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Machine vision applications manuscript no. (will be inserted by the editor) automatic fog detection and estimation of visibility distance through use of an onboard camera.
| Content Provider | CiteSeerX |
|---|---|
| Author | Al, Nicolas Hautière Et Aubert, Didier Hautière, Nicolas Lavenant, Jean |
| Abstract | The date of receipt and acceptance will be inserted by the editor Abstract In this article, we will present a technique for measuring visibility distances under foggy weather conditions using a camera mounted onboard a moving vehicle. Our research has focused in particular on the problem of detecting daytime fog and estimating visibility distances; thanks to these efforts, an original method has been developed, tested and patented. The approach consists of dynamically implementing Koschmieder’s Law. Our method enables comput-ing the meteorological visibility distance, a measure defined by the International Commission on Illumi-nation (CIE) as the distance beyond which a black object of an appropriate dimension is perceived with a contrast of less than 5%. Our proposed solution is an original one, featuring the advantage of utilizing a single camera and ne-cessitating the presence of just the road and sky in the scene. As opposed to other methods that require the explicit extraction of the road, this method offers fewer constraints by virtue of being applicable with no more than the extraction of a homogeneous surface containing a portion of the road and sky within the image. This image preprocessing also serves to identify the level of compatibility of the processed image with the set of Koschmieder’s model hypotheses. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Machine Vision Application Model Hypothesis Visibility Distance Automatic Fog Detection Editor Abstract Daytime Fog Koschmieder Law Appropriate Dimension Foggy Weather Condition Explicit Extraction Onboard Camera Processed Image International Commission Homogeneous Surface Meteorological Visibility Distance Single Camera Original Method Black Object |
| Content Type | Text |
