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

Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

568
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
568
Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

682
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
682
Rapidly Varying Flow01:24

Rapidly Varying Flow

564
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
564
Gradually Varying Flow01:29

Gradually Varying Flow

485
Gradually varying flow (GVF) in open channels describes situations where water depth changes slowly along the channel due to factors like non-uniform bed slope, channel shape variations, or obstructions. This flow type occurs when the depth adjusts gradually to balance gravitational forces, shear forces, and energy requirements, resulting in a low rate of depth change.Characteristics of Gradually Varying FlowGVF is commonly observed in natural streams, rivers, and canals, where flow depth...
485
Turbulent Flow: Problem Solving01:09

Turbulent Flow: Problem Solving

469
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
469
Steady Flow of a Fluid Stream01:27

Steady Flow of a Fluid Stream

808
Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
808

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

Two-stage bone grafting for nasal correction in late-presenting patients with unilateral cleft: A 3-year comparative study.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2026
Same author

Co-occurring polycyclic aromatic hydrocarbons and heavy metals drive bacterial community shifts regulated by soil water content in China's Beiluo River riparian soils.

Ecotoxicology (London, England)·2026
Same author

PuMYB40 and PuWRKY75 synergistically enhance phosphate uptake and organic phosphorus hydrolysis under phosphate deficiency in poplar.

Plant physiology·2026
Same author

Crosstalk of metabolic cell death pathways in colorectal cancer: implications for precision therapy.

Apoptosis : an international journal on programmed cell death·2026
Same author

Correction: The multifaceted functions of selective autophagy in cancer: molecular basis, consequences, and clinical prospects.

Molecular cancer·2026
Same author

Artificial intelligence optimizes immune rejection prediction and management in heart transplantation: a structured narrative review.

Frontiers in cardiovascular medicine·2026
Same journal

Anchor-based disentanglement framework for incremental multi-view clustering.

Neural networks : the official journal of the International Neural Network Society·2026
Same journal

Complex-valued amplitude-phase interference modeling for adversarially robust classification.

Neural networks : the official journal of the International Neural Network Society·2026
Same journal

TraNce: Type-aware hypergraph neural network with biological mediators for drug repositioning.

Neural networks : the official journal of the International Neural Network Society·2026
Same journal

Decentralized ADMM for factorization-based Low-rank matrix estimation.

Neural networks : the official journal of the International Neural Network Society·2026
Same journal

Memristive neuromorphic circuit design inspired by the neural mechanisms of conditioned fear.

Neural networks : the official journal of the International Neural Network Society·2026
Same journal

Q-learning based asynchronous Boolean control networks stabilization with data loss.

Neural networks : the official journal of the International Neural Network Society·2026
関連記事をすべて見る

関連する実験動画

Updated: Mar 2, 2026

Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.2K

自己教師あり学習によるマルチキュー不確実性モデリングを介した自己教師ありフローおよび深度推定

Rokia Abdein1, Wei Li2, Yidan Chen1

  • 1College of Computer Science and Technology, Harbin Engineering University, Harbin, 150001, China.

Neural networks : the official journal of the International Neural Network Society
|February 28, 2026
PubMed
まとめ
この要約は機械生成です。

この研究では、不確実性推定の学習信号としてタスクの不一致を利用することにより、困難な領域の精度を向上させる、モーションおよび3D構造推定のための自己教師ありフレームワークを紹介します。

キーワード:
深度推定オプティカルフロー剛体運動自己教師あり学習不確実性推定

さらに関連する動画

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA
09:22

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA

Published on: October 31, 2011

13.5K
Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
10:53

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

7.6K

関連する実験動画

Last Updated: Mar 2, 2026

Determining 3D Flow Fields via Multi-camera Light Field Imaging
14:25

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

17.2K
Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA
09:22

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA

Published on: October 31, 2011

13.5K
Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques
10:53

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

7.6K

科学分野:

  • コンピュータビジョン
  • 機械学習
  • ロボット工学

背景:

  • 動的なシーンからモーションおよび3D構造を推定することは、コンピュータビジョンにとって重要です。
  • 自己教師あり学習は、手動アノテーションの費用効果の高い代替手段を提供しますが、オクルージョンや非剛体運動には苦労します。
  • 既存の方法では、これらの課題を個別のヒューリスティックで処理することが多く、有効性が制限されています。

研究 の 目的:

  • 動的なシーンにおけるロバストなモーションおよび深度推定のための統一されたフレームワークを開発すること。
  • 自己教師あり学習のための監視信号としてタスクの不一致を活用すること。
  • オクルージョン、テクスチャの曖昧さ、および非剛体運動の処理を改善すること。

主な方法:

  • UGFD(不確実性ガイドフローおよび深度)フレームワークを提案しました。
  • タスク内(勾配の不一致)およびタスク間(フロー深度剛性違反)の不一致をモデル化することにより、密な不確実性マップを導き出しました。
  • ガイド付き学習と集中型最適化のために、コンテキストアウェア不確実性(CAU)モジュールと非剛性駆動(URD)損失を導入しました。

主要な成果:

  • KITTIベンチマークで最先端のパフォーマンスを達成しました。
  • SintelおよびFlyingThings3Dデータセットでのゼロショットテストを通じて、堅牢な汎化機能を示しました。
  • さまざまなエラーソースの処理を、一貫した不確実性フレームワークで正常に統合しました。

結論:

  • 提案された不確実性推定パラダイムは、自己教師ありモーションおよび深度推定の限界を効果的に解決します。
  • UGFDフレームワークは、信頼性を評価することを学習することにより、グラウンドトゥルースデータなしで堅牢な推定を可能にします。
  • このアプローチは、正確な3Dシーンの理解を必要とするコンピュータビジョンタスクにとって大きな進歩を提供します。