Solving Challenges and Improving the Performance of Automotive Displays

Abstract

As the number, size, and role of in‐vehicle screens expand, more dynamic content rendering is needed to ensure that drivers accurately perceive display information, regardless of lighting conditions or individual vision issues, according to IRYStec, a Canadian‐based start‐up that specializes in perceptual display processing technology. Here, Tara Akhavan, the company’s founder and chief technology officer, and her team present a software solution that they say can improve user experience exponentially.

Perceptual Displays Today & Tomorrow – Evangelism, Productization, and Evaluation

“…In contrast to conventional image processing approaches that were fixed, it has also become very popular to adjust the pixel processing occurring in the chipset or on the display driver to adapt and adjust in real time to the dynamic variables such as image frame. The figure below shows a side-by-side demonstration of such adaptive image processing on two identical displays for a side-by-side comparison [2,3].…”

Perceptual Image Quality Assessment for Various Viewing Conditions and Display Systems

“…Real world environments, however, expose the viewer to a wide range of ambient illumination conditions, from nighttime darkness to direct sunlight and everything in between. The same digital content, which when displayed under regular office lighting will have good apparent image quality, in extremely bright or dark conditions, will be less visible to the viewer and its apparent image quality will be reduced [21]. As most existing IQA metrics do not model the effect of non-ideal ambient conditions, they lack the ability to predict the associated effect on image quality.…”

“…As the perceived illumination level decreases, the HVS shifts from photopic (daytime) to scotopic (nighttime) vision [22,23]. With this comes a decrease in contrast sensitivity and perception of color; in dark conditions, the human eye thus sees less detail and colors appear desaturated [21,24]. Meanwhile, at high ambient illumination levels, although the contrast sensitivity of the eye does not vary much, the eye is exposed to stronger reflection and glare from the environment.…”

“…Meanwhile, at high ambient illumination levels, although the contrast sensitivity of the eye does not vary much, the eye is exposed to stronger reflection and glare from the environment. The perception of visual content is then proportionately adversely affected [21,25].…”

“…One practical application of the LRT algorithm is to process images intended to be displayed under non-ideal viewing conditions to match the ideal condition appearance. Such processing techniques are capable of preventing apparent image quality degradation due to unfavorable viewing conditions [21].…”