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Advanced methods for safe visualization on automotive displays

Axmann, Benjamin; Langner, Frank; Blankenbach, Karlheinz; Vogelmann, Matthaeus; Gaisberg, Adrian von; Strobel, Lukas; Bauer, Jan

Abstract:
Camera Monitor Systems (CMSs), for example, for backup cameras or mirror replacements, become increasingly important and already cover safety aspects such as guaranteed latency and no frame freeze. Today's approaches deal only with supervision of the digital interface, LCD backlight, and power supply. This paper introduces methods for advanced safety monitoring of panel electronics and optical display output that aim to enable future CMS based automotive use cases. Our methods are based on correlation of physical measurements with predicted values derived from a corresponding display model. This model was made via calibration measurements and many test patterns. Correlation of the monitoring results with predicted values corresponds to the probability that the RGB data are shown as intended. This implies that an overlying system, an Automotive Safety Integrity Level (ASIL) Prepared Video Safety System (APVSS), ensures that only safety verified RGB data are provided to the panel electronics. In case of failures, our methods enable a safe system state, for example, by deactivating the panel. An additional challenge is to allow graceful degradations, a safe but slightly degraded image may provide a better customer experience compared with no information. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000119566
Veröffentlicht am 22.06.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2020
Sprache Englisch
Identifikator ISSN: 1071-0922, 1938-3657
KITopen-ID: 1000119566
Erschienen in Journal of the Society for Information Display
Verlag Wiley
Band 28
Heft 6
Seiten 483-498
Vorab online veröffentlicht am 29.04.2020
Schlagwörter automotive, Camera Monitor System, LCD, monitoring, safety, video
Nachgewiesen in Scopus
Web of Science
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