In the Object or Ground task, how should Street Sign be labeled?

In the Object or Ground task, how should Street Sign be labeled?

• A. Object
• B. Unknown
• C. Ground
• D. Hazard

Answer: (C)

This question tests how we separate what belongs to the ground plane from what counts as a separate object in the scene. A street sign is attached to the ground and sits on the surface infrastructure of the street (the road or sidewalk). In this labeling scheme, that makes it part of the ground category rather than a standalone object you could pick up or move. So the appropriate label is Ground. Labeling it as Object would imply it’s a discrete, movable item, which doesn’t fit how the scene is interpreted here. Unknown is for indeterminable cases, and Hazard isn’t indicated here.

This question tests how we separate what belongs to the ground plane from what counts as a separate object in the scene. A street sign is attached to the ground and sits on the surface infrastructure of the street (the road or sidewalk). In this labeling scheme, that makes it part of the ground category rather than a standalone object you could pick up or move. So the appropriate label is Ground. Labeling it as Object would imply it’s a discrete, movable item, which doesn’t fit how the scene is interpreted here. Unknown is for indeterminable cases, and Hazard isn’t indicated here.