CN101996253A - Method for automatically extracting address and searching map - Google Patents

Method for automatically extracting address and searching map Download PDF

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Publication number
CN101996253A
CN101996253A CN2010105481584A CN201010548158A CN101996253A CN 101996253 A CN101996253 A CN 101996253A CN 2010105481584 A CN2010105481584 A CN 2010105481584A CN 201010548158 A CN201010548158 A CN 201010548158A CN 101996253 A CN101996253 A CN 101996253A
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China
Prior art keywords
address
map
image
automatically
literal
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CN2010105481584A
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Chinese (zh)
Inventor
镇立新
罗希平
陈青山
曹超阳
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Shanghai Hehe Information Technology Development Co Ltd
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Shanghai Hehe Information Technology Development Co Ltd
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Priority to CN2010105481584A priority Critical patent/CN101996253A/en
Publication of CN101996253A publication Critical patent/CN101996253A/en
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Abstract

The invention discloses a method for automatically extracting an address and searching a map. The method comprises the steps of: automatically identifying characters in a designated area in an image; automatically judging whether address information exists in the characters; if yes, automatically starting map software, or automatically connecting to a map website, and automatically searching the address; and returning a map in which the address location is marked to users. By using the method for automatically extracting an address and searching a map, the user can search an electronic map automatically by taking a picture of the address printed on various materials. The method improves the convenience for using the electronic map.

Description

The automatic method of extracting the address and searching for map
Technical field
The invention belongs to the character recognition technology field, relate to a kind of method of searching for map, the method that relates in particular to a kind of automatic extraction address and search for map.
Background technology
Camera is extensive use of in mobile phone and microcomputer at present, utilize Flame Image Process and optical character identification (OCR, Optical Character Recognition) principle, the image that camera is taken or scanner scanning obtains is handled and discerned, the technology of obtaining the literal in the image also is used widely, typical in take the image of business card with the camera that carries in the mobile phone, the literal that identifies wherein by Flame Image Process and OCR technology comes, and extracting the name that wherein comprises, useful informations such as phone join in the address book and go.
Utilizing Flame Image Process and optical character recognition to take the identification literal generally can be wrong, image to scanning, because the very clear wrong meeting of image is fewer, and the image that camera is taken, because ambient light, focusing during shooting, the existence of problems such as shake can cause the quality of image to descend inevitably, and then cause in the literal that OCR identifies in the wrong literal that can come out than the image OCR of scanning mistake to how a lot.And from the ultimate principle of optical character technology, to similar, the similar image of shooting quality in other words, the quantity of the kinds of characters that need distinguish is many more, the mistake possibility is big more, such as, on same image, if only need identification " 0 " arrive " 9 " 10 numerical characters, its accuracy rate can be higher than needs identification and comprise that " 0 " arrive the accuracy rate that 26 English characters that " 9 " 10 numerical characters and " A " arrive " Z " have 36 characters altogether.That is to say that if we know the type of the literal that need discern with the OCR technology in advance, just can utilize this information to limit needs the character number of OCR identification, thereby improves the accuracy rate of identification, reduces the possibility of makeing mistakes.Such as, if we know that in advance what need identification is exactly telephone number, so we just only identification can the legal character that appears in the telephone number when using the OCR technology to discern, thereby improve the accuracy rate of discerning.Another aspect because can there be mistake in the literal that the OCR technology identifies inevitably, so generally all can utilize other information that the result who discerns is carried out aftertreatment, plays the effect that corrects a mistake.Utilize english dictionary to proofread and correct the result of English OCR identification in this aspect method commonly used comprises, utilize the higher word of the frequency of occurrences in the Chinese, and utilize the context relation of Chinese to proofread and correct the result that Chinese character OCR discerns.If know the type of the literal that need discern with the OCR technology in advance, can improve accuracy rate equally to the aftertreatment of recognition result, such as, if we know that in advance needing delegation's literal of identification is email or network address, just can be according to the composition rule of email or network address, common character string waits the result to OCR identification to proofread and correct as " .com ", thereby improve the accuracy rate of identification, if we know that in advance needing delegation's literal of identification is the address, the accuracy rate that can improve identification according to the high frequency word in the address and context relation just.
Much have electronic chart software on the various electronic equipments such as mobile phone, if any the software of GPS navigation function, online map such as google map, sound of chopping wood map etc. has also brought a lot of facilities to daily life.Will search for these electronic equipments map that wait or online at present has dual mode, and a kind of is to utilize GPS equipment to obtain positional information to search map, and another kind is that the positional information that manual input will be searched is searched.
People see the address information that is printed on the paper through regular meeting in daily life, as the contact address in the various notice mails, address of printing on the advertising page or leaf or the like.The user sees that the address of these text descriptions often need search the described address of map later on specifically where.And under present mode, the user can only open the map software that carries on the electronic equipment earlier, perhaps is connected to map web site such as google map, sound of chopping wood map etc., and then manual Input Address information is searched for.This has brought inconvenience to the user.
Summary of the invention
Technical matters to be solved by this invention is: the method that a kind of automatic extraction address is provided and searches for map, and can search for electronic chart automatically by taking the address, thereby improve the convenience that people use electronic chart.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of automatic extraction address and the method for searching for map, the literal of appointed area in the recognition image automatically; Whether in literal have address information, if having then the software of spreading out the map automatically, perhaps be connected to map web site automatically, and search for this address automatically if judging automatically then, return the map that has marked this address location and see to the user.
As a preferred embodiment of the present invention, described method comprises the steps:
Step 101 is obtained image;
Step 102, specific region in user's specify image;
The literal in the specified image-region is analyzed and discerned to step 103;
Step 104 is judged: whether comprise address information in the literal that is identified; If answer is for being then to forward step 105 to; Otherwise forward step 106 to;
Step 105 is searched for electronic chart automatically, shows that mark has the map of described address particular location to see to the user;
Step 106 finishes.
As a preferred embodiment of the present invention, in the described step 101, take or scanner scanning is obtained image by image unit, perhaps duplicate to obtain by memory carrier; Perhaps need not to take, only obtain preview image by image unit;
In the described step 102, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the part of the image that the user selectes;
In the described step 103, analyze and discern the literal in the specified image-region, search the literal in the image-region, and utilize the OCR technology to discern.
As a preferred embodiment of the present invention, in the described step 102, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the rectangular area that belongs to an image part that the user limits with a rectangle frame.
As a preferred embodiment of the present invention, in the described step 104, judge that the method that whether comprises address information in the literal identified is: at first represent that at common address mode sets up the masterplate of coupling; To the character string that is identified, check wherein whether the masterplate of the mode of certain substring and certain presentation address is complementary; If coupling is returned answer for being; Otherwise return answer for denying;
Perhaps, the determination methods of described step 104 is: check in the character string to have comprised the key word of what presentation address, and comprised what numerals; If comprised the key word of at least one presentation address in the character string and comprised at least one numeral, then think this string representation address.
As a preferred embodiment of the present invention, in the described step 105, the map that provides on the electronic chart that carries on the electronic equipment and the map web site is provided described electronic chart;
When searching for the electronic chart that carries on the electronic equipment, need open the electronic chart that carries on this electronic equipment automatically earlier, in search column, insert described address information, the result that the line search of going forward side by side obtains searching for automatically;
During electronic chart on the search network, from being dynamically connected network and open the webpage of this electronic chart, in the search column of webpage, insert described address information automatically, the result that the line search of going forward side by side obtains searching for earlier;
If in electronic chart, do not find described address, then return the information of the search failure of electronic chart that the electronic equipment searched for carries or map web site.
A kind of automatic extraction address and the method for searching for map, described method comprises the steps:
Step 201 is obtained image;
Step 202, specific region in user's specify image;
The literal in the specified image-region is analyzed and discerned to step 203;
Step 204 judges in the literal that is identified whether comprise address information; If answer is for being then to forward step 205 to; Otherwise forward step 208 to;
Step 205 comprises address information in the literal that the prompting User Recognition is come out, and selects whether to search for map by the user; If answer then forwards step 206 to for being, otherwise forwards step 208 to;
Step 206, the known literal that needs to discern is the address, and the literal in the described specify image zone is discerned again;
Step 207 is searched for electronic chart automatically, shows that mark has the map of described address particular location to see to the user;
Step 208 finishes.
As a preferred embodiment of the present invention, in the described step 201, take or scanner scanning is obtained image by image unit, perhaps duplicate to obtain by memory carrier; Perhaps need not to take, only obtain preview image by image unit;
In the described step 202, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the part of the image that the user selectes;
In the described step 203, analyze and discern the literal in the specified image-region, search the literal in the image-region, and utilize the OCR technology to discern.
As a preferred embodiment of the present invention, in the described step 204, judge that the method that whether comprises address information in the literal identified is: at first represent that at common address mode sets up the masterplate of coupling; To the character string that is identified, check wherein whether the masterplate of the mode of certain substring and certain presentation address is complementary; If coupling is returned answer for being; Otherwise return answer for denying;
Perhaps, the determination methods of described step 204 is: check in the character string to have comprised the key word of what presentation address, and comprised what numerals; If comprised the key word of at least one presentation address in the character string and comprised at least one numeral, then think this string representation address.
As a preferred embodiment of the present invention, in the described step 207, the map that provides on the electronic chart that carries on the electronic equipment and the map web site is provided described electronic chart;
When searching for the electronic chart that carries on the electronic equipment, need open the electronic chart that carries on this electronic equipment automatically earlier, in search column, insert described address information, the result that the line search of going forward side by side obtains searching for automatically;
During electronic chart on the search network, from being dynamically connected network and open the webpage of this electronic chart, in the search column of webpage, insert described address information automatically, the result that the line search of going forward side by side obtains searching for earlier;
If in electronic chart, do not find described address, then return the information of the search failure of electronic chart that the electronic equipment searched for carries or map web site.
Beneficial effect of the present invention is: automatic extraction address that the present invention proposes and the method for searching for map make the user to search for electronic chart automatically by the address that shooting is printed on the various materials.This method has improved the convenience that people use electronic chart.
Description of drawings
Fig. 1 is the process flow diagram of map search method of the present invention among the embodiment one.
Fig. 2 is the process flow diagram of map search method of the present invention among the embodiment two.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 1, the present invention has disclosed a kind of method of extracting the address automatically and searching for map in conjunction with optical character recognition, and the concrete steps of this method are as follows:
[step 101] obtains image.
Can take or scanner scanning be obtained image by image unit, perhaps duplicate to obtain by memory carrier; Perhaps need not to take, only obtain preview image by image unit.
Specific region in [step 102] user specify image.
Wherein, the specific region comprises the Zone Full of image itself in user's specify image; Perhaps comprise the rectangular area that belongs to an image part that the user limits with a rectangle frame, the mode of user's selection portion partial image can be other modes certainly, is not limited to pass through rectangle frame.
The literal in the specified image-region is analyzed and discerned to [step 103].
Search the literal in the image-region, and utilize the OCR technology to discern, this method is a prior art.
Do [step 104] judged: comprise address information in the literal that is identified? if answer is for being then to forward step 105 to.Otherwise forward step 106 to, finish.
Wherein, judge that the method that whether comprises address information in the literal that is identified can have two kinds:
One of method is at first to represent that at common address mode sets up the masterplate of coupling, and for example, " address: * * * * * * " is the address information with key word " address: " expression.To the character string that is identified, check wherein whether the masterplate of the mode of certain substring and certain presentation address is complementary.Such as to " address: No. 333, Pudong plum blossom road " this character string, we are checked through " address: " this key word, the address information of just can having determined this string representation.
Two of method is, check the key word that has comprised what presentation address in the character string, and comprised what numerals, if comprised the key word of at least one presentation address in the character string and comprised at least one numeral, then think this string representation address.The key word of described presentation address comprises: Chinese character " province " " city " " county " " district " " road " " number " " chamber " " building " etc., English word " road ", " avenue ", " No. ", " Street ", " room " etc.
[step 105] searches for electronic chart automatically, shows that mark has the map of described address particular location to see to the user.
The map that provides on the electronic chart that carries on the electronic equipment and the map web site is provided described electronic chart.
In order to search for the electronic chart that carries on the electronic equipment, need to open the electronic chart that carries on this electronic equipment automatically earlier, in search column, insert described address information, the result that the line search of going forward side by side obtains searching for automatically.
For the electronic chart on the search network, need earlier in the search column of webpage, to insert described address information automatically, the result that the line search of going forward side by side obtains searching for from being dynamically connected network and open the webpage of this electronic chart.
If in electronic chart, do not find described address, then return the information of the search failure of electronic chart that the electronic equipment searched for carries or map web site.
[step 106] finishes.
Embodiment two
In order to improve the accuracy rate of identification, another kind of implementation of the present invention be by user interactions come to known be that the character string of address is discerned again, see Fig. 2, concrete steps are as follows:
[step 201] obtains image.
Specific region in [step 202] user specify image.
The literal in the specified image-region is analyzed and discerned to [step 203].
Do [step 204] judged: comprise address information in the literal that is identified? if answer is for being then to forward step 205 to.Otherwise forward step 208 to, finish.
Comprise address information in the literal that [step 205] prompting User Recognition is come out, select to search for map by the user? if answer then forwards step 206 to for being, otherwise forwards step 208 to, finish.
[step 206] known literal that needs to discern is the address, and the literal in the described specify image zone is discerned again.
[step 207] searches for electronic chart automatically, shows that mark has the map of described address particular location to see to the user.
[step 208] finishes.
The scheme that the specific implementation of above-mentioned steps is described in can reference example one.
In sum, automatic extraction address that the present invention proposes and the method for searching for map, the address that makes the user can be printed on the various materials (or obtain from other channels) by shooting is searched for electronic chart automatically.This method has improved the convenience that people use electronic chart.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change are possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or essential characteristic, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to disclosed embodiment.

Claims (10)

1. method of automatically extracting the address and searching for map is characterized in that:
The literal of appointed area in the automatic recognition image;
Whether in literal have address information, if having then the software of spreading out the map automatically, perhaps be connected to map web site automatically, and search for this address automatically if judging automatically then, return the map that has marked this address location and see to the user.
2. automatic extraction address according to claim 1 and the method for searching for map is characterized in that:
Described method comprises the steps:
Step 101 is obtained image;
Step 102, specific region in user's specify image;
The literal in the specified image-region is analyzed and discerned to step 103;
Step 104 is judged: whether comprise address information in the literal that is identified; If answer is for being then to forward step 105 to; Otherwise forward step 106 to;
Step 105 is searched for electronic chart automatically, shows that mark has the map of described address particular location to see to the user;
Step 106 finishes.
3. automatic extraction address according to claim 2 and the method for searching for map is characterized in that:
In the described step 101, take or scanner scanning is obtained image, perhaps duplicate to obtain by memory carrier by image unit; Perhaps need not to take, only obtain preview image by image unit;
In the described step 102, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the part of the image that the user selectes;
In the described step 103, analyze and discern the literal in the specified image-region, search the literal in the image-region, and utilize the OCR technology to discern.
4. automatic extraction address according to claim 3 and the method for searching for map is characterized in that:
In the described step 102, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the rectangular area that belongs to an image part that the user limits with a rectangle frame.
5. automatic extraction address according to claim 2 and the method for searching for map is characterized in that:
In the described step 104, judge that the method that whether comprises address information in the literal identified is: at first represent that at common address mode sets up the masterplate of coupling; To the character string that is identified, check wherein whether the masterplate of the mode of certain substring and certain presentation address is complementary; If coupling is returned answer for being; Otherwise return answer for denying;
Perhaps, the determination methods of described step 104 is: check in the character string to have comprised the key word of what presentation address, and comprised what numerals; If comprised the key word of at least one presentation address in the character string and comprised at least one numeral, then think this string representation address.
6. automatic extraction address according to claim 2 and the method for searching for map is characterized in that:
In the described step 105, the map that provides on the electronic chart that carries on the electronic equipment and the map web site is provided described electronic chart;
When searching for the electronic chart that carries on the electronic equipment, need open the electronic chart that carries on this electronic equipment automatically earlier, in search column, insert described address information, the result that the line search of going forward side by side obtains searching for automatically;
During electronic chart on the search network, from being dynamically connected network and open the webpage of this electronic chart, in the search column of webpage, insert described address information automatically, the result that the line search of going forward side by side obtains searching for earlier;
If in electronic chart, do not find described address, then return the information of the search failure of electronic chart that the electronic equipment searched for carries or map web site.
7. a method of extracting the address and searching for map automatically is characterized in that described method comprises the steps:
Step 201 is obtained image;
Step 202, specific region in user's specify image;
The literal in the specified image-region is analyzed and discerned to step 203;
Step 204 judges in the literal that is identified whether comprise address information; If answer is for being then to forward step 205 to; Otherwise forward step 208 to;
Step 205 comprises address information in the literal that the prompting User Recognition is come out, and selects whether to search for map by the user; If answer then forwards step 206 to for being, otherwise forwards step 208 to;
Step 206, the known literal that needs to discern is the address, and the literal in the described specify image zone is discerned again;
Step 207 is searched for electronic chart automatically, shows that mark has the map of described address particular location to see to the user;
Step 208 finishes.
8. automatic extraction address according to claim 7 and the method for searching for map is characterized in that:
In the described step 201, take or scanner scanning is obtained image, perhaps duplicate to obtain by memory carrier by image unit; Perhaps need not to take, only obtain preview image by image unit;
In the described step 202, the specific region comprises the Zone Full of image itself in user's specify image, perhaps comprises the part of the image that the user selectes;
In the described step 203, analyze and discern the literal in the specified image-region, search the literal in the image-region, and utilize the OCR technology to discern.
9. automatic extraction address according to claim 7 and the method for searching for map is characterized in that:
In the described step 204, judge that the method that whether comprises address information in the literal identified is: at first represent that at common address mode sets up the masterplate of coupling; To the character string that is identified, check wherein whether the masterplate of the mode of certain substring and certain presentation address is complementary; If coupling is returned answer for being; Otherwise return answer for denying;
Perhaps, the determination methods of described step 204 is: check in the character string to have comprised the key word of what presentation address, and comprised what numerals; If comprised the key word of at least one presentation address in the character string and comprised at least one numeral, then think this string representation address.
10. automatic extraction address according to claim 7 and the method for searching for map is characterized in that:
In the described step 207, the map that provides on the electronic chart that carries on the electronic equipment and the map web site is provided described electronic chart;
When searching for the electronic chart that carries on the electronic equipment, need open the electronic chart that carries on this electronic equipment automatically earlier, in search column, insert described address information, the result that the line search of going forward side by side obtains searching for automatically;
During electronic chart on the search network, from being dynamically connected network and open the webpage of this electronic chart, in the search column of webpage, insert described address information automatically, the result that the line search of going forward side by side obtains searching for earlier;
If in electronic chart, do not find described address, then return the information of the search failure of electronic chart that the electronic equipment searched for carries or map web site.
CN2010105481584A 2010-11-17 2010-11-17 Method for automatically extracting address and searching map Pending CN101996253A (en)

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Application publication date: 20110330