A BIOMETRIC RECOGNITION SYSTEM FOR HUMAN

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International Journal of Emerging Trends in Engineering and Development. Issue 7, Vol. ... automobiles, employee's time details and attendance checking system, computer and network ..... Processing, RFID, Biometric Recognition System.
International Journal of Emerging Trends in Engineering and Development Available online on http://www.rspublication.com/ijeted/ijeted_index.htm

Issue 7, Vol. 2 (March 2017) ISSN 2249-6149

A BIOMETRIC RECOGNITION SYSTEM FOR HUMAN IDENTIFICATION USING FINGER VEIN PATTERNS Shiny Chandra Bai .P, PG Scholar, Anna University Regional Campus-Tirunelveli, Tamilnadu, India A. Jerwin Prabu, Head of Technology, Department of Robotics, Bharati Robotic Systems, India.

ABSTRACT Keeping the private information more secure and safer, it has become a challenging part. The biometrics, which uses human physiological or behavioural features for personal identification is a promising alternative for protecting the private information. There are many types of biometric patterns, but no biometric is perfectly reliable or secure. The vein pattern is hidden inside the body and hence human eyes cannot view the vein pattern. By this, the problem of forgery can be reduced. A new quality estimation algorithm is proposed to estimate the quality of vein and the vein image is enhanced using multi scale matched filtering. For vein extraction, information provided by the enhanced image and the vein quality is consolidated using SVM classifier. The proposed vein extraction can handle the issues of hair, skin texture and variable veins widths so as to extract the genuine veins accurately. Experimental results reveal that the proposed system has achieved an accuracy of 98.59 % and it performs well than other existing systems and be a helpful tool for the security purpose.

1. INTRODUCTION Biometrics is to do the work of identification of humans by their own characteristics. Biometrics is used in computer science as a form of identification and access control. It is also used to identify the persons who are in groups under surveillance. Biometric identifiers are classified into physiological and behavioural characteristics. Finger vein recognition is a method of biometric authentication, which is based on images of human finger vein patterns under the skin's surface. Finger vein ID is a biometric authentication system that matches the vascular pattern in an individual's finger with the previously obtained data. Hitachi developed ©2017 RS Publication, [email protected]

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and patented a finger vein ID system in the year 2005. The technology is recently used for the development of various applications, including credit card authentication, security of automobiles, employee’s time details and attendance checking system, computer and network authentications, and ATM. Moreover, finger vein systems have some powerful advantages. First, there is no property of latency. The vein patterns in fingers stay where they belong, and where no one can see them in the fingers has a wide range of privacy consideration. Second, vascular sensors which are used for sensing are used to withstand any kind of work or pressure and are usable for our systems. 2. LITERATURE SURVEY 2.1 Relevant studies Puneet Gupta, Saurabh Srivastava, Phalguni Gupta have proposed the accurate personal authentication system for hand dorsal images acquired under infrared light. Each image in the database is segmented into palm and fingers which are subsequently used to extract palm dorsal veins and the infrared hand geometry features respectively. A new quality estimation algorithm is proposed to estimate the quality of palm, which assigns low values to the hair or skin texture’s pixels. The palm region is enhanced using filtering and for vein extraction, the information is provided by the image which is enhanced and the vein quality is consolidated using a different approach. By this, the variable vein widths are effectively enhanced and the global vein matching approach greatly minimizes the problems of occlusion, rotation and noises. For performance evaluation, a database of 1500 hand images have been acquired from 300 different hands and is created. Experimental results show that the proposed system shows superior performance than the existing systems. Khellat-Kihela, Abrishambafc, Monteirob, Benyettou have proposed an finger identification system using multimodal fusion of finger-knuckle-print, fingerprint and finger’s venous network by taking several techniques for multimodal fusion at different levels. A set of feature level and decision level is proposed for the fusion of three biological traits. The multimodal fusion system for enhancing the feature level fusion is introduced using optimization method. The optimization consists of the space reduction methods. The pre-processing step presented is based on the 2D Gabor filter. A bank of Gabor filters has been used in the feature extraction step. The feature space for the finger was reduced by the methods of PCA and KFA. A distance calculation method, SVM and KNN have been used to classify the selected features of the finger. Yusuke Matsuda1, Naoto Miura, Akio Nagasaki have proposed the mean ©2017 RS Publication, [email protected]

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curvature method. The mean curvature method describes the curvature of many intensity profiles of image, which is used for feature extraction step, because such image profiles will be robust against the irregular shading. The feature points are extracted from any positions in the profiles, where the vein shape is non-linear. Also, a finger-shape model and non-rigid method for registration purposes are proposed. Both the model and the registration method changes the deformation, which is caused by the finger-posture change. Experimental results show that the proposed method achieves more robust feature than that of the conventional methods. Furthermore, the experiments on finger-vein identification system show that the proposed method provides higher accuracy values. Also the processing speed becomes slower in the system, when large sets of feature points are taken into account. TongLiu, JianbinXie, WeiYan, Peiqinli have proposed a Direction-Variance-Boundary Constraint Search (DVBCS) method, which is used to restore the finger vein patterns which are broken. At the beginning, endpoints of broken finger-vein patterns are located. Then a constraint for searching the candidate set points are demonstrated. Then an optimal target point is selected from the candidate point sets. Eventually, the boundary constraint and variance constraint methods are introduced as the termination conditions. The error rate now becomes 0.59% to 0.29%. The variance constraint and boundary constraint processes are executed in order to terminate the restoration process. Experiment results show that the proposed method cannot only restore broken branches of finger-vein patterns, but also can improve the performance of finger-vein recognition significantly. Puneet Gupta and Phalguni Gupta have proposed a multi–algorithm fusion method, which involves four levels of fusion in the system which greatly includes multi-algorithm fusion, data fusion, feature fusion and score fusion. Multi-algorithm fusion is applied to extract the vein patterns from the vein images, by using various vein extraction algorithms. Followed by that, the fused features and the hand boundary shape features are matched to obtain the matching scores, which are fused at the score level. The proposed system has been tested on the database which is acquired from 4120 images of 1030 subjects. It is found to be achieving an accuracy of 100%. Experimental results reveal that it performs better performance than other existing systems. The proposed system can compensate geometrical deformations in a time efficient manner, but the local thresholding algorithm sometimes does not consider global smoothness of the images.

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3. ANALYSIS The databases used in the paper are FUSM database which consists of 425 images, ORL database of 20 images and VP database of 425 images. The input image is taken from the any one database. Images acquired from the real world are subjected to various types of noises. Then median filter is used to remove the noise. Thus the speckles are removed from the image using the median filter and the filtered image is obtained. A new quality estimation algorithm is proposed to estimate the quality of vein and the vein image is enhanced using multi scale matched filtering. For vein extraction, the information provided by the enhanced image and the vein quality is consolidated using SVM classifier. A Support Vector Machine (SVM) classifier is employed to classify the proposed features of vein. The proposed vein extraction can handle the issues of hair, skin texture and variable vein widths so as to extract the features of vein. Also Support Vector Machine (SVM) classifier is used that will analyse the data and recognizes the classification and regression of the image.

4. FLOW DIAGRAM

QUALITY PREPROCESSING

INPUT IMAGE

Noise

ESTIMATION

Gradient

Removal

Local Range

Image Enhancement using Multi scale Matched Filtering

Vein Extraction using SVM Classifier

Matching

Authenticated person

Unauthenticated person Database

Fig 1. Flow diagram Fig 1. Shows the flow diagram for vein pattern extraction. It explains the different modules that have been used. Each module is explained individually in the following ©2017 RS Publication, [email protected]

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4.1 PREPROCESSING The task of image pre-processing is to enhance the image and to reduce the noise, without destroying the important features in the image. Several filter operations which intensify or reduce certain image details enable an easier or faster evaluation in preprocessing. Pre-processing can also be grouped as radiometric corrections and geometric corrections. The image, ‘I’ is converted to gray-scale image. The image ‘I’ consists of regions that are not a part of the hand, i.e., background pixels which do not contain useful information and hence, such areas should be removed from the image. The speckles are removed from the image using the median filter and the filtered image is obtained.

4.2 QUALITY ESTIMATION METHODS The quality estimation method mainly involves the method of assigning high values to vein pixels and lower values to the remaining pixels especially to the pixels containing hair. Gradient based quality estimation is used to estimate the quality. It is observed that the hairs present in the acquired images have low width and there is a high intensity difference between the black colour hair pixel and the intensity of vein pixels. On the other hand, the local neighbourhood of hand pixels mostly have same intensity pixels and hence, local range of hand pixels is low. Motivated by this, the local range method is applied. Local range of an image is determined by searching the local neighbourhoods of each and every pixel. The local neighbourhoods of ‘p’ are defined as the pixels which has a block centered at ‘p’ and is of certain sizes. The local neighbourhoods which are having the maximum and the minimum intensity values are found and their resulting values are subtracted to obtain the local range value of corresponding ‘p’. It is certain that the local range of a point is low if its local neighbourhoods possess similar intensity values.

4.3 VEIN ENHANCEMENT The finger images or palm dorsal images may contain variable vein widths and hence a single filter cannot be used, so matched filtering at multiple scales are used, where several filters are designed for different shapes of vein and filter responses are used to enhance the vein widths. Matched filtering is a linear filter which has the process of detecting a known piece of signal that is embedded in noise. Multi-scale matched filtering is applied on quality estimated image for vein enhancement because it can enhance the variable width veins at multiple scales and the resultant enhanced image is obtained. Unfortunately, noise due to hair

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and skin texture is also enhanced and thus, spurious veins can be generated, if the image is used for vein extraction. In order to have clear enhanced image, the GVF Snake method is used followed by multi scale matched filtering.

4.4 VEIN PATTERN EXTRACTION The quality estimated Image is then applied into the SVM Classifier. Support Vector Machines (SVMs) are supervised learning models with associated learning algorithms, that searches data which uses the terms of classification and regression analysis. Having a set of training examples, which are marked as belonging to one or the other of two types, an SVM training algorithm hence forms a model that assigns new examples to one category or the other, making it as a non-probabilistic binary linear classifier. An SVM model is a representation of the examples as having different points in space, which are been mapped so that the examples of the separate categories are divided by a clear gap that is as wide as possible. In vein pattern extraction, by using SVM Classifier, the feature point extracted image is obtained. The classifier is then used, which is used to classify the finger vein image into background pixels and binary vein pattern.

4.5 VEIN MATCHING The binary vein pattern is obtained from the extracted image as the output. The vein pattern is now matched with the databases such as FUSM, ORL, and VP. The vein pattern is matched in order to identify as an authorized person or as an unauthorized person. For matching purpose, PCA Matching is used. Principal Component Analysis (PCA) is a statistical procedure that uses an orthogonal method which is used to convert a set of identifications of possibly correlated variables into a set of values of uncorrelated ones, which are known as principal components. The number of principal components will result in less amount or equal to that of the number of original variables. This transformation method is defined in such a way that the first principal component has the largest value and each succeeding component in turn has the highest variance values which is under the condition that it is orthogonal to the corresponding preceding components. The resulting vector values are an uncorrelated orthogonal set values.

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5 RESULTS

5.1 PREPROCESSING The input is the finger vein image. The finger vein image is pre-processed by adding rough on the scale of the wavelength. Speckle noise is generally serious, causing difficulties for image interpretation. It increases the mean grey level of a local area. The noise is removed by the Median filter which is a non-uniform low pass filter. Fig 2 shows the pre-processing stage which has the filtered image,

(a)

(b) Fig 2. Pre-processing Stage- (a) Input Image (b) Filtered Image ©2017 RS Publication, [email protected]

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5.2 QUALITY ESTIMATION METHODS Gradient is a useful way which is present to measure the directional component in an image. The local neighbourhoods which are having the maximum and the minimum intensity values are found and their resulting values are subtracted to obtain the local range value of corresponding ‘p’. Fig 3 shows the quality estimated image which is calculated using the gradient method and local range method.

Fig 3. The quality estimated image calculated using the gradient method and local range method 5.3 VEIN ENHANCEMENT The multi scale matched filtering which enhances the variable vein widths at multiple scales. Noise due to hair and skin texture is also enhanced in the vein image.

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Fig 4. The enhanced image by multi scale matched filtering Fig 4. Shows the enhanced image by multi scale matched filtering which enhances the variable vein widths at multiple scales.

5.4 VEIN PATTERN EXTRACTION In vein pattern extraction, by using SVM Classifier, the feature point extracted image is obtained. The classifier is then used, which is used to classify the finger vein image into background pixels and binary vein pattern. The feature point extracted image is shown in fig 5

Fig 5. Feature point extracted image

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After the feature point image is obtained, the SVM Classifier classifies the image into background pixel image and binary vein pattern. The binary vein pattern thus obtained is shown in fig 6

Fig 6. Binary vein pattern

5.5 VEIN MATCHING The binary vein pattern is obtained from the extracted image as the output. The vein pattern is now matched with the database such as FUSM, ORL, and VP. The vein pattern is matched in order to identify as an authorized person or an unauthorized person. For matching purpose, PCA Matching is used. The vein matched output using PCA Matching is shown in Fig 7

Fig 7. The vein matched output

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5.6 VEIN PATTERN EXTRACTION AND MATCHING USING GUI TOOLS After the vein pattern is extracted, it is matched and is implemented in Graphical Interface Tools (GUI) for interfacing. A graphical user interface (GUI), is a type of user interface that allows the people to interact with the help of electronic devices through graphical icons and visual icons such as secondary notation methods, instead of text based indicators, typed command labels or text navigation methods. The GUI tool implementation for authorized person and unauthorized person is shown in fig 8,

(a)

(a) Fig 8. GUI tool implementation – (a) authorized person (b) unauthorized person ©2017 RS Publication, [email protected]

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5.7 ACCURACY COMPARISION: Accuracy is a statistical measure in which the result obtained from the measurement, calculations continues to the correct value or a standard.

Accuracy comparision 99 98 97 96 95 94 93

Accuracy

FUSM

ORL

VP

98.59

96.62

95.12

Fig 9. Accuracy comparison From the above fig 9, it is inferred that the maximum value of accuracy is obtained in FUSM database as 98.59 % and hence it is found to be better than other databases. 5.8 SENSITIVITY COMPARISION Sensitivity is a statistical measure which measures the proportion of positives that are correctly identified and hence improves the performance of the binary classification.

Sensitivity comparision 99 98 97 96 95 94 93 92

Sensitivity

FUSM

ORL

VP

97.94

95.12

94.23

Fig 10. Sensitivity comparison ©2017 RS Publication, [email protected]

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From the above fig 10, it is inferred that the maximum value of sensitivity is obtained in FUSM database as 97.94 % and hence it is found to be better than the other databases. 5.9 SPECIFICITY COMPARISION Specificity is a statistical measure which measures the amount of negatives that are correctly identified in a given set.

Specificity comparision 95.4 95.2 95 94.8 94.6 94.4 94.2 94 93.8 93.6 93.4 93.2

Specificity

FUSM

ORL

VP

95.12

94.56

93.89

Fig 11. Specificity comparison

From the above fig 11, it is inferred that the maximum value of specificity is obtained in FUSM database as 95.12 % and hence it is found to be better than the other databases.

5.10 TPR COMPARISION True positive rate is the rate at which the proportion of positives are correctly identified in a given set.

TPR Comparision 95.5 95 94.5 94 93.5 93

True Positive rate

FUSM

ORL

VP

95.12

94.56

93.89

Fig 12. TPR comparison ©2017 RS Publication, [email protected]

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From the above fig 12, it is inferred that the maximum TPR is obtained in FUSM database as 95.12 % and hence it is found to be better than other databases.

5.11 FPR COMPARISION The false positive rate is calculated as the ratio between the number of negative events which are been wrongly classified as false positives and the total number of actual negative events.

FPR Comparision 25 20 15 10 5 0

False Positive Rate

FUSM

ORL

VP

15.45

18.12

21.52

Fig 13. FPR comparison From the above fig 13, it is inferred that the minimum value of FPR is obtained in FUSM database as 15.45 % and hence it is found to be better than other databases.

5.12 PERFORMANCE MEASURE OF PSNR VALUES AND MSE VALUES Peak signal-to-noise ratio (PSNR) is a term which calculates the ratio between the maximum possible power of a signal and the power of corrupting noise. Many signals have wide dynamic range and hence PSNR is expressed in terms of the logarithmic scale. The Mean Squared Error (MSE) or Mean Squared Deviation (MSD) usually measures the average of the squares of the errors or deviations. It shows the difference between the estimator and what is estimated in a system.

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From the databases of FUSM, ORL and VP, out of 870 images, 10 images are taken from each database and PSNR value is calculated. It is found that the maximum value of PSNR is obtained in FUSM database and the performance measure of PSNR of FUSM, ORL, VP databases is listed below in fig 14,

PSNR of all Databases 60 50 40 30 20 10 0 Img 1

Img 2

Img 3

FUSM Database

Img 4

Img 5

ORL Database

Img 6

Img 7

Img 8

VP Database-Palm

Img 9

Img 10

VP Database-Wrist

Fig 14. Performance measure of PSNR of FUSM, ORL, VP Databases The performance measure of MSE of FUSM, ORL, and VP Databases is listed below in fig 15,

MSE of all the Databases 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1

2 FUSM Database

3

4

5

ORL Database

6

7

VP Database-Palm

8

9

10

VP Database-Wrist

Fig 15. Performance measure of MSE of FUSM, ORL, VP Databases ©2017 RS Publication, [email protected]

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From the databases of FUSM, ORL and VP, out of 870 images, 10 images are taken from each database and MSE value is calculated. From the fig 15, it is found that the minimum value of MSE is obtained in FUSM database 6. CONCLUSION The system developed a new feature extraction approach, which is used for extracting the vein pattern in vein images. The vein is hidden inside the body and hence it is difficult to forge or steal and hence it provides a promising alternative for reliable secured service. Experiments show that the proposed metric has good consistency, where the features set is promising and 98.59% accuracy is achieved for FUSM database, 96.62 % for ORL database and 95.12 % for VP database. From the above results, it is found that the FUSM database exhibits higher accuracy than other databases. Further, the future work will be focussed on an embedded finger-vein application for authentication. It will be a more promising and helpful tool for the security purposes, which applies to any vulnerable and valuable assets.

7. REFERENCES

[1]

Jian-Da Wu, Chiung-Tsiung Liu, “Finger-vein pattern identification using SVM and nesural network technique”, Expert Systems with Applications, Elsevier - (2011)

[2]

P. Gupta , P. Gupta ,”An accurate finger vein based verification system”, Digital Signal Processing ,Elsevier -(2015) .

[3]

P. Gupta , P. Gupta , “Extraction of true palm and

dorsa veins for human

based-authentication” : IEEE transactions on Graphics and Image Processing, ACM, 2014.

[4]

P. Gupta , P. Gupta , “ Multi-modal fusion of palm and dorsa vein pattern for accurate personal

authentication”, Knowledge-Based Syst. 81 –Springer-

verlag (2015) .

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[5]

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Wonseok Song, Taejeong Kim, Hee Chan Kim, “A finger-vein verification system

using mean

curvature”,

Pattern

Recognition

Letters

1541–

1547,Elsevier 2015.

[6] S. Khellat-Kihela, R.Abrishambafc,J.L, Monteirob,“Multimodal fusion of the finger vein, fingerprint and the finger-knuckle-print using Kernel Fisher analysis”, Applied soft Computing (2016) ,Elsevier-2016

[7]

TongLiu, JianbinXie, WeiYan “Finger-vein pattern restoration with DirectionVariance- Boundary Constraint Search“,Engineering Applications of Artificial Intelligence 46(2015)131–139,Elsevier -2015.

[8]

Jinfeng Yang, Xu Zhang, “Feature-level fusion of fingerprint and finger-vein for personal identification”, Pattern Recognition (2012) 623–628 & Elsevier – 2012.

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Yusuke Matsuda , Naoto Miura, Akio Nagasaki, “Finger-vein authentication based on deformation-tolerant feature-point matching” ,Machine Vision and Applications (2016) 27:237–250,Springer -2016.

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Yu-Chun Cheng, Huan Chen & Bo-Chao Cheng,“Special point representations for reducing data space requirements of finger-vein recognition applications”, Multimodal Tools for Applications,Springer -2016.

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AUTHORS PROFILE P. Shiny Chandra Bai received her B.E degree in Electronics and Communication from Mepco Schlenk Engg College, Anna University, India, she is currently pursuing M.E degree in Embedded Systems from Anna University Regional Campus - Tirunelveli, India. She has published papers in International and National Journal, Conference, referred symposiums. She is a Reviewer for International Journal of Engineering and Technology. Her research interests include Embedded System, Image Processing, Digital Communication, Robotics, Adhoc Networks and Signal Processing, RFID, Biometric Recognition System. A.Jerwin Prabu received his B.E degree in Electronics and Communication from Karpagam University, India, he is a Roboticist, Technology Head of Bharati Robotic Systems Company, at Pune, India, as well as Research Scientist of Science, Engineering, and Technology, at India. He is a technical expert in Industrial, Medical Robotics and its applications with particular experience in Artificial Intelligence. He has published more than 50 papers in International and National Journal, Conference, referred symposiums. He is a Member of the Editorial boards of International Journal of Engg and Technology, Reviewer for Springer Journals, Council of Innovative Research, and Scientific & Academic Journals, International Innovation Team, International Association of Engineers, International Association of Research and Development Organization.

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