CN102073858A - Fingerprint and palmprint acquisition instrument and acquisition method thereof - Google Patents

Fingerprint and palmprint acquisition instrument and acquisition method thereof Download PDF

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Publication number
CN102073858A
CN102073858A CN 201110024725 CN201110024725A CN102073858A CN 102073858 A CN102073858 A CN 102073858A CN 201110024725 CN201110024725 CN 201110024725 CN 201110024725 A CN201110024725 A CN 201110024725A CN 102073858 A CN102073858 A CN 102073858A
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China
Prior art keywords
local high
local
speed processor
high speed
low
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Pending
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CN 201110024725
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Chinese (zh)
Inventor
吕盼稂
尹玉
练国富
李端发
肖宁
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Hefei Junda Hi-Tech Information Technology Co., Ltd.
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Hefei Maizhi Mechanical-Electrical Science & Technology Co Ltd
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Priority to CN 201110024725 priority Critical patent/CN102073858A/en
Publication of CN102073858A publication Critical patent/CN102073858A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a fingerprint and palmprint acquisition instrument, which comprises a local high-speed processor. A signal input end of the local high-speed processor is connected with an image sensor. A signal output end of the local high-speed processor is respectively connected with a local display screen and a local high-speed storage. The signal output end of the local high-speed processor is connected with the local display screen through a low-speed transmission line. The invention also discloses an acquisition method of the fingerprint and palmprint acquisition instrument. In the invention, a function of previewing the acquisition process can be provided; the local high-speed processor extracts low-resolution images from acquired images and displays the low-resolution images on the local display screen or a PC (personnel computer); the qualities of the acquired images are previewed by the local display screen or the PC; and according to the previewed acquired images, the images with good imaging effect are selected for being stored. Therefore, the quality of acquisition of the fingerprint and palmprint images is improved and the aim that the acquired images and acquired gestures are synchronous is fulfilled.

Description

A kind of fingers and palms line Acquisition Instrument and acquisition method thereof
 
Technical field
The present invention relates to a kind of Acquisition Instrument, especially a kind of fingers and palms line Acquisition Instrument and acquisition method thereof.
 
Background technology
The police must satisfy<GA/T 864-2010 with live body palmmprint Acquisition Instrument〉standard, the dimensional requirement of its acquisition window is greater than 118.9mm * 183.9mm, and image pixel number requires greater than 2304 * 3584, and picking rate is greater than 2 frame/seconds.Acquisition Instrument is connected with PC by USB 2.0 high-speed interfaces or gigabit ethernet interface.Require actually on the PC to see that the image acquisition frequency that obtains is greater than 2 frame/seconds.Yet,, make for 2 frame/seconds to be difficult to collect desirable image by the image seen on the PC and asynchronous by the action of collection staff because acquisition target is the live body palmmprint.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of image of being gathered and synchronous fingers and palms line Acquisition Instrument of being gathered of gesture can realized.
For achieving the above object, the present invention has adopted following technical scheme: a kind of fingers and palms line Acquisition Instrument, comprise local high speed processor, the signal input part of local high speed processor links to each other with imageing sensor, the signal output part of local high speed processor links to each other with local high-speed memory with local display screen respectively, and the signal output part of described local high speed processor links to each other with local display screen by the low speed transmissions line.
The invention also discloses a kind of acquisition method of fingers and palms line Acquisition Instrument, this method comprises the step of following order:
(1) will need the finger position of gathering or palm position by on fingers and palms line Acquisition Instrument, local high speed processor obtains high-definition picture from imageing sensor;
(2) local high speed processor is processed into low-resolution image with above-mentioned high-definition picture, and is sent to local display screen;
(3) picture quality of local display screen preview low-resolution image, press when gathering button, local high speed processor stops images acquired, and will press and gather all palmmprint picture-storage of being collected in the duration at least 1 second before the button in local high-speed memory.
As shown from the above technical solution, the present invention can provide the gatherer process preview function, and institute's images acquired is extracted low-resolution image by local high speed processor and shown on local display screen or PC, by the picture quality of local display screen or PC preview collection.According to the images acquired of preview, choose the imaging effect better image again, store, improved the quality that the fingers and palms print image is gathered, realized image of being gathered and the synchronous purpose of gesture of being gathered.
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Description of drawings
Fig. 1 is a circuit block diagram of the present invention;
Fig. 2 is collecting flowchart figure of the present invention.
 
Embodiment
A kind of fingers and palms line Acquisition Instrument, comprise local high speed processor 2, the signal input part of local high speed processor 2 links to each other with imageing sensor, the signal output part of local high speed processor 2 links to each other with local high-speed memory 5 with local display screen 3 respectively, the signal output part of described local high speed processor 2 links to each other with local display screen 3 by the low speed transmissions line, as shown in Figure 1.
As shown in Figure 1, described imageing sensor adopts cmos image sensor 1, cmos image sensor 1 links to each other by the signal input part of high-speed transmission line with local high speed processor 2, described local high speed processor 2 links to each other with local high-speed memory 5 by high-speed transmission line, and described local high speed processor 2 is by low speed transmissions line and PC 4 communications.
As shown in Figure 1, 2, when gathering, at first, finger position or palm position that needs are gathered are pressed on fingers and palms line Acquisition Instrument, local high speed processor 2 obtains high-definition picture from imageing sensor; Secondly, local high speed processor 2 is processed into low-resolution image with above-mentioned high-definition picture, and is sent to local display screen 3; At last, the picture quality of local display screen 3 preview low-resolution images, press when gathering button, local high speed processor 2 stops images acquired, and will press and gather all palmmprint picture-storage of being collected in the duration at least 1 second before the button in local high-speed memory 5.
When the finger position that will need to gather or palm position by on fingers and palms line Acquisition Instrument the time, local high speed processor 2 is with the speed more than per second 10 frames, obtain high-definition picture from cmos image sensor 1, local high speed processor 2 is processed into low-resolution image with described high-definition picture, is sent to the low pixel image of preview on PC 4 and the local display screen 3 with identical frame frequency by the low speed transmissions line.The low-resolution image of handling through local high speed processor 2 is corresponding one by one with high-definition picture in being kept at local high-speed memory 5.
The frequency of image update makes it synchronous with the described people's gesture of being gathered greater than 10 frame/seconds of per second.And, preserved the above up-to-date low-resolution image of 10 frames on the PC 4.On PC 4, can browse all images, select a image the most satisfied, select satisfied image and then gather end, otherwise gather again.Behind select low-resolution image on the PC 4, can obtain the high-definition picture corresponding from local high-speed memory 5 with described low resolution.

Claims (7)

1. fingers and palms line Acquisition Instrument, it is characterized in that: comprise local high speed processor, the signal input part of local high speed processor links to each other with imageing sensor, the signal output part of local high speed processor links to each other with local high-speed memory with local display screen respectively, and the signal output part of described local high speed processor links to each other with local display screen by the low speed transmissions line.
2. fingers and palms line Acquisition Instrument according to claim 1, it is characterized in that: described imageing sensor adopts cmos image sensor, cmos image sensor links to each other with the signal input part of local high speed processor by high-speed transmission line, and described local high speed processor links to each other with local high-speed memory by high-speed transmission line.
3. fingers and palms line Acquisition Instrument according to claim 1 is characterized in that: described local high speed processor is by low speed transmissions line and PC communication.
4. the acquisition method of fingers and palms line Acquisition Instrument according to claim 1, this method comprises the step of following order:
(1) will need the finger position of gathering or palm position by on fingers and palms line Acquisition Instrument, local high speed processor obtains high-definition picture from imageing sensor;
(2) local high speed processor is processed into low-resolution image with above-mentioned high-definition picture, and is sent to local display screen;
(3) picture quality of local display screen preview low-resolution image, press when gathering button, local high speed processor stops images acquired, and will press and gather all palmmprint picture-storage of being collected in the duration at least 1 second before the button in local high-speed memory.
5. the acquisition method of fingers and palms line Acquisition Instrument according to claim 4, it is characterized in that: described imageing sensor adopts cmos image sensor, cmos image sensor links to each other with the signal input part of local high speed processor by high-speed transmission line, the signal output part of described local high speed processor links to each other with local display screen by the low speed transmissions line, described local high speed processor links to each other with local high-speed memory by high-speed transmission line, and described local high speed processor is by low speed transmissions line and PC communication.
6. the acquisition method of fingers and palms line Acquisition Instrument according to claim 5 is characterized in that:
When the finger position that will need to gather or palm position by on fingers and palms line Acquisition Instrument the time, local high speed processor is with the speed more than per second 10 frames, obtain high-definition picture from cmos image sensor, local high speed processor is processed into low-resolution image with described high-definition picture, is sent to the low pixel image of preview on PC and the local display screen with identical frame frequency by the low speed transmissions line.
7. the acquisition method of fingers and palms line Acquisition Instrument according to claim 4 is characterized in that:
The low-resolution image of handling through local high speed processor is corresponding one by one with high-definition picture in being kept at local high-speed memory.
CN 201110024725 2011-01-24 2011-01-24 Fingerprint and palmprint acquisition instrument and acquisition method thereof Pending CN102073858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110024725 CN102073858A (en) 2011-01-24 2011-01-24 Fingerprint and palmprint acquisition instrument and acquisition method thereof

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Application Number Priority Date Filing Date Title
CN 201110024725 CN102073858A (en) 2011-01-24 2011-01-24 Fingerprint and palmprint acquisition instrument and acquisition method thereof

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CN102073858A true CN102073858A (en) 2011-05-25

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103955686A (en) * 2014-05-15 2014-07-30 浙江师大计海新技术有限公司 Palm print collecting instrument
TWI474263B (en) * 2011-11-22 2015-02-21 Transcend Information Inc Method of executing software functions using biometric detection and related electronic device
CN108268851A (en) * 2018-01-24 2018-07-10 四川政安通科技有限公司 Online fingerprint collecting method
CN110135353A (en) * 2019-05-17 2019-08-16 北京海鑫高科指纹技术有限公司 A kind of method and system excluding victim and relevant people scene fingers and palms line

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201307293Y (en) * 2008-12-16 2009-09-09 张士娥 Embedded type fingerprint recognition system based on DSP
CN201477614U (en) * 2009-06-25 2010-05-19 格林比特(天津)生物信息技术有限公司 Single-reflecting liquid crystal touch screen fingerprint and palm print scanner
CN101917602A (en) * 2010-08-26 2010-12-15 四川大学 Digital video intelligent monitoring equipment based on high-resolution camera and data processing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201307293Y (en) * 2008-12-16 2009-09-09 张士娥 Embedded type fingerprint recognition system based on DSP
CN201477614U (en) * 2009-06-25 2010-05-19 格林比特(天津)生物信息技术有限公司 Single-reflecting liquid crystal touch screen fingerprint and palm print scanner
CN101917602A (en) * 2010-08-26 2010-12-15 四川大学 Digital video intelligent monitoring equipment based on high-resolution camera and data processing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI474263B (en) * 2011-11-22 2015-02-21 Transcend Information Inc Method of executing software functions using biometric detection and related electronic device
CN103955686A (en) * 2014-05-15 2014-07-30 浙江师大计海新技术有限公司 Palm print collecting instrument
CN108268851A (en) * 2018-01-24 2018-07-10 四川政安通科技有限公司 Online fingerprint collecting method
CN108268851B (en) * 2018-01-24 2021-09-14 广东德生科技股份有限公司 Online fingerprint acquisition method
CN110135353A (en) * 2019-05-17 2019-08-16 北京海鑫高科指纹技术有限公司 A kind of method and system excluding victim and relevant people scene fingers and palms line
CN110135353B (en) * 2019-05-17 2021-07-02 北京海鑫高科指纹技术有限公司 Method and system for eliminating field fingerprint and palm print of owner and related people

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Application publication date: 20110525