作者: Ciyun Lin , Hui Liu , Dayong Wu , Bowen Gong
DOI: 10.3390/S20113054
关键词:
摘要: A light detection and ranging (LiDAR) sensor can obtain richer more detailed traffic flow information than traditional detectors, which could be valuable data input for various novel intelligent transportation applications. However, the point cloud generated by LiDAR scanning not only includes road user points but also other surrounding object points. It is necessary to remove worthless from using a suitable background filtering algorithm accelerate micro-level extraction. This paper presents slice-based projection (SPF) method. First, 3-D projected 2-D polar coordinates reduce dimensions improve processing efficiency. Then, classified into four categories in slice unit: Valuable (VOPs), (WOPs), abnormal ground (AGPs), normal (NGPs). Based on classification results, objects (pedestrians vehicles) their easily identified an individual frame of cloud. We proposed artificial neuron network (ANN)-based model adaptability dealing with gradient LiDAR-employing inclination. The experimental results showed that this successfully extracted points, such as users curbstones. Compared random sample consensus (RANSAC) density-statistic-filtering (3-D-DSF) algorithm, demonstrated better performance terms run-time accuracy.