SECURITY In her talk at DSS, Marasco will explain


that improving the privacy and protection of the subjects of biometric imaging will assist in improving public confidence in biometric technology in general. Tere are a number of different ways to go about this at different levels of the process, but the fundamental point is to remove the personal information from a fingerprint. She continued: ‘We work


By taking the


straight from the original image and remove all of the sensitive information. Te image looks like a typical fingerprint but it doesn’t have the personal information. Aſter feature extraction, you are encrypting a protected template with the metric being taken within the encrypted domain. By taking the metric within the encrypted domain, the original template – and therefore the original image – can be protected.’ Another method is to de-identify the image


as soon as it’s taken. Te process is to remove the information about the identity of the


EYE IN THE SKY


Aeraccess, a French start- up focusing on unmanned aerial vehicle (UAV) R&D, have developing an affordable unmanned surveillance system, making the most of military technology combined with Sony’s FCB-EV7500 camera. The technology can be used to get a bird’s eye view of a car accident on a highway, fire in a forest or in a building; support policemen during outdoor activities, crowd control, and search and rescue; or remote area patrol, or border security. Nick Waple, product marketing


specialist for Sony’s Image Sensing Solutions Europe division, commented: ‘Aeraccess is taking a PTZ camera and making it fly, which in itself is impressive. The fact that they are aiming at the oil and gas, and the fire and rescue sectors signifies that this is a company with ambition and capability. It also illustrates the flexibility and quality of Sony FCB camera modules. Aeraccess’s product needs to deliver great


image quality, reliably, in tough conditions. Sony HD FCB camera modules excel at exactly this.’ Waple added: ‘The UAV market


is booming in various segments: aerial mapping, 3D mapping, inspection (railways, buildings, infrastructures), agriculture and security. Each market segment requires very specific technology.’ In terms of the specifications of


the cameras used onboard UAVs, Waple said: ‘Weight is a key factor for UAV applications. The FCB EV series fits within the requirements while providing a large feature set, and of course FCB-MA series is even lighter weight (2.2g) which means Sony can offer varied solutions dependent on customer requirements.’ Waple said that, instead of having to be designed for this application, the standard FCB-EV series is used as it is a very flexible product with many different applications, from video security to medical imaging. The UAV market has remained strong for a while now, but


metric within the encrypted domain, the original template – and therefore the original image – can be protected


subject of an image. Marasco said that there is already work being done where the images of fingerprints are mixed; once an image is taken, it is blended with a similar fingerprint from a database and stored, meaning the original image isn’t stored. Characteristics such as


gender or age are predictable from biometric data. So called soſt biometrics are a concern for privacy, because even if all of the information about a subject has been removed, the age or gender can still be discovered and reduce the list of possible people it could be. ‘It’s still very important


information to hide – de-identification is done to remove soſt biometrics from fingerprints, in particular gender.’ Marasco highlighted that while certain


information should be removed in order to protect the subject, the remaining print still needs to be useable and to provide results. ‘We need to consider the resolution of the images. All of these algorithms are related to


a connected system, and I can say 500dpi as a typical resolution,’ she said. Other products offer different resolutions, so in order to cover most systems Marasco and her team ensure the algorithms work up to 500dpi. Te higher end systems offer up to 1,000dpi but Marasco said these are very expensive. Te group have done some research into whether the size of the image has any impact on their findings. As technology improves, privacy will


improve. Marasco added that it also increases the acceptance because people can trust the machines to work accurately. Now though, according to Marasco, there is more funding for privacy and it’s now one of the key areas of development in the US. Tere is another issue with biometrics


compared to conventional security. Marasco pointed out that a biometric is a permanent piece of information and it can’t be changed, unlike a password. Once recorded, she said, ‘somebody will have, forever, my identity. But if an encrypted version of the biometric is created, this can be adjusted or the user could create multiple different fingerprint signatures. And this will be the research of the future of biometrics.’ O


UAVs are becoming more widely used for security as they become more affordable


systems are becoming much more widely used as they become more affordable. Waple said: ‘The FCB series of cameras are constantly being developed to incorporate latest Sony imaging technology; FCB modules are used in a wide variety of applications, and the aim is to provide imaging solutions to as many market segments as possible. This of course includes


the UAV market, and as the market sees growth we aim to develop more relationships with UAV manufacturers requiring high-quality imaging. FCB-MA13x cameras have been developed to propose a solution when high resolution (13 megapixels), low weight (2.2g) and low power consumption (700mW) is required.’


24 Imaging and Machine Vision Europe • April/May 2015


@imveurope www.imveurope.com


antb / Shutterstock.com


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