What does Binocular Parallax refer to in depth perception?

Binocular parallax is a key concept in depth perception that refers to the way an object appears differently when viewed from the perspectives of both eyes. This phenomenon arises because our two eyes are located a few centimeters apart, leading them to capture slightly different images of the same scene. The brain processes these two images, noting the differences, which helps in gauging depth and distance of objects in the environment.

When both images are compared, the brain interprets the disparities as cues for how far away the objects are; closer objects will show greater parallax (more difference between the images) than objects that are farther away. This differential perspective forms a crucial aspect of how we perceive the three-dimensional world around us.