CN103198327A - Open type scene-oriented entrance and exit population counting method and device - Google Patents
Open type scene-oriented entrance and exit population counting method and device Download PDFInfo
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- CN103198327A CN103198327A CN2013101473525A CN201310147352A CN103198327A CN 103198327 A CN103198327 A CN 103198327A CN 2013101473525 A CN2013101473525 A CN 2013101473525A CN 201310147352 A CN201310147352 A CN 201310147352A CN 103198327 A CN103198327 A CN 103198327A
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Abstract
The invention discloses an open type scene-oriented entrance and exit population counting method and device. The method comprises the following steps of: arranging a shoeprint collection plate with a camera device at an entrance and exit for acquiring original shoeprint pictures; extracting shoeprints; comparing each shoeprint with shoeprints in a preset time window, if the shoeprint does not exist in the time window, adding 1 to a population counting number in the corresponding direction, storing the shoeprint, and stepping into the next step, otherwise, keeping the population counting number in the corresponding direction unchanged; and comparing each shoeprint with shoeprints stored within a population counting time period, and if the shoeprint does not exist in the population counting time period, adding 1 into the population counting number, otherwise, keeping the population counting number unchanged. The invention is suitable for counting the population at the entrance and exit in the open type scene; the problem of shading of groups can be solved, and the same person can be identified; the population of people getting into and getting out of the entrance and exit can be simultaneously counted; and the environment adaptability is high.
Description
Technical field
The present invention relates to the improvement of gateway demographics technology, specifically refer to a kind of based on footwear seals gather identification, towards gateway demographic method and the device of open scene, belong to gateway demographics technical field.
Background technology
There are the needs of demographics in many open scenes, and the gateway of prologue scene has following characteristics: do not have identify label (for example: I.D., admission ticket etc.) by personnel; Quantity by personnel is bigger, may have crowded situation; The gateway does not separate, and there are the personnel that enter, leave simultaneously in same mouth, and for example: the gateway in market, school, the park that is free of charge is the open scene of this class gateway.
Current solution for gateway people's counting number mainly contains following three kinds: people's counting number of gathering based on ccd image, based on ultrared people's counting number with based on people's counting number of pressure transducer.
One, waits that by the ccd video camera collection the several of the crowd of counting scheme, and use the number in the mode identification technology statistical picture then based on the number method of counting of ccd image collection.For example patent " a kind of counting number of people in car method and system (patent No.: 200810241953.1) ", " counter for person number at exit and entrance (patent No.: 200510025186.7) ".The shortcoming of this kind method has: can't solve occlusion issue fully, be difficult to solve the identified problems of same portrait in the multiple image, and very responsive to illumination variation, stablize relatively poor.
Two, use the crowd of red light irradiation identification counting based on ultrared number method of counting, calculate personnel's quantity according to ultrared reflection.For example: " a kind of automatic people's counter (patent No.: 201020534026.1) ", " people's counter (patent No.: 200420076313.7) ", " based on heat release infrared sensor people's counter implement device (patent No.: 201120083814.8) ".The shortcoming of this kind method has: because the characteristic of infrared ray rectilinear propagation, can't accurate counting for overlapping crowd of blocking, though patent " based on heat release infrared sensor people's counter implement device (patent No.: 201120083814.8) " " and utilize infrared ray that lens send the human body on the plane through lens imaging on straight line; utilize a plurality of heat to release the detector that infrared sensor is formed; to see at detector to form several hot spots; i.e. expression has several biosomes simultaneously by this plane ", part has solved occlusion issue, but still can't accurate counting when crowded.
Three, the number method of counting based on pressure transducer uses the pedal that pressure transducer is housed, and pressure becomes big when setting foot on the people, and the output count pulse adds 1 by counter.For example: patent " people from library counter (patent No.: 201220001432.0) " adopt gravity sensing device testing staff to pass through, and two gravity sensing devices are set, according to the sequencing testing staff's who touches the Inbound that goes out.The problem of this patent has: can only be single by the gateway, if many people walk abreast by then can't count, this method can't be applied to people's counting number of some open scenes such as market, station.
Summary of the invention
At the prior art above shortcomings, the purpose of this invention is to provide a kind of method and apparatus that is applicable to people from gateway counting number in the open scene.The present invention can solve the problem that the discrepancy crowd is blocked mutually, same personnel repeat to identify, and can add up discrepancy personnel's quantity simultaneously, to good environmental adaptability.
The means that the present invention solves the problems of the technologies described above are as follows:
Gateway demographic method towards open scene the steps include:
1) footwear seal collection plate at first is set in the gateway, the size of footwear seals collection plate with gateway size coupling so that the crowd must step down in footwear during by the gateway prints on the collection plate, described footwear seal collection plate comprises transparent pedal and is positioned at the camera head of pedal below, when the people sets foot on pedal, can produce a downward pressure, when pressure during greater than setting value, camera head starts automatically, can take the current pedal picture that is printed on the footwear watermark image;
2) the pedal picture that camera head is taken is handled, and the footwear seal that wherein comprises is accurately extracted;
3) printing to identical footwear with this footwear India side in the footwear that extract seal and the predefined time window compared, if this footwear seal not in this time window, then be effective counting once, the counterparty to stream of people's statistical number add 1, simultaneously this footwear seal is preserved and enters the 4th) go on foot; Otherwise the counterparty to stream of people's statistical number constant;
4) the footwear seal that this footwear seal and demographics were preserved in the time period compares, if demographics this footwear seal not in the time period, then the demographics number adds 1; Otherwise the demographics number is constant;
5) repeating step 2)-4), can realize the statistics of the gateway stream of people and number.
The 3rd) step and the 4th) going on foot footwear seal comparative approach is, the footwear seal is divided into four coupling key elements by length, width, outline and texture, have only when two footwear seal four elements similarity reaches the setting degree respectively, just think same footwear seal, otherwise be different footwear seals.
The 2nd) going on foot footwear seal extracting method is: at first the pedal picture is comprised the pre-service of light compensation and binaryzation shift means, again by three steps such as gray scale transformation, grey level histogram calculating, histogram equalization filter out less than with noise greater than predetermined value, to remove the interference stain on the pedal picture; Then according to four characteristic exponents such as profile, size, texture and geometric configuration that set in advance pretreated pedal picture is carried out the thick extraction of footwear seal, various sample footwear seals in the footwear seal that will slightly extract again and the predefined sample database are compared, and the footwear seal miscellaneous on the pedal picture extracts the most at last.
Gateway demographics device towards open scene, comprise footwear seal collection plate, footwear seal recognition system and number system, described footwear seal collection plate comprises base plate and is positioned at pedal transparent on the base plate, the base plate middle part is provided with for the camera head of gathering the footwear seal, camera head is towards pedal, be distributed with some pressure transducers between base plate and pedal, the output of all pressure transducers connects camera head, is used for starting when detecting pressure greater than setting value camera head; The output of camera head connects footwear seal recognition system, carry out processing and identification according to this image that camera head is sent of the footwear pull in the sample database and the footwear seal is extracted by footwear seals recognition system, the output of footwear seal recognition system connects number system, is counted according to the counting condition of setting by number system.
The present invention prints statistician's quantity by gathering footwear, can be applicable to that statistics is opened to the personnel amount that entrance passes through.Compared to existing technology, the present invention has following advantage:
1, the present invention can the statistician side by side, the number under the congested conditions, can effectively solve the problem of blocking.
2, the invention solves the problem of same personnel's sign.Personnel stay a plurality of continuous footwear by footwear seal collection plate and print to identify same individual, and the picture quality of footwear seal is higher, and whether can identify comparatively exactly is same individual, can better avoid repeat count or leak meter.
3, the invention solves out the problem of Inbound identification.In open gateway, though the personnel that go out, go into exist, the same set of equipment of the present invention can be easy to the personnel's that identify the Inbound that goes out by the fore-and-aft direction of footwear seal, so the quantity that can add up the discrepancy personnel simultaneously.
4, the present invention has adaptability preferably to environment.Footwear seal collection plate starts camera head by pressure, insensitive to illumination, temperature, personnel's weight, therefore can effectively overcome illumination, temperature, personnel's weight to the influence of counting, can adapt to various environment preferably, higher robustness is arranged, accurately statistician's quantity.
Description of drawings
Fig. 1-system schematic of the present invention.
Fig. 2-footwear seal collection plate vertical cross section of the present invention.
Fig. 3-outside the synoptic diagram of footwear seal collection plate of the present invention.
Fig. 4-pressure transducer of the present invention and camera head arrange synoptic diagram on base plate.
The basic flow sheet of Fig. 5-footwear seal recognition system of the present invention.
Fig. 6-overall workflow figure of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Purpose of the present invention is passed through flow for the personnel that add up open scene gateway, gather the footwear seal by the gateway personnel earlier, again in footwear seals and the system the footwear seal by personnel compare, to identify the personnel that newly enter, by the personnel that newly enter are counted, to reach the purpose of statistician's flow.The present invention is specially adapted to gateway number enumeration problem in the open scene, the quantity of passing through of for example adding up subway station gateway or doorway, market personnel.
The present invention is in the face of the gateway demographic method of open scene, and its step is (please in conjunction with Fig. 6):
1) footwear seal collection plate at first is set in the gateway, so that the crowd must step down on the footwear seal collection plate during by the gateway, this footwear seal collection plate can record the servant and step down in the footwear seal that stays above and can identify the direction that footwear print the size of footwear seals collection plate with gateway size coupling; Specifically, described footwear seal collection plate comprises transparent pedal and is positioned at the camera head (camera that several pixels are higher) of pedal below, when the people sets foot on pedal, can produce a downward pressure, when pressure during greater than setting value, camera head starts automatically, can take the current pedal picture that is printed on the footwear watermark image;
2) when the people passes through the gateway, start camera head because trampling pressure, can obtain a pedal picture; The pedal picture is handled, so that the footwear seal is extracted.Footwear seal extracting method is specially: at first the pedal picture is comprised the pre-service of light compensation and binaryzation shift means, again by three steps such as gray scale transformation, grey level histogram calculating, histogram equalization filter out less than with noise greater than predetermined value, to remove the interference stain on the pedal picture, clean footwear impression sheet is given next step footwear seal identification module and accurately identified; Then according to characteristic exponents such as the profile that sets in advance, size, texture, geometric configuratioies pretreated pedal picture is carried out the thick extraction of footwear seal, various sample footwear seals in the footwear seal that will slightly extract again and the predefined sample database are compared, and the footwear seal miscellaneous on the pedal picture extracts the most at last.
3) printing to identical footwear with this footwear India side in the footwear that extract seal and the predefined time window compared, if this footwear seal not in this time window, then be effective counting once, the counterparty to stream of people's statistical number add 1, simultaneously this footwear seal is preserved and enters the 3rd) go on foot; Otherwise the counterparty to stream of people's statistical number constant; In the time of relatively, except printing to identical footwear with this footwear India side in footwear seals and the predefined time window compared, also need the relatively mirror image footwear seal of this footwear seal, if this footwear seal is left foot, mirror image footwear seal is right crus of diaphragm so, so just can be classified as same footwear seal to same individual left and right sides pin footwear seal and handle, avoid repeat count.Perhaps also can relatively count respectively left right shoe seal, half of statistics is the actual count result.
4) the footwear seal that this footwear seal and demographics were preserved in the time period compares, if demographics this footwear seal not in the time period, then the demographics number adds 1; Otherwise the demographics number is constant.
5) repeating step 2)-4), can realize the statistics of the gateway stream of people and number.
The 3rd) step and the 4th) going on foot footwear seal comparative approach is, the footwear seal is divided into four comparison elements by length, width, outline and texture, have only when two footwear seal four elements similarity reaches setting degree (value) respectively, just think same footwear seal, otherwise be different footwear seals.
Referring to Fig. 1, the open scene of the present invention gateway demographics device, it comprises footwear seal collection plate, footwear seal recognition system and number system, described footwear seal collection plate comprises base plate 1 and is positioned at pedal 2(transparent on the base plate as being organic tempered glass of the printing opacity of thickening), base plate 1 middle part is provided with for the camera head 3 of gathering the footwear seal, camera head 3 is towards pedal 2, between base plate 1 and pedal 2, be distributed with some pressure transducers 4, the output of all pressure transducers 4 connects camera head 3, and being used for starting camera head 3(automatically when detecting pressure greater than setting value please be simultaneously referring to Fig. 2, Fig. 3 and Fig. 4).Pressure can be avoided the meaningless startup of camera head greater than setting value.The output of camera head connects footwear seal recognition system, the image that camera head is sent by footwear seals recognition system carries out pre-service and the footwear seal is further extracted, the output of footwear seal recognition system connects number system, by the footwear printing certificate of number system analysis from footwear seal recognition system, count according to the counting condition of setting, the quantity of the different footwear seals of accumulative total, this quantity is exactly the number of passing through.
Described footwear seal collection plate also comprises a frame, and base plate and pedal are positioned at frame.For fear of air light being produced refraction, and then cause illumination to the influence of footwear watermark image, is vacuum 5 between base plate and the pedal.
The present invention utilizes the method for pattern-recognition to prepare to extract the number that footwear print to count entrance, its basic thought is: (1) arranges footwear seal collection plate (comprising transparent pedal and the camera head that is positioned at the pedal below) in the gateway, the size of footwear seals collection plate with gateway size coupling so that the crowd must step down in footwear during by the gateway prints on the collection plate, when setting foot on pedal, the people can produce a downward pressure, when pressure during greater than setting value camera head start automatically, can take the current pedal picture that is printed on the footwear watermark image, this footwear seal collection plate can record the servant and step down in the footwear seal that stays above and the direction that can identify the footwear seal.(2) the pedal picture is comprised the pre-service of light compensation and binaryzation shift means, again by three steps such as gray scale transformation, grey level histogram calculating, histogram equalization filter out less than with noise greater than predetermined value, remove the interference stain on the pedal picture, clean footwear impression sheet is given next step footwear seal identification module and accurately identified; Then according to characteristic exponents such as the profile that sets in advance, size, texture, geometric configuratioies pretreated pedal picture is carried out the thick extraction of footwear seal, various sample footwear seals in the footwear seal that will slightly extract again and the predefined sample database are accurately compared, and the footwear seal miscellaneous on the pedal picture extracts the most at last.Basic procedure such as Fig. 5 of footwear seal recognition system.(3) printing to identical footwear with this footwear India side in the footwear that extract seal and the predefined time window compared, if this footwear seal then for once effectively counting not in this time window, the counterparty to stream of people's statistical number add 1, simultaneously this footwear seal is preserved, otherwise the counterparty to stream of people's statistical number constant; Except printing to identical footwear with this footwear India side in footwear seals and the predefined time window compared, also need the relatively mirror image footwear seal of this footwear seal, if this footwear seal is left foot, mirror image footwear seal is right crus of diaphragm so, so just can be classified as same footwear seal to same individual left and right sides pin footwear seal and handle, avoid repeat count.
In order to guarantee effective collection of footwear seal, the length of pedal can not be less than 3 times by the possible maximum step-length of personnel, suggestion is no less than 3 meters, like this someone by the time to stay three footwear seal at least in the above, even wherein indivedual footwear seals can not effectively be identified, also can guarantee to have at least one can be identified, thereby reach accurate identifying purpose.The width of pedal is not less than by the possible maximum step of personnel wide.
Number system prints effective footwear seal that recognition system sends with footwear and compares with footwear seal in the fixed time window, if the footwear seal is emerging footwear seal, then stream of people's statistical number adds 1, otherwise stream of people's statistical number is constant; If emerging footwear seal then with the fixed time section in the footwear seals (history library) preserved of system relatively, if history library is not deposited this footwear seal, then the demographics number adds 1, otherwise the demographics number is constant.Time window is slightly larger than the people that walks the slowest by the time of footwear seal collection plate, can also can be arranged by system's automatic dynamic by artificial appointment.Stream of people's statistical number refers to the number passed through, if a people by twice, also repeat count.The people's that the demographics number passes through in referring at the appointed time number, at the appointed time in repeat count not.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. towards the gateway demographic method of open scene, it is characterized in that: the steps include:
1) footwear seal collection plate at first is set in the gateway, the size of footwear seals collection plate with gateway size coupling so that the crowd must step down in footwear during by the gateway prints on the collection plate, described footwear seal collection plate comprises transparent pedal and is positioned at the camera head of pedal below, when the people sets foot on pedal, can produce a downward pressure; When pressure during greater than setting value, camera head starts automatically, can take the current pedal picture that is printed on the footwear watermark image;
2) the pedal picture that camera head is taken is handled, and the footwear seal that wherein comprises is extracted;
3) printing to identical footwear with this footwear India side in the footwear that extract seal and the predefined time window compared, if this footwear seal not in this time window, then be effective counting once, the counterparty to stream of people's statistical number add 1, simultaneously this footwear seal is preserved and enters the 4th) go on foot; Otherwise the counterparty to stream of people's statistical number constant;
4) the footwear seal that this footwear seal and demographics were preserved in the time period compares, if demographics this footwear seal not in the time period, then the demographics number adds 1; Otherwise the demographics number is constant;
5) repeating step 2)-4), can realize the statistics of the gateway stream of people and number.
2. the gateway demographic method towards open scene according to claim 1, it is characterized in that: the described the 3rd) step and the 4th) going on foot footwear seal comparative approach is, the footwear seal is divided into four coupling key elements by length, width, outline and texture, have only when two footwear seal four elements similarity reaches the setting degree respectively, just think same footwear seal, otherwise be different footwear seals.
3. the gateway demographic method towards open scene according to claim 1, it is characterized in that: the described the 2nd) going on foot footwear seal extracting method is: at first the pedal picture is comprised the pre-service of light compensation and binaryzation shift means, again by three steps such as gray scale transformation, grey level histogram calculating, histogram equalization filter out less than with noise greater than predetermined value, to remove the interference stain on the pedal picture; Then according to four characteristic exponents such as profile, size, texture and geometric configuration that set in advance pretreated pedal picture is carried out the thick extraction of footwear seal, various sample footwear seals in the footwear seal that will slightly extract again and the predefined sample database are compared, and the footwear seal miscellaneous on the pedal picture extracts the most at last.
4. towards the gateway demographics device of open scene, it is characterized in that: it comprises footwear seal collection plate, footwear seal recognition system and number system, described footwear seal collection plate comprises base plate (1) and is positioned at pedal transparent on the base plate (2), base plate (1) middle part is provided with for the camera head (3) of gathering the footwear seal, camera head is towards pedal, between base plate and pedal, be distributed with some pressure transducers (4), the output of all pressure transducers (4) connects camera head (3), is used for starting when detecting pressure greater than setting value camera head; The output of camera head connects footwear seal recognition system, the image that camera head is sent by footwear seals recognition system carries out processing and identification and the footwear seal is extracted, the output of footwear seal recognition system connects number system, is counted according to the counting condition of setting by number system.
5. the gateway demographics device towards open scene according to claim 4 is characterized in that: described footwear seal collection plate also comprises a frame, and base plate and pedal are positioned at frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310147352.5A CN103198327B (en) | 2013-04-25 | 2013-04-25 | Gateway demographic method and device towards open scene |
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| CN201310147352.5A CN103198327B (en) | 2013-04-25 | 2013-04-25 | Gateway demographic method and device towards open scene |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105005565A (en) * | 2014-04-18 | 2015-10-28 | 大连恒锐科技股份有限公司 | Onsite sole trace pattern image retrieval method |
| CN106462881A (en) * | 2014-05-19 | 2017-02-22 | 霍斯顿分析有限公司 | System and method for determining demographic information |
| CN106568439A (en) * | 2016-04-08 | 2017-04-19 | 中国人民解放军理工大学 | Placing guiding method based on shoeprint recognition |
| CN107729804A (en) * | 2017-08-31 | 2018-02-23 | 广东数相智能科技有限公司 | A kind of people flow rate statistical method and device based on garment ornament |
| CN110853200A (en) * | 2019-11-29 | 2020-02-28 | 河南职业技术学院 | Device for limiting number of people in closed occasions |
| CN110866933A (en) * | 2019-10-28 | 2020-03-06 | 淮安信息职业技术学院 | People flow information statistical system and method based on cloud computing |
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| EP0992949A2 (en) * | 1998-09-22 | 2000-04-12 | Eliop S.A. | People counting system by pressure images |
| CN1744070A (en) * | 2004-09-03 | 2006-03-08 | 上海浩孚通信科技有限公司 | Public traffic vehicle passenger-flow counting method and system |
| CN101425128A (en) * | 2007-10-30 | 2009-05-06 | 同济大学 | People stream detecting method based on laser sensor depth image |
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2013
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Patent Citations (3)
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| EP0992949A2 (en) * | 1998-09-22 | 2000-04-12 | Eliop S.A. | People counting system by pressure images |
| CN1744070A (en) * | 2004-09-03 | 2006-03-08 | 上海浩孚通信科技有限公司 | Public traffic vehicle passenger-flow counting method and system |
| CN101425128A (en) * | 2007-10-30 | 2009-05-06 | 同济大学 | People stream detecting method based on laser sensor depth image |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005565A (en) * | 2014-04-18 | 2015-10-28 | 大连恒锐科技股份有限公司 | Onsite sole trace pattern image retrieval method |
| CN106462881A (en) * | 2014-05-19 | 2017-02-22 | 霍斯顿分析有限公司 | System and method for determining demographic information |
| CN106462881B (en) * | 2014-05-19 | 2021-01-26 | 霍斯顿分析有限公司 | System and method for determining demographic information |
| CN106568439A (en) * | 2016-04-08 | 2017-04-19 | 中国人民解放军理工大学 | Placing guiding method based on shoeprint recognition |
| CN106568439B (en) * | 2016-04-08 | 2022-03-18 | 中国人民解放军理工大学 | Location guiding method based on shoe print recognition |
| CN107729804A (en) * | 2017-08-31 | 2018-02-23 | 广东数相智能科技有限公司 | A kind of people flow rate statistical method and device based on garment ornament |
| CN110866933A (en) * | 2019-10-28 | 2020-03-06 | 淮安信息职业技术学院 | People flow information statistical system and method based on cloud computing |
| CN110853200A (en) * | 2019-11-29 | 2020-02-28 | 河南职业技术学院 | Device for limiting number of people in closed occasions |
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| CN103198327B (en) | 2016-12-28 |
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