CN111259687A - Fingerprint unlocking device and method and electronic equipment - Google Patents
Fingerprint unlocking device and method and electronic equipment Download PDFInfo
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- CN111259687A CN111259687A CN201811457379.3A CN201811457379A CN111259687A CN 111259687 A CN111259687 A CN 111259687A CN 201811457379 A CN201811457379 A CN 201811457379A CN 111259687 A CN111259687 A CN 111259687A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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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
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Image Input (AREA)
- Collating Specific Patterns (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The disclosure relates to a fingerprint unlocking device and method and an electronic device, which can reduce exposure and transmission time during fingerprint unlocking. The method comprises the following steps: detecting whether a finger touches; under the condition that finger touch is detected, acquiring touch coordinates and an estimated finger area; setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and scanning array pixels based on local panel coordinates of the fingerprint.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a fingerprint unlocking apparatus and method, and an electronic device.
Background
Large-area fingerprints are applied to mobile phones and other terminals in a recent succession. Because the area of the adopted image is large, the exposure and transmission time is long, the unlocking speed is reduced, and the user experience is also reduced. In order to solve the problem, one solution is to divide the sensing area of the fingerprint into a plurality of blocks, each block can completely cover one fingerprint entry, and then when the fingerprint is unlocked, the fingerprint position is judged through a touch sensor, and scanning is performed on a block corresponding to the fingerprint position. However, if the fingerprint occupies 4 blocks, as shown in FIG. 1, then 4 blocks (e.g., B, C, F and G in FIG. 1) are activated simultaneously when the fingerprint unlocks, the exposure and transfer times are still long.
Disclosure of Invention
The purpose of the present disclosure is to provide a fingerprint unlocking device, method and electronic device, which can reduce exposure and transmission time during fingerprint unlocking.
According to a first embodiment of the present disclosure, there is provided a fingerprint unlocking method, including: detecting whether a finger touches; under the condition that finger touch is detected, acquiring touch coordinates and an estimated finger area; setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and scanning array pixels based on local panel coordinates of the fingerprint.
Optionally, the detecting whether there is a finger touch includes: whether a finger touches or not is detected by a touch sensor or a pressure sensor.
Optionally, the acquiring touch coordinates and an estimated finger area when a finger touch is detected includes: and under the condition that the finger touch is detected, acquiring the touch coordinate and the estimated finger area by using a touch or pressure sensing mode.
Optionally, the scanning the array pixels based on the local sampling coordinates of the fingerprint comprises: scanning the array pixels line-by-line or in multiple lines based on local sampling coordinates of the fingerprint.
Optionally, the method further comprises: and under the condition that the display screen is in a black screen state, setting a local highlight area of the display screen by using the touch coordinate and the estimated finger area.
According to a second embodiment of the present disclosure, there is provided a fingerprint unlocking device including: the detection module is used for detecting whether a finger touches the touch screen; the acquisition module is used for acquiring a touch coordinate and an estimated finger area under the condition that finger touch is detected; the first setting module is used for setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and a scanning module for scanning the array pixels based on the local sampling coordinates of the fingerprint.
Optionally, the detection module is a touch sensor or a pressure sensor.
Optionally, the obtaining module includes a obtaining sub-module, configured to obtain the touch coordinate and the estimated finger area in a touch manner or a pressure manner when the detecting module detects that there is a finger touch.
Optionally, the scanning module comprises a scanning sub-module for scanning the array pixels line by line or in multiple lines based on the local sampling coordinates of the fingerprint.
Optionally, the apparatus further includes a second setting module, configured to set a local highlight area of the display screen by using the touch coordinate and the estimated finger area when the display screen is in a black screen state.
According to a third embodiment of the present disclosure, an electronic device is provided, which includes the fingerprint unlocking device according to the second embodiment of the present disclosure.
By adopting the technical scheme, the touch coordinate and the estimated finger area can be obtained under the condition that the finger touch is detected, then the local sampling coordinate of the fingerprint is set by utilizing the touch coordinate and the estimated finger area, and then the array pixel is scanned based on the local sampling coordinate of the fingerprint. This enables the acquisition of a fingerprint in only a partial area, and the fingerprint acquisition area is defined by the partial acquisition coordinates of the fingerprint, so that the acquisition exposure time can be reduced, the transmission time of the fingerprint image can be reduced, and the start and end positions of the fingerprint scan can be defined.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic interface diagram of a conventional block unlocking.
Fig. 2 is a flowchart illustrating a fingerprint unlocking method according to an embodiment of the present disclosure.
Fig. 3 illustrates an exemplary fingerprint unlock schematic interface diagram.
FIG. 4 is a schematic block diagram of a fingerprint unlocking device according to an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 2 shows a flowchart of a fingerprint unlocking method according to an embodiment of the present disclosure, as shown in fig. 2, the method includes the following steps S21 to S24.
In step S21, it is detected whether or not a finger is touched.
Wherein, whether a finger touches or not can be detected by using a touch sensor or a pressure sensor.
In step S22, when a finger touch is detected, acquiring touch coordinates and an estimated finger area;
in step S23, setting local sampling coordinates of the fingerprint using the touch coordinates and the estimated finger area; and
in step S24, array pixels are scanned based on the local sampling coordinates of the fingerprint.
By adopting the technical scheme, the touch coordinate and the estimated finger area can be obtained under the condition that the finger touch is detected, then the local sampling coordinate of the fingerprint is set by utilizing the touch coordinate and the estimated finger area, and then the array pixel is scanned based on the local sampling coordinate of the fingerprint. This enables the acquisition of a fingerprint in only a partial area, and the fingerprint acquisition area is defined by the partial acquisition coordinates of the fingerprint, so that the acquisition exposure time can be reduced, the transmission time of the fingerprint image can be reduced, and the start and end positions of the fingerprint scan can be defined.
In a possible implementation manner, the acquiring the touch coordinates and the estimated finger area in the case that the finger touch is detected in step S22 includes: and under the condition that the finger touch is detected, acquiring the touch coordinate and the estimated finger area by using a touch or pressure sensing mode. For example, a pressure of the finger touch may be sensed using a pressure sensor, and then touch coordinates and an estimated finger area may be acquired based on the sensed pressure.
In a possible implementation, the step S24 of scanning the array pixels based on the local sampling coordinates of the fingerprint includes: scanning the array pixels line-by-line or in multiple lines based on local sampling coordinates of the fingerprint. By scanning the array pixels, an unlock fingerprint image can be obtained.
In a possible implementation manner, the fingerprint unlocking method according to the embodiment of the present disclosure further includes: and under the condition that the display screen is in a black screen state, setting a local highlight area of the display screen by using the touch coordinate and the estimated finger area. Through setting up local high bright region, not only can realize the fingerprint unblock, but also can the power saving.
Fig. 3 illustrates an exemplary fingerprint unlock schematic interface diagram. As shown in fig. 3, the area a is a fingerprint sensing area, the area B is a fingerprint touch area sensed by a touch sensor or a pressure sensor, the area C is a fingerprint collecting area obtained by using the fingerprint touch area, coordinates of the fingerprint collecting area are obtained, and then the array pixels are scanned line by line or in multiple lines by using a position corresponding to the coordinates of the fingerprint collecting area, so that a fingerprint image of the area C can be finally obtained. The same applies if there are multiple fingers interpreting simultaneously.
Fig. 4 is a schematic block diagram of a fingerprint unlocking device according to an embodiment of the present disclosure, as shown in fig. 4, the device includes: a detection module 41, configured to detect whether there is a finger touch; the acquisition module is used for acquiring a touch coordinate and an estimated finger area under the condition that finger touch is detected; the first setting module is used for setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and a scanning module 44 for scanning the array pixels based on the local sampling coordinates of the fingerprint.
By adopting the technical scheme, the touch coordinate and the estimated finger area can be obtained under the condition that the finger touch is detected, then the local sampling coordinate of the fingerprint is set by utilizing the touch coordinate and the estimated finger area, and then the array pixel is scanned based on the local sampling coordinate of the fingerprint. This enables the acquisition of a fingerprint in only a partial area, and the fingerprint acquisition area is defined by the partial acquisition coordinates of the fingerprint, so that the acquisition exposure time can be reduced, the transmission time of the fingerprint image can be reduced, and the start and end positions of the fingerprint scan can be defined.
Optionally, the detection module 41 is a touch sensor or a pressure sensor.
Optionally, the obtaining module 42 includes an obtaining sub-module, configured to obtain the touch coordinate and the estimated finger area by using a touch or pressure sensing manner when the detecting module detects that there is a finger touch.
Optionally, the scanning module 44 includes a scanning sub-module for scanning the array pixels line by line or in multiple lines based on the local sampling coordinates of the fingerprint.
Optionally, the apparatus further includes a second setting module 44, configured to set a local highlight area of the display screen by using the touch coordinate and the estimated finger area when the display screen is in a black screen state.
According to a further embodiment of the present disclosure, there is provided an electronic device including the fingerprint unlocking apparatus according to the second embodiment of the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (11)
1. A fingerprint unlocking method, comprising:
detecting whether a finger touches;
under the condition that finger touch is detected, acquiring touch coordinates and an estimated finger area;
setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and
scanning array pixels based on local panel coordinates of the fingerprint.
2. The method of claim 1, wherein the detecting whether there is a finger touch comprises:
whether a finger touches or not is detected by a touch sensor or a pressure sensor.
3. The method of claim 1, wherein the obtaining touch coordinates and the estimated finger area in the case that the finger touch is detected comprises:
and under the condition that the finger touch is detected, acquiring the touch coordinate and the estimated finger area by using a touch or pressure sensing mode.
4. The method of claim 1, wherein scanning array pixels based on local panel coordinates of the fingerprint comprises:
scanning the array pixels line-by-line or in multiple lines based on local sampling coordinates of the fingerprint.
5. The method according to any one of claims 1 to 4, further comprising: and under the condition that the display screen is in a black screen state, setting a local highlight area of the display screen by using the touch coordinate and the estimated finger area.
6. A fingerprint unlocking device, comprising:
the detection module is used for detecting whether a finger touches the touch screen;
the acquisition module is used for acquiring a touch coordinate and an estimated finger area under the condition that finger touch is detected;
the first setting module is used for setting local sampling coordinates of the fingerprint by using the touch coordinates and the estimated finger area; and
a scanning module to scan the array pixels based on the local panel coordinates of the fingerprint.
7. The apparatus of claim 6, wherein the detection module is a touch sensor or a pressure sensor.
8. The apparatus according to claim 6, wherein the acquiring module includes an acquiring sub-module, configured to acquire the touch coordinates and the estimated finger area by touch or pressure when the detecting module detects a finger touch.
9. The apparatus of claim 6, wherein the scanning module comprises a scanning sub-module to scan the array pixels row-by-row or in multiple rows based on local sampling coordinates of the fingerprint.
10. The device according to any one of claims 6 to 8, further comprising a second setting module for setting a local highlight area of the display screen by using the touch coordinates and the estimated finger area when the display screen is in a black screen state.
11. An electronic device, characterized in that it comprises a fingerprint unlocking device according to any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457379.3A CN111259687A (en) | 2018-11-30 | 2018-11-30 | Fingerprint unlocking device and method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457379.3A CN111259687A (en) | 2018-11-30 | 2018-11-30 | Fingerprint unlocking device and method and electronic equipment |
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| CN111259687A true CN111259687A (en) | 2020-06-09 |
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| CN201811457379.3A Pending CN111259687A (en) | 2018-11-30 | 2018-11-30 | Fingerprint unlocking device and method and electronic equipment |
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| CN105095733A (en) * | 2015-07-28 | 2015-11-25 | 努比亚技术有限公司 | Screen display method and mobile terminal |
| CN106778461A (en) * | 2016-03-17 | 2017-05-31 | 深圳信炜科技有限公司 | Finger prints processing method, finger prints processing device, fingerprint recognition system and electronic equipment |
| WO2017156753A1 (en) * | 2016-03-17 | 2017-09-21 | 深圳信炜科技有限公司 | Fingerprint processing method, fingerprint processing device, fingerprint recognition system, and electronic device |
| CN108846271A (en) * | 2018-07-10 | 2018-11-20 | Oppo广东移动通信有限公司 | Apparatus control method, device, storage medium and electronic equipment |
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2018
- 2018-11-30 CN CN201811457379.3A patent/CN111259687A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095733A (en) * | 2015-07-28 | 2015-11-25 | 努比亚技术有限公司 | Screen display method and mobile terminal |
| CN106778461A (en) * | 2016-03-17 | 2017-05-31 | 深圳信炜科技有限公司 | Finger prints processing method, finger prints processing device, fingerprint recognition system and electronic equipment |
| WO2017156753A1 (en) * | 2016-03-17 | 2017-09-21 | 深圳信炜科技有限公司 | Fingerprint processing method, fingerprint processing device, fingerprint recognition system, and electronic device |
| CN108846271A (en) * | 2018-07-10 | 2018-11-20 | Oppo广东移动通信有限公司 | Apparatus control method, device, storage medium and electronic equipment |
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