CN107103287A - Iris capturing system processing method and iris capturing system - Google Patents
Iris capturing system processing method and iris capturing system Download PDFInfo
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- CN107103287A CN107103287A CN201710207251.0A CN201710207251A CN107103287A CN 107103287 A CN107103287 A CN 107103287A CN 201710207251 A CN201710207251 A CN 201710207251A CN 107103287 A CN107103287 A CN 107103287A
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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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Eye Examination Apparatus (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a kind of iris capturing system processing method and iris capturing system, iris capturing technical field is designed.The iris capturing system processing method of the present invention includes：First chip and the second chip gather the retinal image data of user；The described image data collected are sent to processing unit；The processing unit handles the view data that two chips are collected successively, and the view data after processing is carried out into splicing, to form retinal images.Because two partial array chips are spliced into large area array chip by iris capturing system processing method of the present invention and iris capturing system, respectively after collection view data, iris capturing image is spliced into after focusing on again, so that user is after design partial array chip, large area array chip need not be redesigned, design cost, die sinking cost and open time is reduced.
Description
Technical field
The present invention relates to iris capturing technical field, more particularly to iris capturing system processing method and iris capturing system
System.
Background technology
In order to distinguish iris, current iris capturing device can be largely classified into optical profile type iris capturing device and condenser type rainbow
Film collector.Wherein, the iris capturing chip of condenser type iris capturing device generally comprises the chip of partial array and the core of large area array
Piece.
The chip of large area array is adapted to iris capturing device most on the market, and it requires to recognize that accurate, typing number of times is few, its chip
Algorithm size of code is few, amount of calculation is few, when storing multiple irises, data can be extracted in time and be compared.And partial array
Chip is adapted to the mobile terminals such as mobile phone, for precisely recognizing, because the algorithm of its chip requires precision, and size of code is big, nothing
Method supports multiple irises, and the chip that the algorithm can not extract enough characteristic values, i.e. partial array is not suitable for precision most on the market
Less demanding iris capturing device, so the chip of partial array and the chip of large area array can not be substituted for each other.And due to partial array
Chip and large area array chip design, die sinking etc. differ, it is necessary to flow cost increase, and die sinking expense, die sinking
Time can also increase.
The content of the invention
It is a primary object of the present invention to provide a kind of iris capturing system processing method and iris capturing system, it is intended to subtract
The open time of few iris capturing system, die sinking cost.
To achieve the above object, the present invention provides a kind of iris capturing system processing method, it is characterised in that the iris
Acquisition system processing method comprises the following steps：
First chip and the second chip gather the retinal image data of user；
The described image data collected are sent to processing unit；
The processing unit handles the view data that two chips are collected successively, and the view data after processing is spliced
Processing；
Above step is repeated, until forming complete retinal images.
Preferably, the processing unit handles the view data that two chips are collected successively, including：
The distance between first chip and described second chip are set to blank spot, the processing unit handles first successively
Chip, blank spot, the view data of the second chip, and the view data after processing is subjected to splicing, to form retina
Image.
Preferably, it is described that the distance between first chip and described second chip are set to blank spot, including：
The area of the blank spot is equal with the pixel point areas on first chip and the chip, the row of the blank spot
Number it is equal with the columns of the pixel, between the line number of the blank spot and first chip and second chip away from
From correlation.
Preferably, when the distance between first chip and second chip are the integral multiples of the pixel length of side
When, the distance between first chip and described second chip are processed into and the pixel point areas phase by the processing unit
Deng blank spot, the processing unit handles the first chip, blank spot, the view data of the second chip successively, to form view
Film image.
Preferably, when the distance between first chip and second chip are more than the integer of the pixel length of side
Times when, then keep the line number of the blank spot equal with the multiple, and increase the width per line blank point, by first core
The distance between piece and second chip are divided into the integral multiple of the pixel length of side, and the processing unit handles first successively
Chip, blank spot, the view data of the second chip, to form retinal images.
Preferably, the line number for keeping the blank spot is equal with the multiple, and increases the blank spot often gone
Width, including：
It is when the distance between first chip and second chip are more than the integral multiple of the pixel length of side, this is big
Blank spot line number part is equally divided into the part of the pixel length of side integral multiple, so that first chip and second core
The distance between piece is treated as being similar to the blank spot of the pixel.
Preferably, the repeat step includes：
User constantly moves the relative position of the acquisition zone of finger and first chip and second chip, so that described the
One chip and second chip collect complete retinal image data.
The present invention also provides a kind of iris capturing system, including sets the first chip and the second core on the same substrate
Piece, first chip and second chip are connected to processor, and the view data that both collect is sent to
Processor is handled.
Preferably, the processor also includes concatenation unit, for the view data after processing to be spliced, to be formed
Retinal images.
Compared with prior art, the beneficial effects of the invention are as follows：Due to iris capturing system processing method of the present invention and rainbow
Two partial array chips are spliced into large area array chip by film acquisition system, are gathered respectively after view data, then are spelled after focusing on
It is connected into iris capturing image so that user, without redesigning large area array chip, reduces and is designed to after design partial array chip
Originally, die sinking cost and open time.
Brief description of the drawings
Fig. 1 is the principle schematic of iris capturing system processing method of the present invention；
Fig. 2 is iris capturing system structure diagram of the present invention；
The enlarged diagram that Fig. 3 is A in Fig. 2；
Fig. 4 is the blank parts schematic diagram between the first chip of the invention and the second chip.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it 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, iris capturing system processing method of the invention, comprises the following steps：
S1, the first chip 2 and the second chip 3 gather the retinal image data of user；
The iris capturing system of the present invention is spliced by the chip of two partial arrays, gathers the rainbow of user simultaneously when in use
Film information.Face battle array due to being spliced is more applicable for the finger shape of user so that gather iris while add area
Information is more complete, accurate.
S2, the described image data collected are sent to processing unit；
In iris capturing system, provided with a processing unit, the processing unit is specifically as follows the partial array of MCU, i.e., two
Chip simultaneously be connected with a MCU.The MCU uses large area array algorithm, i.e. feature based value-based algorithm so that iris capturing system
When handling view data, amount of calculation is less, while number of times of the user in typing iris is less.
S3, processing unit handle the view data that two chips are collected successively, including：
S31, as shown in figure 4, the distance between first chip 2 and described second chip 3 are set into blank spot, the processing
Unit handles the first chip 2, blank spot, the view data of the second chip 3 successively, and the view data after processing is spliced
Processing, to form retinal images.
Because the chip in the iris capturing system of the present invention is to be spelled to form by the iris capturing chip of two partial arrays,
In technique, a micron-sized gap is had between two chips, as shown in figure 3, between i.e. the first chip 2 and the second chip 3
Apart from D.In processing unit processes view data, the view data of the first chip 2 collection is handled first, two cores are then handled
Blank parts between piece, finally reprocess the view data of the second chip 3 collection.
In a specific embodiment, the distance between first chip 2 and described second chip 3 are set to blank spot,
Including：
The area of blank spot is equal with the pixel point areas on the first chip 2 and the second chip 3, the columns of the blank spot and institute
The columns for stating pixel is equal, the line number of the blank spot and the distance between first chip 2 and second chip 3 phase
Close.
As shown in Figure 3, Figure 4, iris capturing 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 is recognized in the blank between handling two chips
For pixel, i.e. the pickup area of the iris capturing system is corresponded to respectively：The pickup area of 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, when the distance between first chip 2 and second chip 3 are the pictures
During the integral multiple of the vegetarian refreshments length of side, the distance between first chip 2 and described second chip 3 are processed into by the processing unit
The blank spot equal with the pixel point areas, the processing unit handles the first chip 2, blank spot, second chip 3 successively
View data, to form retinal images.As shown in figure 4, the length of side of pixel is set as d, as D=N*d, i.e., when between two chips
Blank parts when can just be filled by several blank spots more, then processor is directly with the first chip 2, blank parts, second
The order of chip 3 reads, handles view data respectively.
In another embodiment, when the distance between first chip 2 and second chip 3 are more than the pixel
During the integral multiple of the length of side, then keep the line number of the blank spot equal with the multiple, and increase the width per line blank point, will
The distance between first chip 2 and second chip 3 are divided into the integral multiple of the pixel length of side, the processing unit
The first chip 2, blank spot, the view data of the second chip 3 are handled successively, to form retinal images.As D=N*d+ △, △<
D, i.e., be then N rows by △ points, so, by the blank spot of every row when the distance between two chips and the indivisible pixel length of side
Increase △/N width, you can reduce blank parts due to the error brought.
Specifically, keep the line number of the blank spot equal with the multiple, and the width of the often capable blank spot of increase,
Including：
When the distance between first chip 2 and second chip 3 are more than the integral multiple of the pixel length of side, by this
Part more than the pixel length of side integral multiple is equally divided into blank spot line number part, so that first chip 2 and described the
The distance between two chips 3 are treated as being similar to the blank spot of the pixel.That is, △ is divided into N rows, so that each
Blank spot area is suitable.
S4, by after processing view data carry out splicing；
When carrying out splicing, the top half of retinal images and the latter half can form complete retinal images,
The part that can not be read between two chips is denoted as blank parts.
S5, repetition S1 ~ S4, until forming complete retinal images.
The repeat step includes：User constantly moves the collection of finger and first chip 2 and second chip 3
The relative position in area, so that first chip 2 and second chip 3 collect complete retinal image data.Due to
The blank parts that two chips are spliced to form, when registering iris, only need to repeatedly move finger, you can read chip first
The secondary part that can not be read, to form complete retinal images.
The present invention also provides a kind of iris capturing system, as shown in Figure 2 and Figure 3, including the be arranged on same substrate 1
One chip 2 and the second chip 3, first chip 2 and second chip 3 are connected to processor, and both are gathered
To view data be sent to processor and handled.
In certain embodiments, processor also includes concatenation unit, for the view data after processing to be spliced, to be formed
Retinal images.
It should be appreciated that these are only the preferred embodiments of the present invention, it is impossible to therefore the scope of the claims of the limitation present invention,
Equivalent structure or equivalent flow conversion that every utilization description of the invention and accompanying drawing content are made, or be directly or indirectly used in
Other related technical fields, are included within the scope of the present invention.
Claims (9)
1. a kind of iris capturing system processing method, it is characterised in that the iris capturing system processing method includes following step
Suddenly：First chip and the second chip gather the retinal image data of user；The described image data collected are sent to place
Manage unit；The processing unit handles the view data that two chips are collected successively, and the view data after processing is carried out
Splicing；Above step is repeated, until forming complete retinal images.
2. iris capturing system processing method according to claim 1, it is characterised in that the processing unit is handled successively
The view data that two chips are collected, including：The distance between first chip and described second chip are set to blank
Point, the processing unit handles the first chip, blank spot, the view data of the second chip successively, and by the picture number after processing
According to splicing is carried out, to form retinal images.
3. iris capturing system processing method according to claim 2, it is characterised in that it is described by first chip with
The distance between described second chip is set to blank spot, including：The area of the blank spot and first chip and described the
Pixel point areas on two chips is equal, and the columns of the blank spot is equal with the columns of the pixel, the blank spot
Line number is related to the distance between first chip and second chip.
4. iris capturing system processing method according to claim 3, it is characterised in that when first chip with it is described
When the distance between second chip is the integral multiple of the pixel length of side, the processing unit by first chip with it is described
The distance between second chip is processed into the blank spot equal with the pixel point areas, and the processing unit handles first successively
Chip, blank spot, the view data of the second chip, to form retinal images.
5. iris capturing system processing method according to claim 3, it is characterised in that when first chip with it is described
When the distance between second chip is more than the integral multiple of the pixel length of side, then the line number and the multiple of the blank spot are kept
It is equal, and increase the width per line blank point, the distance between first chip and described second chip are divided into described
The integral multiple of the pixel length of side, the processing unit handles the first chip, blank spot, the view data of the second chip successively, with
Form retinal images.
6. iris capturing system processing method according to claim 5, it is characterised in that the holding blank spot
Line number is equal with the multiple, and increases the width of the often blank spot of row, including：When first chip and second core
When the distance between piece is more than the integral multiple of the pixel length of side, the part for being more than the pixel length of side integral multiple is put down
Be divided into blank spot line number part so that the distance between first chip and described second chip be treated as being similar to it is described
The blank spot of pixel.
7. iris capturing system processing method according to claim 1, it is characterised in that the repeat step includes：With
Finger and first chip and the relative position of the acquisition zone of second chip are constantly moved in family, so that first chip
Complete retinal image data is collected with second chip.
8. a kind of iris capturing system, it is characterised in that the iris capturing system includes setting first on the same substrate
Chip and the second chip, first chip and second chip are connected to processor, and the figure that both are collected
Handled as data are sent to processor.
9. iris capturing system according to claim 8, it is characterised in that the processor also includes concatenation unit, is used
View data after by processing is spliced, to form retinal images.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207251.0A CN107103287A (en) | 2017-03-31 | 2017-03-31 | Iris capturing system processing method and iris capturing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207251.0A CN107103287A (en) | 2017-03-31 | 2017-03-31 | Iris capturing system processing method and iris capturing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107103287A true CN107103287A (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710207251.0A Withdrawn CN107103287A (en) | 2017-03-31 | 2017-03-31 | Iris capturing system processing method and iris capturing system |
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| CN (1) | CN107103287A (en) |
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2017
- 2017-03-31 CN CN201710207251.0A patent/CN107103287A/en not_active Withdrawn
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