which the user watches is set as a target exhibition article,
and when the fact that the time length that the user watches the target exhibit is longer than the first time length is detected, acquiring the information of the target exhibit, and judging whether the detailed information of the target exhibit is displayed to the user or not.
6. The method for viewing exhibition information in virtual reality environment as claimed in claim 5, wherein: the collecting information of the target exhibit comprises:
collecting the condition of the target exhibit during the online exhibition, and acquiring the offline attention index w of the target exhibit according to the condition,
the sight line information of a user in the first time period of watching a target exhibit is collected, the user attention index v of the target exhibit is obtained according to the sight line information,
calculating a comprehensive attention index z of the target exhibit to be 0.5 v +0.5 w,
and if the comprehensive attention index of the target exhibit is larger than the comprehensive attention threshold value, displaying the detailed information of the target exhibit to the user.
7. The method for viewing exhibition information in virtual reality environment as claimed in claim 1, wherein: the acquiring of the offline interest index w of the target exhibit comprises the following steps:
in the online exhibition, the audience detected in front of the target exhibit is set as a candidate audience, the total number of the candidate audience is Rz,
evenly dividing a target exhibit into m sections of exhibits along the horizontal direction in advance, acquiring the distance between each candidate audience and the target exhibit in front of each section of exhibit, if the distance between a certain candidate audience and the target exhibit in front of a certain section of exhibit is less than or equal to the attention distance, the section of exhibit is the attention exhibit of the candidate audience,
calculating the effective index H ═ k/m of a certain candidate audience to the target exhibit, wherein k is the number of concerned exhibits of the candidate audience in the exhibits corresponding to the target exhibit,
if the target exhibit's effectiveness index for a candidate viewer is greater than an effectiveness threshold, then the candidate viewer is an effective viewer of the target exhibit,
then the offline interest index w of the target exhibit is Ry/Rz, where Ry is the number of valid viewers of the target exhibit.
8. The method for viewing exhibition information in virtual reality environment as claimed in claim 5, wherein: the acquiring of the user attention index v of the target exhibit comprises the following steps:
if a certain exhibit is an attention exhibit of a certain candidate audience, the candidate index b of the certain exhibit is added with 1, wherein the initial value of the candidate index of the certain exhibit is 0,
if the preferred index b/Rz for a given sample is greater than the preferred threshold, then that sample is the preferred sample,
acquiring the position of a preferred exhibit in a target exhibit, and if the position is the preferred position, the preferred exhibit is an interesting exhibit of the target exhibit, wherein the preferred position is a position of the target exhibit within a preset length range from a side close to the exhibit which has been viewed by a user,
and collecting the sum ts of the time lengths of sight lines of the users staying on all interested exhibits of the target exhibits in the first time length Tz of watching the target exhibits, and then, the user attention index v of the target exhibits is ts/Tz.
9. The method for viewing exhibition information in virtual reality environment as claimed in claim 5, wherein: the detail information of the target exhibit comprises explanation information of the target exhibit.
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| CN118015939A (en) * | 2024-03-13 | 2024-05-10 | 西藏自然科学博物馆 | Holographic navigation display system method for electronic museum for measuring science popularization knowledge |
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