CN106296888B - Unlocking method and device based on face recognition and terminal - Google Patents
Unlocking method and device based on face recognition and terminal Download PDFInfo
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- CN106296888B CN106296888B CN201510353957.9A CN201510353957A CN106296888B CN 106296888 B CN106296888 B CN 106296888B CN 201510353957 A CN201510353957 A CN 201510353957A CN 106296888 B CN106296888 B CN 106296888B
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- G06—COMPUTING OR CALCULATING; 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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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Abstract
The embodiment of the invention discloses an unlocking method based on face recognition, which comprises the following steps: the terminal collects face image information and face temperature information; and when the face image information is determined to accord with the preset face image characteristic and the face temperature information accords with the preset face temperature characteristic, unlocking. Meanwhile, the embodiment of the invention also discloses an unlocking device and an unlocking terminal based on the face recognition.
Description
Technical Field
The invention relates to the field of mobile terminals, in particular to an unlocking method and device based on face recognition and a terminal.
Background
At present, in order to improve the convenience of the unlocking process of the mobile terminal, the mobile terminal can be unlocked through face recognition. Specifically, when the mobile terminal detects that a human face approaches through the infrared device, the mobile terminal automatically starts a front camera of the mobile terminal to perform face recognition unlocking.
However, the existing face recognition unlocking method cannot distinguish whether the currently input face image is real, that is, even if a user places a clear face picture in front of the front camera, the terminal can be successfully unlocked, so that the unlocking safety of the terminal is reduced.
Disclosure of Invention
In order to solve the technical problem, embodiments of the present invention are expected to provide an unlocking method, an unlocking device and a terminal based on face recognition, so that the security of terminal unlocking is improved.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides an unlocking method based on face recognition, where the method includes: the terminal collects face image information and face temperature information; and unlocking when the face image information is determined to accord with the preset face image characteristic and the face temperature information accords with the preset face temperature characteristic.
In the above embodiment, the face temperature information includes average temperatures of at least two regions of the face corresponding to the face image information.
In the above embodiment, the determining, by the terminal, that the face temperature information conforms to a preset face temperature characteristic specifically includes: and when the terminal identifies that the average temperatures of at least two areas are different from each other, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the determining, by the terminal, that the face temperature information conforms to the preset face temperature characteristic specifically includes: and when the average temperature of the preset area of the face, which is acquired by the terminal per se, meets the preset average temperature of each area, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the determining, by the terminal, that the face temperature information conforms to the preset face temperature characteristic specifically includes: the terminal acquires the current ambient temperature; when the average temperature of preset areas of the face, which is collected by the terminal, is identified to respectively meet the preset average temperature corresponding to each area under the current environment temperature, it is determined that the face temperature information accords with the preset face temperature characteristics.
In a second aspect, an embodiment of the present invention provides an unlocking device based on face recognition, where the device includes: an acquisition unit and an unlocking unit, wherein: the acquisition unit is used for acquiring face image information and face temperature information; the unlocking unit is used for unlocking when the face image information collected by the collecting unit is determined to accord with the preset face image characteristics and the face temperature information collected by the collecting unit is determined to accord with the preset face temperature characteristics.
In the above embodiment, the face temperature information includes average temperatures of at least two regions of the face corresponding to the face image information.
In the above embodiment, the unlocking unit is specifically configured to: and when the average temperatures of at least two areas are identified to be different from each other, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the unlocking unit is specifically configured to: and when the average temperature of the preset area of the face collected by the user is recognized to respectively meet the preset average temperature of each area, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the unlocking unit includes: an acquisition subunit and a determination subunit, wherein: the acquiring subunit is used for acquiring the current environment temperature; the determining subunit is configured to determine that the face temperature information conforms to the preset face temperature characteristics when the average temperatures of preset regions of the face, acquired by the identifying subunit, respectively meet the preset average temperatures corresponding to the regions at the current ambient temperature acquired by the acquiring subunit.
In a third aspect, an embodiment of the present invention provides an unlocking terminal based on face recognition, where the terminal includes: the camera, infrared thermometer, treater and be used for storing the memory of treater executable instruction, wherein: the camera is used for collecting face image information; the infrared thermometer is used for collecting face temperature information; the processor is used for unlocking when the face image information collected by the camera is determined to accord with the preset face image characteristics and the face temperature information collected by the infrared thermometer accords with the preset face temperature characteristics.
In the above embodiment, the face temperature information includes average temperatures of at least two regions of the face corresponding to the face image information.
In the above embodiment, the processor is specifically configured to: and when the average temperatures of at least two areas are identified to be different from each other, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the processor is specifically configured to: and when the average temperature of the preset area of the face collected by the user is recognized to respectively meet the preset average temperature of each area, determining that the face temperature information conforms to the preset face temperature characteristics.
In the above embodiment, the infrared thermometer is specifically configured to: acquiring the current environment temperature; the processor is specifically configured to: and when the average temperature of the preset area of the face collected by the human face self is recognized to respectively meet the preset average temperature corresponding to each area under the current environment temperature acquired by the infrared thermometer, determining that the face temperature information accords with the preset face temperature characteristic.
The embodiment of the invention provides an unlocking method, device and terminal based on face recognition, wherein face image information and face temperature information are collected through the terminal; when the face image information is determined to accord with the preset face image characteristics and the face temperature information accords with the preset face temperature characteristics, unlocking is carried out, authenticity of the face image is effectively distinguished, safety of terminal unlocking is improved, and user privacy is better protected.
Drawings
Fig. 1 is a schematic flow chart of an unlocking method based on face recognition according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of temperature acquisition of each region of a face according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a detailed first embodiment of an unlocking method based on face recognition according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a second detailed embodiment of the unlocking method based on face recognition according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of an unlocking device based on face recognition according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another unlocking device based on face recognition according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an unlocking terminal based on face recognition according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is a schematic flow chart of an unlocking method based on face recognition, which is provided by an embodiment of the present invention, and the method includes:
s101: the terminal collects face image information and face temperature information;
the face image information and the face temperature information are used for authentication or verification of terminal unlocking.
It should be noted that the terminal can acquire face image information by turning on the camera and acquire face temperature information by turning on the infrared thermometer. Of course, the terminal may also acquire the face image information and the face temperature information in other manners, which is not limited in the embodiment of the present invention.
Illustratively, the face temperature information includes an average temperature of at least two regions of the face corresponding to the face image information.
For example, referring to the schematic diagram of temperature acquisition of each region of the face shown in fig. 2, the terminal acquires the temperatures of at least two points in two cheeks, i.e., the b region and the c region, the forehead, i.e., the a region, and the chin, i.e., the d region of the face, and calculates the average values of the temperatures of the four regions.
S102: and when the face image information is determined to accord with the preset face image characteristic and the face temperature information accords with the preset face temperature characteristic, unlocking.
The preset face temperature characteristic is used for judging whether the face image information acquired by the terminal is real face information.
If the face image information conforms to the preset face image characteristics, the face image information acquired by the terminal is the image information of the user; if the face temperature information conforms to the preset face temperature characteristic, the face image information acquired by the terminal is real face information, so that the user can be further determined to carry out terminal unlocking operation, and the safety of terminal unlocking is improved.
Exemplarily, the determining, by the terminal, that the face temperature information conforms to the preset face temperature characteristic specifically includes: and when the terminal identifies that the average temperatures of at least two areas are different from each other, determining that the face temperature information conforms to the preset face temperature characteristic.
It should be noted that the surface temperatures of different regions of the face are different, that is, the probability that the average temperatures of the face regions collected by the terminal are completely the same is very small; if the face image information acquired by the terminal is not real face information, for example, a face photo, the probability that the average temperatures of the face regions acquired by the terminal are completely the same is very high, and therefore, whether the face image information acquired by the terminal is real face information is judged by judging whether the average temperatures of at least two regions are different from each other.
Exemplarily, the determining, by the terminal, that the face temperature information conforms to the preset face temperature characteristic specifically includes: when the terminal identifies that the average temperature of the preset area of the face collected by the terminal per se meets the preset average temperature of each area, the fact that the face temperature information accords with the preset face temperature characteristic is determined.
The human face temperature information acquisition system comprises a human face preset area and at least two areas which are preset for the human face and need to acquire human face temperature information through a terminal.
It should be noted that the surface temperature of the human face is 33-35 ℃, and the temperature difference between different areas of the human face is 1-2 ℃. If the average temperature of the preset region of the face meets the preset average temperature of each region, the face image information acquired by the terminal is real face information.
Exemplarily, the determining, by the terminal, that the face temperature information conforms to the preset face temperature characteristic specifically includes: the terminal acquires the current environmental temperature; when the terminal identifies that the average temperature of the preset area of the face collected by the terminal meets the preset average temperature corresponding to each area under the current environment temperature, the fact that the face temperature information accords with the preset face temperature characteristic is determined.
It should be noted that the temperature of the face of the person is affected by the ambient temperature, and therefore, the terminal presets the preset average temperatures corresponding to the regions at different ambient temperatures according to the difference of the current ambient temperature, so that the accuracy of the terminal in judging whether the acquired face image information is real or not can be improved.
Therefore, the unlocking method based on the face recognition provided by the embodiment of the invention is applied to unlocking the terminal, so that a user can operate the terminal. Of course, those skilled in the art may also apply the unlocking method disclosed in the embodiment of the present invention to release the locked state of the application program of the terminal, so that the user may open the corresponding application program.
Fig. 3 is a flowchart of a detailed first embodiment of an unlocking method based on face recognition according to an embodiment of the present invention, where the method includes:
s301: the terminal lights a screen after receiving the awakening message;
it should be noted that, in the first detailed embodiment of the present invention, the terminal lights up the screen, so that the terminal performs the subsequent unlocking operation in the screen-up state. Of course, in practical applications, the terminal may also perform the unlocking operation in the screen-off state.
S302: the terminal starts a camera and an infrared thermometer;
s303: the terminal collects face image information through a camera and collects face temperature information through an infrared thermometer;
s304: the terminal judges whether the face image information accords with the preset face image characteristics, if so, the step S305 is executed; and if not, the terminal fails to unlock.
S305: the terminal judges whether the face temperature information accords with preset face temperature characteristics, and if yes, the terminal is unlocked successfully; and if not, the terminal fails to unlock.
It should be added that the unlocking method provided in the embodiment of the present invention may be applied to unlocking the locked state of the terminal, and may also be applied to unlocking the locked state of the application program corresponding to the terminal, which is not specifically limited in the embodiment of the present invention.
Fig. 4 is a flowchart illustrating a detailed embodiment two of the unlocking method based on face recognition according to the embodiment of the present invention, and in combination with the temperature acquisition of each region of the face shown in fig. 2, the method includes:
s401: the terminal collects face image information and the average temperature of four areas of a face, b, c and d;
s402: the terminal judges whether the face image information accords with the preset face image characteristics, if so, the step S403 is executed; and if not, the terminal fails to unlock.
S403: the terminal judges the average temperature of the four areas a, b, c and d, whether the average temperature of at least two areas is different from each other or not, if yes, the step S404 is executed; and if not, the terminal fails to unlock.
S404: the terminal collects the current environment temperature T, and if the current environment temperature T is 5-35 ℃, the step S405 is executed; if T is lower than 5 ℃, executing step S406; if T is higher than 35 ℃, executing step S407;
s405: the terminal judges whether the four average temperatures are within 32-35 ℃, and if yes, the terminal is unlocked successfully; if not, the terminal fails to unlock.
S406: the terminal judges whether the four average temperatures are all between 30 and 35 ℃, and if so, the terminal is successfully unlocked; and if not, the terminal fails to unlock.
S407: the terminal judges whether the four average temperatures are within 32-37 ℃, and if yes, the terminal is successfully unlocked; and if not, the terminal fails to unlock.
It should be added that the unlocking method provided by the embodiment of the present invention may be applied to unlocking the locked state of the terminal, and may also be applied to unlocking the locked state of the corresponding application program of the terminal, and thus, the embodiment of the present invention is not specifically limited.
The embodiment of the invention provides an unlocking method based on face recognition, wherein when a terminal is awakened, the terminal acquires face image information and face temperature information; when the terminal determines that the face image information accords with the preset face image characteristic and the face temperature information accords with the preset face temperature characteristic, the terminal unlocks, authenticity of the face image is effectively distinguished, safety of terminal unlocking is improved, and user privacy is better protected.
Fig. 5 is a schematic structural diagram of an unlocking device 50 based on face recognition, which includes: an acquisition unit 501 and an unlocking unit 502, wherein:
the acquisition unit 501 is used for acquiring face image information and face temperature information;
and the unlocking unit 502 is configured to unlock the mobile terminal when it is determined that the face image information acquired by the acquisition unit 501 conforms to the preset face image characteristic and the face temperature information acquired by the acquisition unit 501 conforms to the preset face temperature characteristic.
Illustratively, the face temperature information includes an average temperature of at least two regions of the face corresponding to the face image information.
Exemplarily, the unlocking unit 502 is specifically configured to: and when the average temperatures of at least two areas are identified to be different from each other, determining that the face temperature information conforms to the preset face temperature characteristics.
Exemplarily, the unlocking unit 502 is specifically configured to: and when the average temperature of the preset area of the face collected by the user is recognized to respectively meet the preset average temperature of each area, determining that the face temperature information accords with the preset face temperature characteristic.
Exemplarily, fig. 6 illustrates a structure of another unlocking device based on face recognition according to an embodiment of the present invention, where the unlocking unit 502 includes: an acquisition subunit 5021 and a determination subunit 5022, wherein:
an acquiring subunit 5021, configured to acquire a current ambient temperature;
the determining subunit 5022 is configured to determine that the face temperature information conforms to the preset face temperature characteristics when the average temperatures of the preset regions of the face collected by the user respectively meet the preset average temperatures corresponding to the regions at the current ambient temperature acquired by the acquiring subunit 5021.
Fig. 7 is a schematic structural diagram of an unlocking terminal 70 based on face recognition according to an embodiment of the present invention, where the terminal includes: a camera 701, an infrared thermometer 702, a processor 703 and a memory 704 for storing instructions executable by the processor 703, wherein:
the camera 701 is used for acquiring face image information;
an infrared thermometer 702 for collecting the temperature information of the human face;
the processor 703 is configured to unlock the mobile terminal when it is determined that the face image information acquired by the camera 701 conforms to the preset face image characteristic and the face temperature information acquired by the infrared thermometer 702 conforms to the preset face temperature characteristic.
Illustratively, the face temperature information includes an average temperature of at least two regions of the face corresponding to the face image information.
Illustratively, the processor 703 is specifically configured to: and when the average temperatures of at least two areas are identified to be different from each other, determining that the face temperature information conforms to the preset face temperature characteristics.
Illustratively, the processor 703 is specifically configured to: and when the average temperature of the preset area of the face collected by the user is recognized to respectively meet the preset average temperature of each area, determining that the face temperature information accords with the preset face temperature characteristic.
Illustratively, the infrared thermometer 702 is specifically configured to: acquiring the current environment temperature; the processor 703 is specifically configured to: when the average temperature of the preset region of the face collected by the human face recognition device meets the preset average temperature corresponding to each region under the current environment temperature acquired by the infrared thermometer 702, it is determined that the face temperature information meets the preset face temperature characteristics.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (3)
1. An unlocking method based on face recognition is characterized by comprising the following steps:
the terminal collects face image information and face temperature information;
when the face image information is determined to accord with the preset face image characteristics and the face temperature information accords with the preset face temperature characteristics, unlocking;
the face temperature information comprises average temperatures of at least two areas of a face corresponding to the face image information;
the terminal determines that the face temperature information conforms to preset face temperature characteristics, and the method specifically comprises the following steps:
when the terminal identifies that the average temperatures of at least two areas are different from each other, acquiring the current environment temperature;
when the average temperature of the preset area of the face, which is identified by the terminal to collect by itself, meets the preset average temperature corresponding to each area under the current environment temperature, it is determined that the face temperature information conforms to the preset face temperature characteristics.
2. An unlocking device based on face recognition, characterized in that the device comprises: an acquisition unit and an unlocking unit, wherein:
the acquisition unit is used for acquiring face image information and face temperature information;
the unlocking unit is used for unlocking when the face image information acquired by the acquisition unit is determined to accord with the preset face image characteristics and the face temperature information acquired by the acquisition unit is determined to accord with the preset face temperature characteristics;
the face temperature information comprises average temperatures of at least two areas of a face corresponding to the face image information;
the unlocking unit includes: an acquisition subunit and a determination subunit, wherein:
the acquiring subunit is configured to acquire the current ambient temperature when it is identified that the average temperatures of the at least two regions are different from each other;
the determining subunit is configured to determine that the face temperature information conforms to the preset face temperature characteristics when the average temperatures of preset regions of the face, acquired by the identifying subunit, respectively meet the preset average temperatures corresponding to the regions at the current ambient temperature acquired by the acquiring subunit.
3. An unlocking terminal based on face recognition is characterized in that the terminal comprises: the camera, infrared thermometer, treater and be used for storing the memory of treater executable instruction, wherein:
the camera is used for collecting face image information;
the infrared thermometer is used for collecting face temperature information;
the processor is used for unlocking when the face image information collected by the camera is determined to accord with the preset face image characteristics and the face temperature information collected by the infrared thermometer accords with the preset face temperature characteristics;
the face temperature information comprises average temperatures of at least two areas of a face corresponding to the face image information;
the infrared thermometer is specifically used for: when the processor identifies that the average temperatures of at least two areas are different from each other, acquiring the current environment temperature;
the processor is specifically configured to: and when the average temperature of the preset area of the face collected by the human face self is recognized to respectively meet the preset average temperature corresponding to each area under the current environment temperature acquired by the infrared thermometer, determining that the face temperature information accords with the preset face temperature characteristic.
Priority Applications (2)
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|---|---|---|---|
| CN201510353957.9A CN106296888B (en) | 2015-06-24 | 2015-06-24 | Unlocking method and device based on face recognition and terminal |
| PCT/CN2015/088261 WO2016206185A1 (en) | 2015-06-24 | 2015-08-27 | Unlocking method, device and terminal based on face recognition and storage medium |
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| CN201510353957.9A CN106296888B (en) | 2015-06-24 | 2015-06-24 | Unlocking method and device based on face recognition and terminal |
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| CN106296888B true CN106296888B (en) | 2022-05-13 |
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| CN109255219A (en) * | 2017-07-12 | 2019-01-22 | 上海荆虹电子科技有限公司 | A kind of temperature sense unlocking method and system based on bio-identification terminal |
| CN107622191B (en) * | 2017-09-08 | 2020-03-10 | Oppo广东移动通信有限公司 | Unlocking control method and related product |
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| CN107633235B (en) * | 2017-09-27 | 2020-12-25 | Oppo广东移动通信有限公司 | Unlocking control method and related product |
| CN107832669B (en) * | 2017-10-11 | 2021-09-14 | Oppo广东移动通信有限公司 | Face detection method and related product |
| TWI625679B (en) * | 2017-10-16 | 2018-06-01 | 緯創資通股份有限公司 | Live facial recognition method and system |
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| CN109856979B (en) * | 2018-12-21 | 2022-03-25 | 深圳云天励飞技术有限公司 | Environment adjusting method, system, terminal and medium |
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| CN111508128A (en) * | 2020-04-26 | 2020-08-07 | 珠海格力电器股份有限公司 | Access control method, access control system, storage medium and electronic equipment |
| CN111681353B (en) * | 2020-05-28 | 2022-03-25 | 浙江大华技术股份有限公司 | Thermal imaging temperature measurement method, integrated equipment and storage medium |
| DE102020119264A1 (en) * | 2020-07-21 | 2022-01-27 | Mühlbauer Gmbh & Co. Kg | Method and device for personal access control depending on a temperature measurement |
| TWI787664B (en) * | 2020-10-23 | 2022-12-21 | 正修學校財團法人正修科技大學 | IoT SECURITY SYSTEM AND METHOD THEREOF |
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| KR20120122587A (en) * | 2011-04-29 | 2012-11-07 | 이청종 | Apparatus and method of mobile terminal security using fingerprint and face recognition |
| CN103167160A (en) * | 2012-10-09 | 2013-06-19 | 深圳市金立通信设备有限公司 | System and method for achieving awakening and unlocking of mobile phone based on technology of temperature sense and human face recognition |
| CN103235942A (en) * | 2013-05-14 | 2013-08-07 | 苏州福丰科技有限公司 | Facial recognition method applied to entrance guard |
| CN103279999A (en) * | 2013-05-14 | 2013-09-04 | 苏州福丰科技有限公司 | Card reading system based on face recognition |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016206185A1 (en) | 2016-12-29 |
| CN106296888A (en) | 2017-01-04 |
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