CN102194007B - System and method for acquiring mobile augmented reality information - Google Patents
System and method for acquiring mobile augmented reality information Download PDFInfo
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Abstract
The invention provides a system and a method for acquiring mobile augmented reality information. The method comprises the following steps of: acquiring image information, and extracting image characteristics of the image information; determining an information platform needed to establish connection, and connecting one or a plurality of information platforms according to an information platform address; carrying the image characteristics and position information in a request parameter, and transmitting the request parameter to the information platform; and searching through the information platform according to the request parameter so as to acquire content information matched with the request parameter, and returning the content information to an augmented reality service processing platform. By the method, the acquisition accuracy of the information is improved, and the information can be accurately matched and superposed with realistic scenes.
Description
Technical field
The present invention relates to mobile communication value-added service field, relate in particular to the system and method that obtains mobile augmented reality information.
Background technology
There is at present the augmented reality application of a class based on mobile terminal, terminal is obtained the positional information of present position, then service process platform is processed and is searched for, the information of return message point, and in terminal, the outdoor scene of information point and terminal lens shooting is merged and represented.This application is worked as user and is aimed at the mark with mobile phone camera, on screen, just can see the related text prompting that is superimposed upon on live-action image or virtual image, label, obtain various relevent informations, comment, save the trouble that user carries out inputted search, new experience is provided.
This type of is applied on framework at present, the existing service process platform processing scheme separated with information platform, service process platform is by transmiting a request to information platform, content obtains information, in existing scheme, the parameter of the mutual request of business platform and information platform only limits to position longitude and latitude, the error of positioning result causes the information obtaining more, precision is inadequate, service process platform may be difficult to get the accurate management information of outdoor scene of required lens shooting, and mate stack with the image of reality scene, or the effect of virtual information stack is poor, affecting user experiences.
Summary of the invention
In view of more than, the object of the invention is to propose to obtain the system and method for mobile augmented reality information.
According to an aspect of the present invention, propose to obtain the system of mobile augmented reality information, wherein:
Augmented reality service process platform comprises:
Position acquisition unit, for obtaining the positional information of Location, sends positional information to control module;
Image acquisition unit, for obtaining image information, sends image information to image analyzing unit;
Image analyzing unit, carries out signature analysis for the image information that image acquisition unit is obtained, and extracts characteristics of image, sends characteristics of image to control module;
Control module is connected with position acquisition unit, direction acquiring unit, image acquisition unit, image analyzing unit respectively, for characteristics of image and positional information are carried to required parameter, and definite required parameter information platform that will mail to;
Information platform administrative unit, for the information of overhead platform, comprises information platform information bank, and each information platform has corresponding record in this information bank;
Information platform interface unit, for being connected communication with each information platform, sends request parameter and obtains the content information of feedback to information platform according to interface protocol;
Information platform comprises:
Interface unit, has link address, for being connected communication with augmented reality service process platform, obtains required parameter feedback content information;
Linkage unit, is connected with interface unit, content management units respectively, for obtaining required parameter from interface unit, obtains the content information of mating with required parameter from content management units, sends content information to interface unit;
Content management units, for searching the content information of coupling and sending linkage unit to according to required parameter.
According to a further aspect of the invention, also propose to obtain the method for mobile augmented reality information, comprise the steps:
Augmented reality service process platform is obtained image information, and image information is extracted to characteristics of image;
Augmented reality service process platform is determined the information platform that will connect, and according to information platform address, connects one or more information platforms;
Augmented reality service process platform is carried at characteristics of image and positional information in required parameter, and required parameter is dealt into information platform;
Information platform is searched for according to required parameter, obtains the content information of mating with required parameter, returns to augmented reality service process platform.
According to a further aspect of the invention, also propose to set up the interface being connected between business platform and information platform, comprising:
Information platform interface unit, is arranged on business platform, for being connected communication with each information platform, according to interface protocol, to information platform, sends request parameter and obtains the content information of feedback, and described request parameter comprises positional information and characteristics of image;
Interface unit, is arranged on information platform, has link address, for be connected communication with business platform, obtains the content information of required parameter feedback and described request parameter matching.
The present invention can be according to interface parameters, such as position longitude and latitude, pick-up lens direction, characteristics of image etc. obtain content information, search by multiparameter is screened, from information platform, obtain content information, improve the accuracy of acquisition of information, realize and mating and stack with the accurate of reality scene, the interactive experience of optimizing user, can support more application such as picture search, the application examples of support provides after the information access, plant identification of personal space as provided after people's face search information of vehicles and the information such as preferential is provided after plant information, vehicle identification.In these application, business platform carries out preliminary identification and result presentation, and information platform obtains after demand according to interface, carries out professional identification and the information of coupling is provided.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Accompanying drawing explanation
Fig. 1 is the structural representation of system of the present invention, and wherein image analyzing unit is arranged on terminal;
Fig. 2 is the structural representation of system of the present invention, and wherein image analyzing unit is arranged on business platform;
Fig. 3 is the structural representation of system of the present invention, and wherein image analyzing unit is arranged on business platform and information platform;
Fig. 4 is the process flow diagram of the inventive method.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.
As described in Figure 1, the structural representation for system of the present invention, comprising: augmented reality service process platform 1 and information platform 2.
Again as shown in Figure 1, augmented reality service process platform 1 comprises position acquisition unit 11, direction acquiring unit 12, image acquisition unit 13, image analyzing unit 14, control module 15, information platform administrative unit 16 and information platform interface unit 17.Wherein, because image information and positional information are must parameter, other are optional parameter, so direction acquiring unit 12 is selectable units, are the unit increasing for obtaining better effect.Below the unit being arranged in augmented reality service process platform 1 is elaborated:
Position acquisition unit 11, for obtaining the positional information of Location, send positional information to control module, positional information is latitude and longitude information, and position acquisition unit 11 can be satellite (GPS, the Big Dipper) locating module, architecture module or wifi locating module etc.
Direction acquiring unit 12, for obtaining directional information, sends directional information to control module, and directional information is such as the direction of camera indication.Direction acquiring unit 12 can be electronic compass, gyroscope or gravity sensing module etc.The direction of obtaining can be East, West, South, North, the vertical or elevation angle etc.
Image acquisition unit 13, for obtaining image information, sends image information to image analyzing unit 14, and image information, such as being the image that camera photographs, comprises dynamic shooting and static shooting.Preferably, image acquisition unit 13 real-time displays image information on screen also.
Image analyzing unit 14, carries out signature analysis for the image information that image acquisition unit 13 is obtained, and extracts characteristics of image, sends characteristics of image to control module.Described characteristics of image is the information for Description Image, can be shape facility, color characteristic or the textural characteristics etc. of image.As a kind of embodiment, described characteristics of image is to strengthen the captured original image of display business platform, and its form includes but not limited to JPG, BMP, GIP, PNG etc.; As another kind of embodiment, described characteristics of image is to strengthen display business platform according to captured original image, carries out image processing, the image extracting.
Field of image recognition has the algorithm of a lot of extraction characteristics of image at present.Image analyzing unit 14 can be positioned in terminal, as shown in Figure 1; Also can be positioned at network side business platform, as shown in Figure 2; Can also as shown in Figure 3, at business platform and information platform, image analyzing unit be all set.The image analyzing unit of business platform side can be done preliminary analysis, also can not analyze directly and process to information platform.Information platform is done professional graphical analysis, and will with image library combination, as recognition of face, brand recognition, commodity identification etc.
Control module 15 is connected with position acquisition unit 11, direction acquiring unit 12, image acquisition unit 13, image analyzing unit 14 respectively, can connect by communication network, described communication network can be mobile network, such as networks such as CDMA2000, WCDMA, TD-SCDMA, WiFi, carry out the control of operation flow, realize request and the transmission of information.Control module 15 is for characteristics of image and positional information are carried to required parameter, and definite required parameter information platform that will mail to.
Wherein, business platform can be using picture directly as characteristics of image, and picture format can be JPG, BMP, GIF etc.; Business platform also can first analyze some contour features of image, using contour feature as characteristics of image.Preferably, when control module also obtains directional information and/or hunting zone, in required parameter, also carry directional information and/or hunting zone.
Control module 15 determines according to service logic, specifically required parameter is dealt into which or which information platform.
As one embodiment of the present of invention, control module determines that the operation of information platform can be, embodiment 1: control module is presented to user by information platform with tabular form, and user clicks interface, and control module is according to clicking the information platform of determining that user selects.Embodiment 2: control module is determined according to characteristics of image, as identified according to characteristics of image, it is personage's image, search for information platform administrative unit, obtain the information platform link address of carrying out person recognition, determine that required parameter is dealt into corresponding information platform to be processed.
Information platform administrative unit 16 is for the information of overhead platform, comprise information platform information bank, information bank can comprise classification and information platform link address, can also comprise information platform sign etc., and each information platform has a corresponding record in this information bank.
Wherein, according to embodiment, can there is plurality of classes, as Building class, figure kind, commodity class, plant etc.; Information platform sign is used for identifying information platform, can be the title of information platform or the numbering of information platform etc.; The link address of information platform is for connecting information platform, can be IP address, operating system call link address or Web domain name addresses etc.
Information platform interface unit 17 is for being connected communication with each information platform, according to interface protocol, to information platform, sends request parameter and obtains the content information of feedback.Interface protocol is XML agreement, can be also the WebService agreement based on TCP/IP.
As one embodiment of the present invention, augmented reality service process platform 1 can also comprise that fusion represents unit 18, for content information that information platform interface unit 17 is obtained and image information, merge represent, interactive operation, carry out virtually representing with fusion real information.
For example: business platform is issued building information after information platform, information platform returns to the signboard information of businessman, and merge with building the relative position representing, fusion represents the virtual label of unit 18Jiang businessman signboard and the outdoor scene of camera lens merges, and represents to user.
As shown in Figure 2, the structural representation of system of the present invention, wherein image analyzing unit is arranged on business platform.Information platform 2 comprises interface unit 21, linkage unit 22 and content management units 23.Information platform can have one or more.Different information platforms can provide dissimilar information, or the information of zones of different is provided.By augmented reality service process platform 1, according to service needed, determined to send request to one or more information platforms.Wherein:
Interface unit 21 has link address, for being connected communication with augmented reality service process platform 1, obtains required parameter feedback content information.In the present embodiment, required parameter comprises characteristics of image and positional information, can also comprise hunting zone and/or directional information etc., and link address is IP address, and communication protocol is XML agreement.
Linkage unit 22 is connected with interface unit 21, content management units 23 respectively, for obtaining required parameter from interface unit 21, obtains the content information of mating with required parameter from content management units 23, sends content information to interface unit 21.
Content management units 23, for searching the content information of coupling and sending linkage unit 22 to according to required parameter.Embodiment, algorithm are to be determined by each information platform.Described content information can be kept at information platform inside, and content management units 23 is preserved content information, and directly offers linkage unit; Content information also can be kept at outside, and content management units 23 is not preserved content information, when linkage unit 22 will obtain content information, by content management units 23, by network, is connected and is obtained and offer linkage unit 22.Such as the content information of food and beverage enterprise comprises restaurant name, restaurant introduction, ordering number etc.; The content information of tourist attractions comprises sight spot title, sight spot introduction, admission fee information etc.
As shown in Figure 1, below by specific embodiment, describe.
In the present embodiment, to user, provide " holographic window " business, based on technology such as location, augmented reality (AR), image recognitions, utilized the perceptions such as handset image collection, the intelligent mobile internet information of accurate information is provided according to user environment.User passes through augmented reality service process platform, and " " client, during by mobile phone photographed, can see be correlated with introduction or link to holographic window in outdoor scene, and the network information that goes directly, opens one from the window in the on-the-spot outdoor scene interconnection network world.
In the present embodiment, augmented reality service process platform 1 comprises 2 major parts, be that network side is disposed " holographic window " business platform (abbreviation business platform), business platform comprises information platform administrative unit 16, information platform interface unit 17, the several parts of control module 15; Another part is mounted in " holographic window " client in terminal, comprise: position acquisition unit 11, direction acquiring unit 12, image acquisition unit 13 (being mobile phone camera), image analyzing unit 14, also have to merge to represent unit and mobile comm unit.
In this embodiment, " holographic window " business platform has been realized intelligent information application door and the Networking Platform of taking based on mobile phone, by interactive interfacing method of the present invention, defined the enhancement mode AR interactive interfacing agreement between holographic window business platform and information platform.By this business platform polymerizable and the integrated content information such as businessman, scenic spot, commodity, real estate, community, recruitment.Between " holographic window " business platform and information platform, by IP network, be connected.
2 information platforms of take are example, and as shown in Figure 1, wherein, information platform 2-1 is food and drink information platform, and information platform 2-2 is tourist attractions information platforms.In the present embodiment, 2 described information platforms are internet sites that catering information and tourist attractions information are provided respectively.
Information platform 2-1 stores the content association information of food and beverage enterprise, comprises restaurant name, restaurant introduction, ordering number etc., records latitude and longitude information, the spatial positional information of each food and beverage enterprise, picture external appearance characteristic of enterprise, Logo feature etc.
Information platform 2-2 stores the content association information of tourist attractions, comprises sight spot title, sight spot introduction, admission fee information etc., records latitude and longitude information, spatial positional information, scenery feature of each tourist attractions etc.
As shown in Figure 4, for the present invention obtains the method for mobile augmented reality information, by the method, can obtain content information, and further the content information of obtaining is merged and represented, for example: Xu Jiangyige businessman label is superimposed upon one greatly upstairs, increased after floor characteristics of image, information platform can find businessman corresponding to respective storey according to floor characteristics of image, this Business Information is returned to business platform, through business platform, send to terminal; The image spatial feature that terminal can also comprise according to Business Information, is superimposed upon by information point the position that lens image neutralizes this structure matching, thus with outdoor scene exact matching.The method comprises the following steps:
In step 401, augmented reality service process platform is obtained image information, and image information is extracted to characteristics of image.
As an embodiment, can obtain image information by operating in the client camera of mobile phone side.For example mobile phone is facing to Yi Ge building in city, and the image information obtained is the photo in building.Preferably, client call handset port obtains position and the direction parameter of mobile phone, and augmented reality service process platform can also be obtained position, direction and/or the hunting zone of scenery.
In step 402, augmented reality business platform is determined target information platform address, according to target information platform address, connects one or more information platforms.
In the present embodiment, " holographic window " client presents the name list of a plurality of optional target information platforms on interface, for example " 1. food and drink information ", " 2. tourist attractions information ", according to user, click and select to determine target information platform address, if user has clicked " 1. food and drink information ", client is crossed mobile communications network by selection information exchange and is sent network side business platform to, network side business platform has been preserved the address of this information platform, according to information platform sign, can in the database of having preserved, retrieve and determine, it is the address of corresponding information platform 2-1, as IP address " 10.17.48.196 ".
As another embodiment, business platform can also be determined according to characteristics of image, as identified according to characteristics of image, is personage's image, and the information platform link address of carrying out person recognition is obtained in search.
In step 403, augmented reality service process platform is carried at characteristics of image and positional information in required parameter, required parameter is dealt into target information platform and processes.
In the present embodiment, in interface, increased characteristics of image, then characteristics of image is identified and search etc. processed operation, can successively or at business platform end and information platform end, carry out respectively, according to the different numerous embodiments that comprise different from processing mode of characteristics of image.Described characteristics of image comprises the attributes such as the structure, color of image characteristic point.
By the interface between augmented reality service process platform and information platform, for step 403, required parameter is dealt into target information platform, and step 404, information platform is searched for according to required parameter, can also comprise following situation:
While also carrying hunting zone in required parameter, information platform is searched for according to positional information and hunting zone, determines after target zone, then mates according to characteristics of image;
While also carrying directional information in required parameter, information platform is searched for according to positional information and directional information, determines after target zone, then mates according to characteristics of image; Or
While also carrying directional information and hunting zone in required parameter, information platform is searched for according to positional information, directional information and hunting zone, determines after target zone, then mates according to characteristics of image.
In step 404, information platform is searched for according to required parameter, obtains the content information of mating with required parameter, described content information such as content information put title, brief introduction, photo, phone, can executable operations etc., return to augmented reality service process platform.
" holographic window " business platform connects information platform 2-1 corresponding to " 1. food and drink information ", and the image information that client is obtained (building photo), position send to information platform 2-1, and information platform 2-1 processes.In the present embodiment, information platform processing mode is, information platform has been preserved the photo of all commercial buildings, position in city, according to position, first determine several buildings of candidate, building photo is carried out to image characteristics extraction, carry out accordingly Image Feature Matching, accurately determine the target building of aiming at, the Business Information of then title in database Zhong Gai building, each floor being moved into takes out, and Business Information is fed back to " holographic window " business platform by interface.
As embodiment, in feedback information, characteristics of image and the displacement control information of each Business Information Dou Youhe building photo coupling, if businessman " KFC " is at 3rd floors, in feeding back to the Business Information of business platform, comprise and merge while showing the label information of embedded location in picture.
Below " holographic window " business platform and the mutual agreement demonstration of information platform 2-1 in the present embodiment step 403～step 404:
The required parameter that " holographic window " business platform is submitted to information platform 2-1 address (10.17.48.196):
Wherein latitude, longitude are the roughly longitudes and latitudes of target buildings, range is the radius of search, angle is horizontal visual angle, pic_url is the address of picture, PicFeature is the unique point label information in business platform image that image is carried out forming after rough handling, in the present embodiment, described image information is pic_url and PicFeature.
Information platform 2-1 is according in 400 meters of the radius of longitude and latitude and search, in the building information storehouse of information platform, search for, find candidate's buildings, then according to pic_url, obtain building picture, utilize conventional images recognition technology in candidate architecture thing picture, find with pic_url in the building that mates most of picture, as target building, in the time of identification, utilized the unique point mark of PicFeature to accelerate coupling.Determine behind target building, the Business Information of each floor of database Zhong Gai building is taken out, Business Information is fed back to " holographic window " business platform by interface, and feedack is as follows:
Wherein name is the title of businessman, introduction is businessman's brief introduction, pic_url is the label of businessman, latitude and longitude are the actual longitudes and latitudes of businessman, pos ctrl is that businessman's label reality photo and virtual label merge when showing, the label information of embedded location in picture, as be embedded into the 3rd layer of position in building, in the present embodiment this position by with former picture in the bias of unique point identify.
As an embodiment of the method for the present invention, can also comprise step 405, in step 405, the augmented reality service process platform content information that platform provides that obtains information presents on terminal screen.
" holographic window " business platform obtains the Business Information of " KFC " of feeding back in above agreement, in picture and in the correspondence position of pos ctrl mark, embed businessman's label of " KFC ", it is businessman's title, or from pic_url, obtain businessman's mark picture, thereby realize obtaining exactly and merging and represent exactly of on-the-spot outdoor scene and virtual label.
Preferably, in step 404, information platform is also controlled parameter by the displaying of content information and is returned to augmented reality service process platform, shows that controlling parameter can comprise associated characteristics of image and/or side-play amount etc.Correspondingly, in step 405, augmented reality service process platform is controlled parameter in conjunction with the displaying of obtaining, and content information is shown in the place matching with displaying control parameter on screen.
Utilize the present invention, when user carries out augmented reality experience, obtain more environmental parameter as required parameter, comprise positional information and image information, can also comprise directional information and/or hunting zone etc., at information platform, carry out when content information obtains, by required parameter, carrying out the search of multiparameter screens, from information platform, obtain content information, improve the accuracy of acquisition of information, realize and mating and stack with the accurate of reality scene, the interactive experience of optimizing user, can support more application such as picture search.
Claims (6)
1. obtain the system of mobile augmented reality information, comprise augmented reality service process platform and a plurality of information platforms that are connected with described augmented reality service process platform, wherein:
Augmented reality service process platform comprises:
Position acquisition unit, for obtaining the positional information of Location, sends positional information to control module;
Image acquisition unit, for obtaining image information, sends image information to image analyzing unit;
Image analyzing unit, carries out signature analysis for the image information that image acquisition unit is obtained, and extracts characteristics of image, sends characteristics of image to control module, and described characteristics of image is shape facility, color characteristic or the textural characteristics of image;
Control module is connected with position acquisition unit, image acquisition unit, image analyzing unit respectively by communication network, for characteristics of image and positional information are carried to required parameter, and according to characteristics of image search information platform administrative unit, which or which information platform that information platform with Image Feature Matching is defined as to required parameter will mail to, or information platform is presented on to terminal with tabular form, the information platform of having selected is defined as to the information platform that required parameter will mail to;
Information platform administrative unit, for the information of overhead platform, comprises information platform information bank, and each information platform has corresponding record in this information bank;
Information platform interface unit, for being connected communication with each information platform, sends request parameter and obtains the content information of feedback to information platform according to interface protocol, and the content information of described feedback comprises and merges while showing the label information of embedded location in picture;
Merge and represent unit, for the content information getting is superimposed upon to the position that real world images is mated, to merge, represent;
Each information platform comprises:
Interface unit, has link address, for being connected communication with augmented reality service process platform, obtains required parameter feedback content information;
Image analyzing unit, is connected with interface unit, and for obtaining required parameter from interface unit, and graphical analysis is carried out to required parameter in combining image storehouse;
Linkage unit, is connected with image analyzing unit, content management units respectively, for the result from image analyzing unit obtains graphical analysis, from content management units obtain with analyze the result content information of mating, send content information to interface unit;
Content management units, for searching the content information of coupling and send linkage unit to according to request position, image features.
2. obtain according to claim 1 the system of mobile augmented reality information, augmented reality service process platform also comprises:
Direction acquiring unit, for obtaining directional information, sends directional information to control module.
3. obtain according to claim 2 the system of mobile augmented reality information, wherein:
Control module is also carried at directional information and/or hunting zone in required parameter.
4. the method for obtaining mobile augmented reality information, comprises the steps:
Augmented reality service process platform is obtained image information, and image information is extracted to characteristics of image, and described characteristics of image is shape facility, color characteristic or the textural characteristics of image;
Augmented reality service process platform is presented on terminal by information platform with tabular form, when user selects after information platform, the information platform of having selected is defined as to the information platform that will connect; Or augmented reality service process platform is searched for according to characteristics of image, the information platform with Image Feature Matching is defined as to the information platform that will connect, according to information platform address, connect one or more information platforms;
Augmented reality service process platform is carried at characteristics of image and positional information in required parameter, according to characteristics of image, determines required parameter is dealt into which or which information platform;
Graphical analysis is carried out to required parameter in information platform combining image storehouse, according to the result after graphical analysis, search for, obtain with analyze after the result content information of mating, return to augmented reality service process platform, described content information comprises while merge showing the label information of embedded location in picture;
Described augmented reality service process platform is superimposed upon the position of mating in real world images by the content information getting, and to merge, represents.
5. obtain according to claim 4 the method for mobile augmented reality information, required parameter is dealt into information platform, the operation that information platform is searched for according to required parameter, further comprising the steps of:
While also carrying hunting zone in required parameter, information platform is searched for according to positional information and hunting zone, determines after target zone, then mates according to characteristics of image;
While also carrying directional information in required parameter, information platform is searched for according to positional information and directional information, determines after target zone, then mates according to characteristics of image; Or while also carrying directional information and hunting zone in required parameter, information platform is searched for according to positional information, directional information and hunting zone, determines after target zone, then mates according to characteristics of image.
6. set up the interface being connected between business platform and information platform, comprising:
Information platform interface unit, be arranged on business platform, for being connected communication with each information platform, according to interface protocol and characteristics of image, to which or which information platform, send request parameter and obtain the content information of feedback, wherein, the control module being arranged in business platform is presented on terminal by information platform with tabular form, and the information platform of having selected is defined as to the information platform that required parameter will mail to; Or according to the information platform administrative unit in characteristics of image searching service platform, information platform with Image Feature Matching is defined as to the information platform that required parameter will mail to, described request parameter comprises positional information and characteristics of image, described characteristics of image is shape facility, color characteristic or the textural characteristics of image, and the content information of described feedback comprises while merge showing the label information of embedded location in picture;
Interface unit, is arranged on information platform, has link address, for be connected communication with business platform, obtains the content information of required parameter feedback and described request parameter matching.
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