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Imperfections in Crystal Structure: Point, Line and Plane Defects01:25

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A perfect crystal, in theory, has a uniform structure with the same unit cell and lattice points throughout. However, any deviation from this periodic arrangement is known as an imperfection or defect. These defects can be categorized into three types: point, line, and plane defects.Point defects occur when there is a deviation from the ideal due to missing atoms, displaced atoms, or additional atoms. These imperfections might occur due to imperfect packing during crystallization or because of...
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SCRS:分段结构与可控制的现实合成,用于芯片痕检测.

Jiaqing Huang1, Jianjun He1, Weihua Gui1

  • 1School of Automation, Central South University, Changsha 410083, China.

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|November 27, 2025
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概括

这项研究引入了一种用于检测激光二极管芯片上的划痕的新方法. 该方法使用合成数据生成来提高痕检测准确度,提高激光质量并防止芯片燃烧.

关键词:
数据合成数据的合成.扩散模型的扩散模型.激光二极管芯片 激光二极管芯片划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分划分

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光电学是指光电子产品.
  • 计算机视觉 计算机视觉

背景情况:

  • 激光二极管芯片上的划痕会降低性能,并导致燃烧.
  • 低对比度图像使得划痕检测变得困难,并阻碍了数据集的创建.
  • 精确的划痕检测对于激光质量控制至关重要.

研究的目的:

  • 开发一种强大的方法来检测激光二极管芯片发射面的划痕.
  • 为了应对有限和低对比度训练数据的挑战,用于划痕检测.
  • 在工业应用中提高划分的准确性和可靠性.

主要方法:

  • 提出了使用可控现实合成 (SCRS) 方法的细分结构.
  • 利用面具导向的扩散模型来生成现实的合成划痕图像.
  • 开发了一个新的TransCNN网络,将视觉转换器和卷积解码结合起来进行细分.

主要成果:

  • 实现了74.4%的欧盟 (mIoU) 上的平均交叉点,用于深度划痕检测.
  • 实现了75.8%的在欧盟 (mIoU) 上的平均交叉点,以检测浅.
  • 证明了SCRS在合成多样化和现实的培训数据方面的有效性.

结论:

  • 该SCRS方法显著提高了激光二极管芯片上痕检测的准确性.
  • 合成数据生成是一种可行的解决方案,可以克服抓伤检测中的数据限制.
  • 拟议的TransCNN网络提供了准确的划分,显示了工业应用潜力.