| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lane mark detection device that can discriminatingly detect a white lane mark and a yellow lane mark irrespective of light sources such as chromatic streetlights and headlights. <P>SOLUTION: An imaging device 1 picks up an image including a road area around a vehicle. A road area color measurement part 11 measures color components of the road area. For the determination of the color components of the road area, mean values of RGB signals of the road area are calculated, the calculated mean values of RGB signals are averaged to produce a lightness value of the road area, and the mean values of RGB signals of the road area are subtracted from the lightness value of the road area. According to the color components of the road area measured by the road area color measurement part 11, an image correction part 12 corrects the color of the image signals. With the color-corrected image signals, a yellow line binary image and a white line binary image are extracted, and yellow lane marks and white lane marks are extracted. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
