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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

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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.
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Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...
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In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
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The center of gravity of a body is an imaginary point where the body's total weight is assumed to be concentrated, and the body is perfectly balanced. The center of the mass of a body is a point at which the whole of the mass of the body appears to be concentrated. If the acceleration due to gravity, g, has the same value at all points on a body, its center of gravity is identical to its center of mass. The center of gravity of homogeneous bodies such as a sphere, cube, or rectangular plate...
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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...
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轻量化动态分配算法用于对象检测.

Ping Han1, Xujun Zhuang1, Huahong Zuo2

  • 1School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China.

Sensors (Basel, Switzerland)
|July 29, 2023
PubMed
概括
此摘要是机器生成的。

本研究介绍了Lightweight Anchor Dynamic Assignment (LADA) 算法,以改善智能安全系统中的对象检测. 拉达增强了对各种物体形状的定位,提高了检测准确度.

关键词:
座的分配座的分配视角比率的比例是什么意识到损失,意识到损失.失去的时间.对象检测对象检测是指对象的检测.积极和消极的样本.自适应自适应的自适应

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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
  • 物联网 (IoT) 的物联网 (IoT) 的物联网.

背景情况:

  • 对象检测对于基于物联网的智能安全应用程序至关重要.
  • 当前的对象检测模型在分配过程中与各种对象尺寸比作斗争.
  • 这种限制阻碍了适应性和对各种物体形状的准确检测.

研究的目的:

  • 为增强对象检测提出轻量动态分配 (LADA) 算法.
  • 提高对象检测模型的适应性,以适应具有不同比例的地面真相框.
  • 为了解决积极样本选择的挑战,并改善异常物体的样本分配.

主要方法:

  • 在没有改变检测模型结构的情况下,LADA根据地面真相盒面积比率动态分配.
  • 它计算了联合损失,并使用动态损失值来有效地进行正负样本划分.
  • 该方法侧重于选择最佳的阳性样本,并改善了对不同形状的物体的分配.

主要成果:

  • 与基线FCOS,ATSS和PAA算法相比,LADA在MS COCO数据集上表现出卓越的性能.
  • 该算法实现了1.66% (AP),0.76% (AP) 和0.24% (AP) 的改进.
  • 这些结果是使用相同的模型结构获得的,突出显示了LADA的效率.

结论:

  • 拉达算法有效地解决了传统分配方法的局限性.
  • 它提供了更合理的样本分配,特别是对于具有异常形状和不同面积比的物体.
  • 在物联网智能安全应用中,LADA显著提高了对象检测准确度.