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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

394
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...
394
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

450
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...
450
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

345
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...
345
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

218
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...
218
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

343
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...
343
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

429
Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the...
429

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相关实验视频

Updated: Jun 13, 2025

A Protocol for Real-time 3D Single Particle Tracking
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A Protocol for Real-time 3D Single Particle Tracking

Published on: January 3, 2018

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模拟多个时空关系,以实现强大的视觉对象跟踪.

Shilei Wang, Zhenhua Wang, Qianqian Sun

    IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
    |September 9, 2024
    PubMed
    概括
    此摘要是机器生成的。

    MCTrack通过将多个线索 (如历史数据和搜索区域) 整合到单个变压器流中来增强视觉对象跟踪. 这种多重cue方法在复杂的场景中提高了性能,超过了现有的方法.

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    相关实验视频

    Last Updated: Jun 13, 2025

    A Protocol for Real-time 3D Single Particle Tracking
    10:16

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    Published on: January 3, 2018

    14.9K
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    科学领域:

    • 计算机视觉 计算机视觉
    • 人工智能的人工智能
    • 机器学习 机器学习

    背景情况:

    • 使用变压器架构的单流追踪器在并行特征提取和关系建模方面表现出色.
    • 然而,这些跟踪器在复杂的场景中扎,因为它们忽视了模板之外的关键跟踪线索.

    研究的目的:

    • 为改进视觉对象跟踪提出一种新的多线索单流跟踪器 (MCTrack).
    • 为了无地整合模板信息,历史轨迹,历史和搜索区域以实现同步的特征提取和关系建模.

    主要方法:

    • MCTrack采用两种编码器类型来将各种跟踪线索转换为变压器架构的令牌.
    • 一个具有值和局部多峰组件的新型自适应更新机制完善了时间和空间暗示蒸.

    主要成果:

    • 在主流基准数据集上,MCTrack表现出领先的表现.
    • 与先进的SeqTrack相比,在GOT-10k上的AO指标取得了2.0%的改善.

    结论:

    • 拟议的MCTrack有效地解决了复杂的视觉跟踪任务中的单流跟踪器的局限性.
    • 多个线索和自适应更新机制的集成显著提高了跟踪准确性和稳定性.