Can ZED camera recognize a small object (e. g. bolt washer) from distance 1m?

I have a use case in which I need to count small objects (e. g. bolt washer) which lie on a flat surface. The objects have a height of about 1-2 mm. The camera can be mounted parallel to the flat surface.

I don’t need to recognize colors, and I don’t expect to get any type of measurements (e. g. object position, or height). I just need to recognize that the object lies on a surface.

Is ZED camera good for this task?

Hi @trojek
1-2mm is a really small depth for pure stereo vision elaboration, I suggest not use the depth information to detect objects with such a size unless you are using a laser tool.
You can instead use classical computer vision algorithms (see OpenCV) and color information to detect them.