CN106067005A - Fingerprint recognition system processing method and fingerprint recognition system - Google Patents
Fingerprint recognition system processing method and fingerprint recognition system Download PDFInfo
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- CN106067005A CN106067005A CN201610385119.4A CN201610385119A CN106067005A CN 106067005 A CN106067005 A CN 106067005A CN 201610385119 A CN201610385119 A CN 201610385119A CN 106067005 A CN106067005 A CN 106067005A
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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
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Abstract
The invention discloses a kind of fingerprint recognition system processing method and fingerprint recognition system, design fingerprint identification technology field.The fingerprint recognition system processing method of the present invention includes: the first chip and the second chip gather the fingerprint image data of user；The described view data collected is sent to processing unit；Described processing unit processes the view data that two chips collect successively, and the view data after processing carries out splicing, to form fingerprint image.Owing to two partial array chips are spliced into large area array chip by fingerprint recognition system processing method of the present invention and fingerprint recognition system, after gathering view data respectively, fingerprint recognition image it is spliced into after focusing on again, make user after design partial array chip, without redesigning large area array chip, decrease design cost, die sinking cost and open time.
Description
Technical field
The present invention relates to fingerprint identification technology field, particularly relate to fingerprint recognition system processing method and fingerprint recognition system
System.
Background technology
In order to distinguish fingerprint, current Fingerprint Identification Unit can be largely classified into optical fingerprint evaluator and condenser type refers to
Stricture of vagina evaluator.Wherein, the fingerprint recognition chip of capacitance type fingerprint evaluator generally comprises the chip of partial array and the core of large area array
Sheet.
The chip of large area array is suitable on the market Fingerprint Identification Unit mostly, and it requires to identify accurately, typing number of times is few, its chip
The size of code of algorithm few, amount of calculation is few, when storing multiple fingerprint, data can be extracted in time and compare.And partial array
Chip is suitable for the mobile terminals such as mobile phone, and for precisely identifying, owing to the algorithm of its chip requires precision, and size of code is big, nothing
Method supports multiple fingerprints, and this algorithm cannot extract the chip of enough eigenvalues, i.e. partial array and be not suitable on the market precision mostly
Less demanding Fingerprint Identification Unit, so the chip of the chip of partial array and large area array cannot be substituted for each other.And due to partial array
The chip design of chip and large area array, die sinking etc. all differ, the flow cost of needs increases, and the expense of die sinking, die sinking
Time also can increase.
Summary of the invention
Present invention is primarily targeted at a kind of fingerprint recognition system processing method of offer and fingerprint recognition system, it is intended to subtract
The few open time of fingerprint recognition system, die sinking cost.
For achieving the above object, the present invention provides a kind of fingerprint recognition system processing method, it is characterised in that described fingerprint
Identification system processing method comprises the following steps:
First chip and the second chip gather the fingerprint image data of user；
The described view data collected is sent to processing unit；
Described processing unit processes the view data that two chips collect successively, and the view data after processing is spliced
Process；
Repeat above step, until forming complete fingerprint image.
Preferably, described processing unit processes the view data that two chips collect successively, including:
Distance between described first chip and described second chip is set to blank spot, and described processing unit processes first successively
Chip, blank spot, the view data of the second chip, and will process after view data carry out splicing, to form fingerprint image
Picture.
Preferably, described distance between described first chip and described second chip is set to blank spot, including:
The area of described blank spot is equal with the pixel point areas on described first chip and described chip, the row of described blank spot
Number equal with the columns of described pixel, between line number and described first chip and described second chip of described blank spot away from
From relevant.
Preferably, when the distance between described first chip and described second chip is the integral multiple of the described pixel length of side,
Distance between described first chip with described second chip is processed into equal with described pixel point areas by described processing unit
Blank spot, described processing unit processes the first chip, blank spot, the view data of the second chip successively, to form fingerprint image
Picture.
Preferably, the distance between described first chip and described second chip is more than the integral multiple of the described pixel length of side
Time, then the line number keeping described blank spot is equal with this multiple, and increases the width of every line space white point, with by described first chip
And the distance between described second chip is divided into the integral multiple of the described pixel length of side, described processing unit processes the first core successively
Sheet, blank spot, the view data of the second chip, to form fingerprint image.
Preferably, the line number of the described blank spot of described holding is equal with this multiple, and increases the width of the often described blank spot of row,
Including:
When distance between described first chip and described second chip is more than the integral multiple of the described pixel length of side, this is big
Part in described pixel length of side integral multiple is equally divided into blank spot line number part, so that described first chip and described second core
Distance between sheet is treated to be similar to the blank spot of described pixel.
Preferably, described repetition step includes:
User constantly moves finger and described first chip and the relative position of the acquisition zone of described second chip, so that described
One chip and described second chip collect complete fingerprint image data.
The present invention also provides for a kind of fingerprint recognition system, including the first chip arranged on the same substrate and the second chip, institute
State the first chip and described second chip is connected to processor, and the view data both collected is sent to processor
Process.
Preferably, described processor also includes concatenation unit, and the view data after processing is spliced, to form fingerprint
Image.
Compared with prior art, the invention has the beneficial effects as follows: owing to fingerprint recognition system processing method of the present invention and fingerprint are known
Two partial array chips are spliced into large area array chip by other system, after gathering view data respectively, then are spliced into after focusing on
Fingerprint recognition image so that user design partial array chip after, it is not necessary to redesign large area array chip, decrease design cost,
Die sinking cost and open time.
Accompanying drawing explanation
Fig. 1 is the principle schematic of fingerprint recognition system processing method of the present invention；
Fig. 2 is fingerprint recognition system structural representation of the present invention；
Fig. 3 is the enlarged diagram of A in Fig. 2；
Fig. 4 is the blank parts schematic diagram between the present invention the first chip and the second chip.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, the fingerprint recognition system processing method of the present invention, comprise the following steps:
S1, the first chip 2 and the second chip 3 gather the fingerprint image data of user；
The fingerprint recognition system of the present invention is spliced by the chip of two partial arrays, gathers the finger of user the most simultaneously
Stricture of vagina information.Face battle array owing to being spliced adds area simultaneously, is more applicable for the finger shape of user so that gather fingerprint
Information is more complete, accurately.
S2, the described view data collected is sent to processing unit；
In fingerprint recognition system, being provided with a processing unit, described processing unit is specifically as follows MCU, i.e. two partial arrays
Chip be connected with a MCU simultaneously.This MCU uses large area array algorithm, i.e. feature based value-based algorithm so that fingerprint recognition system
When processing view data, amount of calculation is less, and user's number of times when typing fingerprint is less simultaneously.
S3, processing unit process the view data that two chips collect successively, including:
S31, as shown in Figure 4, is set to blank spot, described process by the distance between described first chip 2 and described second chip 3
Unit processes the first chip 2, blank spot, the view data of the second chip 3 successively, and the view data after processing is spliced
Process, to form fingerprint image.
Owing to the chip in the fingerprint recognition system of the present invention is to be spelled by the fingerprint recognition chip of two partial arrays to form,
In technique, between two chips, have a micron-sized gap, as it is shown on figure 3, between the i.e. first chip 2 and the second chip 3
Distance D.When processing unit processes view data, first process the view data that the first chip 2 gathers, then process two cores
Blank parts between sheet, finally reprocesses the view data that the second chip 3 gathers.
In a specific embodiment, the distance between described first chip 2 and described second chip 3 is set to blank spot,
Including:
Pixel point areas on the area of blank spot and the first chip 2 and the second chip 3 is equal, the columns of described blank spot and institute
The columns stating pixel is equal, the distance phase between the line number of described blank spot with described first chip 2 and described second chip 3
Close.
As shown in Figure 3, Figure 4, fingerprint recognition system processing method of the present invention is by between the first chip 2 and the second chip 3
Distance is divided into the blank spot equal with pixel point areas so that processor process between two chips blank time, identified
Pickup area for pixel, i.e. this fingerprint recognition system corresponds to respectively: the pickup area of the first chip 2, second chip 3
Blank parts between pickup area, and the first chip 2 and the second chip 3.
Specifically, in one embodiment, the distance between described first chip 2 and described second chip 3 is described picture
During the integral multiple of the vegetarian refreshments length of side, the distance between described first chip 2 and described second chip 3 is processed into by described processing unit
The blank spot equal with described pixel point areas, described processing unit processes the first chip 2, blank spot, second chip 3 successively
View data, to form fingerprint image.As shown in Figure 4, if the length of side of pixel is d, work as D=N*d, i.e. between two chips
When blank parts just can be filled by the most several blank spots, then processor is directly with the first chip 2, blank parts, the second core
The order of sheet 3 reads respectively, processes view data.
In another embodiment, the distance between described first chip 2 and described second chip 3 is more than described pixel
During the integral multiple of the length of side, then the line number keeping described blank spot is equal with this multiple, and increases the width of every line space white point, with will
Distance between described first chip 2 and described second chip 3 is divided into the integral multiple of the described pixel length of side, described processing unit
Process the first chip 2, blank spot, the view data of the second chip 3 successively, to form fingerprint image.When D=N*d+ △, △ < d,
When i.e. the distance between two chips is indivisible with the pixel length of side, then △ is divided into N row, so, the blank spot often gone is increased
Add the width of △/N, blank parts can be reduced due to the error brought.
Specifically, the line number keeping described blank spot is equal with this multiple, and increases the width of the often described blank spot of row,
Including:
When distance between described first chip 2 and described second chip 3 is more than the integral multiple of the described pixel length of side, should
It is equally divided into blank spot line number part more than the part of described pixel length of side integral multiple, so that described first chip 2 and described the
Distance between two chips 3 is treated to be similar to the blank spot of described pixel.That is, △ is divided into N row, so that each
Blank spot area is suitable.
S4, will process after view data carry out splicing；
When carrying out splicing, the top half of fingerprint image and the latter half can form complete fingerprint image, two cores
The part that cannot read between sheet is denoted as blank parts.
S5, repetition S1 ~ S4, until forming complete fingerprint image.
Described repetition step includes: user constantly moves finger and described first chip 2 and the collection of described second chip 3
The relative position in district, so that described first chip 2 and described second chip 3 collect complete fingerprint image data.Due to two
The blank parts that individual chip is spliced to form, when registered fingerprint, only need to repeatedly move finger, i.e. may be read into chip for the first time
The part that cannot read, to form complete fingerprint image.
The present invention also provides for a kind of fingerprint recognition system, as shown in Figure 2 and Figure 3, including the first core being arranged on same substrate 1
Sheet 2 and the second chip 3, described first chip 2 and described second chip 3 are connected to processor, and both are collected
View data is sent to processor and processes.
In certain embodiments, processor also includes concatenation unit, and the view data after processing is spliced, with
Form fingerprint image.
It should be appreciated that these are only the preferred embodiments of the present invention, it is impossible to therefore limit the scope of the claims of the present invention,
Every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion, or be directly or indirectly used in
Other relevant technical fields, are the most in like manner included in the scope of patent protection of the present invention.
Claims (9)
1. a fingerprint recognition system processing method, it is characterised in that described fingerprint recognition system processing method includes following step
Rapid:
First chip and the second chip gather the fingerprint image data of user；
The described view data collected is sent to processing unit；
Described processing unit processes the view data that two chips collect successively, and the view data after processing is spliced
Process；
Repeat above step, until forming complete fingerprint image.
Fingerprint recognition system processing method the most according to claim 1, it is characterised in that described processing unit processes successively
The view data that two chips collect, including:
Distance between described first chip and described second chip is set to blank spot, and described processing unit processes first successively
Chip, blank spot, the view data of the second chip, and will process after view data carry out splicing, to form fingerprint image
Picture.
Fingerprint recognition system processing method the most according to claim 2, it is characterised in that described by described first chip with
Distance between described second chip is set to blank spot, including:
The area of described blank spot is equal with the pixel point areas on described first chip and described second chip, described blank spot
Columns equal with the columns of described pixel, between line number and described first chip and described second chip of described blank spot
Distance be correlated with.
Fingerprint recognition system processing method the most according to claim 3, it is characterised in that when described first chip is with described
When distance between second chip is the integral multiple of the described pixel length of side, described processing unit by described first chip with described
Distance between second chip is processed into the blank spot equal with described pixel point areas, and described processing unit processes first successively
Chip, blank spot, the view data of the second chip, to form fingerprint image.
Fingerprint recognition system processing method the most according to claim 3, it is characterised in that when described first chip is with described
When distance between second chip is more than the integral multiple of the described pixel length of side, then keep line number and this multiple of described blank spot
Equal, and increase the width of every line space white point, described so that the distance between described first chip and described second chip is divided into
The integral multiple of the pixel length of side, described processing unit processes the first chip, blank spot, the view data of the second chip successively, with
Form fingerprint image.
Fingerprint recognition system processing method the most according to claim 5, it is characterised in that the described blank spot of described holding
Line number is equal with this multiple, and increases the width of the often described blank spot of row, including:
When distance between described first chip and described second chip is more than the integral multiple of the described pixel length of side, this is big
Part in described pixel length of side integral multiple is equally divided into blank spot line number part, so that described first chip and described second core
Distance between sheet is treated to be similar to the blank spot of described pixel.
Fingerprint recognition system processing method the most according to claim 1, it is characterised in that described repetition step includes:
User constantly moves finger and described first chip and the relative position of the acquisition zone of described second chip, so that described
One chip and described second chip collect complete fingerprint image data.
8. a fingerprint recognition system, it is characterised in that described fingerprint recognition system includes arranging first on the same substrate
Chip and the second chip, described first chip and described second chip are connected to processor, and the figure both collected
Process as data are sent to processor.
Fingerprint recognition system the most according to claim 8, it is characterised in that described processor also includes concatenation unit, uses
View data after processing is spliced, to form fingerprint image.
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| CN201610385119.4A CN106067005A (en) | 2016-06-03 | 2016-06-03 | Fingerprint recognition system processing method and fingerprint recognition system |
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| CN201610385119.4A CN106067005A (en) | 2016-06-03 | 2016-06-03 | Fingerprint recognition system processing method and fingerprint recognition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111914593A (en) * | 2019-05-08 | 2020-11-10 | 上海耕岩智能科技有限公司 | Image acquisition method and device, storage medium and electronic equipment |
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