Key Points Estimation and Point Instance Segmentation Approach for Lane Detection
This addresses lane detection for autonomous driving systems, offering an incremental improvement with adaptive model sizes and handling variable traffic line counts.
The paper tackles lane detection for autonomous driving by proposing Point Instance Network (PINet), which uses key points estimation and instance segmentation to adapt to varying numbers of traffic lines and computing power, achieving competitive accuracy and false positive rates on TuSimple and Culane datasets.
Perception techniques for autonomous driving should be adaptive to various environments. In the case of traffic line detection, an essential perception module, many condition should be considered, such as number of traffic lines and computing power of the target system. To address these problems, in this paper, we propose a traffic line detection method called Point Instance Network (PINet); the method is based on the key points estimation and instance segmentation approach. The PINet includes several stacked hourglass networks that are trained simultaneously. Therefore the size of the trained models can be chosen according to the computing power of the target environment. We cast a clustering problem of the predicted key points as an instance segmentation problem; the PINet can be trained regardless of the number of the traffic lines. The PINet achieves competitive accuracy and false positive on the TuSimple and Culane datasets, popular public datasets for lane detection. Our code is available at https://github.com/koyeongmin/PINet_new