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相关概念视频

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...

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相关实验视频

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Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
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基于区域的图像注册用于遥感图像.

Azubuike Okorie1, Sokratis Makrogiannis1

  • 1Delaware State University, 1200 N DuPont Hwy, Dover, DE 19901, USA.

Computer vision and image understanding : CVIU
|August 25, 2023
PubMed
概括

本研究引入了一种基于区域的自动方法,用于记录遥感图像. 这种新的方法使用联合强度-里埃描述符来准确匹配图像,优于传统的基于特征的技术.

科学领域:

  • 地质科学 地质科学
  • 计算机科学 计算机科学
  • 遥感 遥感 遥感 遥感

背景情况:

  • 精确记录遥感图像对于各种地理空间应用至关重要.
  • 传统的本地基于特征的方法可能容易受到特征估计器的错误的影响.

研究的目的:

  • 为远程传感图像开发基于区域的自动注册方法.
  • 通过匹配区域属性而不是本地特征来提高注册准确性.

主要方法:

  • 使用内核密度估计器,形态重建和流域转换的自动图像细分.
  • 计算区域里埃描述符和标准化的区域强度描述符.
  • 定义基于欧几里德距离的联合匹配成本,用于区域对应.

主要成果:

  • 拟议的联合强度-里埃描述器方法在合成和真实数据集上实现了高精度.
  • 卫星图像中的平均根平均平方误差 (RMSE) 为0.446 ± 0.359像素和1.152 ± 0.488像素.
  • 与哈里斯,FAST,SURF,BRISK和KAZE关键点描述符相比,证明了较低的注册错误.

结论:

  • 拟议的基于区域的注册方法为遥感图像提供了高精度.

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  • 联合强度-里埃描述器方法有效地解决了局部特征估计器的局限性.
  • 这种技术为远程传感图像注册提供了强大而准确的解决方案.