Vehicle front-scene watching from a sequence of road images

Takuma Nakamori; Mamoru Iwasa; Naoto Ishikawa; Masato Nakajima

doi:10.1117/12.452137

21 November 2002 Vehicle front scene watching from the sequence of road images

Takuma Nakamori, Mamoru Iwasa, Naoto Ishikawa, Masato Nakajima

Proceedings Volume 4790, Applications of Digital Image Processing XXV; (2002) https://doi.org/10.1117/12.452137
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Our aim is to prevent rear-end collision of the vehicle, and we propose a new method for a front-vehicle observation system using sequence of road images. In this research, we have developed an in-vehicle system that can be applied to a software-based rear-end collision with low computing power. First, we calculate projective transformation (a vehicle’s front image is changed into the images seen from right above) of the vehicle’s front image acquired by a single camera placed on the dashboard of our vehicle. Next, the difference of two projective transformation images is calculated. Finally, we calculate the degree of crashing risks depending on the distance to the front vehicle and the speed of our vehicle, and a warning is given to the driver. This system mounted on a vehicle has been tested on expressways. As a result, the effectiveness of our method has been verified.

Citation Download Citation

Takuma Nakamori, Mamoru Iwasa, Naoto Ishikawa, and Masato Nakajima "Vehicle front scene watching from the sequence of road images", Proc. SPIE 4790, Applications of Digital Image Processing XXV, (21 November 2002); https://doi.org/10.1117/12.452137

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KEYWORDS

Cameras

Roads

Distance measurement

Image processing

Imaging systems

Detection and tracking algorithms

Stereoscopic cameras

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