What are rgb-d cameras?

An RGB-D camera is like a super detective that sees both colors and how far things are from it.

Imagine you have a toy box full of blocks, cars, and dolls. A regular camera would only tell you what color each item is, like seeing the red car or the blue block. But an RGB-D camera can also tell you how close or far away each item is. It’s like having a ruler that tells you not just the colors but also the distance of everything in front of it.

Think of it as two friends working together:

• One friend (RGB) tells you what things look like, the red, blue, and green parts (that's why they're called RGB).
• The other friend (D) tells you how far away each thing is, kind of like measuring with a laser pointer or using your eyes to tell if something is near or far.

Together, they help the camera understand not just what it sees, but also where things are in space. This makes it super useful for robots and computers that need to know both what's around them and how close everything is!