Fig. 5: Products resulting from the fabrication of the test artifact.
From: High-fidelity optical monitoring of laser powder bed fusion via aperture division multiplexing

a As-built image of the test artifact prepared for micro-CT. b Representative slice of the micro-CT dataset. c Process signatures extracted from the video data at approximately the same location in the test artifact as b. The size scale bar applies to all images, and color scales are qualitatively adjusted to clarify variation across the component cross-section. d Thresholded density and alarm datasets, along with overlay (center), showing that voids and corresponding alarms are not necessarily co-incident. These images are not to scale due to the different vertical and horizontal resolutions of the alarm datasets.