Question

Which pair of cues are consistently effective within personal and action space (<30m)?

1) Convergence and accommodation
2) Texture density and aerial perspective
3) Binocular disparity and motion parallax
4) Occlusion and relative size

Answer 1

Effective depth perception cues within personal and action space under 30 meters are binocular disparity and motion parallax.

Step-by-step explanation:

When considering which pair of cues are consistently effective within personal and action space (<30m), we focus on the modes of depth perception available to us. Binocular cues, such as binocular disparity and motion parallax, are very effective within this range. Binocular disparity refers to the slight difference between the visual input from each eye due to their horizontal separation, which the brain translates into depth. Motion parallax occurs when, as we move, objects that are closer to us move faster across our field of view than those that are further away, providing another strong depth cue. Therefore, the pair that fits the criteria for effectiveness within personal and action space is option 3, binocular disparity and motion parallax.

Answer 2

The pair of cues that are consistently effective within personal and action space (<30m) is 4) Occlusion and relative size.

Explanation:

Occlusion and relative size are cues that play a crucial role in depth perception within personal and action space. Occlusion, or the partial blocking of one object by another, provides a clear indication of which object is closer. This is particularly effective within short distances where the observer can easily discern objects blocking each other. Relative size involves the perception that closer objects appear larger than those farther away. This cue is consistently effective within personal space as it helps individuals judge the proximity of objects based on their size.

Convergence and accommodation (Option 1) are more relevant to the binocular vision process and are effective at longer distances. Texture density and aerial perspective (Option 2) are cues that may vary in effectiveness depending on the specific context and are not consistently applicable within the specified range. Binocular disparity and motion parallax (Option 3) are more associated with longer distances and are not as reliable within personal and action space.

In summary, 4)occlusion and relative size are cues that provide reliable depth information within short distances, making them consistently effective within personal and action space. These cues are fundamental to our ability to navigate and interact within our immediate surroundings.