Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Constraints and Statical Determinacy01:26

Constraints and Statical Determinacy

683
In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
683
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

448
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
448
Kinematic Equations: Problem Solving01:15

Kinematic Equations: Problem Solving

13.6K
When analyzing one-dimensional motion with constant acceleration, the problem-solving strategy involves identifying the known quantities and choosing the appropriate kinematic equations to solve for the unknowns. Either one or two kinematic equations are needed to solve for the unknowns, depending on the known and unknown quantities. Generally, the number of equations required is the same as the number of unknown quantities in the given example. Two-body pursuit problems always require two...
13.6K
Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

853
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
853
Statically Indeterminate Problem Solving01:16

Statically Indeterminate Problem Solving

492
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
492
Kinematic Equations - III01:18

Kinematic Equations - III

8.3K
The first two kinematic equations have time as a variable, but the third kinematic equation is independent of time. This equation expresses final velocity as a function of the acceleration and distance over which it acts. The fourth kinematic equation does not have an acceleration term and provides the final position of the object at time t in terms of the initial and final velocities. This equation is useful when the value of the constant acceleration is unknown.
Using the kinematic equations,...
8.3K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Impact of short-term temperature variability on emergency hospital admissions for schizophrenia stratified by season of birth.

International journal of biometeorology·2016
Same author

Design, Synthesis, and Evaluation of Thiophene[3,2-d]pyrimidine Derivatives as HIV-1 Non-nucleoside Reverse Transcriptase Inhibitors with Significantly Improved Drug Resistance Profiles.

Journal of medicinal chemistry·2016
Same author

Rationale and design of a randomized cluster trial to improve guideline-adherence of secondary preventive drugs prescription after coronary artery bypass grafting in China: Measurement and Improvement Studies of Surgical Coronary Revascularization: Secondary Prevention (MISSION-1) Study.

American heart journal·2016
Same author

Exenatide treatment increases serum irisin levels in patients with obesity and newly diagnosed type 2 diabetes.

Journal of diabetes and its complications·2016
Same author

AMPK-dependent regulation of GLP1 expression in L-like cells.

Journal of molecular endocrinology·2016
Same author

Multiprotein-bridging factor 1 regulates vegetative growth, osmotic stress, and virulence in Magnaporthe oryzae.

Current genetics·2016
Same journal

MT-MRI for detection of renal interstitial fibrosis in renovascular disease.

Scientific reports·2026
Same journal

Detection of underground objects from GPR data using a lightweight YOLO-based approach.

Scientific reports·2026
Same journal

Early systemic inflammatory-metabolic trajectory phenotypes are associated with survival outcomes in metastatic renal cell carcinoma treated with nivolumab.

Scientific reports·2026
Same journal

Water balance components in a dry-seeded rice-wheat system: Untangling the effects of tillage and mulching practices.

Scientific reports·2026
Same journal

Topological approaches to quantum tensor train compression via ZX-calculus and SVD.

Scientific reports·2026
Same journal

determinants of flood impacts and adaptive capacity among market vendors in Walukuba-Masese, Jinja city, Uganda.

Scientific reports·2026
查看所有相关文章

相关实验视频

Updated: Sep 9, 2025

Movement Retraining using Real-time Feedback of Performance
08:16

Movement Retraining using Real-time Feedback of Performance

Published on: January 17, 2013

13.5K

对动态场景的几何约束和语义优化SLAM算法

Yanli Liu1, Yuting Wang1, Heng Zhang2

  • 1School of Electronic Information, Shanghai DianJi University, Shanghai, 201306, China.

Scientific reports
|August 29, 2025
PubMed
概括
此摘要是机器生成的。

本研究提出了一种新的动态特征检测和过算法,以改善动态环境中的视觉SLAM (同时定位和映射). 与传统方法相比, 增强的系统显著提高了性能和稳定性.

关键词:
动态特征过几何限制语义信息视觉上的SLAM

更多相关视频

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
07:43

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

Published on: July 2, 2021

3.1K
Photorealistic Learned Landscapes for Augmented Reality
06:54

Photorealistic Learned Landscapes for Augmented Reality

Published on: June 27, 2025

155

相关实验视频

Last Updated: Sep 9, 2025

Movement Retraining using Real-time Feedback of Performance
08:16

Movement Retraining using Real-time Feedback of Performance

Published on: January 17, 2013

13.5K
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
07:43

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

Published on: July 2, 2021

3.1K
Photorealistic Learned Landscapes for Augmented Reality
06:54

Photorealistic Learned Landscapes for Augmented Reality

Published on: June 27, 2025

155

科学领域:

  • 机器人技术
  • 计算机视觉
  • 人工智能

背景情况:

  • 传统的视觉SLAM (同时定位和映射) 系统在动态环境中扎,导致错误和冗余.
  • 现有的方法往往无法准确地追踪移动物体的场景.

研究的目的:

  • 为强大的视觉SLAM开发动态特征检测和过算法.
  • 提高SLAM系统在复杂,动态环境中的适应性和准确性.

主要方法:

  • 使用四树节点的特征点选择和优化策略优先考虑高响应特征.
  • 用语义信息和几何约束来过动态特征.
  • 使用扩展方法和高可靠度权重来确定无匹敌的特征.

主要成果:

  • 在高度动态的环境中, 改进的算法显示了90%以上的性能提升.
  • 与ORB-SLAM2相比,在低动态设置中,绝对轨迹误差提高了多达96.84%.
  • 在动态环境中表现出卓越的适应性和强度.

结论:

  • 拟议的动态特征检测和过算法显著提高了视觉SLAM性能.
  • 该算法为涉及移动物体的现实应用提供了强大的解决方案.
  • 这项工作在具有挑战性的非静态场景中提升了SLAM系统的功能.