道路表面的语义细分用于自动驾驶的自动驾驶
Huaqi Zhao1, Su Wang1, Xiang Peng1
1The Heilongjiang Provincial Key Laboratory of Autonomous Intelligence and Information Processing, School of Information and Electronic Technology, Jiamusi University, Jiamusi, Heilongjiang, China.
PeerJ. Computer science
|December 9, 2024
概括
本研究引入了一种基于频率的语义细分与变压器 (FSSFormer),以改善复杂的自动驾驶场景中的道路表面细分,提高重叠目标和道路边界的准确性.
科学领域:
- 计算机视觉 计算机视觉
- 机器学习 机器学习
- 自主驾驶系统 自主驾驶系统
背景情况:
- 语义细分对于自动驾驶至关重要,但与复杂的道路环境作斗争.
- 现有的方法在准确划分路面时往往存在局限性,特别是重叠的物体和边界细节.
研究的目的:
- 提出一种新的基于频率的语义细分方法,使用变压器架构 (FSSFormer).
- 在具有挑战性的交通条件下提高道路表面细分的性能.
- 改进对重叠目标和边界信息丢失的处理.
主要方法:
- 开发了一个基于频率的语义细分与变压器 (FSSFormer) 模型.
- 引入了一个重量分担的因子化注意力机制来选择关键频率特征.
- 采用交叉注意力方法,将空间和频率特征结合起来,以精确边界细节.
- 使用并行通道的前送网络进行位置信息编码.
主要成果:
- 拟议的FSSFormer在复杂的道路场景中展示了改进的细分性能.
- 与Cityscapes数据集上的现有方法相比,在整个欧盟 (mIoU) 中平均交叉点增加了2%.
- 成功解决了与重叠目标和边界信息丢失相关的挑战.
结论:
- FSSFormer为自动驾驶的语义细分提供了显著的进步.
- 基于频率的方法有效地利用频率信息来增强道路表面细分.
- 该方法显示了现实世界自动驾驶应用程序的巨大潜力,这些应用程序需要高细分精度.
相关概念视频
01:17Design Example: Alignment of a Road Line Using GIS
41
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
41
01:29Sight Distance in a Vertical Curve
34
Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...
34
01:25Selected Data About Geographic Locations
26
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
26
01:14Motor and Sensory Areas of the Cortex
2.9K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
2.9K
01:30Types of Global Positioning System Surveys
49
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
49
01:21Manipulation and Analysis
19
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
19