CN109886069B - Iris recognition acquisition device based on animal management system and acquisition method using device - Google Patents
Iris recognition acquisition device based on animal management system and acquisition method using device Download PDFInfo
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Abstract
The invention relates to an iris recognition acquisition device based on an animal management system, which comprises an optical axis, a mark symbol and iris recognition equipment. The method for shooting and obtaining the animal iris image is realized by the mutual matching of the mark symbols and the iris recognition equipment which are respectively positioned at the two ends of the optical axis. In the use, iris recognition equipment utilizes the mark sign of laminating, can order about to be shot animal eyes place plane and iris shooting camera formation of image optical axis perpendicular for iris shooting camera can be in best shooting angle and best shooting position in shooting process, reaches to improve iris image and inputs and discerns efficiency and is input iris image quality. The iris recognition acquisition method provided by the invention adopts the steps of positioning firstly, then adjusting the position and angle and adjusting the focal length, so that the effects of simplicity in operation and convenience in use are achieved.
Description
[ field of technology ]
The present invention relates to an iris recognition technology, and more particularly, to an iris recognition acquisition device based on an animal management system and an iris recognition acquisition method using the same.
[ background Art ]
With the continuous improvement of consumer living standard, leisure and recreation have become a part of the life of a wide range of consumers. However, the pet brings endless joy to the pet owner, so that the pet entertainment is already a part of the leisure entertainment of the consumers. At the same time, pets are becoming more and more popular. However, since pets lack effective supervision means for a long time, a certain pressure is brought to supervision departments, pet owners and resident lives. To solve this social problem, it is necessary to build a pet information management system, and pet identification is a key problem of the information management system. The biotechnological feature identification has the advantages of good safety, no harm, uniqueness and stability, so that the biotechnological feature identification is accepted by wide consumers and pet owners. Biotechnological feature identification refers to the use of physiological or behavioral features of a person or animal to achieve identity identification. The biotechnology characteristic recognition technology mainly comprises face recognition, fingerprint recognition, vein recognition, iris recognition, palm print recognition, voiceprint recognition, gait recognition and the like. The iris recognition technology has extremely high accuracy, high anti-counterfeiting performance and high stability, and is also reliable biotechnology characteristics of acquirability and non-invasiveness, so that the iris recognition technology is valued by people in the world and is rapidly and widely developed and applied. In order to facilitate the management of pets by consumers, an animal management system based on iris recognition is developed later. The animal management system comprises an iris acquisition handset end and a cloud server which is connected with the iris acquisition handset end in real time or used for data exchange in a wireless communication mode. The iris acquisition handset end comprises an acquisition module, a wireless communication module, a processor, an illumination module and an output or input module. The acquisition module acquires iris graphic information from eyes of the pet, transmits the iris graphic information to the inside of the processor after being processed, and transmits the iris graphic information to the inside of the cloud server through the wireless communication module, the cloud server compares and analyzes the newly received iris graphic information with iris graphic information stored in the inside of the cloud server, and if the iris image information is consistent with the iris image information, the newly acquired iris graphic information is updated or modified through the input or output module so as to be convenient for subsequent use. In the acquisition process of the acquisition module, as the photographed animal has the nature of being active, the rotation of the brain of the animal is flexible and is not easy to control, so that the angle between eyes of the photographed animal and a camera is larger, and the input and recognition effects of iris image information acquired by the acquisition module are extremely poor. Meanwhile, the eyes of the photographed animal are not in the photographed focal length accessory, so that the iris image collected by the collecting module is extremely blurred.
[ invention ]
In view of the above, the technical problem to be solved by the present invention is to provide an iris recognition acquisition device based on an animal management system, which has the advantages of improving the iris image input and recognition efficiency and improving the quality of the input iris image.
The invention aims to provide an iris recognition acquisition method based on an animal management system, which is simple to operate and convenient to use.
The technical scheme of the invention adopts an iris recognition acquisition device based on an animal management system, which comprises an optical axis, a mark symbol and iris recognition equipment; the method is characterized in that: the method for shooting and obtaining the iris image inside the animal eyes is realized by mutually matching the mark symbols and the iris recognition equipment which are respectively positioned at the two ends of the optical axis.
Further defined, the iris recognition device comprises an iris shooting camera, infrared illuminators respectively positioned at the periphery of the iris shooting camera, a software processing system connected with one side of the iris shooting camera, and a display device connected with the other end of the software processing system.
Further defined, the marking symbols include triangular marks, square marks, circular marks and cross marks.
Further defined, the cross mark includes a base plate disposed at the bottom, and a cross frame plate disposed above the base plate.
Further defined, the cross frame plate is formed by intersecting a transverse plate and a longitudinal plate; the cross frame plate divides the base plate into an upper left azimuth plane, an upper right azimuth plane, a lower left azimuth plane and a lower right azimuth plane.
An iris recognition acquisition device based on an animal management system is adopted, and an iris recognition acquisition method based on the animal management system is adopted, and the iris recognition acquisition method comprises the following steps:
firstly, fixing a mark symbol at a position above eyes of an animal, then fixing iris recognition equipment at a position right in front of the mark symbol, wherein the mark symbol and the iris recognition equipment are located on the same optical axis together, so that a shot mark symbol display surface is displayed in the iris recognition equipment in real time; the marking symbol adopts cross marking as an example;
secondly, finding a cross center point of the cross of the transverse plate and the longitudinal plate in the mark symbol, finding a cross center point on a cross inside the display surface of the mark symbol, and then moving the cross center point on the mark symbol to the direction of the cross center point so as to drive the cross center point to coincide with the two points of the cross center point to form a coincident center point;
the third step, the horizontal board in the horizontal direction in the mark symbol is moved to be mutually overlapped with the horizontal base line in the mark symbol display surface by taking the overlapped center point as the center, then the angle of the iris recognition equipment which is aligned with the plane of the cross mark is adjusted, so that the image in the iris recognition equipment can only see the upper left azimuth plane, the upper right azimuth plane or the lower left azimuth plane and the lower right azimuth plane, and the surfaces of the two side surfaces of the horizontal board can not be seen, the horizontal board on the mark symbol is vertical to the horizontal base line of the mark symbol display surface, and the horizontal board is mutually vertically overlapped with the horizontal base line;
a fourth step of moving a longitudinal plate in the mark symbol and a longitudinal base line in a mark symbol display surface to coincide with each other by taking the coincidence center point as a center, and then adjusting the angle of the iris recognition device, which is aligned to the plane of the cross mark, so that an image in the iris recognition device can only see an upper left azimuth plane, an upper right azimuth plane, a lower left azimuth plane and a lower right azimuth plane, wherein the surfaces of the two sides of the longitudinal plate cannot be seen in independent areas; so that the longitudinal plate is perpendicular to the longitudinal base line of the marker symbol display surface; the longitudinal plate is overlapped with a longitudinal base line of the mark symbol display surface; thus, the center is formed by overlapping the cross center point with the cross center point, the longitudinal plate being overlapped with the longitudinal base line; the transverse plate is mutually overlapped with the transverse base line, and the cross mark is mutually overlapped with the cross;
fifthly, calculating the display distance from the iris recognition equipment to the mark symbol arranged on the animal eye according to the image outline of the mark symbol and the cross which are mutually overlapped, the pixel occupied by the image outline and the optical parameter of the system, and adjusting the distance between the iris recognition equipment and the animal according to the display distance and the focal length of the optical system; and if the display distance is larger than the focal distance, the iris recognition device is close to the eyes of the animal, otherwise, the iris recognition device is far away from the eyes of the animal until the requirements set by the iris recognition device are met.
The beneficial technical effects of the invention are as follows: the technical scheme realizes the purpose of shooting and obtaining the animal iris image by mutually matching the mark symbols and the iris recognition equipment which are respectively positioned at the two ends of the optical axis. In the shooting process, the iris recognition equipment utilizes the cross mark attached to the recognized animal eyes, can drive the plane where the animal eyes are located to be perpendicular to the imaging optical axis of the iris shooting camera, and avoids the phenomenon that the recognition effect is reduced or can not be recognized due to the fact that the recognized glasses body deviates from the optical axis by a certain angle in the prior art, so that the iris shooting camera can be in an optimal shooting angle and an optimal shooting position in the shooting process, the iris recognition equipment can be favorable for shooting iris image information with high definition, and the iris image input and recognition efficiency is improved. Meanwhile, the photographed eyes of the animal can be located in the photographed focal length range, and the quality of the recorded iris image can be improved. The iris recognition acquisition method adopts the processes of positioning firstly, then adjusting the position and angle of the mark symbol and adjusting the focal length, and compared with the similar operation processes in the prior art, the iris recognition acquisition method has the advantages of simple operation and convenient use.
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the examples.
[ description of the drawings ]
FIG. 1 is a block diagram of an iris recognition acquisition device based on an animal management system in the present invention;
fig. 2 is a schematic structural diagram of an iris recognition apparatus according to the present invention;
FIG. 3 is a schematic diagram of a display surface of a mark in the present invention;
FIG. 4 is a perspective view of a cross mark in the present invention;
FIG. 5 is a schematic illustration of the initiation of the coincidence center point adjustment of the present invention;
FIG. 6 is a schematic diagram showing the end of the coincidence center point adjustment of the present invention;
FIG. 7 is a schematic illustration of the beginning of the cross mark adjustment of the present invention;
fig. 8 is a schematic end view of the start of the cross mark adjustment in the present invention.
[ detailed description ] of the invention
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, an iris recognition acquisition apparatus based on an animal management system, which includes an axis of motion 2, a symbol 3, an iris recognition device 4, and an animal eye 1, is described below with reference to the embodiments.
The iris recognition device 4 comprises an iris shooting camera 41, infrared illuminators 42 respectively positioned above, below, left and right of the iris shooting camera 41, a software processing system 43 connected with one side of the iris shooting camera 41, and a display device 44 connected with the other end of the software processing system 43. The infrared illuminator 42 is mainly used for providing an infrared illumination function when taking a picture. The iris photographing camera 41 mainly photographs iris images. The software processing system 43 is mainly used for controlling the iris shooting camera 41 to shoot images and simultaneously controlling the function of turning on the infrared illuminator 42 to turn on infrared illumination.
The marker number 3 comprises a triangle mark, a square mark, a round mark and a cross mark. In this embodiment, the reference symbol 3 is exemplified by a cross mark, which includes a base plate 30 disposed at the bottom, and a cross plate disposed on the base plate 30. The cross frame plate is formed by intersecting a transverse plate 31 and a longitudinal plate 32; the cross frame plate separates the base plate 30 into an upper left azimuth plane 33, an upper right azimuth plane 34, a lower left azimuth plane 35, and a lower right azimuth plane 36. In use, the base plate 30 is divided into four areas by the cross frame plate, the areas are all coated with white, the space above the base plate 30 is divided into an upper left azimuth area, an upper right azimuth area, a lower left azimuth area and a lower right azimuth area by the cross frame plate, and the areas are respectively coated with different colors, such as red, green, yellow, blue and the like, provided that the colors are obviously different, and the difference is easy. The upper surface area of the upper left azimuth plane 33 is an upper left azimuth plane area, the upper surface area of the upper right azimuth plane 34 is an upper right azimuth plane area, the upper surface area of the lower left azimuth plane 35 is a lower left azimuth plane area, and the upper surface area of the lower right azimuth plane 36 is a lower right azimuth plane area. The mark symbol 3 is attached to the animal eye 1, the iris recognition device 4 is located at the position right in front of the mark symbol 3, the mark symbol 3 and the iris recognition device 4 share the same optical axis 2, and the mark symbol 3 and the iris recognition device 4 are respectively located at two ends of the optical axis 2. Inside the iris recognition device 4, the software processing system 43 is respectively connected with the iris shooting camera 41 and the display device 44, and the infrared illuminator 42 is respectively connected with one end of the iris shooting camera 41. When the iris recognition device is used, the iris recognition device 4 utilizes the cross mark 3 attached to the recognized animal eye 1, the plane where the recognized animal eye 1 is located is driven to be perpendicular to the imaging optical axis of the iris shooting camera 41, the phenomenon that the recognition effect is reduced or can not be recognized due to the fact that the recognized animal eye 1 deviates from the optical axis by a certain angle in the prior art is avoided, the iris shooting camera 41 can be in the optimal shooting angle and the optimal shooting position in the shooting process, the iris recognition device 4 can be guaranteed to shoot high-definition iris image information, and therefore the iris image input and recognition efficiency is improved. Meanwhile, the photographed pet glasses main body can be located in a photographed focal length range, and the quality of the recorded iris images can be improved.
Referring to fig. 5 to 8, in the process of photographing, the iris recognition acquisition device of the present disclosure adopts an iris recognition acquisition method based on an animal management system, which includes the following steps: in a first step, the marker 3 is fixed at a position above the animal eye 1, then the iris recognition device 4 is fixed at a position right in front of the marker 3, and the marker 3 and the iris recognition device 4 are co-located on the same optical axis 2, so that a photographed marker display surface 5 is displayed in real time inside the iris recognition device 4, and the marker 3 is marked by a cross as an example.
And secondly, finding the crossing center point of the transverse plate 32 and the longitudinal plate 31 in the mark symbol 3, finding the cross center point on the cross 50 in the mark symbol display surface 5, and moving the crossing center point on the mark symbol 3 to the direction of the cross center point so as to drive the crossing center point to coincide with the two points of the cross center point to form a coincident center point.
Third, taking the coincidence center point as the center, moving a horizontal plate 32 in the horizontal direction in the mark symbol 3 to coincide with the horizontal base line in the mark symbol display surface 5, then adjusting the angle of the iris recognition device 4 aligned with the plane of the cross mark, so that the image in the iris recognition device 4 can only see an upper left azimuth plane 33, an upper right azimuth plane 34 or a lower left azimuth plane 35 and a lower right azimuth plane 36, and the surfaces of the two sides of the horizontal plate 32 can not be seen, so that the horizontal plate 32 on the mark symbol 3 is vertical to the horizontal base line of the mark symbol display surface 5, and the horizontal plate 32 and the horizontal base line are mutually vertically coincident;
a fourth step of moving the longitudinal plate 31 in the mark symbol 3 and the longitudinal base line in the mark symbol display surface 5 to coincide with each other with the coincidence center point as the center, and then adjusting the angle of the iris recognition device 4 aligned to the plane of the cross mark so that the image in the iris recognition device 4 can only see the upper left azimuth plane 33, the upper right azimuth plane 34, the lower left azimuth plane 35, and the lower right azimuth plane 36 in the respective independent areas and cannot see the surfaces of the two sides of the longitudinal plate 31; so that the longitudinal plate 31 is perpendicular to the longitudinal base line of the display surface of the marker symbol 3; the longitudinal plate 31 is overlapped with the longitudinal base line of the mark symbol display surface 5; thus, the center is formed by overlapping the center point of the cross with the center point of the cross, the longitudinal plate 31 with the longitudinal base line with each other, the transverse plate 32 with the transverse base line with each other, and the cross mark with the cross with each other.
Fifthly, calculating the display distance between the mark symbol 3 on the animal eye 1 and the iris recognition device 4 according to the image outline of the mark symbol 3 and the cross 50 which are mutually overlapped, the pixel occupied by the image outline and the system optical parameter, and adjusting the distance between the iris recognition device 4 and the animal according to the display distance and the focal length of the optical system; if the display distance is larger than the focal distance, the iris recognition device 4 is close to the eyes of the animal, otherwise, the iris recognition device 4 is far away from the eyes of the animal until meeting the requirements set by the iris recognition device 4. In the iris recognition acquisition method, the processes of positioning, adjusting position and angle and adjusting focal length are adopted. Compared with the similar operation flow in the prior art, the invention has the effects of simple operation and convenient use.
In the recording process, after the pet image information is captured, the software processing system 43 extracts the iris image information of the animal eye 1, and encodes and stores the iris image information in a predetermined order. In the identification process, after capturing the iris image information of the pet, the software processing system 43 extracts the iris image information of the animal eye 1, and performs coding and comparison according to a preset sequence and gives a comparison result. During shooting, the software processing system 43 recognizes the image contour of the cross mark 3 in the shot image through the iris shooting camera 41 and calculates the distance between the cross mark and the iris shooting camera 41 according to the number of the pixels occupied by the cross mark and the optical parameters of the iris shooting camera 41; the software processing system 43 simultaneously displays the image captured in real time by the iris photographing camera 41 and the distance parameter on the display device.
The symbol mark 3 in the above embodiment is not limited to the shape shown by the cross mark in the present embodiment, but the symbol mark 3 with any shape is used in cooperation with the iris recognition device 4, and the method similar to or identical to the flow method for acquiring the iris image information in the present embodiment is implemented and is within the scope of protection of the present invention. That is, any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the present invention shall fall within the scope of the claims of the present invention.
Claims (1)
1. An iris recognition acquisition method based on an animal management system comprises the following steps:
firstly, fixing a mark symbol at a position above eyes of an animal, then fixing iris recognition equipment at a position right in front of the mark symbol, wherein the mark symbol and the iris recognition equipment are located on the same optical axis together, so that a shot mark symbol display surface is displayed in the iris recognition equipment in real time; the marking symbol adopts cross marking as an example;
secondly, finding a cross center point of the cross of the transverse plate and the longitudinal plate in the mark symbol, finding a cross center point on a cross inside the display surface of the mark symbol, and then moving the cross center point on the mark symbol to the direction of the cross center point so as to drive the cross center point to coincide with the two points of the cross center point to form a coincident center point;
the third step, the horizontal board in the horizontal direction in the mark symbol is moved to be mutually overlapped with the horizontal base line in the mark symbol display surface by taking the overlapped center point as the center, then the angle of the iris recognition equipment which is aligned with the plane of the cross mark is adjusted, so that the image in the iris recognition equipment can only see the upper left azimuth plane, the upper right azimuth plane or the lower left azimuth plane and the lower right azimuth plane, and the surfaces of the two side surfaces of the horizontal board can not be seen, the horizontal board on the mark symbol is vertical to the horizontal base line of the mark symbol display surface, and the horizontal board is mutually vertically overlapped with the horizontal base line;
a fourth step of moving a longitudinal plate in the mark symbol and a longitudinal base line in a mark symbol display surface to coincide with each other by taking the coincidence center point as a center, and then adjusting the angle of the iris recognition device, which is aligned to the plane of the cross mark, so that an image in the iris recognition device can only see an upper left azimuth plane, an upper right azimuth plane, a lower left azimuth plane and a lower right azimuth plane, wherein the surfaces of the two sides of the longitudinal plate cannot be seen in independent areas; so that the longitudinal plate is perpendicular to the longitudinal base line of the marker symbol display surface; the longitudinal plate is overlapped with a longitudinal base line of the mark symbol display surface; thus, the center is formed by overlapping the cross center point with the cross center point, the longitudinal plate being overlapped with the longitudinal base line; the transverse plate is mutually overlapped with the transverse base line, and the cross mark is mutually overlapped with the cross;
fifthly, calculating the display distance from the iris recognition equipment to the mark symbol arranged on the animal eye according to the image outline of the mark symbol and the cross which are mutually overlapped, the pixel occupied by the image outline and the optical parameter of the system, and adjusting the distance between the iris recognition equipment and the animal according to the display distance and the focal length of the optical system; if the display distance is larger than the focal distance, the iris recognition device is close to the animal eye, otherwise, the iris recognition device is far away from the animal eye until meeting the requirements set by the iris recognition device;
an iris recognition acquisition device based on an animal management system is adopted based on an iris recognition acquisition method using the animal management system, and comprises an optical axis, a mark symbol and iris recognition equipment; the method for shooting and obtaining the iris image inside the animal eye is realized by mutually matching the mark symbols and the iris recognition equipment which are respectively positioned at the two ends of the optical axis;
the iris recognition equipment comprises an iris shooting camera, an infrared illuminator, a software processing system and a display device, wherein the infrared illuminator is respectively positioned at the periphery of the iris shooting camera, the software processing system is connected with one side of the iris shooting camera, and the display device is connected with the other end of the software processing system;
the mark symbol comprises a triangle mark, a square mark, a round mark and a cross mark;
the cross mark comprises a base plate arranged at the bottom and a cross frame plate arranged on the base plate;
the cross frame plate is formed by intersecting a transverse plate and a longitudinal plate; the cross frame plate divides the base plate into an upper left azimuth plane, an upper right azimuth plane, a lower left azimuth plane and a lower right azimuth plane.
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