CN111209554B - Area analysis-based mobile terminal authorized access method - Google Patents
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- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims description 22
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- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/02—Affine transformations
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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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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Abstract
The invention relates to an authorized access method based on area analysis, which comprises the steps of using an authorized access device based on area analysis to identify the face of a user with the largest imaging area in front of a tablet computer, and performing black screen display when the user is identified as an unauthorized user.
Description
Technical Field
The invention relates to the field of mobile terminals, in particular to a mobile terminal authorized access method based on area analysis.
Background
The mobile terminal or called mobile communication terminal refers to a computer device which can be used in mobile, and broadly includes a mobile phone, a notebook, a tablet computer, a POS machine, and even a vehicle-mounted computer. But most often refer to cell phones or smart phones and tablets with multiple application functions. With the development of networks and technologies towards increasingly broader bands, the mobile communications industry will move towards a true mobile information age. On the other hand, with the rapid development of integrated circuit technology, the processing capability of the mobile terminal has already possessed strong processing capability, and the mobile terminal is changing from a simple conversation tool to an integrated information processing platform. This also adds more development space to mobile terminals.
Mobile terminals have been developed as simple communication devices with mobile communications for decades. From 2007, the gene mutation of the mobile terminal is intelligently triggered, and the traditional positioning of the terminal as a mobile network terminal is fundamentally changed. The mobile intelligent terminal is almost instantly changed into a key entrance and a main innovation platform of internet business, a novel media, electronic commerce and information service platform, the most important hub of internet resources, mobile network resources and environment interaction resources, and an operating system and a processor chip of the mobile intelligent terminal even become the strategic high points of the whole ICT industry at present. The subversive change caused by the mobile intelligent terminal opens the sequence of mobile internet industry development and opens a new technical industry period. With the continuous development of the mobile intelligent terminal, the influence of the mobile intelligent terminal is more extensive than that of a shoulder radio, a television and the internet (PC), and the mobile intelligent terminal becomes a 4 th terminal product which has wide penetration, rapid popularization and great influence and can reach the aspects of human social life historically.
Disclosure of Invention
The invention needs to have the following important invention points:
(1) identifying the face of the user with the largest imaging area in front of the tablet computer to execute black screen display when the user is identified as an unauthorized user, thereby realizing dynamic user management of the tablet computer;
(2) when the power of the fuel cell is sufficient, the data processing speed of each image processing assembly is accelerated, so that the processing speed and the working performance of the whole image processing system are improved.
According to an aspect of the present invention, there is provided an area analysis-based authorized access method including using an area analysis-based authorized access device to authenticate a face of a user whose imaging area in front of a tablet computer is the largest, and performing a black screen display when the user is authenticated as an unauthorized user, the area analysis-based authorized access device including: a command extraction device provided in the vicinity of the fuel cell for measuring an electromagnetic leakage value in the vicinity of the fuel cell and issuing a leakage notification command when the measured electromagnetic leakage value exceeds a limit; wherein the command extraction device is further configured to issue a leak-reliable command when the measured electromagnetic leak value is not exceeded.
More specifically, in the area analysis-based authorized access apparatus, the apparatus further includes: and the channel switching device is respectively connected with the command extraction device and the fuel cell and is used for cutting off the power supply channel of the fuel cell to the electric equipment when receiving the leakage notification command.
More specifically, in the area analysis-based authorized access device: the channel switching device is also used for restoring the power supply channel of the fuel cell to the electric equipment when the leakage reliable command is received.
More specifically, in the area analysis-based authorized access apparatus, the apparatus further includes: the grade measuring equipment is connected with the fuel cell and used for detecting the electric quantity of the fuel cell so as to output the corresponding current electric quantity grade; the embedded camera is arranged in the front panel of the tablet computer and is used for carrying out camera shooting operation on the use scene of the tablet computer so as to obtain a corresponding use scene image; the gamma correction equipment is connected with the embedded camera and used for receiving the using scene image and executing gamma correction processing on the using scene image so as to obtain and output a corresponding gamma correction image; and the non-scaling transformation fuzzy device is connected with the gamma correction device and is used for executing image smoothing operation based on a non-scaling transformation fuzzy mode on the received gamma correction image so as to obtain a corresponding first smooth image.
The authorized access method based on the area analysis has clear logic, and is safe and reliable. The user face with the largest imaging area in front of the tablet computer is identified, so that the black screen display is executed when the user face is identified as an unauthorized user, and the dynamic user management of the tablet computer is realized.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a back schematic view of a tablet computer to which an area analysis-based authorized access device is applied according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Tablet computers, also called portable computers (Tablet Personal computers, or Tablet for short), are small-sized and portable Personal computers, and use touch screens as basic input devices. It possesses a touch screen (also known as digitizer technology) that allows a user to work with a stylus or digitizer rather than a traditional keyboard or mouse. The user may enter the input through built-in handwriting recognition, on-screen soft keyboard, voice recognition, or a real keyboard if the model is equipped.
The tablet computer proposed by belz should support chip architectures from X86(Intel, AMD) and ARM, and is divided into an ARM architecture (representing products as ipad and android tablet computers) and an X86 architecture (representing products as Surface Pro), the latter X86 architecture tablet computer generally adopts an Intel processor and a Windows operating system, has complete computer and tablet functions, and supports an exe program. The development of tablet computers is accompanied by the rapid development of communication technology, and as an emerging technology, CDMA and CDMA2000 are rapidly spreading to the world and occupying 18% of the wireless market. By 2012, global CDMA2000 users have exceeded 2.56 billion, and 156 operators across 70 countries have already commercialized 3G CDMA service. From the concept of tablet computers proposed by microsoft, a tablet computer is a PC which does not need to be turned over, has no keyboard, is small enough to be put into a lady handbag, and has complete functions.
At present, in the use of a tablet computer, since some private data are inside the tablet computer and are not expected to be used by unauthorized persons, it is expected that the authorization management is performed on the unauthorized persons to prevent the unauthorized persons from accessing some important applications and data of the tablet computer, however, the current authentication and authorization mechanism still enables the unauthorized persons to perform login attempt actions of the tablet computer, and the shielding of the unauthorized persons is not thorough and intelligent enough.
In order to overcome the defects, the invention builds an authorized access method based on area analysis, and the method comprises the steps of using an authorized access device based on area analysis to identify the face of a user with the largest imaging area in front of a tablet computer, and performing black screen display when the user is identified as an unauthorized user. The authorized access device based on the area analysis can effectively solve the corresponding technical problem.
Fig. 1 is a back schematic view of a tablet computer to which an area analysis-based authorized access device is applied according to an embodiment of the present invention.
The area analysis-based authorized access device shown according to the embodiment of the invention comprises:
a command extraction device provided in the vicinity of the fuel cell for measuring an electromagnetic leakage value in the vicinity of the fuel cell and issuing a leakage notification command when the measured electromagnetic leakage value exceeds a limit;
wherein the command extraction device is further configured to issue a leak-reliable command when the measured electromagnetic leak value is not exceeded.
Next, the specific structure of the area analysis-based authorized access device of the present invention will be further described.
The area analysis-based authorized access device may further include:
and the channel switching device is respectively connected with the command extraction device and the fuel cell and is used for cutting off the power supply channel of the fuel cell to the electric equipment when receiving the leakage notification command.
In the area analysis-based authorized access device:
the channel switching device is also used for restoring the power supply channel of the fuel cell to the electric equipment when the leakage reliable command is received.
The area analysis-based authorized access device may further include:
the grade measuring equipment is connected with the fuel cell and used for detecting the electric quantity of the fuel cell so as to output the corresponding current electric quantity grade;
the embedded camera is arranged in the front panel of the tablet computer and is used for carrying out camera shooting operation on the use scene of the tablet computer so as to obtain a corresponding use scene image;
the gamma correction equipment is connected with the embedded camera and used for receiving the using scene image and executing gamma correction processing on the using scene image so as to obtain and output a corresponding gamma correction image;
the non-scaling transformation fuzzy device is connected with the gamma correction device and is used for carrying out image smoothing operation based on a non-scaling transformation fuzzy mode on the received gamma correction image so as to obtain a corresponding first smooth image;
the median blurring device is connected with the non-scaling transformation blurring device and is used for carrying out image smoothing operation based on a median blurring mode on the received first smooth image so as to obtain and output a corresponding second smooth image;
the statistical sorting filtering device is connected with the median blurring device and used for receiving the second smooth image and performing statistical sorting filtering processing on the second smooth image to obtain and output a corresponding statistical sorting filtering image;
the feature extraction device is connected with the statistical sorting filtering device and is used for performing facial feature extraction and identification on the facial imaging area with the largest area in the statistical sorting filtering image so as to obtain a corresponding user number;
in the feature extraction device, performing facial feature extraction and recognition on a facial imaging region having a largest area in the statistically sorted filtered images to obtain a corresponding user number includes: when the user corresponding to the face imaging area with the largest area in the statistical sorting filtering image is an unauthorized user, setting the corresponding user number as zero;
the display driving device is connected with the touch display screen of the tablet computer and the feature extraction device and is used for setting the display content of the touch display screen of the tablet computer to be a black screen when the received user number is zero;
the display driving device is further used for restoring the display content of the touch display screen of the tablet computer from a black screen to normal display when the received user number is non-zero;
when the received current electric quantity level exceeds the limit, the gamma correction equipment, the median fuzzy equipment, the statistical sorting filtering equipment and the non-scaling transformation fuzzy equipment improve the respective image processing speed;
and when the received current electric quantity level is not exceeded, the gamma correction device, the median fuzzy device, the statistical sorting filtering device and the non-scaling transformation fuzzy device recover respective image processing speeds.
The area analysis-based authorized access device may further include:
affine transformation equipment, connected to the embedded camera, configured to receive the usage scene image, equally divide the usage scene image into blocks of corresponding block sizes based on a distance between a signal-to-noise ratio level of the usage scene image and a preset lower-limit signal-to-noise ratio level, select, for each block, affine transformation processing of different corresponding strengths based on a pixel value variance of the block to obtain adjusted blocks, and merge the obtained adjusted blocks to obtain an adjusted and merged image; in the affine transformation device, the larger the signal-to-noise ratio level of the usage scene image is from a preset lower limit signal-to-noise ratio level, the larger the corresponding block into which the usage scene image is equally divided, and in the affine transformation device, the larger the overall distortion degree of the block is for each block, the larger the degree of the selected affine transformation processing.
In the area analysis-based authorized access device:
the affine transformation device is also connected with the gamma correction device and used for sending the adjusted merged image to the gamma correction device to replace the use scene image.
The area analysis-based authorized access device may further include:
and the signal-to-noise ratio improving device is connected with the affine transformation device and is used for performing signal-to-noise ratio improving operation on the use scene image when the signal-to-noise ratio level of the use scene image is less than the preset lower limit signal-to-noise ratio level before the affine transformation device performs affine transformation on the use scene image, inputting the use scene image subjected to the signal-to-noise ratio improving operation into the affine transformation device instead of the use scene image, and performing no signal-to-noise ratio improving operation on the use scene image when the signal-to-noise ratio level of the use scene image is greater than or equal to the preset lower limit signal-to-noise ratio level.
The area analysis-based authorized access device may further include:
and the EDO DRAM storage equipment is connected with the affine transformation equipment and is used for pre-storing the preset lower limit signal-to-noise ratio grade.
In addition, the EDO (extended Data out) DRAM is 5% faster than the FPM because a logic circuit is provided in the EDO, whereby the EDO can read the next Data into the memory before the previous memory Data read is finished. EDODRAM designed as system memory is inherently very expensive, and is widely used in fifth generation PCs because the PC market is demanding a replacement for FPM DRAM. The EDO video memory can work at 75MHz or higher, but the standard working frequency is 66MHz, but the speed cannot meet the requirement of a display chip.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (2)
1. An area analysis-based authorized access method comprising using an area analysis-based authorized access device to authenticate a user's face with a maximum imaged area in front of a tablet computer and perform a black screen display when the user is authenticated as an unauthorized user, the area analysis-based authorized access device comprising:
a command extraction device provided in the vicinity of the fuel cell for measuring an electromagnetic leakage value in the vicinity of the fuel cell and issuing a leakage notification command when the measured electromagnetic leakage value exceeds a limit;
the command extraction equipment is also used for sending a leakage reliable command when the measured electromagnetic leakage value is not exceeded;
channel switching devices respectively connected to the command extraction device and the fuel cell, for cutting off a power supply channel of the fuel cell to the electric device upon receiving the leakage notification command;
the channel switching device is also used for restoring the power supply channel of the fuel cell to the electric equipment when the leakage reliable command is received;
the grade measuring equipment is connected with the fuel cell and used for detecting the electric quantity of the fuel cell so as to output the corresponding current electric quantity grade;
the embedded camera is arranged in the front panel of the tablet computer and is used for carrying out camera shooting operation on the use scene of the tablet computer so as to obtain a corresponding use scene image;
the gamma correction equipment is connected with the embedded camera and used for receiving the using scene image and executing gamma correction processing on the using scene image so as to obtain and output a corresponding gamma correction image;
the non-scaling transformation fuzzy device is connected with the gamma correction device and is used for carrying out image smoothing operation based on a non-scaling transformation fuzzy mode on the received gamma correction image so as to obtain a corresponding first smooth image;
the median blurring device is connected with the non-scaling transformation blurring device and is used for carrying out image smoothing operation based on a median blurring mode on the received first smooth image so as to obtain and output a corresponding second smooth image;
the statistical sorting filtering device is connected with the median blurring device and used for receiving the second smooth image and performing statistical sorting filtering processing on the second smooth image to obtain and output a corresponding statistical sorting filtering image;
the feature extraction device is connected with the statistical sorting filtering device and is used for performing facial feature extraction and identification on the facial imaging area with the largest area in the statistical sorting filtering image so as to obtain a corresponding user number;
in the feature extraction device, performing facial feature extraction and recognition on a facial imaging region having a largest area in the statistically sorted filtered images to obtain a corresponding user number includes: when the user corresponding to the face imaging area with the largest area in the statistical sorting filtering image is an unauthorized user, setting the corresponding user number as zero;
the display driving device is connected with the touch display screen of the tablet computer and the feature extraction device and is used for setting the display content of the touch display screen of the tablet computer to be a black screen when the received user number is zero;
the display driving device is further used for restoring the display content of the touch display screen of the tablet computer from a black screen to normal display when the received user number is non-zero;
when the received current electric quantity level exceeds the limit, the gamma correction equipment, the median fuzzy equipment, the statistical sorting filtering equipment and the non-scaling transformation fuzzy equipment improve the respective image processing speed;
when the received current electric quantity level is not exceeded, the gamma correction device, the median fuzzy device, the statistical sorting filtering device and the non-scaling transformation fuzzy device recover respective image processing speeds;
affine transformation equipment, connected to the embedded camera, configured to receive the usage scene image, equally divide the usage scene image into blocks of corresponding block sizes based on a distance between a signal-to-noise ratio level of the usage scene image and a preset lower-limit signal-to-noise ratio level, select, for each block, affine transformation processing of different corresponding strengths based on a pixel value variance of the block to obtain adjusted blocks, and merge the obtained adjusted blocks to obtain an adjusted and merged image; in the affine transformation device, the larger the signal-to-noise ratio level of the usage scene image is from a preset lower limit signal-to-noise ratio level, the larger the corresponding block into which the usage scene image is equally divided, and in the affine transformation device, the larger the overall distortion degree of the block is for each block, the larger the degree of the selected affine transformation processing is;
the signal-to-noise ratio improving device is connected with the affine transformation device and used for performing signal-to-noise ratio improving operation on the use scene image when the signal-to-noise ratio level of the use scene image is smaller than the preset lower limit signal-to-noise ratio level before the affine transformation device performs affine transformation on the use scene image, inputting the use scene image subjected to the signal-to-noise ratio improving operation to the affine transformation device instead of the use scene image, and not performing the signal-to-noise ratio improving operation on the use scene image when the signal-to-noise ratio level of the use scene image is larger than or equal to the preset lower limit signal-to-noise ratio level;
and the EDO DRAM storage equipment is connected with the affine transformation equipment and is used for pre-storing the preset lower limit signal-to-noise ratio grade.
2. The method of claim 1, wherein:
the affine transformation device is also connected with the gamma correction device and used for sending the adjusted merged image to the gamma correction device to replace the use scene image.
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| JP5924964B2 (en) * | 2012-02-07 | 2016-05-25 | シャープ株式会社 | Communication terminal |
| CN108454466A (en) * | 2017-11-29 | 2018-08-28 | 广西师范学院 | Coach suspect's identifying system |
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| US8736226B2 (en) * | 2008-10-28 | 2014-05-27 | Panasonic Corporation | Charging cable, charging cable unit, and charging system for electric vehicle |
| US9685806B2 (en) * | 2013-11-15 | 2017-06-20 | Izak Bencuya | Power connector with load current sensing |
| CN106684404A (en) * | 2017-01-05 | 2017-05-17 | 北京氢璞创能科技有限公司 | Fuel cell controller package design |
| CN207750141U (en) * | 2018-01-19 | 2018-08-21 | 重庆工商职业学院 | A kind of automobile engine intelligent start/stop system sensing control device |
| CN108388781B (en) * | 2018-01-31 | 2021-01-12 | Oppo广东移动通信有限公司 | Mobile terminal, image data acquisition method and related product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448760B1 (en) * | 1997-12-30 | 2005-01-17 | 현대자동차주식회사 | Power steering system for assisting operational force of steering wheel by pulling piston connected to tie rod with magnetic force of electromagnet |
| JP5924964B2 (en) * | 2012-02-07 | 2016-05-25 | シャープ株式会社 | Communication terminal |
| CN108454466A (en) * | 2017-11-29 | 2018-08-28 | 广西师范学院 | Coach suspect's identifying system |
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