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相关概念视频

Hierarchy of Motor Control01:18

Hierarchy of Motor Control

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The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
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Velocity and position can be calculated from the known function of acceleration as a function of time. The total area under the acceleration-time graph and the velocity-time graph gives the change in velocity and position, respectively. In the case of an airplane, its acceleration is tracked using the inertial navigation system. The pilot provides the input of the airplane's initial position and velocity before takeoff. The inertial navigation system then uses the acceleration data to...
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HOZ++:用于对象导航的多功能层次对象到区域图.

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    本研究介绍了层次对象到区域 (HOZ++) 图表,以改进视觉对象导航. 通过模仿人类认知地图,HOZ++图表通过模仿人类认知地图,在未见的环境中增强了代理决策.

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    科学领域:

    • 机器人技术 机器人技术 机器人技术
    • 人工智能的人工智能
    • 认知科学 认知科学

    背景情况:

    • 当前的深度学习代理在未见的环境中与对象导航作斗争.
    • 人类的导航依赖于认知地图来回忆经验和预测未来事件.
    • 现有的方法缺乏适应性和在新环境中做出强有力的决策.

    研究的目的:

    • 开发一种灵感来自人类认知映射的代理导航系统.
    • 在未见的环境中改进对象导航性能.
    • 创建一个多功能图形结构,适应各种导航方法和环境.

    主要方法:

    • 提出了层次对象到区域 (HOZ++) 图,模拟对象,区域和场景之间的关系.
    • 实施了一个系统,HOZ++图形通过识别区域和计算最佳路径来指导代理.
    • 启用了HOZ++图的持续更新,以实时观察适应性.
    • 将HOZ++图形与现有的强化学习 (RL) 和模块化导航方法集成.

    主要成果:

    • HOZ++图有效地引导代理商识别当前和目标区域,计算最佳路径.
    • 持续的更新提高了代理人的适应能力,以适应新的,未见的环境.
    • 拟议的方法在四个不同的模拟器 (AI2-THOR,RoboTHOR,Gibson,Matterport 3D) 和现实环境中证明了有效性和效率.
    • 与端到端RL和模块化方法的成功集成.

    结论:

    • 通过利用认知地图原则,HOZ++图表显著提高了对象导航能力.
    • 与以前的方法相比,该方法提供了更好的适应性和决策能力.
    • HOZ++图表为复杂的视觉导航任务提供了多功能和有效的解决方案.