萨加:在没有约束的环境中进行稳定意识的步态分析
Dimple Sethi1, Deepak Kumar Sharma2, Koyel Datta Gupta3
1School of Computer Science and Engineering, Bennett University, Greater Noida, Uttar Pradesh, India.
Gait & posture
|July 2, 2024
概括
这项研究引入了一个端到端的网络来检测步行异常,整合细分,特征估计和分类. 这种新的方法实现了高精度,提高了定量步行分析的可访问性.
科学领域:
- 生物医学工程 生物医学工程
- 计算机科学 计算机科学
- 机器学习 机器学习
背景情况:
- 在临床环境中,行走异常的检测是复杂的.
- 现有的方法使用独立的,连续的过程 (细分,特征估计,学习,相似性评估).
- 这些独立的模块在具有挑战性的条件下限制了性能.
研究的目的:
- 开发一个统一的,端到端的网络来检测步行异常.
- 提高步态分析系统的效率和准确性.
- 为了简化传统的多步骤方法在现实世界中应用.
主要方法:
- 使用卷积神经网络和深度Q学习.
- 使用两个网络:一个用于坐标估计,另一个用于分类.
- 将这些网络整合到一个单一的,共同可训练的学习技术中.
主要成果:
- 平均准确率达到了95.3%.
- 获得了96.4%的灵敏度.
- 考虑到稳定性因素,达到94.1%的特异性.
结论:
- 拟议的系统提高了在医疗和康复环境中获得定量步态分析的机会.
- 有助于对与步态相关的疾病进行大规模研究.
- 证明了步态分析的有效性和前沿结果.
相关概念视频
01:26Constraints and Statical Determinacy
601
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...
601
01:21Rigid Body Equilibrium Problems - II
7.0K
A rigid body is in static equilibrium when the net force and the net torque acting on the system are equal to zero.
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
Consider two children sitting on a seesaw, which has negligible mass. The first child has a mass (m1) of 26 kg and sits at point A, which is 1.6 meters (r1) from the pivot point B; the second child has a mass (m2) of 32 kg and sits at point C. How far from the pivot point B should the second child sit (r2) to balance the seesaw?
7.0K
00:49Rigid Body Equilibrium Problems - I
4.4K
A rigid body is said to be in static equilibrium when the net force and the net torque acting on the system is equal to zero. To solve for rigid body equilibrium problems, do the following steps.
4.4K
01:13Stability of Equilibrium Configuration: Problem Solving
603
The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
Problem-solving in the context of the stability of equilibrium configuration...
Problem-solving in the context of the stability of equilibrium configuration...
603
01:23Stability of Equilibrium Configuration
443
Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
443