Is it possible to count objects you can't see? If you've ever received a boxed gift, or a mysterious package from Amazon, you might have tried to lightly shake the box to try to guess its contents.

This year, NMNH director Kirk Johnson helped spearhead an effort to add up the collections of the world’s largest museums Jack Tamisiea A small fraction of the more than 50 million specimens housed in ...

Are there any freely-available tools to count how many moving objects are in a video clip? That's a 5-second sample, and I can make a clip of any length, but in this particular case I'm not concerned ...