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Information Technology
Home›Information Technology›Leveraging on technology, people and processes

Leveraging on technology, people and processes

By MDIS
5th August 2019
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A secured living environment is essential for all.  To achieve a secured living, various biometric systems are available, such as, Iris scanner, Finger print and Face recognition.  Among these, the  Face recognition system is recommended for its ease of use, accuracy and cost effectiveness.

Why Face Recognition Systems?

Facial recognition in biometric technology is considered as the first step ahead for innovation into artificial intelligence.  Face recognition cannot be compared with biometric finger prints. Accuracy of fingerprints is reduced when someone has dirt or grease on their fingers or the scanner. The scanner is unable to read the fingerprint in such a situation unless the finger or the scanner is cleaned.  The cost of fingerprint technology is considerably higher as it requires both unique hardware and software. On the other hand, Facial recognition does not require special hardware or software, and is a cost effective system.

How the Face Recognition System Works?
The first version of face recognition works with static images and not on live video feed. After learning how face recognition works on static images, the first version was enhanced to incorporate live video feed. This was achieved by capturing images frame by frame and comparing the images with existing faces in the system. Various algorithms were designed to implement Face recognition system.

Face Recognition Algorithms
Face recognition is achieved by either “eigenface”, “fisherface” or “Local binary patterns” algorithms.  To develop this algorithms, the industry requires skilled and trained professionals.

Eigenface Algorithm
The scheme is based on an information theory approach. It decomposes face images into a small set of characteristic feature images called “eigenfaces” which is the principal components of the initial set of face images. Recognition is performed by projecting a new image into the subspace spanned by eigenfaces (“face space”) and then classifying the face by comparing its position in face space with the position of known individuals.

This algorithm was implemented using tools Raspberry Pi Model 3b and Python Software.


Raspberry Pi consists of an integrated LAN port.  The LAN port benefits the user by providing simple steps to connect to internet without adding an Ethernet shield. It also has a Wi-Fi integrated in it so the user can easily connect to the internet. It’s similar to a mini computer which can perform multiple tasks such as print server and VPN for other personal computers.

Python
Python is a programming language and is easy to use. The strength of python is its high level data structures and object oriented features. Python interpreter makes use of implemented data types, functions and libraries from ‘c’ or ‘c++’ language making it an ideal language for face recognition scripting. Python is widely used in bigger organisations due to its multiple programming paradigms and simplicity.

To conclude face recognition system leverages technology, people and processes to provide a secured living environment.

This article is contributed by Ms Latha Manian, Lecturer from the MDIS School of Technology.

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Founded in 1956, the Management Development Institute of Singapore (MDIS) is Singapore’s oldest not-for-profit professional institute for lifelong learning. MDIS has two main subsidiaries: Management Development Institute of Singapore Pte Ltd which oversees its Singapore academic operations, and MDIS International Pte Ltd which focuses on MDIS’ globalisation strategy. MDIS offers internationally-accredited courses in Business and Management, Engineering, Fashion, Health and Nursing, Information Technology, Languages and Education, Life Sciences, Media and Communications, Psychology, Tourism and Hospitality Management, and Safety and Environmental Management. These programmes are offered in collaboration with renowned universities in the United Kingdom.

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1 comment

  1. Avatar
    Ronald Soh 16 July, 2021 at 23:15 Reply

    Faceswap is the leading free and Open Source multi-platform Deepfakes software. Powered by Tensorflow, Keras and Python
    Faceswap will run on Windows, macOS and Linux.

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