IET Biometrics
Volume 5, Issue 1, March 2016
Volumes & issues:
Volume 5, Issue 1
March 2016
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- Author(s): Guodong Guo ; Harry Wechsle ; Shiguang Shan ; Norman Poh
- Source: IET Biometrics, Volume 5, Issue 1, p. 1 –2
- DOI: 10.1049/iet-bmt.2016.0011
- Type: Article
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- Author(s): Vikas Gottemukkula ; Sashi Saripalle ; Sriram P. Tankasala ; Reza Derakhshani
- Source: IET Biometrics, Volume 5, Issue 1, p. 3 –12
- DOI: 10.1049/iet-bmt.2014.0059
- Type: Article
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Securing personal information on handheld devices, especially smartphones, has gained a significant interest in recent years. Yet, most of the popular biometric modalities require additional hardware. To overcome this difficulty, the authors propose utilising the existing visible light cameras in mobile devices. Leveraging visible vascular patterns on whites of the eye, they develop a method for biometric authentication suitable for smartphones. They start their process by imaging and segmenting whites of the eyes, followed by image quality assessment. The authors’ stage 1 matcher is a three-step process that entails extracting interest points [Harris–Stephens, features from accelerated segment test, and speeded up robust features (SURF)], building features (SURF and fast retina keypoint) around those points, and match score generation using random sample consensus-based registration. Stage 2 matcher uses registered Gabor phase filtered images to generate orientation of local binary pattern features for its correlation-based match metric. A fusion of stage 1 and stage 2 match scores is calculated for the final decision. Using a dataset of 226 users, the authors’ results show equal error rates as low as 0.04% for long-term verification tests. The success of their framework is further validated on UBIRIS v1 database.
- Author(s): Farhana Javed Zareen and Suraiya Jabin
- Source: IET Biometrics, Volume 5, Issue 1, p. 13 –19
- DOI: 10.1049/iet-bmt.2015.0017
- Type: Article
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This is an undeniable fact that in the coming years a considerable percentage of organisations are drifting toward mobile devices for authentication. Banking sector as an additional offshoot has shifted to mobile devices with their applications for e-banking and mobile-banking, giving rise to an emergent requirement of a foolproof and authentic mobile-biometric system. This study presents an authentic mobile-biometric signature verification system and a comparative analysis of the performance of the proposed system for the two datasets; one using the standard device that is used for capturing biometric signatures and the other one is a mobile database taken from a smart phone for biometric signature authentication. The results presented demonstrate that the proposed system outperforms existing mobile-biometric signature verification systems based on dynamic time warping and hidden Markov model. Moreover, this study presents a comprehensive survey of mobile-biometric systems, different devices and hardware needed to support mobile biometrics along with open issues and challenges faced by the mobile-biometric systems. The experiments presented establish that the performance of mobile devices is low as compared with normal biometric signature capturing devices and the major reason the authors found is the absence of pen-tilt angle information in the mobile device datasets.
- Author(s): Norman Poh ; Ramon Blanco-Gonzalo ; Rita Wong ; Raul Sanchez-Reillo
- Source: IET Biometrics, Volume 5, Issue 1, p. 20 –27
- DOI: 10.1049/iet-bmt.2015.0016
- Type: Article
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Using your face to unlock a mobile device is not only an appealing security solution, but also a desirable or entertaining feature that is comparable with taking selfies. It is convenient, fast, and does not require much effort. Nevertheless, for users with visual impairments, taking selfies could potentially be a challenging task. In order to study the usability and ensure the inclusion of mobile-based identity authentication technology, the authors have collected the blind-subject face database (BSFDB). Ensuring that technology is accessible to disabled people is important because they account for about 15% of the world population. The BSFDB contains some 40 individuals with visual disabilities who took selfies with a mock-up mobile device. The database comes with four experimental protocols which are defined by a dichotomy of two controlled covariates, namely, whether or not a subject is guided by audio feedback and whether or not he/she has received explicit instructions to take the selfie. The findings suggest the importance of appropriate design of human computer interaction as well as alternative feedback design based on the audio cue. All the data is available online including more than 70, 000 detected face images of blind and partially blind subjects.
- Author(s): Belen Fernandez-Saavedra ; Raul Sanchez-Reillo ; Rodrigo Ros-Gomez ; Judith Liu-Jimenez
- Source: IET Biometrics, Volume 5, Issue 1, p. 28 –36
- DOI: 10.1049/iet-bmt.2015.0018
- Type: Article
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Biometrics has burst into mobile technology. Fingerprint scanners are being embedded in smartphones and tablets supplying these devices with the security and usability provided by biometric authentication mechanisms. However, performance results obtained by biometric systems cannot be extrapolated to mobile devices. The conditions change, especially at capture process, due to the reduced sensing area of the scanners used. The impact of small fingerprint scanners on the quality and biometric performance of the system is studied. A database using three different fingerprint scanners has been collected and reduced-size images (i.e. 12 × 12 mm2, 10 × 10 mm2 and 8 × 8 mm2) have been modelled by cropping the original ones. Performance testing has been conducted using one public and one commercial algorithm, and considering two application scenarios. One scenario in which enrolment and authentication are executed using the same small sensor included in the mobile device (i.e. cropped image against cropped image) and a second scenario in which enrolment is executed using an external larger sensor and authentication is done using the mobile device sensor (i.e. full image against cropped image). Results show the gradual worsening of quality and error rates as the size of the fingerprint scanner is reduced revealing a significant difference between the application scenarios analysed.
Guest Editorial
Special Issue on Mobile BiometricsMethod for using visible ocular vasculature for mobile biometrics
Authentic mobile-biometric signature verification system
Blind subjects faces database
Small fingerprint scanners used in mobile devices: the impact on biometric performance
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