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    科学领域:

    • 计算机视觉 计算机视觉
    • 光学工程是指光学工程.
    • 地表表面技术的技术.

    背景情况:

    • 结构化的光投影对于高精度的3D传感至关重要.
    • 分散光学元件 (DOE) 为DLP/LCD投影机提供了紧的,低功耗的替代品.
    • 现有的DOE方法产生固定的模式,限制了3D测量系统的适应性.

    研究的目的:

    • 提出一个基于DOE的单个投影仪,能够调整点阵密度.
    • 为了克服在衍射结构光投影中固定图案生成的局限性.
    • 为了实现可适应的3D传感,具有可调节的分辨率和率.

    主要方法:

    • 作为核心投影组件,采用单个衍射光学元件 (DOE).
    • 可调节的点阵密度是通过调整激光源和DOE之间的距离来实现的.
    • 在3D测量过程中不需要更换固定光学元件.

    主要成果:

    • 展示了一个可调节密度的利点阵结构光投影系统.
    • 通过模拟和实验结果验证了拟议的方法.
    • 证实了调整激光-DOE距离以控制密度的有效性.

    结论:

    • 拟议的单个DOE投影仪为3D传感提供了灵活和可适应的解决方案.
    • 调整激光源-DOE距离提供了一个简单但有效的调整点密度的机制.
    • 这种方法提高了基于衍射的结构光投影的实用性,用于各种应用.