Which depth perception cue involves the convergence of parallel lines?

The correct concept regarding the convergence of parallel lines in depth perception is linear perspective. This visual cue relies on the fact that as parallel lines recede into the distance, they appear to converge toward a single point on the horizon, commonly known as the vanishing point. This phenomenon helps observers gauge depth and distance by creating an illusion of three-dimensional space on a two-dimensional plane, such as a painting or photograph.

In contrast, the other options refer to different depth perception cues. Interposition involves objects blocking others to indicate depth, relative size refers to the size of objects relative to one another to gauge distance, and binocular parallax relies on the slightly different perspectives of our two eyes to perceive depth. Each of these serves distinct roles in how we interpret visual information, but linear perspective specifically addresses the convergence of parallel lines as a cue for depth perception.