A traffic sign recognition method for unmanned vehicles
A technology for traffic sign recognition and unmanned vehicles, applied in the field of image processing, can solve the problems of low achievements in efficient traffic sign recognition technology, and achieve the effect of high recognition efficiency
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[0067] The specific steps of using this method to detect traffic signs are as follows:
[0068] Step 1: Install the gray dot wide-angle camera in front of the vehicle. In this embodiment, the pixels of the image obtained by the vehicle-mounted camera are 2736×2192, the color mode is RGB, and the coordinate system adopted by the panoramic image is a spherical coordinate system. Select the upper part of the center of the image as the area to be recognized according to its installation location, such as figure 2 shown.
[0069] Step 2: Color segmentation, and then adopt filtering, expansion, erosion and other processing methods, and then gradually filter the appropriate contour according to the contour area and other conditions, and finally obtain the contour corresponding to the traffic sign, such as Figure 3 to Figure 4 shown. image 3 middle:
[0070] Top: the original image of the area to be recognized, bottom left: the red channel, bottom right: the blue channel.
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