Vinoth K, Sasikumar P
School of Electronics Engineering, Vellore Institute of Technology, Vellore, India.
Sci Rep. 2024 Dec 28;14(1):31130. doi: 10.1038/s41598-024-82356-0.
Autonomous vehicles, often known as self-driving cars, have emerged as a disruptive technology with the promise of safer, more efficient, and convenient transportation. The existing works provide achievable results but lack effective solutions, as accumulation on roads can obscure lane markings and traffic signs, making it difficult for the self-driving car to navigate safely. Heavy rain, snow, fog, or dust storms can severely limit the car's sensors' ability to detect obstacles, pedestrians, and other vehicles, which pose potential safety risks. So, we have presented a multi-sensor fusion and segmentation for multi-object tracking using DQN in self-driving cars. Our proposed scheme incorporates the handling of pipelines for camera and LiDAR data and the development of an autonomous solution for object detection by handling sensor images. An Improved Adaptive Extended Kalman Filter (IAEKF) was used for noise reduction. The Contrast enhancement was done using a Normalised Gamma Transformation based CLAHE (NGT-CLAHE), and the adaptive thresholding was implemented using an Improved Adaptive Weighted Mean Filter (IAWMF) which was used for preprocessing. The multi-segmentation based on orientation employs various segmentation techniques and degrees. The dense net-based multi-image fusion gives more efficiency and a high memory in terms of fast processing time. The Energy Valley Optimizer (EVO) approach is used to select grid map-based paths and lanes. This strategy solves complicated tasks in a simple manner, which leads to ease of flexibility, resilience, and scalability. In addition, the YOLO V7 model is used for detection and categorization. The proposed work is evaluated using metrics such as velocity, accuracy rate, success rate, success ratio, mean squared error, loss rate, and accumulated reward.
自动驾驶汽车,通常被称为无人驾驶汽车,已成为一项具有颠覆性的技术,有望实现更安全、高效和便捷的交通。现有研究取得了一定成果,但缺乏有效的解决方案,因为道路上的堆积物会遮挡车道标记和交通标志,使自动驾驶汽车难以安全导航。暴雨、大雪、大雾或沙尘暴会严重限制汽车传感器检测障碍物、行人及其他车辆的能力,从而带来潜在安全风险。因此,我们提出了一种在自动驾驶汽车中使用深度Q网络(DQN)进行多目标跟踪的多传感器融合与分割方法。我们提出的方案包括处理相机和激光雷达数据的管道,以及通过处理传感器图像开发用于目标检测的自主解决方案。使用改进的自适应扩展卡尔曼滤波器(IAEKF)进行降噪。使用基于归一化伽马变换的对比度受限自适应直方图均衡化(NGT-CLAHE)进行对比度增强,并使用改进的自适应加权均值滤波器(IAWMF)实现自适应阈值处理,该滤波器用于预处理。基于方向的多分割采用了各种分割技术和程度。基于密集网络的多图像融合在快速处理时间方面具有更高的效率和更高的内存。能量谷优化器(EVO)方法用于选择基于网格地图的路径和车道。这种策略以简单的方式解决复杂任务,从而实现了灵活性、弹性和可扩展性。此外,使用YOLO V7模型进行检测和分类。使用速度、准确率、成功率、成功比、均方误差、损失率和累积奖励等指标对所提出的工作进行评估。