CN105162520A - Automatic identification method and information service system based on visible light illumination - Google Patents
Automatic identification method and information service system based on visible light illumination Download PDFInfo
- Publication number
- CN105162520A CN105162520A CN201510689275.5A CN201510689275A CN105162520A CN 105162520 A CN105162520 A CN 105162520A CN 201510689275 A CN201510689275 A CN 201510689275A CN 105162520 A CN105162520 A CN 105162520A
- Authority
- CN
- China
- Prior art keywords
- identification information
- image
- visible
- information
- light source
- 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.)
- Pending
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The invention discloses an automatic identification method and information service system based on visible light illumination and relates to the technical field of Internet of Things. In the method, identification information is modulated into illumination light; a physical entity is illuminated so that an identifiable object is formed; by using the identifiable object as a photographed object, the illumination light reflected by the identifiable object is acquired in order to obtain an image of the identifiable object; and by demodulating the image, the identification information of the object is acquired, thereby achieving automatic identification. The information service system dynamically sends the identification information to a visible light base station, and provides service content for a terminal by means of a high-speed communication network according to the identification information identified by the receiving terminal. Compared with a method in the prior art, the method achieves identification by directly photographing the identifiable object so as to solve problems that identification efficiency is restricted by the size of a light source, the light source is dazzling, and a photographed object is inconsistent with the identification object. The information service system is combined with other high-speed communication network to provide abundant service content.
Description
Technical field
The present invention relates to technology of Internet of things field, particularly relate to a kind of automatic identifying method based on visible illumination and information service system.
Background technology
Automatic identification realizes the digitized key technology of physical world entity, is the important technology of thing network sensing layer, is the basis connecting physical world and information world.Its fusion calculation machine, optical, electrical, communication and network technology, by target to be identified in advance mark and the later stage of identification information is read, the automatic identification of realize target, and by computer processing system according to identification result complete relevant subsequent treatment.The basic process read comprises emission mark detection source, incentives target and receives pumping signal.Divide according to detection source, common automatic identification technology comprises bar code and the planar bar code technology of REID (RFID) and the employing visible light source adopting radio frequency detection source.RFID technique development rapidly, at decipherment distance, identifies that destination number and ease for use have obvious technical advantage than barcode technology, but needs special fetch equipment.Barcode technology can utilize natural daylight as detection source, adopts imageing sensor to receive pumping signal.Along with the development of mobile communication technology and Portable intelligent terminal, imageing sensor becomes the standard configuration of portable terminal, and popularity rate is very high, and therefore fetch equipment adopts the automatic identification technology of imageing sensor to have larger application advantage.
Along with the development of semiconductor technology, the visible light source based on light-emitting diode (LED) is day by day universal in general illumination.As a kind of semiconductor device, LED has the ability of launching signal of communication.Therefore, in conjunction with coverage imageing sensor all widely and LED, the application development of visible illumination in automatic identification technology field of communication capacity is possessed.Automatic identification technology based on visible illumination both can realize illumination functions, and the mode also by illumination marks article, the Internet of Things application such as forming chamber inner position, photon label.Such technology existing adopts Portable intelligent terminal directly to take lighting source, realizes the acquisition of identification information.There are the following problems at present for this automatic identification technology.First, have requirement to the size of light source hot spot, hot spot is too little, imageing sensor None-identified information wherein; Secondly, the size of light source hot spot also can have influence on the speed of communication, and hot spot is less, and the pixel that imageing sensor can be utilized is fewer, and speed also just reduces relatively, and then extends the time required for identifying; 3rd, light source intensity of illumination is higher, direct photographic light sources, can cause puzzlement such as dazzling dazzling grade to user; 4th, visible light source itself is not probably identified object, and identified to when liking other article, alignment light source shooting, lacks the ease for use of " What You See Is What You Get ".In addition, be limited to the operating frequency of imageing sensor, the service content that only can provide to the communication capacity of Portable intelligent terminal by LED is abundant not enough.
Summary of the invention
The object of the present invention is to provide a kind of automatic identifying method based on visible illumination and information service system, thus solve the foregoing problems existed in prior art.
To achieve these goals, the technical solution used in the present invention is as follows:
Based on an automatic identifying method for visible illumination, comprise the steps:
S1, identification information is modulated in the illumination light that visible light source launches by visible ray base station, and throw light on specific region or article, completes the mark of described identification information to illuminated object, forms identifiable design object;
S2, terminal is taken described identifiable design object, and terminal image transducer obtains the illumination light of described identifiable design object reflection, generates the image comprising light and shade texture, end application demodulates the described identification information in described image, completes the automatic identification to described identifiable design object.
Preferably, in S2, described end application demodulates the described identification information in described image, comprises the steps:
S201, Image semantic classification: remove the noise in described image;
S202, bandpass filtering: the feature that the frequency spectrum of the background of image is narrower according to the Frequency spectrum ratio of light and shade texture, the frequency content outside filtering light and shade texture frequency spectrum, obtains the image that light and shade texture strengthens;
S203, judgement and information identification: set decision threshold, adjudicate according to the light and shade texture of described decision threshold to the image of described enhancing, obtain described identification information, realize the automatic identification to described identifiable design object.
Further, also step is comprised: background extracting and background removal between S201 and S202, image processing techniques is utilized to coordinate the modulation system of visible ray base station, extract the background irrelevant with light and shade texture of described image, and from described image, deduct the background of extraction, strengthen the light and shade texture of described image.
Preferably, described identification information comprises guiding byte, origin identification byte, information byte and end identification byte.
Preferably, in S1, described and be modulated at by described identification information in the illumination light that visible light source launches, the mode of described modulation is: represent different information by different luminous intensities.
Preferably, described visible light source be LED or other possess the visible light source of communication modulation ability.
Preferably, in S2, the Exposure mode that described shooting adopts is Rolling shutter.
Based on the information service system that visible illumination identifies automatically, comprising: visible ray base station, Portable intelligent terminal and server, described visible ray base station is connected with described server communication respectively with described Portable intelligent terminal;
The identification information that described visible ray base station sends for receiving described server, and described identification information is modulated in the illumination light that visible light source launches, throw light on specific region or article, completes the mark of identification information to illuminated object, forms identifiable design object;
Described Portable intelligent terminal is used for taking described identifiable design object, terminal image transducer obtains the illumination light of identifiable design object reflection, generate the image of described identifiable design object, end application demodulates the described identification information in described image, complete the automatic identification to described identifiable design object, also for the described identification information demodulated is sent to described server, and receive the service content relevant to described identification information of described server transmission, also for by described service content, be supplied to user;
Described server is used for sending described identification information to described visible ray base station, also for receiving the described identification information demodulated that described Portable intelligent terminal sends, also for the service content relevant to described identification information is sent to described Portable intelligent terminal.
Preferably, described visible ray base station comprises visible light source and base station module, and described base station module comprises main control module, communication module, memory module, power module, visible light source driver module and visible light source; Described main control module is connected with described communication module, memory module, power module and described visible light source driver module respectively; Described visible light source driver module is connected with described visible light source, for being modulated in the illumination light of described visible light source by the described identification information stored in described memory module.
Preferably, described intelligent terminal comprises camera, process chip, display screen, loud speaker and communication module; Described camera, display screen, loud speaker and communication module are connected with described process chip respectively, and described camera is used for taking described identifiable design object, obtains photographic images; Described process chip is used for carrying out demodulation to described photographic images, obtains described identification information; Described display screen is used for the information on services relevant to described identification information according to display; Described loud speaker is for playing the information on services relevant to described identification information; Described communication module is used for the communication between described process chip and described server.
The invention has the beneficial effects as follows: embodiments provide a kind of automatic identifying method based on visible illumination and information service system.In the method, by identification information is modulated in illumination light, by illumination physical entity, form identifiable design object, then pass through identifiable design object as reference object, obtain the illumination light of identifiable design object reflection, obtain the image of identifiable design object, image both can be picture also can be video, by demodulation image, obtain the identification information of object, realize automatically identifying.Identification information is dynamically sent to visible ray base station by information service system, and according to the identification information that the terminal recognition received goes out, by high-speed communicating network to Terminal for service content.Compared with prior art, technical scheme provided by the invention, utilizes the mode tagged object of illumination, and the identification information of identifiable design object can change with the communication dynamics between visible ray base station and server; Utilize the imageing sensor identification identifiable design object of Portable intelligent terminal standard configuration, there is high popularization and ease for use; Realize identifying by the mode of directly taking identifiable design object, solve the recognition efficiency that prior art exists and be limited to light source size, light source dazzling reduction Consumer's Experience and photographic subjects and the inconsistent problem of identification target; Be combined with other high-speed communicating networks, abundanter service content can be provided.
Accompanying drawing explanation
Fig. 1 is the automatic identifying method schematic flow sheet based on visible illumination that the embodiment of the present invention provides;
Fig. 2 is the information service system structural representation automatically identified based on visible illumination that the embodiment of the present invention provides;
Fig. 3 is the structural representation of visible ray base station;
Fig. 4 is the structural representation of intelligent terminal;
Fig. 5 is the course of work schematic diagram of end application;
Fig. 6 is the course of work schematic diagram of image decoder module;
Fig. 7 is the information service system structural representation of visible ray Base Transmitter with station location marker information;
Fig. 8 is the information service system structural representation of visible ray Base Transmitter with article identification information;
Fig. 9 is the information service system structural representation utilizing terminal local service content to provide information service;
Figure 10 is the photographic images schematic diagram of illuminated object;
Figure 11 is a kind of method schematic diagram utilizing bandpass filtering to process the image that shooting obtains;
Figure 12 is that another kind utilizes bandpass filtering to the method schematic diagram taken the image that obtains and process;
Figure 13 is a kind of method schematic diagram being eliminated enhancing light and shade striped by background extracting and background;
Figure 14 is the another kind of method schematic diagram being eliminated enhancing light and shade striped by background extracting and background.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As shown in Figure 1, embodiments provide a kind of automatic identifying method based on visible illumination, comprise the steps:
S1, identification information is modulated in the illumination light that visible light source launches by visible ray base station, and throw light on specific region or article, completes the mark of described identification information to illuminated object, forms identifiable design object;
S2, terminal is taken described identifiable design object, and terminal image transducer obtains the illumination light of described identifiable design object reflection, generates the image comprising light and shade texture, end application demodulates the described identification information in described image, completes the automatic identification to described identifiable design object.
In said method, utilize the mode tagged items of illumination, in addition, the identifiable design object be labeled all can automatically can be identified in section at any time in order to follow-up, the local identification information stored is read in visible ray base station, circulates and this identification information is modulated to the illumination light of transmitting, and then constantly circulates when throwing light on transmission identification information in described visible ray base station, Portable intelligent terminal can be made from arbitrary transmission cycle to extract identification information, thus automatically identify object.
Wherein, visible ray Base Transmitter, with the illumination light of identification information, marks illuminated object in the mode of throwing light on, and this object is become identifiable design object.After obtaining identifiable design object, in the embodiment of the present invention, using identifiable design object as reference object, utilize the Portable intelligent terminal shooting identifiable design object of band camera, its imageing sensor receives the illumination light of identifiable design object reflection, obtain the image comprising light and shade texture, image both can be picture also can be video.And then utilize the application program demodulation image of Portable intelligent terminal, obtain identification information, complete the automatic identification to identifiable design object.
In said method, using identifiable design object as reference object, by obtaining the illumination light of identifiable design object reflection, obtaining image, and then completing identification.With prior art, using visible light source as reference object, by obtaining the direct light of visible light source, complete knowledge method for distinguishing to compare, method in the present invention expands the area of reference object, improve the pixel that imageing sensor can be utilized, and then improve speed, shorten the time required for identification.Meanwhile, need target be identified because reference object is, therefore, there is the effect of What You See Is What You Get, improve the Experience Degree of user, it also avoid the dazzling problem that in prior art, direct photographic light sources brings.
In the embodiment of the present invention, in S2, described in demodulate described identification information in described image, comprise the steps:
S201, Image semantic classification: remove the noise in described image;
S202, bandpass filtering: the feature that the frequency spectrum of the background of image is narrower according to the Frequency spectrum ratio of light and shade texture, the frequency content outside filtering light and shade texture frequency spectrum, obtains the image that light and shade texture strengthens;
S203, judgement and information identification: set decision threshold, adjudicate according to the light and shade texture of described decision threshold to the image of described enhancing, obtain described identification information, realize the automatic identification to described identifiable design object.
Compared with directly taking such automatic identification technology of visible light source, take illumination light signal that illuminated object gathers because degree of divergence is high intensity more weak, the texture of illuminated object is also more complicated than the texture of visible light source, adds the difficulty of judgement and identifying information.By image processing techniquess such as bandpass filterings, can Background suppression, strengthen light and shade texture, be conducive to judgement and identifying information.
In a preferred embodiment of the invention, also step is comprised: background extracting and background removal between S201 and S202, image processing techniques is utilized to coordinate the modulation system of visible ray base station, extract the background irrelevant with light and shade texture of described image, and from described image, deduct the background of extraction, strengthen the light and shade texture of described image.After this step, then carry out bandpass filtering, the ability of judgement precision and identifying information can be improved further.
In the embodiment of the present invention, described identification information comprises guiding byte, origin identification byte, information byte and end identification byte.
Wherein, guide word saves the estimation in messaging parameter.Because visible ray base station is constantly cycled to repeat transmission information when throwing light on, needing origin identification byte and terminating identification byte for defining information byte.
In the preferred embodiment of the present invention, in S1, described and be modulated at by described identification information in the illumination light that visible light source launches, the mode of described modulation is: represent different information by different luminous intensities.
In the embodiment of the present invention, described visible light source can be LED, or other possess the visible light source of communication modulation ability.Compared with conventional lighting technology, LED, providing outside green energy conservation illumination, can also respond the Rapid Variable Design of drive singal, possesses the ability that implementation information modulation loads.
In the embodiment of the present invention, in S2, the Exposure mode that described shooting adopts can be Rolling shutter.
In shooting process, adopt the Exposure mode of Rolling shutter, take illuminated object, generate the image of this object; Because Rolling shutter is at the diverse location of different Time Exposure camera image transducers, and the illumination intensity of illumination of different time visible ray Base Transmitter is different, so in the image of shooting, form corresponding light and shade change texture according to loaded identification information.
Embodiment two
As shown in Figure 2, embodiments provide a kind of information service system automatically identified based on visible illumination, comprise: visible ray base station, Portable intelligent terminal and server, described visible ray base station is connected with described server communication respectively with described Portable intelligent terminal;
The identification information that described visible ray base station sends for receiving described server, and described identification information is modulated in the illumination light that visible light source launches, throw light on specific region or article, completes the mark of identification information to illuminated object, forms identifiable design object;
Described Portable intelligent terminal is used for taking described identifiable design object, terminal image transducer obtains the illumination light of identifiable design object reflection, generate described identifiable design object images, end application demodulates the described identification information in described image, complete the automatic identification to described identifiable design object, also for the described identification information demodulated is sent to described server, and receive the service content relevant to described identification information of described server transmission, also for by described service content, be supplied to user;
Described server is used for sending described identification information to described visible ray base station, also for receiving the described identification information demodulated that described Portable intelligent terminal sends, also for the service content relevant to described identification information is sent to described Portable intelligent terminal.
The information service system automatically identified based on visible illumination that the present embodiment provides, the course of work of the automatic identification based on visible illumination wherein related to, as described in embodiment one, does not repeat them here.
Wherein, the identification information that described visible ray base station sends for receiving described server, is specially: the identification information that visible ray base station is sent by communication system reception server, and is stored in this locality.Wherein, communication system can be that WLAN (wireless local area network) WiFi, wired network are as Ethernet and electric line communication system etc.
In the embodiment of the present invention, the service content relevant to described identification information that described Portable intelligent terminal sends for receiving described server, also for by described service content, be supplied to user, be specially, the application program of terminal directly provides local service content according to the identification information of described identification to user, or after obtaining the service content relevant to the identification information of described identification by wireless communication system to server request according to the identification information of described identification, then provide to user.
Wherein, wireless communication system can be WLAN (wireless local area network) WiFi, mobile communications network 3G, LTE etc.Server, according to the identification information received, sends service content to Portable intelligent terminal.The service content that the application program of Portable intelligent terminal provides local service content or server to send over according to the function of information service to user.
As shown in Figure 3, in the embodiment of the present invention, described visible ray base station comprises visible light source and base station module, and described base station module comprises main control module, communication module, memory module, power module, visible light source driver module and visible light source; Described main control module is connected with described communication module, memory module, power module and described visible light source driver module respectively; Described visible light source driver module is connected with described visible light source, for being modulated in the illumination light of described visible light source by the described identification information stored in described memory module.
Described communication module has the function of radio communication or wire communication, for the information that reception server sends; Described memory module is used for the information that storing communication module receives; Described power module is used for extraneous Power convert each voltage levvl needed for base station module, and is supplied to corresponding demand module; Described visible light source driver module is connected with visible light source, for by the modulates information in memory module in the drive singal of visible light source, visible light source launches the visible ray of varying strength according to the change of drive singal.The mode of modulation is represent different information by different luminous intensities.
As shown in Figure 4, in the embodiment of the present invention, described intelligent terminal comprises camera, process chip, display screen, loud speaker and communication module; Described camera, display screen, loud speaker and communication module are connected with described process chip respectively, and described camera is used for taking described identifiable design object, obtains photographic images; Described process chip is used for carrying out demodulation to described photographic images, obtains described identification information; Described display screen is for showing the service content relevant to described identification information; Described loud speaker is for playing the service content relevant to described identification information; Described communication module is used for the communication between described process chip and described server.
Wherein, described process chip can arrange application program, and application program comprises image decoder module and message processing module, and as shown in Figure 5, wherein image decoder module by the demodulates information in image out, passes to message processing module to its course of work.
Described image decoder module can comprise Image semantic classification, bandpass filtering, background extracting, background removal and judgement and information identification module; Described image pre-processing module is for removing the noise in image; The feature that described bandpass filtering modules block is narrower according to the frequency spectrum of the background of the Frequency spectrum ratio image of light and shade texture, the frequency content outside filtering light and shade texture frequency spectrum, strengthens light and shade texture; Described background extracting module, utilizes image processing techniques to coordinate the specific modulation mode of visible ray base station, extracts the background irrelevant with light and shade texture of image; Described background removal module, deducts the background of extraction from image, strengthens light and shade texture; Described judgement and information identification module are adjudicated according to the light and shade texture of decision threshold to the image after strengthening, and obtain the code word of 1 and 0, obtain identification information.The course of work of image decoder module as shown in Figure 6.
Wherein, in the process that reality is implemented, also after Image semantic classification, directly can carry out bandpass filtering, after bandpass filtering treatment, the image that also can be enhanced, for judgement and information identification; And if after background extracting and background removal step, then carry out bandpass filtering, light and shade texture image more clearly can be obtained, thus advantageously in judgement and information identification.
Embodiment three
As shown in Figure 7, in the embodiment of the present invention, visible ray Base Transmitter is with the illumination light of station location marker information, and specific region of throwing light on, completes the mark of identification information to illuminated position, forms identifiable design position.Portable intelligent terminal is by camera shooting identifiable design position, and the illumination light of this regional reflex enters the imageing sensor of camera, generates the image of this position, and image both can be picture also can be video.Terminal, by application program demodulation image, obtains station location marker information, and sends the station location marker information of acquisition to server by wireless communication system.Server, according to the station location marker information received, returns the service content sending and associate with position to terminal.Terminal, based on this content, can provide the information services such as indoor positioning navigation, location-based information pushing to user.
Embodiment four
As shown in Figure 8, in the embodiment of the present invention, visible ray Base Transmitter is with the illumination light of article identification information, and throw light on specific article, completes the mark of identification information to illuminated article, forms identifiable design article.Portable intelligent terminal is by camera shooting identifiable design article, and the illumination light of these article reflection enters the imageing sensor of camera, and generate the image of these article, image both can be picture also can be video.Terminal, by application program demodulation image, obtains article identification information, and sends the article identification information of acquisition to server by wireless communication system.Server, according to the object identification information received, returns the service content sent with item associations to terminal.Terminal, based on this content, can provide asset management, article guide to visitors etc. towards the information service of article to user.
Embodiment five
As shown in Figure 9, in the embodiment of the present invention, visible ray Base Transmitter is with the illumination light of identification information, and throw light on specific region or article, completes the mark of identification information to illuminated object, forms identifiable design object.Portable intelligent terminal is by camera shooting identifiable design object, and the illumination light of this object reflection enters the imageing sensor of camera, generates the image of this object, and image both can be picture also can be video.Terminal, by application program demodulation image, obtains identification information.Terminal utilizes the service content associated with identification information of terminal local, can provide the information service such as short message broadcasting, the navigation of off-line map indoor positioning to user.
Embodiment six
Embodiments provide one and utilize said method and system, by Portable intelligent terminal shooting identifiable design object, obtain the image of described identifiable design object, as shown in Figure 10, wherein, figure a takes to the not identifiable design object without identification information the image obtained, and figure b takes to the identifiable design object with identification information the image obtained; As can be seen from the figure, if load-modulate identification information in illumination light, then, in the image of shooting, will comprise a kind of light and dark texture, light and shade represents the code word of 1 and 0 respectively.And because the regularity of light and shade texture variations is stronger than complex background, after spatial domain to frequency domain transformation, the image frequency components associated with light and shade texture concentrates on a narrower frequency field, so, light and shade texture can be strengthened by filtering.Light and shade varying component, in the position of frequency domain region, is determined by the fundamental frequency of visible ray base station modulates visible light source.
Embodiment seven
Embodiments provide a kind of method utilizing bandpass filtering to process the image that shooting obtains, as shown in figure 11, the image wherein inputted is two-dimensional matrix, through two-dimensional Fourier transform, image is transformed from a spatial domain to frequency domain and obtains 2-d spectrum, light and shade texture is corresponding two peak regions about origin symmetry on frequency spectrum.Namely filtering remain peak point and neighbouring frequency content thereof, and the frequency content in other regions is set to 0.Filtered 2-d spectrum, through two-dimentional inversefouriertransform, obtains the output image that light and shade texture is enhanced.After described peak point and neighbouring scope thereof can complete according to actual system design, measurement frequency spectrum obtains.
Embodiment eight
Embodiments provide the method that another kind utilizes bandpass filtering to process the image that shooting obtains, as shown in figure 12, the image wherein inputted is transformed to one dimensional image vector according to each row of image array is end to end, through one-dimensional Fourier transform, obtain one-dimensional spectrum, light and shade texture on frequency spectrum to corresponding positive and negative two peak regions.Namely filtering stay peak point and neighbouring frequency content thereof, and the frequency content in other regions is set to 0.Filtered one-dimensional spectrum obtains one dimensional image vector through one dimension inversefouriertransform, then is image array according to the ranks parameter transformation of image array, obtains the output image that light and shade texture is enhanced.After described peak point and neighbouring scope thereof can complete according to actual system design, measurement frequency spectrum obtains.
Light and shade texture is the foreground content of image.For strengthening foreground content, in the image processing arts, realize by background extracting and background elimination.The information sent because of visible ray base station can flexible design, and background extracting of the present invention and background technology for eliminating can be more convenient.
Embodiment nine
Embodiments provide a kind of method being strengthened light and shade texture by background extracting and background elimination, as shown in figure 13, wherein, figure a is depicted as the visible light source drive singal of design, in continuous two periods, first period drive singal remains unchanged, second period drive singal load information; Drive signal change transfers illumination light change to subsequently, and illumination light is received by imageing sensor and forms image; Figure b is depicted as the two continuous frames image that imageing sensor obtains, and the first frame is complete background image, and the second frame is the image comprising light and shade texture, deducts the first two field picture from the second two field picture, can obtain the image that light and shade texture strengthens, as shown in figure c.
Embodiment ten
Embodiments provide the another kind of method being strengthened light and shade texture by background extracting and background elimination, as shown in figure 14, wherein, figure a is depicted as the visible light source drive singal of design, in continuous two periods, first period drive singal load information, the complement code of second period drive singal load information; Drive signal change transfers illumination light change to subsequently, and illumination light is received by imageing sensor and forms image; Figure b is depicted as the two continuous frames image that imageing sensor obtains, first frame is the light and shade texture comprising information, second frame comprises the light and shade texture of information complement code, two frames are added and obtain complete background image, difference subtracting background image from the first frame and the second frame, information and the information complement code of the expression of light and shade texture can be obtained, as shown in figure c.Obtain information and information complement code simultaneously, can verify that whether the information obtained is correct.Two described frames are added the intensity of brightness referring to the pixel comparing the corresponding same position of two frames, get higher value.
By above embodiment, can find, the present invention utilizes visible light source to the illumination of physical entity, achieve the mark to physical entity, form identifiable design object, and utilize extensively universal Portable intelligent terminal shooting identifiable design object, receive by the illumination light of this object reflection, realize the automatic identification to identifiable design object.Shooting identifiable design object can improve the utilization ratio of imageing sensor than shooting visible light source, pass through image processing techniques, automatic recognition capability can be strengthened, the Internet of Things application such as indoor positioning navigation, museum exhibits guide to visitors, article photon label can be widely used in.
By adopting technique scheme disclosed by the invention, obtain effect useful as follows: embodiments provide a kind of automatic identifying method based on visible illumination and information service system.In the method, by identification information is modulated in illumination light, by illumination physical entity, form identifiable design object, then pass through identifiable design object as reference object, obtain the reverberation of identifiable design object, obtain the image of identifiable design object, image both can be picture also can be video, by demodulation image, obtain the identification information of object, realize automatically identifying.Identification information is dynamically sent to visible ray base station by information service system, and according to the identification information that the terminal recognition received goes out, by high-speed communicating network to Terminal for service content.Compared with prior art, technical scheme provided by the invention, utilizes the mode tagged object of illumination, and the identification information of identifiable design object can change with the communication dynamics between visible ray base station and server; Utilize the imageing sensor identification identifiable design object of Portable intelligent terminal standard configuration, there is high popularization and ease for use; Realize identifying by the mode of directly taking identifiable design object, solve the recognition efficiency that prior art exists and be limited to light source size, light source dazzling reduction Consumer's Experience and photographic subjects and the inconsistent problem of identification target; Be combined with other high-speed communicating networks, abundanter service content can be provided.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Those skilled in the art it should be understood that the sequential of the method step that above-described embodiment provides can carry out accommodation according to actual conditions, also can carry out according to actual conditions are concurrent.
The hardware that all or part of step in the method that above-described embodiment relates to can carry out instruction relevant by program has come, described program can be stored in the storage medium that computer equipment can read, for performing all or part of step described in the various embodiments described above method.Described computer equipment, such as: personal computer, server, the network equipment, intelligent mobile terminal, intelligent home device, wearable intelligent equipment, vehicle intelligent equipment etc.; Described storage medium, such as: the storage of RAM, ROM, magnetic disc, tape, CD, flash memory, USB flash disk, portable hard drive, storage card, memory stick, the webserver, network cloud storage etc.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, commodity or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, commodity or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment comprising described key element and also there is other identical element.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (10)
1. based on an automatic identifying method for visible illumination, it is characterized in that, comprise the steps:
S1, identification information is modulated in the illumination light that visible light source launches by visible ray base station, and throw light on specific region or article, completes the mark of described identification information to illuminated object, forms identifiable design object;
S2, terminal is taken described identifiable design object, and terminal image transducer obtains the illumination light of described identifiable design object reflection, generates the image comprising light and shade texture, end application demodulates the described identification information in described image, completes the automatic identification to described identifiable design object.
2. the automatic identifying method based on visible illumination according to claim 1, is characterized in that, in S2, described end application demodulates the described identification information in described image, comprises the steps:
S201, Image semantic classification: remove the noise in described image;
S202, bandpass filtering: the feature that the frequency spectrum of the background of image is narrower according to the Frequency spectrum ratio of light and shade texture, the frequency content outside filtering light and shade texture frequency spectrum, obtains the image that light and shade texture strengthens;
S203, judgement and information identification: set decision threshold, adjudicate according to the light and shade texture of described decision threshold to the image of described enhancing, obtain described identification information, realize the automatic identification to described identifiable design object.
3. the automatic identifying method based on visible illumination according to claim 2, it is characterized in that, also step is comprised: background extracting and background removal between S201 and S202, image processing techniques is utilized to coordinate the modulation system of visible ray base station, extract the background irrelevant with light and shade texture of described image, and from described image, deduct the background of extraction, strengthen the light and shade texture of described image.
4. the automatic identifying method based on visible illumination according to claim 1, is characterized in that, described identification information comprises guiding byte, origin identification byte, information byte and end identification byte.
5. the automatic identifying method based on visible illumination according to claim 1, it is characterized in that, in S1, to be describedly modulated at by described identification information in the illumination light that visible light source launches, the mode of described modulation is: represent different information by different luminous intensities.
6. the automatic identifying method based on visible illumination according to claim 1, is characterized in that, described visible light source be LED or other possess the visible light source of communication modulation ability.
7. the automatic identifying method based on visible illumination according to claim 1, is characterized in that, in S2, the Exposure mode that described shooting adopts is Rolling shutter.
8. based on the information service system that visible illumination identifies automatically, it is characterized in that, comprising: visible ray base station, Portable intelligent terminal and server, described visible ray base station is connected with described server communication respectively with described Portable intelligent terminal;
The identification information that described visible ray base station sends for receiving described server, and described identification information is modulated in the illumination light that visible light source launches, throw light on specific region or article, completes the mark of identification information to illuminated object, forms identifiable design object;
Described Portable intelligent terminal is used for taking described identifiable design object, terminal image transducer obtains the illumination light of identifiable design object reflection, generate the image of described identifiable design object, end application demodulates the described identification information in described image, complete the automatic identification to described identifiable design object, also for the described identification information demodulated is sent to described server, and receive the service content relevant to described identification information of described server transmission, also for by described service content, be supplied to user;
Described server is used for sending described identification information to described visible ray base station, also for receiving the described identification information demodulated that described Portable intelligent terminal sends, also for the service content relevant to described identification information is sent to described Portable intelligent terminal.
9. the information service system automatically identified based on visible illumination according to claim 8, it is characterized in that, described visible ray base station comprises visible light source and base station module, and described base station module comprises main control module, communication module, memory module, power module, visible light source driver module and visible light source; Described main control module is connected with described communication module, memory module, power module and described visible light source driver module respectively; Described visible light source driver module is connected with described visible light source, for being modulated in the illumination light of described visible light source by the described identification information stored in described memory module.
10. the information service system automatically identified based on visible illumination according to claim 8, is characterized in that, described intelligent terminal comprises camera, process chip, display screen, loud speaker and communication module; Described camera, display screen, loud speaker and communication module are connected with described process chip respectively, and described camera is used for taking described identifiable design object, obtains photographic images; Described process chip is used for carrying out demodulation to described photographic images, obtains described identification information; Described display screen is used for the information on services relevant to described identification information according to display; Described loud speaker is for playing the information on services relevant to described identification information; Described communication module is used for the communication between described process chip and described server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510689275.5A CN105162520A (en) | 2015-10-21 | 2015-10-21 | Automatic identification method and information service system based on visible light illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510689275.5A CN105162520A (en) | 2015-10-21 | 2015-10-21 | Automatic identification method and information service system based on visible light illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105162520A true CN105162520A (en) | 2015-12-16 |
Family
ID=54803293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510689275.5A Pending CN105162520A (en) | 2015-10-21 | 2015-10-21 | Automatic identification method and information service system based on visible light illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105162520A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701475A (en) * | 2016-02-02 | 2016-06-22 | 嘿灯（深圳）智能科技有限公司 | Reality augmenting method, device and system based on optical carrier wave marks |
| CN106446749A (en) * | 2016-08-30 | 2017-02-22 | 西安小光子网络科技有限公司 | Optical label shooting and optical label decoding relay work method |
| CN106788731A (en) * | 2017-03-17 | 2017-05-31 | 维沃移动通信有限公司 | Data transmission method and mobile terminal |
| CN107680132A (en) * | 2016-08-02 | 2018-02-09 | 重庆富沛和科技有限公司 | The target identification system and its control method of illuminated beacon based on awakening mode |
| JP2019029695A (en) * | 2017-07-25 | 2019-02-21 | 富士通株式会社 | Discrimination computer program, discrimination device and discrimination method and communication system |
| CN109586792A (en) * | 2018-12-28 | 2019-04-05 | 武汉职业技术学院 | A kind of indoor guide system based on LED light device |
| CN110531318A (en) * | 2019-09-03 | 2019-12-03 | 北京理工大学 | A method of luminescence unit ID is extended for visual light imaging indoor positioning |
| CN111784893A (en) * | 2019-04-03 | 2020-10-16 | 阿里巴巴集团控股有限公司 | Information identification method, system, device and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8334898B1 (en) * | 2011-07-26 | 2012-12-18 | ByteLight, Inc. | Method and system for configuring an imaging device for the reception of digital pulse recognition information |
| CN103383446A (en) * | 2013-04-09 | 2013-11-06 | 北京半导体照明科技促进中心 | Indoor positioning method, device and system based on visible light and light source |
| CN104639242A (en) * | 2014-12-30 | 2015-05-20 | 深圳华智测控技术有限公司 | Streetlight lamp mark acquisition system and method |
| CN104904319A (en) * | 2013-01-11 | 2015-09-09 | 皇家飞利浦有限公司 | Enabling a user to control coded light sources |
-
2015
- 2015-10-21 CN CN201510689275.5A patent/CN105162520A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8334898B1 (en) * | 2011-07-26 | 2012-12-18 | ByteLight, Inc. | Method and system for configuring an imaging device for the reception of digital pulse recognition information |
| CN104904319A (en) * | 2013-01-11 | 2015-09-09 | 皇家飞利浦有限公司 | Enabling a user to control coded light sources |
| CN103383446A (en) * | 2013-04-09 | 2013-11-06 | 北京半导体照明科技促进中心 | Indoor positioning method, device and system based on visible light and light source |
| CN104639242A (en) * | 2014-12-30 | 2015-05-20 | 深圳华智测控技术有限公司 | Streetlight lamp mark acquisition system and method |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701475A (en) * | 2016-02-02 | 2016-06-22 | 嘿灯（深圳）智能科技有限公司 | Reality augmenting method, device and system based on optical carrier wave marks |
| CN107680132A (en) * | 2016-08-02 | 2018-02-09 | 重庆富沛和科技有限公司 | The target identification system and its control method of illuminated beacon based on awakening mode |
| CN106446749A (en) * | 2016-08-30 | 2017-02-22 | 西安小光子网络科技有限公司 | Optical label shooting and optical label decoding relay work method |
| CN106446749B (en) * | 2016-08-30 | 2019-08-13 | 西安小光子网络科技有限公司 | A kind of shooting of optical label and optical label decode relay working method |
| CN106788731A (en) * | 2017-03-17 | 2017-05-31 | 维沃移动通信有限公司 | Data transmission method and mobile terminal |
| CN106788731B (en) * | 2017-03-17 | 2019-03-01 | 维沃移动通信有限公司 | Data transmission method and mobile terminal |
| JP2019029695A (en) * | 2017-07-25 | 2019-02-21 | 富士通株式会社 | Discrimination computer program, discrimination device and discrimination method and communication system |
| CN109586792A (en) * | 2018-12-28 | 2019-04-05 | 武汉职业技术学院 | A kind of indoor guide system based on LED light device |
| CN111784893A (en) * | 2019-04-03 | 2020-10-16 | 阿里巴巴集团控股有限公司 | Information identification method, system, device and storage medium |
| CN110531318A (en) * | 2019-09-03 | 2019-12-03 | 北京理工大学 | A method of luminescence unit ID is extended for visual light imaging indoor positioning |
| CN110531318B (en) * | 2019-09-03 | 2021-04-30 | 北京理工大学 | Method for indoor positioning extension of light-emitting unit ID (identity) in visible light imaging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105162520A (en) | Automatic identification method and information service system based on visible light illumination | |
| CN110261823B (en) | Visible light indoor communication positioning method and system based on single LED lamp | |
| CN106537816B (en) | Derive method, equipment and the computer-readable medium of identifier in visible light signal | |
| TWI620129B (en) | Light tag based information interaction system and method | |
| CN103795467B (en) | Method and apparatus for identifying visible light communication signal received by camera | |
| US7415212B2 (en) | Data communication system, data transmitter and data receiver | |
| CN207650852U (en) | Intelligent sorting system based on augmented reality intelligent glasses | |
| CN105871461A (en) | Multiple access method based on optical two-dimensional code and visible light communication system for implementing multiple access method | |
| CN101834986A (en) | Imaging device, mobile body detecting method, mobile body detecting circuit and program | |
| Kim et al. | Edge-network-assisted real-time object detection framework for autonomous driving | |
| CN108288289A (en) | A kind of LED visible detection methods and its system for visible light-seeking | |
| CN105716614A (en) | Visible light communication based indoor positioning and navigation method and device for mobile intelligent terminal | |
| CN107222258A (en) | A kind of data capture method, data transmission method for uplink, device and data transmission system | |
| KR20160040222A (en) | Method and apparatus for receiving visible light signal | |
| CN207503240U (en) | A kind of bar code code reader of the novel long depth of field | |
| CN106932770A (en) | A kind of indoor locating system and method based on LED | |
| CN108833013A (en) | A kind of visible optical transceiving method and system | |
| CN106464860B (en) | Storage of the depth information in digital image file | |
| CN116630354B (en) | Video matting method, electronic device, storage medium and program product | |
| CN116524195B (en) | Semantic segmentation method, semantic segmentation device, electronic equipment and storage medium | |
| CN205621067U (en) | Shopping guide system based on zigbee communication and visible light communication | |
| Aswin et al. | Indoor localization using visible light communication and image processing | |
| CN109842791B (en) | Image processing method and device | |
| WO2019165870A1 (en) | Method, apparatus, and device for recognizing bar code | |
| CN104901739A (en) | Multilingual audio commentary device and method thereof based on visible light communication technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |
|
| RJ01 | Rejection of invention patent application after publication |