CN101394604B - Recognizing method and system for multimedia message - Google Patents
Recognizing method and system for multimedia message Download PDFInfo
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Abstract
The invention provides an identification method of a multimedia message and a system. The identification method comprises the following steps: the multimedia message to be identified is received, and the characteristic information of the multimedia message to be identified on all media classes is extracted to respectively generate characteristic information vectors corresponding to each media class; whether the difference value between the characteristic information vector of at least one media class in the multimedia message to be identified and the characteristic information vector of the corresponding media class in a designated multimedia message is in the preset deviation range; and if the difference value is in the preset deviation range, the multimedia message to be identified is determined to be the designated multimedia message. The identification method and the system can expand the user scale and the multimedia message transmission amount in a large-scale manner.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the recognition methods and the system of the Multimedia Message in a kind of moving communicating field.
Background technology
Along with the development of mobile communication technology, increasing value-added service based on mobile communication technology develops thereupon and grows in strength, and multimedia message is exactly one of them.Multimedia message is a kind of Multimedia Message (Multimedia Messaging Service) that comprises media categories such as picture, video, audio frequency, because it supports multimedia function, obtain people's approval and use more and more, also become one of main source of the following income of mobile operator.Yet the tracking of multimedia message and the imperfection of recognition technology are but restricting its development always.
At present, there are dual mode in tracking and identification when propagating in the mobile network at multimedia message, are respectively SMIL (Synchronized Multimedia Integration Language; Synchronous multimedia integrate language) mode of mode and prefix.
The SMIL mode is to utilize the specific character of specific fields interpolation in the SMIL packet header of multimedia message, thus the sign multimedia message.When multimedia message when the MMS center, read SMIL packet header of multimedia message by MMS center, confirm whether its specific fields contains specific character, thereby judge whether it is to specify multimedia message.Yet there is following defective in this scheme:
1, because the multimedia message standard does not have unified standard, so there are two kinds of MMS formats, a kind of is to be with SMIL packet header, a kind of is not to be with SMIL packet header, just there are accordingly two kinds of different mobile phones, when between was sent out multimedia message mutually, specific character information was lost easily, thereby caused and can't discern;
2, same because between the different cell phone manufacturers that support SMIL packet header, still there is the mobile phone terminal otherness in the standard disunity, thus the specific character sign lost when causing the mutual forwarding MMS of different mobile phone terminals easily;
3, during the mutual forwarding MMS of the mobile phone terminal between the different mobile network, also lose easily in SMIL packet header;
4, some mobile phone terminals allow the SMIL packet header of the direct editing multimedia message of user, the defective that equally also can bring the specific character sign to lose easily.
The immediate problem that above-mentioned defective is brought specifies the multimedia message discrimination lower exactly, generally about 50%, during inclement condition even lower, therefore can't use this scheme and carry out data service exploitation operation.
The prefix mode be the appointment multimedia message is numbered after, require the user when transmit specifying multimedia message, need add the numbering of specifying multimedia message in recipient's phone number front, the long code of MMS center by receiving, identification is which bar is specified multimedia message.The greatest drawback that this scheme exists is exactly user's complex operation, once can only send to a phone number, poor user experience, and customer churn is serious, simultaneously, because can not utilize the mobile phone Group transmit mode, also causes and can't large tracts of land promote userbase and quantity forwarded.
Summary of the invention
Main purpose of the present invention is, a kind of recognition methods and system of Multimedia Message is provided, to solve the technical problem of the low and user's operation bidirectional of the multimedia message discrimination that exists in the prior art.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of recognition methods of Multimedia Message, described method comprises the following steps: to receive multimedia message to be identified, extracts the characteristic information of each media categories of described multimedia message to be identified, generates the characteristic information vector of corresponding each media categories respectively; Judge described multimedia message to be identified at least one media categories characteristic information vector with specify multimedia message in the difference of characteristic information vector of corresponding media categories whether in predefined deviation range, if determine that then multimedia message to be identified is the appointment multimedia message.
A kind of Multimedia Message recognition system, described system comprises: the characteristic information extraction unit, be used to extract the characteristic information of each media categories of specifying multimedia message and multimedia message to be identified, generate the characteristic information vector of corresponding each media categories; The matching judgment unit, the characteristic information vector that is used for multimedia message to be identified that the characteristic information extraction unit is extracted compares with the characteristic information vector of specifying multimedia message, when the characteristic information vector of at least one media categories of multimedia message to be identified with specify multimedia message in the difference of characteristic information vector of corresponding media categories in predefined deviation range the time, determine that multimedia message to be identified is the appointment multimedia message.
Beneficial effect of the present invention is, can realize 100% stable multimedia message discrimination after adopting technical solution of the present invention, simultaneously, carry out operation bidirectional because need not the user, the user can utilize mobile phone mass-sending pattern to carry out multimedia message mass-sending, user experience is good, can large tracts of land expand userbase and multimedia message traffic volume.Simultaneously, because it is to carry out content match comparison identification, belong to transparent behavior for the user, the user need not to carry out any operation bidirectional when forwarding MMS.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is a Multimedia Message recognition methods flow chart of the present invention;
Fig. 2 is the structured flowchart of the Multimedia Message recognition system of one embodiment of the invention;
Fig. 3 is the structured flowchart of the Multimedia Message recognition system of another embodiment of the present invention;
Fig. 4 is the structured flowchart of the Multimedia Message recognition system of another embodiment of the present invention;
Fig. 5 is the structured flowchart of another embodiment of Multimedia Message recognition system embodiment illustrated in fig. 4;
Fig. 6 is for using the forwarding of multimedia interaction diagrams of Multimedia Message recognition system of the present invention;
Fig. 7 is the present invention's one applicating example flow chart.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is described in further details below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of Multimedia Message recognition methods, describes below in conjunction with the Multimedia Message recognition methods of accompanying drawing to the embodiment of the invention.
Fig. 1 please refer to Fig. 1 for the flow chart of Multimedia Message recognition methods of the present invention, and this method comprises:
101: receive multimedia message to be identified, extract the characteristic information of each media categories of described multimedia message to be identified, generate the characteristic information vector of corresponding each media categories respectively;
In order to judge that whether multimedia message to be identified is exactly to specify multimedia message, the method for present embodiment also to comprise the characteristic information that extracts each media categories of specifying multimedia message, and generate the step of the characteristic information vector of corresponding each media categories of specifying multimedia message.
Need to prove, because multimedia message is the Multimedia Message that has comprised media categories such as picture, video, audio frequency, and each bar multimedia message has comprised one of foregoing at least, therefore, no matter be to extract the characteristic information of specifying multimedia message, still extract the characteristic information of multimedia message to be identified, all need extract respectively at the content of its concrete media categories that comprises.Illustrate, when a multimedia message (is specified multimedia message or multimedia message to be identified, down together) when having comprised picture, video and audio frequency, the characteristic information that extracts each media categories of this multimedia message just comprises: extract the characteristic information of described picture, as information such as picture format, rgb value, profile, color ranges; Extract the characteristic information of described video, as key frame information, comprise color, profile, contrast, aberration etc., perhaps frame difference information comprises step value, frame frequency of the relative key frame of dynamic object etc.; And the characteristic information that extracts described audio frequency, as form, bit rate, sample rate, time, tone, pitch etc.Wherein, rgb value (being also referred to as " RGB ") is a kind of color standard of industrial quarters, be to obtain color miscellaneous by variation and their stacks each other to red (R), green (G), blue (B) three Color Channels, RGB promptly is a color of representing three passages of red, green, blue, this standard almost comprised human eyesight can perception all colours, be one of the widest color system of utilization at present.
Equally for the ease of matching judgment, when extracting the characteristic information of specifying multimedia message or multimedia message to be identified, to extract the characteristic information of identical category at identical media categories, for example, when the characteristic information of " color range " of the picture of extract specifying multimedia message, will extract the characteristic information of " color range " of the picture of multimedia message to be identified equally, multimedia message to be identified does not comprise except the situation of this media categories of picture; When " sample rate " of " color of key frame " of " color range " of the picture of extract specifying multimedia message, video, audio frequency, the same media categories that multimedia message to be identified is comprised extracts corresponding characteristic information, if multimedia message to be identified only comprises video and audio frequency, then extract " color of key frame " and " sample rate " of audio frequency of the video of multimedia message to be identified.
In addition, after extracting the characteristic information of each media categories that multimedia message comprises, to generate a characteristic of correspondence information vector at the characteristic information of each media categories, can be by setting the mode of weights, the characteristic information value weighting of each media categories is generated one-dimensional vector that should the media categories characteristic information vector as this multimedia message.Certainly, belong to same multimedia message, the combination of eigenvectors of all media categories of this multimedia message can also be got up, generate multi-C vector, be the characteristic information vector of this multimedia message in order to identify which characteristic information vector.Illustrate, article one, multimedia message has comprised a picture, two sections videos and a section audio, after then extracting the characteristic information of four media categories of this multimedia message, finally the characteristic information vector of this multimedia message is the four-dimensional vector of the characteristic information vector that has comprised above-mentioned four contents.
According to present embodiment, all one-dimensional vector combination generation multi-C vectors of multimedia message can be realized by above-mentioned one-dimensional vector is designated the mode that belongs to same multimedia message, illustrate, if a certain is specified multimedia message to comprise two content I and J, after then extracting at least one characteristic information of these two contents, generate an one-dimensional vector I={I respectively
1, I
2... I
N-1, I
nAnd J={J
1, J
2... J
N-1, J
n, wherein, I
1～I
nBe the characteristic information of content I, J
1～J
nBe the characteristic information of content J, then that last position of above-mentioned two one-dimensional vector is unified, be " 03 " then to represent one-dimensional vector I={I as unified
1, I
2... I
N-1, 03} and one-dimensional vector J={J
1, J
2... J
N-1, 03} just belongs to and is numbered 03 appointment multimedia message.So promptly finished the preceding preparation of characteristic information vector comparison.
102: judge described multimedia message to be identified at least one media categories characteristic information vector with specify multimedia message in the difference of characteristic information vector of corresponding media categories whether in predefined deviation range, if determine that then multimedia message to be identified is the appointment multimedia message.
According to present embodiment, the characteristic information vector of more several media categories in the step of above-mentioned judgement can preestablish according to the characteristics and the needs of specifying multimedia message, the present invention not with this as restriction, be illustrated below by different examples.
Example one
This example be the one-dimensional vector (characteristic information vector) of judging a media categories correspondence of multimedia message to be identified with the difference of the one-dimensional vector (characteristic information vector) of the corresponding media categories of specifying multimedia message whether within predefined deviation.
Suppose that a certain is specified multimedia message only to comprise picture A, then extract the characteristic information of the picture A of this appointment multimedia message, generation is to one-dimensional vector that should picture A, at this moment, no matter how many media categories multimedia message to be identified has comprised, also no matter how many one-dimensional vector of other the media categories correspondences of multimedia message to be identified except that the one-dimensional vector of picture a correspondence is, as long as the difference of the one-dimensional vector that the one-dimensional vector of the picture a correspondence that it comprised is corresponding with the picture A that specifies multimedia message within predefined deviation, determines promptly that this multimedia message to be identified is for specifying multimedia message.
According to this example, above-mentioned appointment multimedia message not necessarily only comprises picture, also can comprise other media categories, but according to this example, as long as the difference of the picture characteristic of correspondence information vector of the picture characteristic of correspondence information vector of multimedia message to be identified and described appointment multimedia message within predefined deviation, determines then that this multimedia message to be identified is for specifying multimedia message.
According to this example, the media categories of above-mentioned coupling contrast also is not limited to picture, can be other media categories of specifying multimedia message, when other media categories of contrast, compare as long as will specify the characteristic information vector of other media categories of multimedia message and multimedia message to be identified to bring.
Example two
This example is whether the difference of the one-dimensional vector (characteristic information vector) of judging at least three media categories correspondences of the multimedia message to be identified one-dimensional vector (characteristic information vector) corresponding with corresponding three media categories of specifying multimedia message is within predefined deviation.
Suppose that a certain is specified multimedia message to comprise a picture A, two sections video B, C and a section audio D, after then extracting the characteristic information of picture A, video B, video C and audio frequency D, generate the characteristic information vector of the characteristic information vector of the characteristic information vector of corresponding picture A, corresponding video B, corresponding video C and the characteristic information vector of corresponding audio frequency D respectively, can also identify these four characteristic information vectors and belong to this appointment multimedia message, these characteristic information vectors are saved in the characteristic information storehouse.When the difference of the characteristic information characteristic of correspondence information vector of the picture A of the characteristic information characteristic of correspondence information vector of the picture a of a certain multimedia message to be identified of extracting and above-mentioned appointment multimedia message within predefined deviation, the difference of the characteristic information characteristic of correspondence information vector of the characteristic information characteristic of correspondence information vector of video b and the video B of above-mentioned appointment multimedia message is within predefined deviation, and the difference of the characteristic information characteristic of correspondence information vector of the characteristic information characteristic of correspondence information vector of video c and the video C of above-mentioned appointment multimedia message determines that then this identification multimedia message is for specifying multimedia message within predefined deviation.
According to this example, multimedia message to be identified can also comprise other media categories, but as long as wherein three media categories satisfy above-mentioned condition.
According to present embodiment, the content of the corresponding multimedia message of one-dimensional vector (the characteristic information vector of a media categories), therefore, the purpose of the comparison between the one-dimensional vector is whether to have similitude in order to compare two contents, judge perhaps whether query contents (multimedia message to be identified) is the revision of registration content (appointment multimedia message), also be the similitude of picture, the similitude of video, similitude of audio frequency or the like, common method is a utilization distance measure content similitude, and with result and predetermined threshold value comparison, if distance is less than threshold value, similarity determination is for just so.Can adopt in the prior art MSE distance measurement method, the SAD that generally the use mensuration of giving an example to realize, not repeat them here.
The present invention will specify the content characteristic information of multimedia message to extract, generate the corresponding characters string encoding and store the characteristic information storehouse into, when MMS center is passed through in all multimedia messages, when being handed down to the reception mobile phone, multimedia message is sent to the multimedia message Identification platform, the multimedia message Identification platform extracts the audio frequency of this multimedia message respectively, video and image content characteristic information, generate the corresponding characters string, it is parallel that to do matching ratio right with the appointment multimedia message characteristic information that is stored in assigned address respectively, according to comparison result, judge whether this multimedia message belongs to the multimedia message of appointment, and the statistics and the transaction function of decision triggering following.
The embodiment of the invention is utilized the independent recognition principle of fingerprint technique to video, image, audio frequency, and on the single base of recognition of former technology, utilizes last sign of one-dimensional vector to realize effective identification to multimedia message integral body.
The embodiment of the invention also provides a kind of Multimedia Message recognition system, is elaborated below in conjunction with the Multimedia Message recognition system of accompanying drawing to present embodiment.
Fig. 2 is the composition frame chart of the Multimedia Message recognition system of present embodiment, please refer to Fig. 2, and the Multimedia Message recognition system and the MMS center of the embodiment of the invention are coupled, and mainly comprise: characteristic information extraction unit 11 and matching judgment unit 13, wherein:
MMS center is used for the forwarding of multimedia request of receiving end/sending end, and when the notice receiving terminal receives multimedia message, gives described Multimedia Message recognition system with this multimedia message as forwarding of multimedia to be identified, for following the tracks of and identification.This embodiment of the present invention is configured to the concurrent working item with multimedia message identification and multimedia message propagation, and the influence that recognition function is received and dispatched multimedia message has dropped to minimum.
Characteristic information extraction unit 11 is used to extract the characteristic information of each media categories of specifying multimedia message and multimedia message to be identified, behind the characteristic information that extracts all media categories of specifying multimedia message, the characteristic information vector that generates corresponding each media categories in the appointment multimedia message is for comparison; Behind the characteristic information of at least one media categories that extracts multimedia message to be identified, generate multimedia message characteristic information vector to be identified, for coupling identification.Wherein, specify multimedia message will elaborate below by specifying multimedia message storehouse 15, specify multimedia message input unit 16 or specifying multimedia message storehouse 15 to implement with specifying multimedia message input unit 16; Multimedia message to be identified is to transmit by MMS center to obtain, and explains above, does not repeat them here.
Matching judgment unit 13 is used to receive the characteristic information vector of the multimedia message to be identified that characteristic information extraction unit 11 sends, and it is right that itself and the characteristic information vector of specifying multimedia message are carried out matching ratio, when the characteristic information vector of at least one media categories of multimedia message to be identified with specify multimedia message in the difference of characteristic information vector of corresponding media categories in predefined deviation range the time, determine that then multimedia message to be identified is the appointment multimedia message.
In the present embodiment, described Multimedia Message recognition system also comprises characteristic information storehouse 12, this characteristic information storehouse 12 is used to store the characteristic information vector of each media categories of the appointment multimedia message that described characteristic information extraction unit 11 extracts, for the characteristic information vector and its comparison of matching judgment unit 13, whether serve as to specify multimedia message to judge multimedia message to be identified with multimedia message to be identified.
In the present embodiment, described characteristic information storehouse 12 also is used to store the characteristic information vector through the appointment multimedia message of sign that extracts and generate through the characteristic information extraction unit.
In the present embodiment, described Multimedia Message recognition system also comprises output unit 14, this output unit 14 is used for matching result is exported, the matching result here can be the matching result through arrangement, also can be the result who directly exports, it be managed to offer operator by the matching judgment unit.
According to other embodiments of the invention, the Multimedia Message recognition system also comprises specifies multimedia message storehouse 15, as shown in Figure 2, this appointment multimedia message storehouse 15 is used to store the appointment multimedia message for forwarding of operator or content supplier's making, extract the characteristic information of each media categories of specifying multimedia message for characteristic information extraction unit 11, generate and specify the characteristic information vector of each media categories of multimedia message to be saved in the characteristic information storehouse, for comparison.
According to other embodiments of the invention, the Multimedia Message recognition system also comprises specifies multimedia message input unit 16, as shown in Figure 3, this appointment multimedia message input unit 16 has replaced the appointment multimedia message storehouse 15 in the foregoing description, be used for importing new appointment multimedia message in real time by operator or content supplier, extract the characteristic information of each media categories of specifying multimedia messages for characteristic information extraction unit 11, generate and specify the characteristic information vector of each media categories of multimedia message to be saved in the characteristic information storehouse, for comparison.Because the characteristic information capacity of specifying multimedia message is much smaller than the capacity of specifying multimedia message, so this embodiment can save the storage area greatly with respect to last embodiment.
According to other embodiments of the invention, the Multimedia Message recognition system can comprise simultaneously specifies multimedia message storehouse 15 and specifies multimedia message input unit 16, as shown in Figure 4, this appointment multimedia message input unit 16 provides the window of the new appointment multimedia message of input to operator or content supplier, and be stored into and specify multimedia message storehouse 15, play the effect of specifying multimedia message of upgrading, specify multimedia message storehouse 15 then to extract the characteristic information of each media categories of specifying multimedia message for characteristic information extraction unit 11, generate and specify the characteristic information vector of each media categories of multimedia message to store the characteristic information storehouse into, for comparison.This embodiment can not only upgrade at any time and specify the multimedia message storehouse, and owing to preserved the appointment multimedia message, can inquire about at any time for operator and content supplier, to avoid specifying the problem that repeats to import or leak input of multimedia message.
According to other embodiments of the invention, the Multimedia Message recognition system also comprises data preparation unit 17, as shown in Figure 5, be coupled with described matching judgment unit 13 and described output unit 14 respectively, be used for comparison result arrangement back by described output unit 14 outputs.According to this embodiment, comparing result can be organized into various required forms by this data preparation unit 17, for example: form, the forwarding situation that has comprised each bar appointment multimedia message in this form, comprise forwarding time, transmit number, receiving number, forwarding ground, receive ground etc., according to the appointment forwarding of multimedia situation of this form, can make things convenient for operator that it is added up, to implement incentive measure according to this result.According to other embodiments of the invention, also can be forms such as pie chart, chart, bar chart, the present invention not with this as restriction.
Below in conjunction with flow chart shown in Figure 6 the forwarding of multimedia flow process of using Multimedia Message recognition system of the present invention is described, wherein, related multimedia message recognition system can realize by Multimedia Message recognition system of the present invention and Multimedia Message recognition methods, as shown in Figure 6, the forwarding of multimedia flow process of using Multimedia Message recognition system of the present invention comprises the following steps:
Step 01: transmitting terminal sends multimedia message and submits to solicited message to MMS center, sends multimedia message with request;
Step 02: MMS center response described request, feedback response information is to transmitting terminal, and described multimedia message is submitted to MMS center;
Step 03: MMS center sends seed and differentiates solicited message to the multimedia message recognition system, and whether described multimedia message is carried out in request is the discriminating of specifying multimedia message;
Step 04: multimedia message recognition system response described request, feedback response information is to MMS center, and MMS center sends to the multimedia message recognition system with described multimedia message, judges by the multimedia message recognition system whether this multimedia message is to specify multimedia message;
When above-mentioned steps 03, step 04 are carried out, carry out following step:
Step 05: MMS center sends prompting and receives the solicited message of multimedia message to receiving terminal carrying out the seed discriminating to the request of multimedia message recognition system when;
Step 06: receiving terminal receives described request, and feedback response information is to MMS center;
Step 07: MMS center receives described response message, sends to receive the multimedia message response message to receiving terminal;
Step 08: receiving terminal receives described reception multimedia message response message, and the solicited message of feedback approval is asked the MMS center distributing multimedia message to MMS center.
Wherein, above-mentioned steps 01 to step 02 and step 05 to step 08 is the forwarding process of common multimedia message, do not repeat them here; And step 03, step 04 are the handling process according to Multimedia Message recognition system of the present invention and multimedia recognition methods.
According to above-mentioned steps, multimedia message is issued to receiving terminal according to conventional steps and flow process on the one hand, on the other hand, can discern and follow the tracks of this multimedia message by the multimedia message recognition system, so that stronger management is carried out in the forwarding of multimedia message.
The present invention is deployed in the MMS center rear end with the multimedia message Identification platform, will discern with the multimedia message propagation and be configured to the concurrent working item, and the influence that recognition function is received and dispatched multimedia message drops to minimum.
The present invention is described in detail below in conjunction with the example in the practical application shown in Figure 7, in the present embodiment, is the forwarding statistics of specifying multimedia message according to the result of multimedia message identification.
In this embodiment, supposing to add up certain specifies the user of multimedia message to transmit situation, picture A, video B and audio frequency C have been comprised in this appointment multimedia message, fetch strategy is for extracting color range, profile, the rgb value of picture, extract the color and the aberration of the key frame of video, extract tone, the pitch of audio frequency, matching strategy be picture and video the difference separately of corresponding one-dimensional vector is within predefined deviation respectively, recognition methods then of the present invention comprises the following steps:
Extract color range, profile, the rgb value of the picture A of described appointment multimedia message, extract the color and the aberration of the key frame of video B, extract tone, the pitch of audio frequency C, generate the one-dimensional vector I of corresponding picture A
A, corresponding video B one-dimensional vector I
BOne-dimensional vector I with corresponding audio frequency C
C, further generate the three-dimensional vector J of this appointment multimedia message
ABC
The described one-dimensional vector I of multimedia message will be specified
A, I
B, I
CWith three-dimensional vector J
ABCStore the characteristic information storehouse into;
Receive the multimedia message to be identified that MMS center is transmitted, according to described fetch strategy, extract the characteristic information of each media categories of this multimedia message to be identified, generate the one-dimensional vector of corresponding each media categories, the multi-C vector that further generates this multimedia message to be identified sends to the matching judgment unit as the characteristic information vector of multimedia message to be identified;
The matching judgment unit receives each characteristic information vector of described multimedia message to be identified, and obtains each the characteristic information vector I that specifies multimedia message from the characteristic information storehouse
A, I
B, I
C, J
ABC, the characteristic information vector of multimedia message to be identified is compared with it;
Whether the characteristic information vector of judging each media categories of multimedia message to be identified satisfies described matching strategy with the characteristic information vector of the corresponding media categories of specifying multimedia message, whether the difference of picture characteristic of correspondence information vector and the picture characteristic of correspondence information vector of specifying multimedia message that also is multimedia message to be identified is within predefined deviation, whether the difference of the video characteristic of correspondence information vector of multimedia message to be identified and the video characteristic of correspondence information vector of specifying multimedia message is within predefined deviation, if, think that then both mate, multimedia message to be identified is the appointment multimedia message; Otherwise think both and do not match, multimedia message to be identified is not to specify multimedia message;
To specify the hop count of multimedia message to add 1.
According to present embodiment, extract the content characteristic information of multimedia message to be identified, be to carry out according to fetch strategy, if multimedia message to be identified only comprises picture, then the fetch strategy according to picture extracts; If multimedia message to be identified comprises picture and audio frequency, then the fetch strategy according to picture and audio frequency extracts; If multimedia message to be identified comprises picture, video and audio frequency, then the fetch strategy according to picture, video and audio frequency extracts.
According to present embodiment, whether the vectorial characteristic information vector with each media categories of specifying multimedia message of characteristic information of judging each media categories of multimedia message to be identified satisfies matching strategy, if multimedia message to be identified only comprises picture, perhaps only comprise picture and audio frequency, perhaps only comprise video and audio frequency, because matching strategy is that the difference of one-dimensional vector of picture and video correspondence is within predefined deviation, then matching strategy is not satisfied in this multimedia message to be identified, be considered as not matching, have only the multimedia message to be identified of working as to comprise picture and video, and the difference of the one-dimensional vector that the one-dimensional vector that picture and video are corresponding respectively is corresponding with picture of specifying multimedia message and video difference just is considered as multimedia message to be identified for specifying multimedia message within predefined deviation.
Above-mentionedly just illustrate, protection scope of the present invention is not limited to said extracted strategy and above-mentioned matching strategy.
Key point of the present invention is, adopt content aware method to replace the method for SMIL packet header and prefix that multimedia message is discerned, provide a cover brand-new multimedia message recognition technology platform, overcome that traditional multimedia message recognition technology discrimination is not high, poor robustness, brought defective such as operation bidirectional to the user.Simultaneously, based on the numerous characteristics and the strong point of multimedia message recognition technology platform, operator can develop more multimedia message new business, for the user provides more rich data business experience.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the recognition methods of a Multimedia Message is characterized in that, described method comprises the following steps:
Receive multimedia message to be identified, extract the characteristic information of each media categories of described multimedia message to be identified, generate the characteristic information vector of corresponding each media categories respectively;
Judge described multimedia message to be identified at least one media categories characteristic information vector with specify multimedia message in the difference of characteristic information vector of corresponding media categories whether in predefined deviation range, if determine that then multimedia message to be identified is the appointment multimedia message.
2. method according to claim 1 is characterized in that, described method also comprises the characteristic information that extracts each media categories of specifying multimedia message, generates corresponding step of specifying the characteristic information vector of each media categories in the multimedia message, and this step comprises:
Extract the characteristic information of each media categories of specifying multimedia message;
With the weights that the characteristic information of each media categories of the appointment multimedia message that extracts is fixed, generate the characteristic information vector of corresponding each media categories.
3. method according to claim 2 is characterized in that, the characteristic information of each media categories of described extraction multimedia message to be identified, and the step that generates the characteristic information vector of corresponding each media categories respectively comprises:
The characteristic information of each media categories of the described multimedia message to be identified that extraction is identical with the characteristic information of the media categories of described appointment multimedia message;
With the weights that the characteristic information of each media categories of the multimedia message to be identified that extracts is fixed, generate the characteristic information vector of corresponding each media categories.
4. method according to claim 3 is characterized in that, described method also comprises:
With all media categories characteristic of correspondence information vectors combination of described appointment multimedia message, and identify described characteristic information vector and belong to described appointment multimedia message.
5. according to claim 2 or 3 described methods, it is characterized in that:
Described media categories comprises picture, video, audio frequency;
The characteristic information of described media categories comprises picture feature information, video features information, audio frequency characteristics information;
Described picture feature information comprises the information of form, rgb value, profile, color range, described video features information comprises key frame information and frame difference information, described key frame information comprises color, profile, contrast, aberration, described frame difference information comprises step value, the frame frequency of the relative key frame of dynamic object, and described audio frequency characteristics information comprises form, bit rate, sample rate, time, tone, pitch.
6. a Multimedia Message recognition system is characterized in that, described system comprises:
The characteristic information extraction unit is used to extract the characteristic information of each media categories of specifying multimedia message and multimedia message to be identified, generates the characteristic information vector of corresponding each media categories;
The matching judgment unit, the characteristic information vector that is used for multimedia message to be identified that the characteristic information extraction unit is extracted compares with the characteristic information vector of specifying multimedia message, when the characteristic information vector of at least one media categories of multimedia message to be identified with specify multimedia message in the difference of characteristic information vector of corresponding media categories in predefined deviation range the time, determine that multimedia message to be identified is the appointment multimedia message.
7. system according to claim 6 is characterized in that, described system also comprises:
The characteristic information storehouse is used to store the characteristic information vector of each media categories of the appointment multimedia message that described characteristic information extraction unit extracts.
8. system according to claim 7 is characterized in that, described system also comprises:
Specify the multimedia message storehouse, be used to store appointment multimedia message for transmitting, extract to specify the characteristic information of each media categories of multimedia message for the characteristic information extraction unit, the characteristic information vector that generates each media categories of specifying multimedia message is saved in described characteristic information storehouse, for comparison.
9. system according to claim 7 is characterized in that, described system also comprises:
Specify the multimedia message input unit, be used for input in real time and specify multimedia message, extract to specify the characteristic information of each media categories of multimedia message for the characteristic information extraction unit, the characteristic information vector that generates each media categories of specifying multimedia message is saved in described characteristic information storehouse, for comparison.
10. system according to claim 7 is characterized in that, described system also comprises appointment multimedia message storehouse and appointment multimedia message input unit, wherein:
Described appointment multimedia message storehouse is used to store the appointment multimedia message for transmitting, extract the characteristic information of each media categories of specifying multimedia message for the characteristic information extraction unit, the characteristic information vector that generates each media categories of specifying multimedia message is saved in described characteristic information storehouse, for comparison;
Described appointment multimedia message input unit is used to provide input to specify the window of multimedia message, to upgrade described appointment multimedia message storehouse.
11. system according to claim 7 is characterized in that, described system also comprises:
Output unit is used to export the matching result of described matching judgment unit.
12. system according to claim 11 is characterized in that, described system also comprises:
The data preparation unit, this data preparation unit is coupled with described matching judgment unit and described output unit respectively, is used for matching result arrangement back by described output unit output.
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| CN106792579A (en) * | 2016-12-01 | 2017-05-31 | 北京奇虎科技有限公司 | A kind of multimedia message hold-up interception method and device |
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| CN101656927B (en) * | 2009-09-22 | 2012-09-26 | 中兴通讯股份有限公司 | System and method for monitoring multimedia message content based on content recognition technology |
| CN102045662A (en) * | 2010-10-11 | 2011-05-04 | 深圳市仙童传奇科技有限公司 | Quick multimedia message recognition method based on media coding |
| CN102036196A (en) * | 2010-12-23 | 2011-04-27 | 中兴通讯股份有限公司 | Method, system and device for prejudging contents of multimedia message |
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