CN105590113A - Information-acquiring method based on law enforcement recorder - Google Patents
Information-acquiring method based on law enforcement recorder Download PDFInfo
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- CN105590113A CN105590113A CN201510953577.9A CN201510953577A CN105590113A CN 105590113 A CN105590113 A CN 105590113A CN 201510953577 A CN201510953577 A CN 201510953577A CN 105590113 A CN105590113 A CN 105590113A
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- 238000000034 method Methods 0.000 title claims abstract description 46
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
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Abstract
The invention discloses an information-acquiring method based on a law enforcement recorder. The information-acquiring method based on the law enforcement recorder comprises the following steps that the law enforcement recorder acquires a target image acquired by a camera; the law enforcement recorder identifies a vehicle license in the target image to obtain corresponding vehicle license information; and the law enforcement recorder associates and saves the obtained vehicle license information and the target image. The invention also discloses a law enforcement recorder. The information-acquiring method identifies and extracts vehicle license information in video and picture files acquired by the law enforcement recorder so that a law enforcer may quickly find out a corresponding image according to the corresponding vehicle license information and is not required to check the corresponding video and picture files one by one. Therefore, the detection operation of the law enforcer is greatly facilitated and efficiency is increased.
Description
Technical field
The present invention relates to terminal technology field, relate in particular to a kind of information collection side based on law-enforcing recorderMethod and law-enforcing recorder.
Background technology
Law-enforcing recorder claims again single alert law enforcement video and audio recorder. Collection digital vedio recording, digital photographing, intercommunicationTransmitter function, can be to carrying out dynamic, static field condition digitlization note in enforcing lawRecord, is convenient to law enfrocement official's use of enforcing the law in various environment. Video that at present, law-enforcing recorder gathers,Photo files generally only provides simple preview, in the video file, photo files producing, deposits for evidence obtainingA large amount of license board information, law enfrocement official need to sieve one by one in the video file of magnanimity, photo filesChoosing is searched, and uses very inconvenience.
Therefore, because existing law-enforcing recorder cannot be to the car plate letter in the video, the photo files that gatherBreath is identified caused awkward problem. Problem in this respect urgently inventor solves.
Foregoing only, for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing isPrior art.
Summary of the invention
Main purpose of the present invention is to solve existing law-enforcing recorder cannot be to the video, the photo that gatherLicense board information in file is identified caused awkward problem.
For achieving the above object, the invention provides a kind of information collecting method based on law-enforcing recorder, instituteThe information collecting method of stating based on law-enforcing recorder comprises the following steps:
Law-enforcing recorder obtains the target image of camera collection;
Described law-enforcing recorder carries out car plate identification to described target image and obtains corresponding license board information;
Described law-enforcing recorder carries out the license board information obtaining and described target image associated and preserves.
Preferably, described license board information comprises the number-plate number, and described law-enforcing recorder is to described orderThe picture of marking on a map carries out the step that car plate identification obtains corresponding license board information and comprises:
Described law-enforcing recorder is by determining license plate area to described target image procession scanning;
Described law-enforcing recorder extracts license plate image in described license plate area;
Described law-enforcing recorder is cut apart and is obtained character picture according to character described license plate image;
Described law-enforcing recorder mates described character picture to determine with default standard character imageThe corresponding number-plate number.
Preferably, described license board information also comprises character color and car plate color, and, described law enforcement noteRecord instrument mates to determine the corresponding number-plate number by described character picture with default standard character imageStep after, also comprise:
Described law-enforcing recorder reads corresponding character color and character with exterior domain according to described license plate imageCar plate color.
Preferably, described law-enforcing recorder by the license board information obtaining and described target image carry out associated alsoAfter the step of preserving, also comprise:
In the time receiving search instruction, described law-enforcing recorder provides search interface to input car plate for userInformation;
Described law-enforcing recorder is searched corresponding target image according to the license board information of user's input;
Described law-enforcing recorder shows found target image and corresponding license board information.
Preferably, described law-enforcing recorder by the license board information obtaining and described target image carry out associated alsoAfter the step of preserving, also comprise:
Described target image and corresponding license board information are uploaded to default server by described law-enforcing recorder.
In addition, for achieving the above object, the present invention also provides a kind of law-enforcing recorder, described law enforcement recordInstrument comprises:
Acquisition module, for obtaining the target image of camera collection;
Identification module, obtains corresponding license board information for described target image being carried out to car plate identification;
Memory module, for carrying out the license board information obtaining and described target image associated and preserving.
Preferably, described license board information comprises the number-plate number, and described identification module comprises that location is singleUnit, extraction unit, cutting unit and matching unit;
Described positioning unit, determines license plate area for passing through to described target image procession scanning;
Described extraction unit, for extracting license plate image in described license plate area;
Described cutting unit, for cutting apart and obtain character picture according to character described license plate image;
Described matching unit, for described character picture is mated with default standard character image withDetermine the corresponding number-plate number.
Preferably, described license board information also comprises character color and car plate color, and, described identification mouldPiece also comprises reading unit;
Described reading unit, for reading beyond corresponding character color and character according to described license plate imageThe car plate color in region.
Preferably, described law-enforcing recorder also comprises retrieval module and display module;
Described retrieval module, in the time receiving search instruction, provides search interface to input for userLicense board information;
Described retrieval module, also for searching corresponding target image according to the license board information of user's input;
Described display module, shows for the target image to found and corresponding license board information.
Preferably, described law-enforcing recorder also comprises sending module;
Described sending module, for being uploaded to default service by described target image and corresponding license board informationDevice.
The present invention by gather target image carry out car plate identification, and by the license board information identifying withTarget image is associated to be preserved, consult for law enfrocement official, has realized gathering in law-enforcing recorderThe identification of the license board information in video, photo files and the extraction of information, make the law enfrocement official can basisCorresponding license board information fast finding is to corresponding image, without screening and check corresponding video and photograph one by oneSheet file, greatly facilitates law enfrocement official's investigation, has improved efficiency.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that the present invention is based on information collecting method first embodiment of law-enforcing recorder;
Fig. 2 is that in the present invention, law-enforcing recorder and server carry out mutual effect schematic diagram;
Fig. 3 is the schematic flow sheet that the present invention is based on information collecting method second embodiment of law-enforcing recorder;
Fig. 4 is the effect schematic diagram of the preferred embodiment that in the present invention, license plate image is divided into character picture;
Fig. 5 is the schematic flow sheet that the present invention is based on information collecting method the 3rd embodiment of law-enforcing recorder;
Fig. 6 is the high-level schematic functional block diagram of the first embodiment of law-enforcing recorder of the present invention;
Fig. 7 is the high-level schematic functional block diagram of the second embodiment of law-enforcing recorder of the present invention;
Fig. 8 is the high-level schematic functional block diagram of the 3rd embodiment of law-enforcing recorder of the present invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are done further with reference to accompanying drawingExplanation.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, and be not used in limitDetermine the present invention.
The main solution of the embodiment of the present invention is: law-enforcing recorder obtains the target figure of camera collectionPicture; Described law-enforcing recorder carries out car plate identification to described target image and obtains corresponding license board information; InstituteStating law-enforcing recorder carries out the license board information obtaining and described target image associated and preserves.
Because existing law-enforcing recorder cannot carry out the license board information in the video, the photo files that gatherThe awkward problem that identification causes.
Based on the problems referred to above, the invention provides a kind of information collecting method based on law-enforcing recorder.
With reference to Fig. 1, Fig. 1 is the first embodiment that the present invention is based on the information collecting method of law-enforcing recorderSchematic flow sheet.
In the present embodiment, the described information collecting method based on law-enforcing recorder comprises:
Step S10, law-enforcing recorder obtains the target image of camera collection;
Described target image can be the photo of taking, or can be also each of shooting with video-corder in video processThe image of frame. Described camera can be the camera in described law-enforcing recorder, or can be also instituteState the external camera that law-enforcing recorder connects by internal interface.
Described law-enforcing recorder can, in the time detecting photographing instruction or shooting instruction, start camera and adoptCollection target image. Concrete, described law-enforcing recorder can be provided for the physics of taking pictures or making a video recording byKey, takes pictures or makes a video recording instruction described in triggering in the time of the button operation detecting based on described physical button.
Step S20, described law-enforcing recorder carries out car plate identification to described target image and obtains corresponding car plateInformation;
Described law-enforcing recorder carries out car plate identification to the target image gathering, to obtain described target imageIn license board information. Should be understood that, in the time that described target image contains multiple car plate, described in holdThe definite license board information of method recorder can comprise the license board information of all car plates in described target image.
Described license board information can include but not limited to the number-plate number, car plate color, character color etc.
Step S30, described law-enforcing recorder by the license board information obtaining and described target image carry out associated alsoPreserve.
Described license board information can be stored with the form of text, or also can be by described license board informationInsert in corresponding target image and preserve. Described law-enforcing recorder can be by obtained license board informationCarry out associatedly with described target image, and be saved to memory module. Described law-enforcing recorder can be set up carThe mapping relations list of board information and corresponding target image, and by described license board information, described target imageAnd described mapping relations list is saved to described memory module, consult for law enfrocement official.
Further, described memory module can comprise the storage medium of at least one type, described storageMedium comprise flash memory, hard disk, multimedia card, card type memory (for example, SD or DX memory etc.),Random access storage device (RAM), static random-access memory (SRAM), read-only storage (ROM),Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic are depositedReservoir, disk, CD etc.
Further, described law-enforcing recorder can also be by the license board information of described target image and correspondenceReach default server. Described server be preset for store law-enforcing recorder gather video file,The server of photo files etc. With reference to Fig. 2, Fig. 2 is that in the present invention, law-enforcing recorder and server are handed overMutual effect schematic diagram. Described law-enforcing recorder can be undertaken by wireless communication module and described serverCommunication, described wireless communication module can be between law-enforcing recorder and wireless communication system or networkRadio communication, described wireless communication module can pass through mobile communication technology, wireless interconnected network technology orPerson's short distance wireless communication technology etc. mode is implemented; Or described law-enforcing recorder also can be by innerInterface is connected to described server, communicates by data wire and described server.
The present embodiment is by the target image gathering is carried out to car plate identification, and by the license board information identifyingPreservation associated with target image, consults for law enfrocement official, has realized gathering in law-enforcing recorderVideo, photo files in the identification of license board information and the extraction of information, make the law enfrocement official can rootAccording to corresponding license board information fast finding to corresponding image, without screening one by one check corresponding video andPhoto files, greatly facilitates law enfrocement official's investigation, has improved efficiency.
With reference to Fig. 3, Fig. 3 is the second embodiment that the present invention is based on the information collecting method of law-enforcing recorderSchematic flow sheet. Based on the first embodiment of the above-mentioned information collecting method based on law-enforcing recorder, described inLicense board information comprises the number-plate number, and described step S20 comprises:
S21, described law-enforcing recorder is by determining license plate area to described target image procession scanning;
Described law-enforcing recorder is determined license plate area to described target image procession scanning. Concrete,If search corresponding license plate area in described law-enforcing recorder scanning process, export described license plate areaCoordinate and size; If do not find license plate area in described law-enforcing recorder scanning process, obtain nextTarget image scans.
The process of described law-enforcing recorder procession scanning specifically can realize as follows: to instituteState target image and scan line by line, determine the first candidate region of containing car plate line segment in the row direction,Read initial row coordinate and the height of described the first candidate region, then to described the first candidate region by columnScan, determine that described the first inside, candidate region contains the second candidate of car plate line segment on column directionRegion, reads initial row coordinate and the width of described the second candidate region, according to described initial row coordinate,Described initial row coordinate, described height, described width are determined corresponding license plate area.
Further, described law-enforcing recorder can also be before to the scanning of described target image procession,First described target image is carried out to pretreatment, to adjust the picture quality of described target image and then to improve carThe degree of accuracy of board identification. Concrete, described law-enforcing recorder carries out pretreated process and can comprise and carrying outNoise filtering, AWB, automatic exposure and gamma correction, edge enhancing, contrast adjustment etc.Etc. processing procedure.
S22, described law-enforcing recorder extracts license plate image in described license plate area;
S23, described law-enforcing recorder is cut apart and is obtained character picture according to character described license plate image;
Described law-enforcing recorder extracts license plate image in described license plate area, and described license plate image is pressedCut apart and obtain character picture according to character. Described law-enforcing recorder can be according to the character in license plate imageSize is carried out Character segmentation according to dynamic template, obtains each character picture. With reference to Fig. 4, Fig. 4 is thisBright middle license plate image is divided into the effect schematic diagram of the preferred embodiment of character picture.
Further, be accurate location character image, described law-enforcing recorder can also be by described car plate figurePicture carries out the processing such as gray processing, gray scale stretching, binaryzation, marginalisation, and license plate image after treatment is enteredLine character dividing processing.
S24, described law-enforcing recorder described character picture is mated with default standard character image withDetermine the corresponding number-plate number.
Described law-enforcing recorder mates described character picture with default standard character image, determineThe corresponding number-plate number. Described standard character image can be preset for carrying out the character of character recognitionImage, described standard character image can be kept in the memory module of described law-enforcing recorder.
Concrete, described law-enforcing recorder can by each character picture successively with memory module in standardCharacter picture is compared, if when the similarity of character picture and standard character image reaches predetermined threshold value,Determine that character corresponding to described standard character image is the character that described character picture is corresponding, will identifyCharacter be arranged in order as the corresponding number-plate number.
Further, if described license board information also comprises character color and car plate color, described law enforcement noteRecord instrument can also read corresponding character color and the character car plate face with exterior domain according to described license plate imageLook. Described character color is the color of the number-plate number in described license plate image, described in described car plate color isIn license plate image, the number-plate number is with the color of exterior domain.
The present embodiment is determined license plate area by the target image procession scanning to camera collection, andLicense plate image in license plate area is carried out to Character segmentation, character picture and standard character image are comparedTo determining the corresponding number-plate number, realize the identification to the license board information in target image, make law enforcementRecorder can, by target image and contained associated preservation of license board information thereof, be looked into for law enfrocement officialRead, realized identification and the letter of the license board information in video, the photo files to gathering in law-enforcing recorderThe extraction of breath, makes law enfrocement official to arrive corresponding image according to corresponding license board information fast finding,Without screening and check corresponding video and photo files one by one, greatly facilitate law enfrocement official's investigation workDo, improved law enforcement efficiency.
With reference to Fig. 5, Fig. 5 is the 3rd embodiment that the present invention is based on the information collecting method of law-enforcing recorderSchematic flow sheet. Based on the first embodiment of the above-mentioned information collecting method based on law-enforcing recorder, described inAfter step S30, also comprise:
Step S41, in the time receiving search instruction, described law-enforcing recorder provides search interface for userInput license board information;
Described law-enforcing recorder, in the time receiving search instruction, provides search interface to supply user based on described inspectionRope interface input license board information, described license board information can be part license board information, for example: car plate color,Number-plate number etc. It is right that the part license board information that described law-enforcing recorder can be inputted by user findsThe target image of answering and the license board information completing. For example: described law-enforcing recorder can be inputted according to userThe number-plate number, find all target images that contain the described number-plate number, and the described number-plate numberCorresponding car plate color, character color etc. information.
Described search interface is for inputting license board information for user, and described law-enforcing recorder can be according to userInput license board information inquire about target image corresponding to described license board information, should be understood that, according to timeBetween multiple continuous target images also can form the video that contains described license board information.
Described law-enforcing recorder can be provided for the physical button of information retrieval, is detecting based on describedWhen the button operation of physical button, trigger described search instruction; Or described law-enforcing recorder is also passableBe provided for the shortcut icon of information retrieval, in the time of the touch operation detecting based on described shortcut icon,Trigger described search instruction.
Step S42, described law-enforcing recorder is searched corresponding target figure according to the license board information of user's inputPicture;
Step S43, described law-enforcing recorder carries out found target image and corresponding license board informationShow.
Described law-enforcing recorder is searched corresponding target image according to the license board information of user's input; Described holdingMethod recorder can show found target image and corresponding complete car plate letter by display moduleBreath. Described law-enforcing recorder can be searched correspondence according to license board information and the mapping relations list of user's inputTarget image, described mapping relations list is that law-enforcing recorder gathers the car plate letter of preserving when target imageCease the mapping relations list with corresponding target image.
Further, described law-enforcing recorder also can be by determined license board information and described target imageCarry out association, and be saved to the memory module of described law-enforcing recorder, described law-enforcing recorder is by described orderPicture and the corresponding license board information of marking on a map is uploaded to default server; Described law-enforcing recorder is receiving retrievalWhen instruction, provide search interface to input license board information for user, described law enforcement record is inputted according to userLicense board information from target image corresponding to described whois lookup, and show the target image that findsAnd corresponding complete license board information.
The present embodiment is by providing search interface to input license board information for user, and the car of inputting according to userThe target image that board information searching is corresponding and complete license board information, and show, realize law enforcementThe Classification Management of the target image that recorder gathers, can check soon by license board information law enfrocement official quicklyAsk corresponding target image and complete license board information, without screening and check corresponding video and photo literary composition one by onePart, greatly facilitates law enfrocement official's investigation, has improved efficiency.
The executive agent of the information collecting method based on law-enforcing recorder of the above-mentioned first to the 3rd embodiment is equalCan or be arranged on the information collecting device in law-enforcing recorder for law-enforcing recorder. Further, shouldInformation collecting method based on law-enforcing recorder can be by being arranged on law-enforcing recorder or information collecting deviceClient-side program realize, wherein, this law-enforcing recorder can include but not limited to on-site law-enforcing image noteRecord instrument, police law-enforcing recorder, on-site law-enforcing recorder, single alert law enforcement video and audio recorder etc.
The present invention further provides a kind of law-enforcing recorder.
With reference to Fig. 6, the high-level schematic functional block diagram of the first embodiment that Fig. 6 is law-enforcing recorder of the present invention.
In the present embodiment, described law-enforcing recorder comprises acquisition module 10, identification module 20 and storage mouldPiece 30;
Described acquisition module 10, for obtaining the target image of camera collection;
Described target image can be the photo of taking, or can be also each of shooting with video-corder in video processThe image of frame. Described camera can be the camera in described law-enforcing recorder, or can be also instituteState the external camera that law-enforcing recorder connects by internal interface.
Described law-enforcing recorder can, in the time detecting photographing instruction or shooting instruction, start camera and adoptCollection target image. Concrete, described law-enforcing recorder can be provided for the physics of taking pictures or making a video recording byKey, takes pictures or makes a video recording instruction described in triggering in the time of the button operation detecting based on described physical button.
Described identification module 20, obtains corresponding car plate letter for described target image being carried out to car plate identificationBreath;
Described law-enforcing recorder carries out car plate identification to the target image gathering, to obtain described target imageIn license board information. Should be understood that, in the time that described target image contains multiple car plate, described in holdThe definite license board information of method recorder can comprise the license board information of all car plates in described target image.
Described license board information can include but not limited to the number-plate number, car plate color, character color etc.
Described memory module 30, for carrying out the license board information obtaining and described target image associated and protectingDeposit.
Described license board information can be stored with the form of text, or also can be by described license board informationInsert in corresponding target image and preserve. Described law-enforcing recorder can be by obtained license board informationCarry out associatedly with described target image, and be saved to memory module. Described law-enforcing recorder can be set up carThe mapping relations list of board information and corresponding target image, and by described license board information, described target imageAnd described mapping relations list is saved to described memory module, consult for law enfrocement official.
Further, described memory module can comprise the storage medium of at least one type, described storageMedium comprise flash memory, hard disk, multimedia card, card type memory (for example, SD or DX memory etc.),Random access storage device (RAM), static random-access memory (SRAM), read-only storage (ROM),Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic are depositedReservoir, disk, CD etc.
Further, described law-enforcing recorder can also comprise sending module; Described sending module, forDescribed target image and corresponding license board information are uploaded to default server. Described server is what presetBe used for the server of video file, the photo files etc. of storing law-enforcing recorder collection. With reference to Fig. 2, Fig. 2For law-enforcing recorder in the present invention and server carry out mutual effect schematic diagram. Described law-enforcing recorderSending module can communicate by wireless communication module and described server, described wireless communication moduleFor the radio communication between law-enforcing recorder and wireless communication system or network, described wireless communication mouldPiece can pass through mobile communication technology, wireless interconnected network technology or short distance wireless communication technology etc. modeImplement; Or the sending module of described law-enforcing recorder also can be connected to described clothes by internal interfaceBusiness device, communicates by data wire and described server.
The present embodiment is by the target image gathering is carried out to car plate identification, and by the license board information identifyingPreservation associated with target image, consults for law enfrocement official, has realized gathering in law-enforcing recorderVideo, photo files in the identification of license board information and the extraction of information, make the law enfrocement official can rootAccording to corresponding license board information fast finding to corresponding image, without screening one by one check corresponding video andPhoto files, greatly facilitates law enfrocement official's investigation, has improved efficiency.
With reference to Fig. 7, the high-level schematic functional block diagram of the second embodiment that Fig. 7 is apparatus of the present invention. Based on above-mentionedThe first embodiment of law-enforcing recorder, described license board information comprises the number-plate number, and, described identification mouldPiece 20 comprises positioning unit 21, extraction unit 22, cutting unit 23 and matching unit 24;
Described positioning unit 21, determines license plate area for passing through to described target image procession scanning;
Described law-enforcing recorder is determined license plate area to described target image procession scanning. Concrete,If search corresponding license plate area in described law-enforcing recorder scanning process, export described license plate areaCoordinate and size; If do not find license plate area in described law-enforcing recorder scanning process, obtain nextTarget image scans.
The process of described law-enforcing recorder procession scanning specifically can realize as follows: to instituteState target image and scan line by line, determine the first candidate region of containing car plate line segment in the row direction,Read initial row coordinate and the height of described the first candidate region, then to described the first candidate region by columnScan, determine that described the first inside, candidate region contains the second candidate of car plate line segment on column directionRegion, reads initial row coordinate and the width of described the second candidate region, according to described initial row coordinate,Described initial row coordinate, described height, described width are determined corresponding license plate area.
Further, described law-enforcing recorder can also be before to the scanning of described target image procession,First described target image is carried out to pretreatment, to adjust the picture quality of described target image and then to improve carThe degree of accuracy of board identification. Concrete, described law-enforcing recorder carries out pretreated process and can comprise and carrying outNoise filtering, AWB, automatic exposure and gamma correction, edge enhancing, contrast adjustment etc.Etc. processing procedure.
Described extraction unit 22, for extracting license plate image in described license plate area;
Described cutting unit 23, for cutting apart and obtain character picture according to character described license plate image;
Described law-enforcing recorder extracts license plate image in described license plate area, and described license plate image is pressedCut apart and obtain character picture according to character. Described law-enforcing recorder can be according to the character in license plate imageSize is carried out Character segmentation according to dynamic template, obtains each character picture. With reference to Fig. 4, Fig. 4 is thisBright middle license plate image is divided into the effect schematic diagram of the preferred embodiment of character picture.
Further, be accurate location character image, described law-enforcing recorder can also be by described car plate figurePicture carries out the processing such as gray processing, gray scale stretching, binaryzation, marginalisation, and license plate image after treatment is enteredLine character dividing processing.
Described matching unit 24, for mating described character picture with default standard character imageTo determine the corresponding number-plate number.
Described law-enforcing recorder mates described character picture with default standard character image, determineThe corresponding number-plate number. Described standard character image can be preset for carrying out the character of character recognitionImage, described standard character image can be kept in the memory module of described law-enforcing recorder.
Concrete, described law-enforcing recorder can by each character picture successively with memory module in standardCharacter picture is compared, if when the similarity of character picture and standard character image reaches predetermined threshold value,Determine that character corresponding to described standard character image is the character that described character picture is corresponding, will identifyCharacter be arranged in order as the corresponding number-plate number.
Further, if described license board information also comprises character color and car plate color, described identification mouldPiece can also comprise reading unit; Described reading unit is corresponding for reading according to described license plate imageCharacter color and character are with the car plate color of exterior domain. Described character color is car plate in described license plate imageThe color of number, described car plate color be in described license plate image the number-plate number with the color of exterior domain.
The present embodiment is determined license plate area by the target image procession scanning to camera collection, andLicense plate image in license plate area is carried out to Character segmentation, character picture and standard character image are comparedTo determining the corresponding number-plate number, realize the identification to the license board information in target image, make law enforcementRecorder can, by target image and contained associated preservation of license board information thereof, be looked into for law enfrocement officialRead, realized identification and the letter of the license board information in video, the photo files to gathering in law-enforcing recorderThe extraction of breath, makes law enfrocement official to arrive corresponding image according to corresponding license board information fast finding,Without screening and check corresponding video and photo files one by one, greatly facilitate law enfrocement official's investigation workDo, improved law enforcement efficiency.
With reference to Fig. 8, the high-level schematic functional block diagram of the 3rd embodiment that Fig. 8 is apparatus of the present invention. Based on above-mentionedThe first embodiment of law-enforcing recorder, described law-enforcing recorder also comprises retrieval module 40 and display module 50;
Described retrieval module 40, in the time receiving search instruction, provides search interface defeated for userEnter license board information;
Described law-enforcing recorder, in the time receiving search instruction, provides search interface to supply user based on described inspectionRope interface input license board information, described license board information can be part license board information, for example: car plate color,Number-plate number etc. It is right that the part license board information that described law-enforcing recorder can be inputted by user findsThe target image of answering and the license board information completing. For example: described law-enforcing recorder can be inputted according to userThe number-plate number, find all target images that contain the described number-plate number, and the described number-plate numberCorresponding car plate color, character color etc. information.
Described search interface is for inputting license board information for user, and described law-enforcing recorder can be according to userInput license board information inquire about target image corresponding to described license board information, should be understood that, according to timeBetween multiple continuous target images also can form the video that contains described license board information.
Described law-enforcing recorder can be provided for the physical button of information retrieval, is detecting based on describedWhen the button operation of physical button, trigger described search instruction; Or described law-enforcing recorder is also passableBe provided for the shortcut icon of information retrieval, in the time of the touch operation detecting based on described shortcut icon,Trigger described search instruction.
Described retrieval module 40, also for searching corresponding target image according to the license board information of user's input;
Described display module 50, shows for the target image to found and corresponding license board informationShow.
Described law-enforcing recorder is searched corresponding target image according to the license board information of user's input; Described holdingMethod recorder can show found target image and corresponding complete car plate letter by display moduleBreath. Described law-enforcing recorder can be searched correspondence according to license board information and the mapping relations list of user's inputTarget image, described mapping relations list is that law-enforcing recorder gathers the car plate letter of preserving when target imageCease the mapping relations list with corresponding target image.
Further, described law-enforcing recorder also can be by determined license board information and described target imageCarry out association, and be saved to the memory module of described law-enforcing recorder, described law-enforcing recorder is by described orderPicture and the corresponding license board information of marking on a map is uploaded to default server; Described law-enforcing recorder is receiving retrievalWhen instruction, provide search interface to input license board information for user, described law enforcement record is inputted according to userLicense board information from target image corresponding to described whois lookup, and show the target image that findsAnd corresponding complete license board information.
The present embodiment is by providing search interface to input license board information for user, and the car of inputting according to userThe target image that board information searching is corresponding and complete license board information, and show, realize law enforcementThe Classification Management of the target image that recorder gathers, can check soon by license board information law enfrocement official quicklyAsk corresponding target image and complete license board information, without screening and check corresponding video and photo literary composition one by onePart, greatly facilitates law enfrocement official's investigation, has improved efficiency.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variantBe intended to contain comprising of nonexcludability, thus make to comprise a series of key elements process, method, article orPerson's device not only comprises those key elements, but also comprises other key elements of clearly not listing, or alsoBe included as the intrinsic key element of this process, method, article or device. There is no the feelings of more restrictionsUnder condition, by statement " comprising ... " limit key element, and be not precluded within comprise this key element process,In method, article or device, also there is other identical element.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be well understood to above-mentionedThe mode that embodiment method can add essential general hardware platform by software realizes, and can certainly lead toCross hardware, but in a lot of situation, the former is better embodiment. Based on such understanding, of the present inventionThe part that technical scheme contributes to prior art in essence in other words can be with the form body of software productReveal to come, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, lightDish) in, (can be mobile phone, computer, serves in order to make a station terminal equipment to comprise some instructionsDevice, air-conditioner, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, everyUtilize equivalent structure or the conversion of equivalent flow process that description of the present invention and accompanying drawing content do, or directly orConnect and be used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the information collecting method based on law-enforcing recorder, is characterized in that, described based on law enforcement noteThe information collecting method of record instrument comprises the following steps:
Law-enforcing recorder obtains the target image of camera collection;
Described law-enforcing recorder carries out car plate identification to described target image and obtains corresponding license board information;
Described law-enforcing recorder carries out the license board information obtaining and described target image associated and preserves.
2. the information collecting method based on law-enforcing recorder as claimed in claim 1, is characterized in that,Described license board information comprises the number-plate number, and described law-enforcing recorder carries out car to described target imageThe step that board identification obtains corresponding license board information comprises:
Described law-enforcing recorder is by determining license plate area to described target image procession scanning;
Described law-enforcing recorder extracts license plate image in described license plate area;
Described law-enforcing recorder is cut apart and is obtained character picture according to character described license plate image;
Described law-enforcing recorder mates described character picture to determine with default standard character imageThe corresponding number-plate number.
3. the information collecting method based on law-enforcing recorder as claimed in claim 2, is characterized in that,Described license board information also comprises character color and car plate color, and described law-enforcing recorder is by described wordAfter symbol image mates to determine the step of the corresponding number-plate number with default standard character image,Also comprise:
Described law-enforcing recorder reads corresponding character color and character with exterior domain according to described license plate imageCar plate color.
4. the information collecting method based on law-enforcing recorder as claimed in claim 1, is characterized in that,Described law-enforcing recorder by the license board information obtaining and described target image carry out associated and preserve step itAfter, also comprise:
In the time receiving search instruction, described law-enforcing recorder provides search interface to input car plate for userInformation;
Described law-enforcing recorder is searched corresponding target image according to the license board information of user's input;
Described law-enforcing recorder shows found target image and corresponding license board information.
5. the information collecting method based on law-enforcing recorder as described in claims 1 to 3 any one, itsBe characterised in that, described law-enforcing recorder carries out the license board information obtaining and described target image associated and protectsAfter the step of depositing, also comprise:
Described target image and corresponding license board information are uploaded to default server by described law-enforcing recorder.
6. a law-enforcing recorder, is characterized in that, described law-enforcing recorder comprises:
Acquisition module, for obtaining the target image of camera collection;
Identification module, obtains corresponding license board information for described target image being carried out to car plate identification;
Memory module, for carrying out the license board information obtaining and described target image associated and preserving.
7. law-enforcing recorder as claimed in claim 6, is characterized in that, described license board information comprises carTrade mark code, and described identification module comprises that positioning unit, extraction unit, cutting unit and coupling are singleUnit;
Described positioning unit, determines license plate area for passing through to described target image procession scanning;
Described extraction unit, for extracting license plate image in described license plate area;
Described cutting unit, for cutting apart and obtain character picture according to character described license plate image;
Described matching unit, for described character picture is mated with default standard character image withDetermine the corresponding number-plate number.
8. law-enforcing recorder as claimed in claim 7, is characterized in that, described license board information also comprisesCharacter color and car plate color, and described identification module also comprises reading unit;
Described reading unit, for reading beyond corresponding character color and character according to described license plate imageThe car plate color in region.
9. law-enforcing recorder as claimed in claim 6, is characterized in that, described law-enforcing recorder also wrapsDraw together retrieval module and display module;
Described retrieval module, in the time receiving search instruction, provides search interface to input for userLicense board information;
Described retrieval module, also for searching corresponding target image according to the license board information of user's input;
Described display module, shows for the target image to found and corresponding license board information.
10. the law-enforcing recorder as described in claim 6 to 8 any one, is characterized in that, described in holdMethod recorder also comprises sending module;
Described sending module, for being uploaded to default service by described target image and corresponding license board informationDevice.
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| CN201510953577.9A CN105590113A (en) | 2015-12-16 | 2015-12-16 | Information-acquiring method based on law enforcement recorder |
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| CN201510953577.9A CN105590113A (en) | 2015-12-16 | 2015-12-16 | Information-acquiring method based on law enforcement recorder |
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Application publication date: 20160518 |