ADAS & Autonomous Vehicles Special Report - December 2024 - 4

Advancing HMI development of
ADAS and active safety systems
Biosensors record detailed
reactions in real time,
helping HMI developers to
discern critical factors that
differentiate effective from
ineffective designs.
Emotion analytics and advanced eye-tracking
iMotions specializes in integrating emotion analytics into the HMI
design process. The approach aims to understand the emotional
and cognitive states of drivers in real time, using advanced sensor
technologies to capture data on eye movement, facial expressions
and physiological responses. This data-driven approach helps
designers recognize how drivers interact with various HMI elements,
identifying areas of cognitive overload, distraction or stress.
By utilizing such technology, vehicle designers can make informed
decisions about the layout, complexity and functionality of HMI
systems. For instance, insights into gaze patterns can inform the
optimal placement of critical information on dashboards, ensuring
that drivers can access the information they need without diverting
attention from the road. Similarly, monitoring physiological
responses during interactions with infotainment systems can
help in designing interfaces that minimize cognitive strain.
Integrating iMotions' advanced emotion analytics and
The Smart Eye Pro eyetracking
system can be
beneficial in the development
of adaptive HMI systems that
can dynamically adjust based
on the driver's focus.
biometric sensing within simulators provides insights into
drivers' cognitive loads, emotional states and physiological
responses. iMotions Software employs various biometric
measurements, including eye movements, facial expressions,
heart rate variability and EEG (electroencephalogram), to
study how drivers respond to different HMI elements during
simulations. This real-time data enriches understanding of driver
behavior, helping designers pinpoint which aspects of HMI
design enhance intuitive use and which could cause confusion.
The collaboration with Dutch simulator manufacturer
Cruden enhances this process, enabling swift evaluations and
adjustments. This method is actively used at the University
of Michigan Dearborn's Driving Simulator Lab, for example,
to align interfaces more closely with human capabilities.
Advanced eye-tracking technology provided by the multi-camera
Smart Eye Pro system allows HMI designers and researchers to
accurately monitor where and for how long a driver looks at different
4 DECEMBER 2024
areas of the vehicle interior. It also reveals how a
driver interacts with the cabin in real time via 3D
wireframe modeling without any distracting influence
from wearables. This technology is beneficial in
the development of adaptive HMI systems that can
dynamically adjust based on the driver's focus.
By combining the strengths of both emotion
analytics and eye-tracking technology, and
leveraging advanced simulator systems from Cruden,
designers can gain a better understanding of the
driver's physical and emotional state. The potential
synergy between these technologies holds great
promise for the future of HMI design in vehicles.
Nam Nguyen, technical partnership manager and senior
neuroscience product specialist for iMotions
(https://imotions.com/), contributed this article to
Truck & Off-Highway Engineering.
ADAS & AUTONOMOUS VEHICLES SPECIAL REPORT
BOTH IMAGES: IMOTIONS
https://imotions.com/
ADAS & Autonomous Vehicles Special Report - December 2024

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