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A method for generating Simulated nighttime road images under automotive headlamp lights

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3 Author(s)
Cheol-Hee Lee ; Andong Nat. Univ., Gyeongbuk, South Korea ; Kuk Sagong ; Yeong-Ho Ha

This study proposes a new calculation method for generating real nighttime lamp-lit images. In order to improve the color appearance in the prediction of a nighttime lamp-lighted road scene, the lamp-lit image is synthesized based on spectral distribution using the estimated local spectral distribution of the headlamps and the surface reflectance of every object. The principal component analysis method is introduced to estimate the surface color of an object and the local spectral distribution of the headlamps is calculated based on the illuminance data and spectral distribution of the illuminating headlamps. High-intensity discharge and halogen lamps are utilized to create beam patterns and captured road scenes are used as background images to simulate actual headlamp-lit images on a monitor. As a result, the reproduced images presented a color appearance that was very close to a real nighttime road image illuminated by single and multiple headlamps.

Published in:

IEEE Transactions on Vehicular Technology  (Volume:53 ,  Issue: 3 )