We report dual-view band-limited illumination profilometry (BLIP) with temporally interlaced acquisition (TIA) for high-speed, three-dimensional (3D) imaging. Band-limited illumination based on a digital micromirror device enables sinusoidal fringe projection at up to 4.8 kHz. The fringe patterns are captured alternately by two high-speed cameras. A new algorithm, which robustly matches pixels in acquired images, recovers the object’s 3D shape. The resultant TIA–BLIP system enables 3D imaging over 1000 frames per second on a field of view (FOV) of up to 180 mm × 130 mm (corresponding to 1180×860 pixels) in captured images. We demonstrated TIA–BLIP’s performance by imaging various static and fast-moving 3D objects. TIA–BLIP was applied to imaging glass vibration induced by sound and glass breakage by a hammer. Compared to existing methods in multiview phase-shifting fringe projection profilometry, TIA–BLIP eliminates information redundancy in data acquisition, which improves the 3D imaging speed and the FOV. We envision TIA–BLIP to be broadly implemented in diverse scientific studies and industrial applications.

中文翻译：

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使用时间交错采集的高速双视图带限照明轮廓测量法

我们报告了用于高速三维 (3D) 成像的具有时间交错采集 (TIA) 的双视图带限照明轮廓测量法 (BLIP)。基于数字微镜器件的带限照明可实现高达 4.8 kHz 的正弦条纹投影。条纹图案由两个高速相机交替捕获。一种新算法可以稳健地匹配获取图像中的像素，可以恢复对象的 3D 形状。由此产生的 TIA-BLIP 系统能够在捕获的图像中在高达 180 mm × 130 mm（对应于 1180 × 860 像素）的视场 (FOV) 上进行每秒 1000 帧以上的 3D 成像。我们通过对各种静态和快速移动的 3D 对象进行成像来展示 TIA-BLIP 的性能。TIA-BLIP 被应用于对声音和玻璃破碎引起的玻璃振动进行成像。与现有的多视角相移条纹投影轮廓测量方法相比，TIA-BLIP 消除了数据采集中的信息冗余，从而提高了 3D 成像速度和 FOV。我们设想 TIA-BLIP 将在各种科学研究和工业应用中广泛实施。