Details
| Original language | English |
|---|---|
| Article number | 234 |
| Journal | IS and T International Symposium on Electronic Imaging Science and Technology |
| Volume | 32 |
| Publication status | Published - Jan 2020 |
| Event | 2020 Human Vision and Electronic Imaging Conference, HVEI 2020 - Burlingame, United States Duration: 26 Jan 2020 → 30 Jan 2020 |
Abstract
LED flicker artefacts, caused by unsynchronized irradiation from a pulse-width modulated LED light source captured by a digital camera sensor with discrete exposure times, place new requirements for both visual and machine vision systems. While latter need to capture relevant information from the light source only in a limited number of frames (e.g. a flickering traffic light), human vision is sensitive to illumination modulation in viewing applications, e.g. digital mirror replacement systems. In order to quantify flicker in viewing applications with KPIs related to human vision, we present a novel approach and results of a psychophysics study on the effect of LED flicker artefacts. Diverse real-world driving sequences have been captured with both mirror replacement cameras and a front viewing camera and potential flicker light sources have been masked manually. Synthetic flicker with adjustable parameters is then overlaid on these areas and the flickering sequences are presented to test persons in a driving environment. Feedback from the testers on flicker perception in different viewing areas, sizes and frequencies are collected and evaluated.
ASJC Scopus subject areas
- Computer Science(all)
- Computer Graphics and Computer-Aided Design
- Computer Science(all)
- Computer Science Applications
- Computer Science(all)
- Human-Computer Interaction
- Computer Science(all)
- Software
- Engineering(all)
- Electrical and Electronic Engineering
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: IS and T International Symposium on Electronic Imaging Science and Technology, Vol. 32, 234, 01.2020.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Psychophysics Study on LED Flicker Artefacts for Automotive Digital Mirror Replacement Systems
AU - Behmann, Nicolai
AU - Blume, Holger
PY - 2020/1
Y1 - 2020/1
N2 - LED flicker artefacts, caused by unsynchronized irradiation from a pulse-width modulated LED light source captured by a digital camera sensor with discrete exposure times, place new requirements for both visual and machine vision systems. While latter need to capture relevant information from the light source only in a limited number of frames (e.g. a flickering traffic light), human vision is sensitive to illumination modulation in viewing applications, e.g. digital mirror replacement systems. In order to quantify flicker in viewing applications with KPIs related to human vision, we present a novel approach and results of a psychophysics study on the effect of LED flicker artefacts. Diverse real-world driving sequences have been captured with both mirror replacement cameras and a front viewing camera and potential flicker light sources have been masked manually. Synthetic flicker with adjustable parameters is then overlaid on these areas and the flickering sequences are presented to test persons in a driving environment. Feedback from the testers on flicker perception in different viewing areas, sizes and frequencies are collected and evaluated.
AB - LED flicker artefacts, caused by unsynchronized irradiation from a pulse-width modulated LED light source captured by a digital camera sensor with discrete exposure times, place new requirements for both visual and machine vision systems. While latter need to capture relevant information from the light source only in a limited number of frames (e.g. a flickering traffic light), human vision is sensitive to illumination modulation in viewing applications, e.g. digital mirror replacement systems. In order to quantify flicker in viewing applications with KPIs related to human vision, we present a novel approach and results of a psychophysics study on the effect of LED flicker artefacts. Diverse real-world driving sequences have been captured with both mirror replacement cameras and a front viewing camera and potential flicker light sources have been masked manually. Synthetic flicker with adjustable parameters is then overlaid on these areas and the flickering sequences are presented to test persons in a driving environment. Feedback from the testers on flicker perception in different viewing areas, sizes and frequencies are collected and evaluated.
UR - http://www.scopus.com/inward/record.url?scp=85094885980&partnerID=8YFLogxK
U2 - 10.2352/issn.2470-1173.2020.11.hvei-234
DO - 10.2352/issn.2470-1173.2020.11.hvei-234
M3 - Conference article
AN - SCOPUS:85094885980
VL - 32
JO - IS and T International Symposium on Electronic Imaging Science and Technology
JF - IS and T International Symposium on Electronic Imaging Science and Technology
M1 - 234
T2 - 2020 Human Vision and Electronic Imaging Conference, HVEI 2020
Y2 - 26 January 2020 through 30 January 2020
ER -