Detection of obstacles' edges based on sobel-hough algorithm by parking assist system
Kang Lin-quan · Machinery Design and Manufacture · 2011
Parking Assist System can bring the great convenience of backing and parking the vehicle to drivers.a new method how to detect and get the edge of obstacles is introduced.The CCD sensor which is behind the boot of car gets the picture of obstacles which usually are poles and steps.After processing the picture by median filter,the color image translates into the black-and-white image,and the edge detection algorithm Sobel and adaptive global thresholding are applied to get the coarse edges.Then the Hough transforms algorithm is applied to locate the most important edges.At last,the most important edges will get wider and be colored.The original picture with the colored edges will be shown in the screen of the car.