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Calculation of Nighttime Road Image under Automotive Headlamp Lights
Technical Paper
2001-01-0300
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
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 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. HID 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
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Authors
Citation
Song, H., Sakong, K., Lee, C., and Ha, Y., "Calculation of Nighttime Road Image under Automotive Headlamp Lights," SAE Technical Paper 2001-01-0300, 2001, https://doi.org/10.4271/2001-01-0300.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
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- Damasky J. “A new software tool for performance simulation of headlamp pattern,” SAE Technical Paper Series 1999-01-1215 141 144 1999
- Fairchild M. D. Color appearance model Addison Wesley Longman, Inc. Massachusetts 1997
- Miyake Y. Yokoyama Y. “Obtaining and reproduction of accurate color images based on human perception,” Proc., SPIE 3300 190 197 1998