Do not run out onto the highway at night to point your laptop's webcam into the headlights! We can devise more convenient and safer ways to test The Living Headlights, even if you don't own a car or don't drive.
A pair of LED flashlights is a good proxy for a pair of headlights. A flashlight with many LEDs (for example, 19) is preferable because it creates a denser circle of light that is more likely to be detected as exactly one blob. To ensure that the distance between the two flashlights remains constant, we can attach them to a rigid object, such as a board, using brackets, clamps, or tape. My father Bob Howse is great at constructing such things. Take a look at my flashlight holder in the following image:
The following image shows a frontal view of the flashlight holder, including a decorative grill:
Set up the lights...