CN110210444B - Application method of iris recognition technology - Google Patents
Application method of iris recognition technology Download PDFInfo
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- CN110210444B CN110210444B CN201910505457.0A CN201910505457A CN110210444B CN 110210444 B CN110210444 B CN 110210444B CN 201910505457 A CN201910505457 A CN 201910505457A CN 110210444 B CN110210444 B CN 110210444B
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- gait
- recognition
- user
- iris
- iris recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/197—Matching; Classification
Abstract
The invention provides an application method of an iris recognition technology, which comprises the following steps: gait recognition, state judgment, camera opening and iris recognition; the application method of the iris recognition technology is reasonable in design, the position of the camera can be selected to be started according to the height of the user, the quality of the collected image during iris recognition can be improved, the recognition quality can be improved, the state of the user can be judged according to the gait frequency of the user, and whether the voice prompt function is started or not is determined.
Description
Technical Field
The invention belongs to the technical field of iris recognition, and particularly relates to an application method of an iris recognition technology.
Background
The iris identification technology is based on iris in eyes for identification, and is applied to security equipment (such as access control) and places with high confidentiality requirements, but when the existing iris identification technology is applied, iris image acquisition cameras are fixed, but the rise of a user is high or low, which brings great inconvenience.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an application method of an iris recognition technology, which has reasonable design and can select the position for starting a camera according to the height of a user, thereby improving the quality of an image acquired during iris recognition, improving the recognition quality, judging the state of the user according to the gait frequency of the user and determining whether to start a voice prompt function.
In order to achieve the purpose, the invention is realized by the following technical scheme: an application method of an iris recognition technology comprises the following steps:
the method comprises the following steps: gait recognition; firstly, installing iris image acquisition cameras with different heights, starting gait recognition when a user enters a gait recognition range before iris recognition, refusing to enter if recognition fails, and extracting a gait distance, a gait frequency and a user height for standby if recognition succeeds;
step two: judging the state; judging the state of the user according to the gait frequency and the distance of each step, and if the gait frequency is large to a certain degree and the distance of each step is larger than the distance of the user by a certain numerical value at ordinary times, indicating that the user is in an emergency state of time driving or worries;
step three: the camera is started; judging an opened camera according to the height of a user, if the height is high, opening an iris image acquisition camera corresponding to the top, if the height is low, opening an iris image acquisition camera corresponding to the bottom, judging whether voice prompt exists according to the state of the user, if the user is in a normal state, carrying out voice prompt related to iris recognition, if the user is in an emergency state, cancelling the voice prompt, shortening the time of the whole recognition process, and then carrying out iris image acquisition;
step four: iris recognition; and after the iris picture is acquired, iris recognition is carried out, if the recognition is successful, the entrance is allowed, and if the recognition is failed, the entrance is refused.
In a preferred embodiment of the present invention, the voice guidance related to iris recognition in step three needs to be set according to actual situations, including where the eyes are looking directly and not closing the eyes.
As a preferred mode of the present invention, in the first step, when performing gait recognition, the monitoring camera collects the gait of the user, the video sequence of the gait is obtained by detection and tracking, the gait features of the user are extracted by preprocessing and analysis, that is, the gait motion in the image sequence is subjected to the key processes of motion detection, motion segmentation and feature extraction in the early stage of gait recognition, and then the gait motion is further processed to be in the same mode as the gait stored in the database, and finally, the newly collected gait features are compared with the gait features in the gait database for recognition.
As a preferable mode of the present invention, after the iris recognition is performed in the fourth step, if the iris recognition fails, the relevant processing, including the alarm or the warning, can be performed as needed.
The invention has the beneficial effects that:
1. the application method of the iris recognition technology can install a plurality of iris image acquisition cameras with different heights as required during application, and before iris recognition, the iris image acquisition cameras with corresponding heights can be opened according to the height of a user, so that the quality of acquired images during iris recognition can be improved, and the recognition quality is improved.
2. The application method of the iris recognition technology combines gait recognition, on one hand, safety can be improved, on the other hand, a judgment basis can be provided for starting the iris image acquisition camera, and the gait recognition is carried out in the approaching process, so that the iris recognition is not influenced.
3. The application method of the iris recognition technology judges the state of the user according to the gait frequency and the gait distance of the user extracted during gait recognition, so as to determine whether to start the voice prompt function, if the gait frequency is large to a certain degree, and the distance of each step is larger than the distance of the user by a certain numerical value at ordinary times, the user is in an emergency state such as catching time or worries, if the user is in the emergency state, the voice prompt is cancelled, so that the time of the whole recognition process is shortened, and the practicability is high.
Drawings
FIG. 1 is a schematic view of a specific process of an application method of an iris recognition technology;
fig. 2 is a flow chart illustrating steps of a method for applying an iris recognition technique.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 2, the present invention provides a technical solution: an application method of an iris recognition technology comprises the following steps:
the method comprises the following steps: gait recognition; firstly, installing iris image acquisition cameras with different heights, starting gait recognition when a user enters a gait recognition range before iris recognition, refusing to enter if recognition fails, and extracting a gait distance, a gait frequency and a user height for standby if recognition succeeds;
step two: judging the state; judging the state of the user according to the gait frequency and the distance of each step, and if the gait frequency is large to a certain degree and the distance of each step is larger than the distance of the user by a certain numerical value at ordinary times, indicating that the user is in an emergency state of time driving or worries;
step three: the camera is started; judging an opened camera according to the height of a user, if the height is high, opening an iris image acquisition camera corresponding to the top, if the height is low, opening an iris image acquisition camera corresponding to the bottom, judging whether voice prompt exists according to the state of the user, if the user is in a normal state, carrying out voice prompt related to iris recognition, if the user is in an emergency state, cancelling the voice prompt, shortening the time of the whole recognition process, and then carrying out iris image acquisition;
step four: iris recognition; and after the iris picture is acquired, iris recognition is carried out, if the recognition is successful, the entrance is allowed, and if the recognition is failed, the entrance is refused.
In a preferred embodiment of the present invention, the voice guidance related to iris recognition in step three needs to be set according to actual situations, including where the eyes are looking directly and not closing the eyes.
As a preferred mode of the present invention, in the first step, when performing gait recognition, the monitoring camera collects the gait of the user, the video sequence of the gait is obtained by detection and tracking, the gait features of the user are extracted by preprocessing and analysis, that is, the gait motion in the image sequence is subjected to the key processes of motion detection, motion segmentation and feature extraction in the early stage of gait recognition, and then the gait motion is further processed to be in the same mode as the gait stored in the database, and finally, the newly collected gait features are compared with the gait features in the gait database for recognition.
As a preferable mode of the present invention, after the iris recognition is performed in the fourth step, if the iris recognition fails, the relevant processing, including the alarm or the warning, can be performed as needed.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. An application method of an iris recognition technology is characterized by comprising the following steps:
the method comprises the following steps: gait recognition; firstly, installing iris image acquisition cameras with different heights, starting gait recognition when a user enters a gait recognition range before iris recognition, refusing to enter if recognition fails, and extracting a gait distance, a gait frequency and a user height for standby if recognition succeeds;
step two: judging the state; judging the state of the user according to the gait frequency and the distance of each step, and if the gait frequency is large to a certain degree and the distance of each step is larger than the distance of the user by a certain numerical value at ordinary times, indicating that the user is in an emergency state of time driving or worries;
step three: the camera is started; judging an opened camera according to the height of a user, if the height is high, opening an iris image acquisition camera corresponding to the top, if the height is low, opening an iris image acquisition camera corresponding to the bottom, judging whether voice prompt exists according to the state of the user, if the user is in a normal state, carrying out voice prompt related to iris recognition, if the user is in an emergency state, cancelling the voice prompt, shortening the time of the whole recognition process, and then carrying out iris image acquisition;
step four: iris recognition; and after the iris picture is acquired, iris recognition is carried out, if the recognition is successful, the entrance is allowed, and if the recognition is failed, the entrance is refused.
2. The method for applying an iris recognition technology as claimed in claim 1, wherein: the voice prompt related to iris recognition in the third step needs to be set according to actual conditions, including where the eyes are directly looking and do not close the eyes.
3. The method for applying an iris recognition technology as claimed in claim 1, wherein: when gait recognition is carried out in the first step, firstly, a monitoring camera collects user gait, a video sequence of the gait is obtained through detection and tracking, gait features of the user are extracted through preprocessing analysis, namely, gait movement in the image sequence is subjected to key processing of movement detection, movement segmentation and feature extraction in the early stage of gait recognition, then the gait is further processed to be in the same mode as the gait stored in the database, and finally, the newly collected gait features are compared with the gait features of the gait database for recognition.
4. The method for applying an iris recognition technology as claimed in claim 1, wherein: after iris recognition is carried out in the fourth step, relevant processing can be carried out according to requirements if the recognition fails, wherein the relevant processing comprises the step of giving an alarm or giving an alarm.
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