CN108182399A - Refer to vein characteristic comparison method, apparatus, storage medium and processor - Google Patents
Refer to vein characteristic comparison method, apparatus, storage medium and processor Download PDFInfo
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- CN108182399A CN108182399A CN201711443496.XA CN201711443496A CN108182399A CN 108182399 A CN108182399 A CN 108182399A CN 201711443496 A CN201711443496 A CN 201711443496A CN 108182399 A CN108182399 A CN 108182399A
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- 210000003462 vein Anatomy 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000003860 storage Methods 0.000 title claims abstract description 17
- 239000013598 vector Substances 0.000 claims abstract description 72
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 16
- 230000002708 enhancing effect Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 239000013604 expression vector Substances 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 3
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- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
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- 241000894007 species Species 0.000 description 1
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- 230000000007 visual effect Effects 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/44—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
- G06V10/443—Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components by matching or filtering
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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
- G06V40/14—Vascular patterns
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Abstract
Description
Claims (10)
- A kind of 1. finger vein characteristic comparison method, which is characterized in that include the following steps:The finger vein image of input is pre-processed;Processing is carried out using the pretreated image of Gabor function pairs and obtains Gabor vector characteristics;Dimension-reduction treatment is carried out to the Gabor vector characteristics of acquisition;The extraction of binaryzation Gabor Gradient Features is carried out to the Gabor vector characteristics after dimensionality reduction:By calculating under different frequency parameter The gradient of Gabor coefficients at corresponding direction, and Grad two-value is turned to " 0 ", " 1 " value by the sign symbol according to Grad, so Corresponding value is placed in afterwards in the corresponding completely new vector of component positions indexed by block coordinate, frequency, directioin parameter, generation two The completely new vector characteristic of system expression;Aspect ratio pair is carried out to the completely new vector characteristic of binary expression and exports comparison result.
- 2. finger vein characteristic comparison method according to claim 1, which is characterized in that the finger vein image of described pair of input The step of being pre-processed includes:The finger vein image of input is filtered and finger edge positions;Region cutting is carried out to input picture according to finger edge location information to obtain the subgraph of effective vein texture region;Enhancing is done to the subgraph after cutting and obtains curvature enhancing figure.
- 3. finger vein characteristic comparison method according to claim 2, which is characterized in that described to be adopted to pretreated image The step of processing obtains Gabor vector characteristics is carried out with Gabor filter to include:Curvature enhancing figure is normalized into master pattern size;The frequency parameter and directioin parameter of Gabor functions are defined, this group of parameter is substituted into Gabor function formulas, obtains corresponding ginseng Gabor convolutional filtering coefficients under several;The stepped parameter of defined feature extraction block both horizontally and vertically;Each block in traversal curvature enhancing figure under stepped parameter guiding, and using Gabor volumes be obtained ahead of time in each block Product filter factor carries out the Gabor characteristic under convolutional calculation respective frequencies, directioin parameter;Each block is calculated to the Gabor characteristic obtained and is connected in series generation Gabor vector characteristics.
- 4. finger vein characteristic comparison method according to claim 3, which is characterized in thatThe frequency parameter is set as 7;The directioin parameter is set as 16.
- 5. finger vein characteristic comparison method according to claim 3, which is characterized in that the Gabor vectors of described pair of acquisition The step of feature progress dimension-reduction treatment, includes:Each block in curvature enhancing figure by even distribution pattern is selected, filters out Partial Block feature;Down-sampling is carried out according to direction initialization parameter to remaining Block Characteristic, forms the Gabor vector characteristics after new dimensionality reduction.
- 6. finger vein characteristic comparison method according to claim 5, which is characterized in that the Gabor to after dimensionality reduction is sweared The step of measure feature progress binaryzation Gabor Gradient Features extractions, includes:Calculate the gradient of two neighboring coefficient under same frequency parameter, and binaryzation;Calculate the complex gradient value that two coefficient sums of neighbour are corresponded under different frequency parameter, and binaryzation;By sequentially calculating the binaryzation Gabor Grad of adjacent coefficient under single frequency in each frequency parameter, each frequency of recombinant In rate parameter under neighbour's frequency parameter adjacent coefficient sum complex gradient binary value, obtain by block coordinate, frequency parameter, side To the completely new vector characteristic of the binary expression of parameter reference.
- 7. finger vein characteristic comparison method according to claim 1, which is characterized in that described to the completely new of binary expression Vector characteristic carries out aspect ratio pair and includes the step of exporting comparison result:Two width recognition target images are carried out in the completely new vector characteristic after binaryzation with " 0 " in corresponding position, " 1 " occur it is identical Number is counted, and is changed into the similarity value of two width recognition target images under normalization operation;Judge and export comparison result, similarity value is converted to the score value between 0 to the 1 of real number expression, forms final ratio To result score, then by score value compared with predetermined threshold value, same target is then considered more than predetermined threshold value, is otherwise foreign peoples's mesh Mark.
- 8. a kind of finger vein characteristic comparison device, which is characterized in that including:Preprocessing module (100) pre-processes for the finger vein image to input;Gabor characteristic extraction module (200) obtains Gabor for carrying out processing using Gabor functions to pretreated image Vector characteristic;Gabor characteristic dimensionality reduction module (300), for carrying out dimension-reduction treatment to the Gabor vector characteristics of acquisition;Binaryzation Gabor Gradient Features extraction module (400), for carrying out binaryzation to the Gabor vector characteristics after dimensionality reduction Gabor Gradient Features extract:By calculating the gradient of Gabor coefficients at corresponding direction under different frequency parameter, and according to gradient Grad two-value is turned to " 0 ", " 1 " value by the sign symbol of value, and then corresponding value is placed in by block coordinate, frequency, direction In the corresponding completely new vector of component positions of parameter reference, the completely new vector characteristic of binary expression is generated;Output module (500) is compared, for carrying out aspect ratio pair to the completely new vector characteristic of binary expression and exporting comparison knot Fruit.
- 9. a kind of storage medium, the storage medium includes the program of storage, which is characterized in that described program controls institute when running Equipment where stating storage medium performs the finger vein characteristic comparison method as described in claim 1 to 7 is any.
- 10. a kind of processor, the processor is used to run program, which is characterized in that is performed during the processor operation as weighed Profit requires 1 to 7 any finger vein characteristic comparison method.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109543580A (en) * | 2018-11-15 | 2019-03-29 | 北京智慧眼科技股份有限公司 | Refer to vena characteristic extracting method, comparison method, storage medium and processor |
CN109800702A (en) * | 2019-01-16 | 2019-05-24 | 北京智慧眼科技股份有限公司 | Refer to the rapid comparison method and computer-readable storage medium of hand vein recognition |
CN109903444A (en) * | 2019-03-29 | 2019-06-18 | 深圳市威富视界有限公司 | Refer to vein lock and its control method |
CN110348289A (en) * | 2019-05-27 | 2019-10-18 | 广州中国科学院先进技术研究所 | A kind of finger vein identification method based on binary map |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109543580A (en) * | 2018-11-15 | 2019-03-29 | 北京智慧眼科技股份有限公司 | Refer to vena characteristic extracting method, comparison method, storage medium and processor |
CN109800702A (en) * | 2019-01-16 | 2019-05-24 | 北京智慧眼科技股份有限公司 | Refer to the rapid comparison method and computer-readable storage medium of hand vein recognition |
CN109800702B (en) * | 2019-01-16 | 2021-01-26 | 智慧眼科技股份有限公司 | Quick comparison method for finger vein identification and computer readable storage medium |
CN109903444A (en) * | 2019-03-29 | 2019-06-18 | 深圳市威富视界有限公司 | Refer to vein lock and its control method |
CN110348289A (en) * | 2019-05-27 | 2019-10-18 | 广州中国科学院先进技术研究所 | A kind of finger vein identification method based on binary map |
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Denomination of invention: Finger vein feature comparison method, device, storage medium and processor Effective date of registration: 20221205 Granted publication date: 20200421 Pledgee: Agricultural Bank of China Limited Hunan Xiangjiang New Area Branch Pledgor: Wisdom Eye Technology Co.,Ltd. Registration number: Y2022430000107 |
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Address after: No. 205, Building B1, Huigu Science and Technology Industrial Park, No. 336 Bachelor Road, Bachelor Street, Yuelu District, Changsha City, Hunan Province, 410000 Patentee after: Wisdom Eye Technology Co.,Ltd. Address before: 410205 building 14, phase I, Changsha Zhongdian Software Park, No. 39, Jianshan Road, Changsha high tech Development Zone, Yuelu District, Changsha City, Hunan Province Patentee before: Wisdom Eye Technology Co.,Ltd. |
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