Figure 3
Two practical applications of a time-of-flight microwave camera are demonstrated.
In (A) we visualize the propagation of microwaves across a metal peacock ornament as a color-coded time sequence, similar to a “light in flight” movie18,22. Here a grayscale, visible-light image is overlaid with color-coded data from the microwave camera. The red channel is the response at an early reference time, the green channel is the response at an additional 588.2 ps and the blue channel is the response 1078.4 ps after the reference time. One can see the curve of the microwave as it crosses the scene and reflects off of features. In (B) the microwave camera is used to inspect the contents of a box to ensure proper packaging. A set of push pins are placed on three pieces of styrofoam inside of a shipping box in the shape of the letters “M”, “I” and “T”. By separating the images in time, it is possible to see the three different layers. In (C) the average intensity at 700 ps around each center point is shown.
