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相关概念视频

Topographic Surveying and Contours01:29

Topographic Surveying and Contours

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...
Plotting of Topographic Maps01:29

Plotting of Topographic Maps

Topographic maps represent the Earth's surface features using contour lines, which connect points of equal elevation to create a two-dimensional representation of three-dimensional terrain. Creating a topographic map requires a systematic approach.Begin by plotting a scaled grid and marking intersections corresponding to the survey's elevation data points. Assign elevation values at these intersections to build the base map. Next, determine contour levels using a consistent contour interval,...
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

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 served as...
Levels of Use of a GIS01:29

Levels of Use of a GIS

Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
Coordinates and Map Projections01:29

Coordinates and Map Projections

Coordinates and map projections are essential tools in accurately representing the Earth's surface for various applications, ranging from navigation to spatial analysis. The latitude and longitude coordinate system is a universally recognized framework for defining locations. Latitude specifies the distance of a point north or south of the equator, measured in degrees from 0° at the equator to 90° at the poles. Longitude indicates a location's position east or west of the prime meridian,...
Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

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...

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A Pipeline for 3D Multimodality Image Integration and Computer-assisted Planning in Epilepsy Surgery
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增强3T视网图地图,使用二元形态注册.

Negar Jalili-Mallak1, Yanshuai Tu1, Zhong-Lin Lu2,3,4

  • 1School of Computing, Informatics, and Decision Systems Engineering, Arizona State University, Tempe, AZ, USA.

Proceedings. IEEE International Symposium on Biomedical Imaging
|October 18, 2024
PubMed
概括

视网膜地图的不同形态注册 (DRRM) 通过确保精确的对齐而没有拓错误来提高视觉皮层绘图的准确性. 这种方法提高了视网膜图的解释性,有利于临床应用.

关键词:
不同形态注册的不同形态注册纽约大学视网膜基层数据集视网位映射绘制 视网位映射绘制

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科学领域:

  • 神经科学是一个神经科学.
  • 医疗成像医学成像
  • 计算解剖学的计算解剖学

背景情况:

  • 网膜拓映射将视觉刺激与视觉皮层中的神经活动联系起来.
  • 对视网膜图的准确对齐对于理解视觉处理至关重要.
  • 现有的方法可能面临着拓准确性和可解释性方面的挑战.

研究的目的:

  • 为增强视网膜图谱绘制引入视网膜图谱地图的不同形态注册 (DRRM).
  • 为了确保网膜图的准确对齐,同时保持拓完整性.
  • 提高视网膜图的解释性,特别是低质量的视网膜图.

主要方法:

  • 对3T NYU视网膜学数据集 (分析PRF和mrVista数据) 应用不同形态注册.
  • 使用贝尔特拉米系数和拓条件量化不同形态条件.
  • 与现有的视网膜类图谱绘制技术相比,对DRRM的评估.

主要成果:

  • DRRM确保了视网膜地图的准确对齐,没有拓违规.
  • 该方法显著提高了视网膜图谱图的准确性.
  • 在3T和7T视网膜样本数据集上,DRRM显示出了对现有方法的优越性.

结论:

  • 不同形态注册提供了一种强大的方法来提高视网膜图的准确性和可解释性.
  • DRRM为分析视觉皮层组织提供了可靠的工具.
  • 该技术显示了在神经成像中推进临床应用的潜力.