27 December 1995 Assessment of driver vision enhancement technologies
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Driver vision enhancement systems provide augmented information to improve the driver's perceptual ability when visibility is reduced. Vision enhancement is a technologically- challenging mission. We surveyed two classes of technologies: imaging systems (visible and infrared) and radars (millimeter-wave and laser radars). Night (IR) vision and radar-based systems promise meaningful vision enhancement functionality to the driver. Available field test data give thermal imagers operating in the range of 8 to 12 micrometers an edge. This spectral regime has a long (miles) clear night range, adequate object discrimination and handles inclement weather conditions better than other shorter wavelength imagers. Uncooled thermal imagers, because of their potentially low-cost, are emerging as a front runner technology. All weather penetration of a radar based system is attractive for certain driving scenarios. They are not particularly adept in high resolution imaging. This combination makes them more of interest as automated warning devices. Icons replace the actual objects imaged to indicate the hazard ahead. True all-weather high-resolution vision enhancement systems are beyond near- term capabilities. Overall, vision enhancement systems under development today will have good utility with the challenge that they become `affordable'.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Louis J. Denes, Louis J. Denes, Richard Grace, Richard Grace, David A. Purta, David A. Purta, Alberto M. Guzman, Alberto M. Guzman, } "Assessment of driver vision enhancement technologies", Proc. SPIE 2592, Collision Avoidance and Automated Traffic Management Sensors, (27 December 1995); doi: 10.1117/12.228917; https://doi.org/10.1117/12.228917


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