The LDA recognises lane markings and road edges and estimates the position of the car within the lane. Lane Detection provides a backbone for supporting many other Mobileye mono-camera based functions, such as Vehicle Detection, in which case it assists in correctly locating the vehicle in the lane ahead.
Provided that lane markings are visible and that their detection isn’t hindered by the presence of clutter, shadows, rain, snow or any other disturbance on the road, the LDA recognizes the majority of white, yellow and blue lane markings worldwide, and the Mobileye system is available for over 99% of cases (as tested by vehicle makers in series programs).
Various types of lane marking, such as solid, dashed, Bott’s dots, double and triple lane markings have been validated successfully and incorporated into production. Additionally the LDA recognises unmarked road edges such as the grass or gravel road edges. Additional information about the adjacent lane is provided in order to aid the warning strategy and fine-tune it to OEM requirements. Moreover, an approval mechanism for better separation of ambiguous lane markings, double lane markings, triple lane markings, etc, has been developed, and the system has been fine-tuned and adapted, to correctly react to the variability that exists in various countries. The approval mechanism can also make use of colour information (e.g. yellow lane markings) for better separation.
The LDA has been extensively tested in series production programs in Europe, North America, South Africa, the Middle East and Asia, and has been validated globally on multiple continents and in a wide catalogue of scenarios, including bright sunlight and inclement weather. In construction areas, where there are multiple overlaid markings, the system becomes unavailable. Lane markings of different colours (ie Korean blue markings) have been successfully developed and are run using the same input from a monochrome imager as all other functions.
Mobileye is currently working on a rear-facing LDA using the existing rear-facing cameras already in production for reversing applications. This enhances LDW capabilities in more challenging scenarios, such as when entering a tunnel or assisting drivers in situations when, for example, the sun blinds the front camera, or there are reflections on the road caused by tar seams- and overall system performance will be enhanced.
Lane Departure Warning
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