平行SLAM:通过并发处理增强映射和本地化
Francisco J Romero-Ramirez1, Miguel Cazorla2, Manuel J Marín-Jiménez3,4
1Departamento de Teoría de la Señal y Comunicaciones y Sistemas Telemáticos y Computación, Campus de Fuenlabrada, Universidad Rey Juan Carlos, 28942 Fuenlabrada, Spain.
Sensors (Basel, Switzerland)
|January 25, 2025
概括
本研究介绍了并行映射 (pSLAM) 以加快同时定位和映射 (SLAM) 地图的创建. pSLAM显著加快地图生成速度,以便在不太强大的设备上实时导航.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 计算机视觉 计算机视觉
- 人工智能的人工智能
背景情况:
- 同时定位和映射 (SLAM) 系统需要大量的计算资源,限制了低端硬件上的实时应用程序.
- 目前用于SLAM的离线地图创建是连续的,耗时的,即使在强大的计算机上也是如此.
研究的目的:
- 开发一种并行映射方法 (pSLAM),以显著减少线下SLAM地图生成所需的时间.
- 为了能够更快地部署SLAM,在资源有限的设备上实现实时导航.
主要方法:
- 拟议的pslam方法将视频序列划分为多个子序列,用于独立处理.
- 从子序列生成的单个子地图被合并以创建一个统一的全球地图.
- 在各种场景中进行实验验证,并与最先进的SLAM方法进行比较 (UcoSLAM,OpenVSLAM,ORB-SLAM3).
主要成果:
- pSLAM实现了比顺序方法快6倍的处理速度.
- 该方法的稳定性与传统的顺序SLAM相提并论.
- 在所有评估的场景中,pSLAM的表现都超过了UcoSLAM,OpenVSLAM和ORB-SLAM3.
结论:
- 平行处理显著加速了SLAM的离线地图创建.
- pSLAM提供了一种可行的解决方案,用于在低端系统上使用预生成的地图进行高效的实时导航.
- 与现有的最先进的SLAM技术相比,提出的方法显示出更高的性能和速度.
相关概念视频
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
20
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
20
Field Application of Global Positioning System
26
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
26
Confocal Fluorescence Microscopy
13.0K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
13.0K
Types of Global Positioning System Surveys
48
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...
48
Introduction to Global Positioning System
46
The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
46


