CN112258276A - Method for constructing online exhibition platform based on electronic map - Google Patents
Method for constructing online exhibition platform based on electronic map Download PDFInfo
- Publication number
- CN112258276A CN112258276A CN202011136355.5A CN202011136355A CN112258276A CN 112258276 A CN112258276 A CN 112258276A CN 202011136355 A CN202011136355 A CN 202011136355A CN 112258276 A CN112258276 A CN 112258276A
- Authority
- CN
- China
- Prior art keywords
- exhibition
- map
- exhibition management
- panoramic image
- management place
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
- G06Q30/0641—Electronic shopping [e-shopping] utilising user interfaces specially adapted for shopping
- G06Q30/0643—Electronic shopping [e-shopping] utilising user interfaces specially adapted for shopping graphically representing goods, e.g. 3D product representation
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/28—Databases characterised by their database models, e.g. relational or object models
- G06F16/284—Relational databases
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/29—Geographical information databases
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/954—Navigation, e.g. using categorised browsing
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Remote Sensing (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Radar, Positioning & Navigation (AREA)
- Development Economics (AREA)
- Economics (AREA)
- Marketing (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention discloses a method for constructing an online exhibition platform based on an electronic map, which can accurately position the exhibition hall site by constructing an exhibition hall site model and comprises the steps of establishing the electronic map of an exhibition hall site by utilizing an image acquisition module and an image processing module, acquiring a first panoramic image sequence of the exhibition hall site along a passageway, acquiring a second panoramic image sequence of the exhibition hall site at fixed points on a plurality of preset acquisition points in each exhibition area, establishing a position association link system, constructing a relational database, collecting exhibition hall information and constructing a set of three-dimensional panoramic exhibition map taking the exhibition platform as a target map. The invention not only reduces the requirements on the quality of the collected data, the calculation accuracy of the algorithm and the map accuracy.
Description
Technical Field
The invention relates to a method for constructing an online exhibition platform based on an electronic map.
Background
With the development of society, the exhibition is increasing day by day. However, at the time of visiting the exhibition, when the information of the characteristics and prices of the supportless tires produced by different brands and different manufacturers needs to be collected, the user using the conventional method starts to search the supportless tire special exhibition. And there is generally no exhibitions dedicated to displaying the rimless tires.
Therefore, users using the conventional method have to attend some large-scale exhibitions, such as an attraction, a car exhibition, a shanghai industrial exposition, and the like. In this case, however, the user must be free for the limited period of the exhibition and must walk around in a large exhibition meeting to browse the exhibitions of each company concerned.
Moreover, when an electronic map is constructed conventionally, sensor signals such as WIFI/Bluetooth are collected indoors, the collected positions need to be recorded in detail, and the collected coverage rate is ensured. During positioning, an indoor positioning algorithm is used, sensor data collected by a mobile phone of a user are combined, an indoor position is calculated, and if the user wants to know the place where the user is located, accurate map information is needed. This process depends on the quality of the data collected, the accuracy of the algorithm, and the accuracy of the map. And the field collection has the risk of cheating collection personnel, collects the irregular risk, and collects the wind direction with unqualified mobile phone quality and the like. The positioning algorithm has high algorithm difficulty, and has high requirements on the quality of the algorithm by combining the diversity of input data. Map accuracy, map drawing itself is a very professional matter, and the cost is high. The map information also needs to be maintained for a long time, the information of the exhibition hall is changed frequently, and if the data is not updated in time, the positioning accuracy is affected.
Disclosure of Invention
In view of the above technical limitations and practical requirements, in order to break the time and space limitations faced by previous exhibition, the exhibition site is moved to the network as it is, so that the exhibition time and period can be changed and prolonged at any time and any place, and at the same time, the audience can participate in the online exhibition platform which is formed by virtual network and is as lifelike as the real exhibition, therefore, the invention aims to provide a construction method of the online exhibition platform system.
A method for constructing an online exhibition platform based on an electronic map specifically comprises the following steps:
(1) establishing an electronic map of the exhibition management place; namely, an electronic map of the exhibition management place comprising a plurality of exhibition areas and passageways communicating the exhibition areas is established in the server, and the position of the exhibition management place is determined by a positioning module,
the image acquisition module is used for acquiring the surrounding environment of the exhibition management site in real time, the surrounding environment of the exhibition management site comprises a road static target and a road dynamic target,
the image processing module is used for identifying a road static target and a road dynamic target according to the collected surrounding environment of the exhibition management site,
the map information of the exhibition management place is acquired by the map acquisition module,
comparing the identified static road object with the map information by using a comparison module to determine the position of the object in the map,
the matching module is utilized to determine the exhibition management place on the target position of the map according to the position of the exhibition management place, so as to obtain the electronic map of the exhibition management place containing the exhibition management place,
fusing the identified road static target, road dynamic target and exhibition management place electronic map containing the exhibition management place by using a generating module to generate a target map;
(2) collecting a first panoramic image sequence of the exhibition management place along the passageway and collecting a second panoramic image sequence of the exhibition area at fixed points on a plurality of preset collecting points in each exhibition area; the geographic position information of two adjacent panoramic images in the first panoramic image sequence is continuous, and the picture information of the two adjacent panoramic images is also continuous; any panoramic image in the second panoramic image sequence is continuous with the picture information of the panoramic image;
(3) establishing a panoramic image database, namely establishing a database containing a first panoramic image sequence and a second panoramic image sequence in a server;
(4) establishing a position association link, namely associating the first panoramic image sequence and the second panoramic image sequence in the database with an electronic map of the exhibition management place through position information, wherein the position association specifically comprises the following steps: a: building a relational database, respectively building tables for GIS basic information and a corpus, b: collecting information of the exhibition management place, structuring the collected place information and inputting the structured place information into a relational database, and c: training data acquisition, d: training data preprocessing, e: training data classification, f: manual labeling, g: service deployment;
(5) and entering the exhibition management place through the electronic map of the exhibition management place, namely clicking the attention point position of any visitor on the electronic map of the exhibition management place.
The invention collects and processes the panoramic images required by exhibition or exhibition, corrects the panoramic images and the map integrated by manufacture by adding position coordinates, and forms a topological structure by corrected data to form the mutual correlation between the panoramic images; through a background editing program, advertisement positions are set in the panoramic image, characters, pictures or even videos can be embedded into the advertisement positions, collected and sorted exhibitor data are associated to specific positions in the corresponding panoramic image, and the classified exhibitor data are added in batches; and the added data are classified, a classified retrieval function is provided, and the database can be retrieved by using any keyword to find out the corresponding panoramic area description. The invention reduces the three requirements on the quality of the collected data, the calculation accuracy of the algorithm and the map accuracy. Firstly, collecting personnel do not need to go to the field for collection; secondly, a very complex positioning algorithm is not needed, and only a basic semantic analysis algorithm is needed. Again, no accurate map information is required. And it is through constructing the exhibition hall place model, can be accurate the location exhibition hall place in the specific position.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
The present invention is specifically described below by an online live-action supermarket shopping system.
With the continuous emergence of network e-commerce platforms, online e-shopping is more and more common. A3D online live-action shopping supermarket system is constructed, a real online shopping supermarket is built by utilizing an advanced GIS panoramic interaction video technology, an efficient mass video data processing technology and a mature website rapid construction technology, and the shopping experience of the user in the scene is realized, so that the user can not go out of the home and can shop in the real supermarket to select commodities. The electronic commerce system comprises a live-action acquisition system, a basic live-action database, a sharing system and a live-action display calling platform. The method comprises the following steps: (1) establishing an electronic map of the exhibition management place; the position of the exhibition management place is determined by the positioning module,
the image acquisition module is used for acquiring the surrounding environment of the exhibition management site in real time, the surrounding environment of the exhibition management site comprises a road static target and a road dynamic target,
the image processing module is used for identifying a road static target and a road dynamic target according to the collected surrounding environment of the exhibition management site,
the map information of the exhibition management place is acquired by the map acquisition module,
comparing the identified static road object with the map information by using a comparison module to determine the position of the object in the map,
the matching module is utilized to determine the exhibition management place on the target position of the map according to the position of the exhibition management place, so as to obtain the electronic map of the exhibition management place containing the exhibition management place,
fusing the identified road static target, road dynamic target and exhibition management place electronic map containing the exhibition management place by using a generating module to generate a target map;
(2) collecting a first panoramic image sequence of the exhibition management place along the passageway and collecting a second panoramic image sequence of the exhibition area at fixed points on a plurality of preset collecting points in each exhibition area; the geographic position information of two adjacent panoramic images in the first panoramic image sequence is continuous, and the picture information of the two adjacent panoramic images is also continuous; any panoramic image in the second panoramic image sequence is continuous with the picture information of the panoramic image;
(3) establishing a panoramic image database, namely establishing a database containing a first panoramic image sequence and a second panoramic image sequence in a server;
(4) establishing a position association link, namely associating the first panoramic image sequence and the second panoramic image sequence in the database with an electronic map of the exhibition management place through position information, wherein the position association specifically comprises the following steps: a: building a relational database, respectively building tables for GIS basic information and a corpus, b: collecting information of the exhibition management place, structuring the collected place information and inputting the structured place information into a relational database, and c: training data acquisition, d: training data preprocessing, e: training data classification, f: manual labeling, g: service deployment;
(5) and entering the exhibition management place through the electronic map of the exhibition management place, namely clicking the attention point position of any visitor on the electronic map of the exhibition management place.
The training data preprocessing comprises weighting- > de-weighting, cleaning and converting the training data.
The training data classification specifically includes classifying the collected data by using an unsupervised learning algorithm, performing text vectorization (BOW + tf-idf) on the classified data, and matching the most similar exhibition management places by using a cosine similarity algorithm.
The online live-action supermarket shopping system is realized by the following steps:
a. acquiring and processing a panoramic image of a real scene of a supermarket;
b. integrating scenes of real scenes of a supermarket to manufacture a map;
c. carrying out correction processing of adding position coordinates on the panoramic images and the manufactured map, and forming a topological structure through corrected data to form mutual correlation between the panoramic images;
d. through a background editing program, setting the placing positions of various supermarket commodities in the panoramic image, embedding characters, pictures or even videos in the placing positions of corresponding supermarket commodities, associating the collected and sorted supermarket commodity data with the corresponding specific positions in the panoramic image, and adding the classified supermarket commodity data into the panoramic image in batches; classifying the added data to provide a classified retrieval function, retrieving a database by using any keyword, and finding out corresponding panoramic area description;
e. according to application requirements, classification processing, classification browsing, classification searching and fuzzy searching of supermarket commodities are achieved, and supermarket shopping guide is conducted on users;
f. platform publishing is carried out through a public network, and the platform can meet the access requirement and stability of large and medium websites.
One) real scene acquisition system
The live-action acquisition processing is used for finishing image data acquisition work related to an online live-action supermarket shopping system and image data processing in a later period so as to meet the requirement of data display and calling, and the flow adopts a flow line process structure. The live-action acquisition processing module mainly performs offline processing and comprises an acquisition module, a later-stage data processing module and a data deployment module. (see example 1)
The three parts are mutually systematic and mutually dependent, and the whole process of background production and processing of live-action data is included. The standardized flow is distinguished and managed, the data quality and the stability of data provision are guaranteed, and meanwhile, data updating maintenance service is provided for a two-dimensional plane map data storage and calling unit and a mass live-action map data storage and calling unit in a software system.
1) Data acquisition module
The data acquisition module comprises a continuous acquisition mode with high updating frequency and short-term live-action acquisition with low updating frequency. The long collection of the persistence of high frequency is applicable to by the shooting object or by the condition that the environment frequently changes, and this kind of condition often takes place in municipal administration, water conservancy construction, flood control flood prevention, wait that the environment takes place the place of relatively fast change. The short-term live-action collection is suitable for shooting scenes, such as cultural relics, scenic spots, indoor buildings and exhibition sites, of shot objects, which do not change too much within a predictable time period, such as several months, or appear only in a short term. The data acquisition module needs to customize the updating frequency according to the requirements of customers, and ensures the latest data and the storage of key points. The data acquisition module can be divided into external scene acquisition and internal scene acquisition according to the shooting area, for example, in the field real scene data acquisition, the data acquisition module can be divided into field internal scene acquisition and field external scene acquisition. According to the difference of shooting modes and shooting equipment, automatic shooting and manual shooting can be realized. The method is characterized in that quick automatic shooting is adopted for places where vehicles easily arrive, and slow manual shooting is adopted for places where vehicles cannot arrive. And the shooting range and the shooting mode are customized according to the requirements of customers. Generally, the overall shooting range, mode and frequency need to be set up according to the requirements of clients.
In this embodiment, a large part of the real-scene supermarket platform works to collect 360-degree spatial image information with the point as the center of sphere at the point, and the lossless image is stored.
The larger the supermarket is, the larger the acquisition range is, the more the number of the acquisition points is, and in order to ensure the smooth walking effect, the higher the density of the acquisition points is.
The real scene of the walkway between the supermarket shelves must be contained within the shooting range. The entrance of the supermarket and the road real scene which is perpendicular to the shelf and close to the shelf must be included in the shooting range.
A certain distance must be kept between live-action acquisition points, generally 1.5 meters of each live-action acquisition point, on the same straight line road, the distance between two adjacent acquisition points is controlled within 1.5 meters, and the error of 0.15 meter between the actual distance and 1.5 meters is allowed. The real image of 360 degrees of commodity is gathered, and the commodity name on the commodity nameplate can be distinguished through the image. The first stage of the project needs to collect commodity data within 200.
The commodity name, production date, quality guarantee period, weight and the like are input into the commodity database. The commodity nominal can be updated and modified at any time through a background program.
2) Post data processing module
The method mainly comprises the steps of splicing, correcting/filtering, blocking, encrypting and positioning the collected pictures to generate picture association.
In the splicing process, the splicing technology of the patent is obtained through Shanghai Jie picture software, the collected pictures are quickly and seamlessly spliced to generate a live-action picture which accords with the three-dimensional perspective effect, and meanwhile, the picture pixel fusion technology developed by the department of China is applied to reduce the color difference caused by different exposures so as to improve the picture quality.
And checking and correcting the pictures one by one, and picking out unqualified pictures to ensure the best quality of the original pictures.
The blocking and encryption are processes of fast batch cutting and encoding of the original pictures by using a specific algorithm. Block encryption is to ensure that picture data is restricted to only a framework of principles of limited use and authorized use. The original picture data is not available to others without permission of the data owner.
The picture positioning technology is used for positioning each live-action picture in a plane space. So that each corresponding picture can be found by the plane coordinates.
The generation of the association between the pictures needs to depend on the topological structure, the perfect effect of walking needs to be generated according to the topological structure, and the generation program of the topological structure needs to be customized according to the shooting time, space and shooting mode, so that the walking effect is achieved according to the needs of customers.
3) Data deployment module
Each of the above-mentioned steps of data processing backups and manages data, and ensures the integrity, safety, and order of the data. The data processing method has the advantages that collected real scenes and related data are accumulated day by day and large in data volume when the data are large in a plurality of cities and small in a construction site, and the data are required to be backed up, stored and managed in each step of data processing, so that the technical advancement and rigor of the data processing are required. The data uploading cataloging, storing and calling have internal strict sign-in and supervision flows.
And each picture and each coordinate are valued to ensure the safety of data. On the premise of complete and safe data, the accuracy of calling the live-action related data through the interface and the database manipulation efficiency are guaranteed by the database structure and the storage process of colleges and universities. (see example 1)
a) Indexing a mass of pictures;
and the massive original pictures are cataloged and indexed, so that the storage and the access are convenient.
b) Generating a live-action coordinate;
and ensuring the one-to-one correspondence between the live-action pictures and the space coordinates, so that the live-action pictures have geographic attributes.
c) Positioning a live-action map;
the coordinates are decrypted or calculated into the coordinates stored in the picture by a formula, so that a hot spot is guaranteed to be clicked on a map, and after the coordinates of the spot are obtained, the real scene corresponding to the spot can be correctly accessed.
d) Positioning the live-action;
the online live-action supermarket shopping system of the embodiment can know the detailed information of the commodity by expressing the supermarket live-action and the commodity live-action; listing the commodities matched with the retrieval rule for the user to select; the commodity live-action data acquisition and updating requires to update the commodity live-action and the related nameplate information; archiving and managing supermarket live-action image data and commodity influence data; managing the information such as nameplate information, inventory, access times and the like related to the commodities; manage the user's personal profile and shopping information, etc.
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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. A method for constructing an online exhibition platform based on an electronic map is characterized in that: the method comprises the following steps:
(1) establishing an electronic map of the exhibition management place:
the position of the exhibition management place is determined by the positioning module,
the image acquisition module is used for acquiring the surrounding environment of the exhibition management site in real time, the surrounding environment of the exhibition management site comprises a road static target and a road dynamic target,
the image processing module is used for identifying a road static target and a road dynamic target according to the collected surrounding environment of the exhibition management site,
the map information of the exhibition management place is acquired by the map acquisition module,
comparing the identified static road object with the map information by using a comparison module to determine the position of the object in the map,
the matching module is utilized to determine the exhibition management place on the target position of the map according to the position of the exhibition management place, so as to obtain the electronic map of the exhibition management place containing the exhibition management place,
fusing the identified road static target, road dynamic target and exhibition management place electronic map containing the exhibition management place by using a generating module to generate a target map;
(2) collecting a first panoramic image sequence of the exhibition management place along the passageway and collecting a second panoramic image sequence of the exhibition area at fixed points on a plurality of preset collecting points in each exhibition area; the geographic position information of two adjacent panoramic images in the first panoramic image sequence is continuous, and the picture information of the two adjacent panoramic images is also continuous; any panoramic image in the second panoramic image sequence is continuous with the picture information of the panoramic image;
(3) establishing a panoramic image database, namely establishing a database containing a first panoramic image sequence and a second panoramic image sequence in a server;
(4) establishing a position association link, namely associating the first panoramic image sequence and the second panoramic image sequence in the database with an electronic map of the exhibition management place through position information, wherein the position association specifically comprises the following steps: a: building a relational database, respectively building tables for GIS basic information and a corpus, b: collecting information of the exhibition management place, structuring the collected place information and inputting the structured place information into a relational database, and c: training data acquisition, d: training data preprocessing, e: training data classification, f: manual labeling, g: service deployment;
(5) and entering the exhibition management place through the electronic map of the exhibition management place, namely clicking the attention point position of any visitor on the electronic map of the exhibition management place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136355.5A CN112258276A (en) | 2020-10-22 | 2020-10-22 | Method for constructing online exhibition platform based on electronic map |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136355.5A CN112258276A (en) | 2020-10-22 | 2020-10-22 | Method for constructing online exhibition platform based on electronic map |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112258276A true CN112258276A (en) | 2021-01-22 |
Family
ID=74264536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011136355.5A Withdrawn CN112258276A (en) | 2020-10-22 | 2020-10-22 | Method for constructing online exhibition platform based on electronic map |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112258276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116184312A (en) * | 2022-12-22 | 2023-05-30 | 泰州雷德波达定位导航科技有限公司 | Indoor crowdsourcing fingerprint library construction method based on semantic Wi-Fi |
-
2020
- 2020-10-22 CN CN202011136355.5A patent/CN112258276A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116184312A (en) * | 2022-12-22 | 2023-05-30 | 泰州雷德波达定位导航科技有限公司 | Indoor crowdsourcing fingerprint library construction method based on semantic Wi-Fi |
| CN116184312B (en) * | 2022-12-22 | 2023-11-21 | 泰州雷德波达定位导航科技有限公司 | Indoor crowdsourcing fingerprint library construction method based on semantic Wi-Fi |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101763607B (en) | Online exhibition platform system constructed by using panoramic electronic map and construction method thereof | |
| CN113065000B (en) | A Multi-source Heterogeneous Data Fusion Method Based on Geographic Entity | |
| US10380410B2 (en) | Apparatus and method for image-based positioning, orientation and situational awareness | |
| CN103314395B (en) | The method create, connected and show three-dimensional object | |
| CN100533486C (en) | A method for fully automatic generation of digital city | |
| CN116319862A (en) | System and method for intelligently matching digital libraries | |
| CN111795688A (en) | A realization method of library navigation system based on deep learning and augmented reality | |
| US20170039264A1 (en) | Area modeling by geographic photo label analysis | |
| CN111222190A (en) | Ancient building management system | |
| CN111221867B (en) | Protective building information management system | |
| CN106446987B (en) | Intelligent management system and method of museum collections based on Internet of Things and indoor GIS | |
| CN106469339A (en) | A kind of around geographic information application and provide the system of infrastructure service | |
| CN112148820A (en) | A method and system for underwater terrain data recognition and service based on deep learning | |
| CN106878232A (en) | A kind of construction project moves observation system | |
| CN113763216A (en) | WebGIS-based smart campus system | |
| US20220179887A1 (en) | Systems and methods for displaying and using discrete micro-location identifiers | |
| Claridades et al. | Developing a data model of indoor points of interest to support location‐based services | |
| CN112258276A (en) | Method for constructing online exhibition platform based on electronic map | |
| Pedersen et al. | Geolocating traffic signs using crowd-sourced imagery | |
| CN112214566A (en) | Method for constructing online exhibition platform by using panoramic electronic map | |
| Kim et al. | Crawling method for image-based space matching in digital twin smart cities | |
| Li et al. | A Landmark-based cognition strength grid model for indoor guidance | |
| CN112256771A (en) | Exhibition platform system for expo | |
| CN112311778A (en) | Online exhibition platform system constructed by utilizing panoramic electronic map | |
| CN106777078A (en) | A kind of video retrieval method and system based on information database |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210122 |