Working on a machine vision project requires understanding each part of the system, including light sources, frame grabbers, and computers. Here is a primer on two essential machine-vision terms.

Perhaps the best known maxim about depth of field is that larger sensors give you less of it, and in general this is true, though there are actually many exceptions. For the sake of this discussion, ...

Replay: You can't go far without understanding the relationship between sensors, lenses and depth of field, only it's slightly more complicated than you might have thought!. Phil Rhodes makes it ...

Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D ...

“In optics, there was a problem,” says Amit Agrawal, a physicist at the National Institute of Standards and Technology in Gaithersburg, Md. If you wanted to focus a single lens to two different points ...

A new trilobite-like camera lens has been developed, and it offers a feature that is not yet integrated into the mainstream camera devices, such as DSLRs and video cams developed by Sony, Nikon, and ...