IEEE Instrumentation & Measurement - September 2023 - 21

Development of Visual Sensors
and Augmented Reality Based
Smart Glasses for Enhancement
of Business Sustainability and
Wellbeing of the Aging Workforce
Christos Spandonidis, Fotis Giannopoulos, Jerónimo Agulló, Nikolaos S. Tachos,
Lars Frederiksen, Aarón Martín, and Ramón González Carvajal
A
n active healthy workforce is a key determinant to
sustainable economic and human development. As
part of this ensemble, the aging workforce offers
years of experience and wisdom to their workplaces, providing
critical mentorship to younger workers or newly assigned
employees. Among the most relevant chronic diseases hitting
the aged person, visual ability is reducing at a rate of about
3% every year, threatening productivity and limiting the tasks
they may be assigned. See Far smart glasses aim to develop
a human-machine system that aids visually-impaired people,
helping them to remain actively involved in professional
life, sustain and renew their work and personal life-related
skills, and support independent, active, healthy lifestyles. See
Far glasses can enhance the user's vision by projecting an enhanced
image of what the user sees within his/her field of
view, counteracting several visual impairments that the user
may experience and greatly improving his/her work performance.
Such enhancements include image contrast and/or
brightness modification, text and image magnification and
more. The system is comprised of a pair of low-profile Augmented
Reality (AR) lenses, a number of different sensors and
Artificial Intelligence (AI) algorithms, and a powerful processing
unit that drives the lenses, processes sensor data and runs
AI algorithms.
AR Smart Glasses State of the Art
Since the launch of Google Glass in 2012, the market for AR
glasses has experienced an enormous increase. Marketed towards
either aiding visually-impaired people to accomplish
everyday day and work-related tasks or enhancing entertainment-related
activities, many solutions that incorporate a pair
of smart glasses exist in today's market. NuEyes Pro is targeted
to people with low or no vision in their everyday tasks [1]. RETISSA
Display II provides image projection onto the retina,
helping with a number of eyesight-related conditions [2]. Acesight
provides products for aiding visually-impaired people
with a number of vision-related conditions such as tunnel vision,
low contrast sensitivity and blurry vision [3]. Nreal light
has targeted a wider audience, by focusing on enhancing the
September 2023
end user's productivity, entertainment and fitness activities
[4]. Technology companies like Epson have also developed
AR products to aid employees of various disciplines in accomplishing
their work tasks [5]. Table 1 summarizes the features
of the these AR smart glasses.
See Far Smart Glasses
See Far glasses feature a number of hardware and software
modules that enable functionalities that make the product
stand out among its peers. The main components that form
See Far smart glasses are presented in Table 2. What makes the
See Far solution unique are: support of waveguide AR lenses
that project data and images that blend seamlessly with the
person's field of view, compensating any visual impairment
and driven by the powerful Snapdragon 845 processing board;
their thickness of less than 2 mm, makes the See Far smart
glasses a light and stylish solution, when compared with the
competition; support of GTS cameras that enable both tracking
of what the user is looking at, as well as emotional arousal and
cognitive workload assessment. The GTS also provides data to
software modules like the real-time object recognition based
on the user's eyes focus; compatibility with any USB-C display
device with DisplayPort v1.4 and any USB-A 3.0 device
for Scene and GTS cameras; the cost per device is estimated to
be US $1100 (1000€) for large volume production.
See Far smart glasses system architecture, accompanied
by some typical use cases per peripheral devices, are shown
in Fig. 1.
Various software modules can run on See Far smart glasses,
given the processing power as well as the variety of sensors
to enhance the working experience and create an age-friendly
living and working environment, addressing the needs of employees
in various sectors and workplaces while taking into
account and effectively eliminating reduced capabilities due
to vision deficiencies. The applications include:
◗ Impairments detection and monitoring service
◗ Object and hazards recognition
◗ Identification of region of interest based on GTS
◗ Embedded navigation system
IEEE Instrumentation & Measurement Magazine
1094-6969/23/$25.00©2023IEEE
21

IEEE Instrumentation & Measurement - September 2023

Table of Contents for the Digital Edition of IEEE Instrumentation & Measurement - September 2023

Contents
IEEE Instrumentation & Measurement - September 2023 - Cover1
IEEE Instrumentation & Measurement - September 2023 - Cover2
IEEE Instrumentation & Measurement - September 2023 - Contents
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