Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Transmission-based Precautions II: Airborne and Protective Environment01:25

Transmission-based Precautions II: Airborne and Protective Environment

1.9K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.9K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

1.1K
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
1.1K
Movement Joints in Buildings01:27

Movement Joints in Buildings

343
Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress.
The simplest type of movement joints, working joints, are...
343
Electric Potential and Potential Difference01:16

Electric Potential and Potential Difference

5.7K
Suppose a positive test charge moves away from a positive static charge, then the Coulomb force does positive work, and its electric potential energy decreases. The potential energy per unit charge is defined as the electric potential. The electric potential is independent of the test charge.
When a test charge moves from the initial to the final position, the electric potential difference between those positions is defined as the ratio of the change in the potential energy to the charge on the...
5.7K
Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

8.3K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
8.3K
Dimensional Analysis03:40

Dimensional Analysis

62.2K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
62.2K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Scale-Constrained Synthetic Construction for Small-Sample Satellite Power Tower Damage Assessment Under Cross-Scale Mismatch.

Sensors (Basel, Switzerland)·2026
Same author

A Cross-Modal Attention-Driven Multi-Sensor Fusion Method for Semantic Segmentation of Point Clouds.

Sensors (Basel, Switzerland)·2025
Same author

Power Line Extraction and Tree Risk Detection Based on Airborne LiDAR.

Sensors (Basel, Switzerland)·2023
Same author

ABE-induced PDGFD start codon silencing unveils new insights into the genetic architecture of sheep fat tails.

Journal of genetics and genomics = Yi chuan xue bao·2023

関連する実験動画

Updated: Jan 29, 2026

Analyzing and Building Nucleic Acid Structures with 3DNA
16:24

Analyzing and Building Nucleic Acid Structures with 3DNA

Published on: April 26, 2013

21.2K

中国農村部における空中LiDARを用いた多次元特徴量差分を考慮した建物抽出手法

Siyuan Xi1,2, Jianghong Zhao1,2

  • 1School of Geomatics and Urban Spatial Information, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.

Sensors (Basel, Switzerland)
|January 28, 2026
PubMed
まとめ

本研究は、中国農村部における空中点群からの建物分類のための新規手法を提案する。このアプローチは、密集した植生から建物を効果的に区別し、高い精度を達成する。

キーワード:
空中レーザー測量建物分類特徴量差分農村地域

さらに関連する動画

A Net Mold-based Method of Scaffold-free Three-Dimensional Cardiac Tissue Creation
06:57

A Net Mold-based Method of Scaffold-free Three-Dimensional Cardiac Tissue Creation

Published on: August 5, 2018

9.4K
In Vitro Method to Study Sex-Based Differences in Conjunctival Goblet Cells
06:28

In Vitro Method to Study Sex-Based Differences in Conjunctival Goblet Cells

Published on: July 28, 2023

836

関連する実験動画

Last Updated: Jan 29, 2026

Analyzing and Building Nucleic Acid Structures with 3DNA
16:24

Analyzing and Building Nucleic Acid Structures with 3DNA

Published on: April 26, 2013

21.2K
A Net Mold-based Method of Scaffold-free Three-Dimensional Cardiac Tissue Creation
06:57

A Net Mold-based Method of Scaffold-free Three-Dimensional Cardiac Tissue Creation

Published on: August 5, 2018

9.4K
In Vitro Method to Study Sex-Based Differences in Conjunctival Goblet Cells
06:28

In Vitro Method to Study Sex-Based Differences in Conjunctival Goblet Cells

Published on: July 28, 2023

836

科学分野:

  • 地理空間科学
  • リモートセンシング
  • コンピュータビジョン

背景:

  • 空中点群からの建物データの抽出は、特に密集した類似高さの植生が存在する農村部において困難である。
  • 既存の手法は、複雑な農村環境においてしばしば苦戦するため、特殊なアプローチが必要とされる。

研究 の 目的:

  • 典型的な中国の農村環境における空中点群のための効果的な建物分類手順を開発・検証すること。
  • 複雑な農村環境における建物抽出に関する研究の不足に対処すること。

主な方法:

  • 斜面解析に基づく動的な多層グリッドセグメンテーションにより、地形タイプを特定した。
  • 様々な地形に合わせて調整された、地盤点抽出のための微分フィルタリングパラメータ。
  • 分水嶺セグメンテーションと幾何学的特徴解析により、関心のある建物領域を選択した。
  • 建物と他のオブジェクトとの形態学的差異を用いた洗練された分類。

主要な成果:

  • テストデータセットにおいて、精度、再現率、F1スコアがそれぞれ93.37%、97.05%、95.17%を超え、高い分類性能を達成した。
  • 平均精度、再現率、F1スコアはそれぞれ94.02%、97.20%、95.58%を示した。
  • 複雑な農村環境における建物の分類に成功し、本手法の適応性を証明した。

結論:

  • 提案手法は、困難な農村地域からの空中点群における建物情報を効果的に抽出する。
  • 本アプローチは、多様な建物データ抽出タスクに対して、強力な適応性と実用性を示す。
  • 本研究は、複雑な地理空間シナリオにおける建物分類のための堅牢なソリューションを提供する。