Road data bending degree detection method based on multistage search radius

• Main Authors: YUAN SHENGGU, SUN XI, SHENG GUANGXIAO, LI LI, LUO LUN, WANG FANG
• Format: Patent
• Language: Chinese; English
• Published: 22.05.2020
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses a road data bending degree detection method based on a multistage search radius. The method comprises the steps of: 1) assigning a plane coordinate system, and reading node position information of road data; 2) determining a multistage search radius set according to conditions like functions and grades of roads; 3) performing bending degree detection on the road data respectively according to the multistage search radius, and identifying a part with a relatively large bending degree in the road data; and 4) carrying out comprehensive evaluation in combination with a local analysis result of each road, and screening out the road with a relatively large bending degree. According to the invention, the bending degree of road alignment can be detected quickly, accuratelyand efficiently, the part with a large bending degree in the road is recognized, the bending degree of the road is quantitatively described, the method can be used for linear detection on road data,the workload of manual ver