填补空白:使用合成低空空中图像来增加运营设计领域覆盖范围
Joachim Rüter1, Theresa Maienschein1, Sebastian Schirmer1
1German Aerospace Center (DLR), Institute of Flight Systems, 38108 Braunschweig, Germany.
Sensors (Basel, Switzerland)
|February 24, 2024
概括
合成数据可以通过扩展其操作设计领域 (ODD) 来增强无人机系统 (UAS) 的机器学习 (ML) 模型. 当真实世界的数据不足以实现安全的自动飞行时,增强特别有效.
科学领域:
- 航空航天工程 航空航天工程
- 计算机科学 计算机科学
- 人工智能的人工智能
背景情况:
- 无人机系统 (UAS) 的安全和自主飞行依赖于强大的环境感知.
- 机器学习 (ML) 提供了先进的视觉感知,但由于数据依赖性质而面临认证障碍.
- 欧盟航空安全局 (EASA) 提供有关机器学习挑战的指导,例如数据管理和学习保证.
研究的目的:
- 调查合成数据的实用性,以补充基于机器学习的视觉对象检测的真实世界数据集.
- 评估合成数据是否可以增加机器学习系统的操作设计领域 (ODD) 覆盖范围.
- 评估合成数据生成技术,以改善航空中的ML模型性能.
主要方法:
- 使用EASA推的方法生成合成数据:增强,拼接和模拟环境.
- 增强了现实世界的数据集与合成数据来训练更快的R-CNN物体检测模型.
- 专注于在地面上检测人类,以评估着陆地点的安全性.
主要成果:
- 合成数据生成技术在增加ODD覆盖范围的适用性方面有所不同.
- 增强证明特别有前途的增强数据集与有限的现实世界的数据.
- 该研究提供了关于在航空领域生成和利用ML的合成数据的见解.
结论:
- 合成数据可以有效地增强现实世界的数据集,以改善ML感知系统的ODD覆盖范围.
- 这项研究通过解决数据要求,有助于在航空领域采用ML.
- 这些发现支持为UAS应用开发可认证的基于ML的系统.
相关概念视频
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
33
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...
33
01:25Methods of Obtaining Topography
66
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
66
01:26Profile Leveling and Cross Sections
228
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
228
01:17Common Leveling Mistakes and Errors
72
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
72
01:21Manipulation and Analysis
25
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...
25
01:29Topographic Surveying and Contours
95
Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...
95