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相关概念视频

Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

353
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
353
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

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Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
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Acceleration Vectors01:30

Acceleration Vectors

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In everyday conversation, accelerating means speeding up. Acceleration is a vector in the same direction as the change in velocity, Δv, therefore the greater the acceleration, the greater the change in velocity over a given time. Since velocity is a vector, it can change in magnitude, direction, or both. Thus acceleration is a change in speed or direction, or both. For example, if a runner traveling at 10 km/h due east slows to a stop, reverses direction, and continues their run at 10 km/h...
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Relative Motion Analysis using Rotating Axes01:25

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Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
460
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
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Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

359
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
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相关实验视频

Updated: Jun 29, 2025

Tracking Rats in Operant Conditioning Chambers Using a Versatile Homemade Video Camera and DeepLabCut
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增强嵌入式对象跟踪:用于实时可预测性的硬件加速方法.

Mingyang Zhang1, Kristof Van Beeck1, Toon Goedemé1

  • 1PSI-EAVISE Research Group, Department of Electrical Engineering, KU Leuven, 2860 Sint-Katelijne-Waver, Belgium.

Journal of imaging
|March 27, 2024
PubMed
概括
此摘要是机器生成的。

这项研究增强了使用现场可编程网关数组 (FPGA) 的嵌入式系统的实时对象跟踪. 硬件加速显著减少执行时间和延迟变化,以实现可预测的性能.

关键词:
在FPGA中,FPGA是指FPGA.深度学习是一种深度学习.嵌入式系统嵌入式系统硬件加速加速器 硬件加速器高层次的合成.对象跟踪是指对象的跟踪.实时系统可预测性西安网络的西安网络.

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科学领域:

  • 计算机视觉 计算机视觉
  • 嵌入式系统工程 嵌入式系统工程
  • 硬件加速器 硬件加速器

背景情况:

  • 西安物体跟踪的进步还没有充分解决嵌入式设备上的硬实时可预测性.
  • 对于许多嵌入式应用程序来说,最小和可预测的执行延迟非常重要.
  • 基于深度学习的视频对象跟踪系统在实时性能方面面临挑战.

研究的目的:

  • 在嵌入式系统上基于深度学习的视频对象跟踪中分析和改进实时可预测性.
  • 在追踪系统中识别和解决时间可预测性瓶.
  • 为了评估硬件加速对实时对象跟踪的有效性.

主要方法:

  • 系统组件间实时可预测性的详细分析.
  • 实施专门的硬件加速器,以使用高水平合成 (HLS) 进行深度智能交叉相关和填充.
  • 在KV260嵌入式板上进行部署和测试.

主要成果:

  • 现场可编程门阵列 (FPGA) 实现表现出优越的硬实时行为.
  • 硬件加速导致平均执行时间的6.6倍加快.
  • 与基线相比,延迟变化减少了11倍,显著提高了可预测性.
  • 观察到提高了功率效率.

结论:

  • 硬件加速对于在嵌入式系统上实现时间可预测的对象跟踪至关重要.
  • 专门用于关键操作的硬件加速器有效地解决了性能瓶.
  • 开发的方法为实时嵌入式视觉中的硬件-软件联合设计设定了新的标准.