Full Waveform Analysis for Long-Range 3D Imaging Laser Radar
Full Waveform Analysis for Long-Range 3D Imaging Laser Radar
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DOI：
10.1155/2010/896708
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发表时间：
2010-01-01
影响因子：
1.9
通讯作者：
Buller, Gerald S.
中科院分区：
文献类型：
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作者：
Wallace, Andrew M.;Ye, Jing;Buller, Gerald S.
基于激光雷达 (Ladar) 的新一代 3D 成像系统在国防和安全应用中具有显着优势。特别是，可以直接从场景中检索 3D 形状信息，并通过在传感器中或通过后处理从视场中提取狭窄的深度范围，从而将目标与背景或前景杂波分开。我们讨论并演示了全波形激光雷达生成多层 3D 图像的适用性，其中每个像素产生描述场景结构的复杂时间响应。这种由多重分布式反射引起的复杂性出现在许多相关场景中，例如通过半透明材料（例如窗户）和分布式反射介质（例如树叶）查看部分遮挡的目标。我们在我们自己的实验室开发的扫描飞行时间系统获取的 3D 图像数据上展示了我们的方法，该系统使用时间相关的单光子计数技术。
The new generation of 3D imaging systems based on laser radar (ladar) offers significant advantages in defense and security applications. In particular, it is possible to retrieve 3D shape information directly from the scene and separate a target from background or foreground clutter by extracting a narrow depth range from the field of view by range gating, either in the sensor or by postprocessing. We discuss and demonstrate the applicability of full-waveform ladar to produce multilayer 3D imagery, in which each pixel produces a complex temporal response that describes the scene structure. Such complexity caused by multiple and distributed reflection arises in many relevant scenarios, for example in viewing partially occluded targets, through semitransparent materials (e.g., windows) and through distributed reflective media such as foliage. We demonstrate our methodology on 3D image data acquired by a scanning time-of-flight system, developed in our own laboratories, which uses the time-correlated single-photon counting technique.