Tuesday, November 3, 2015

Depth Perception(Monocular cues)

The monocular cues are used to judge depth perception

Relative Size
                       When two objects are the same size the object that appears larger will be the closest one, which is why the larges car appears to be the one in front.









Relative Motion
                             is when we perceive a stationary object to be moving when we are moving the closer the object the faster it seems to use. The picture below is trees being passed up by a train the trees look like they are zooming past but actually the train is the one that is moving.






Reversible Figures

Reversible Figures are optical illusions that uses graphical similarity between objects and shapes to cause us to be able to see two or more images. This image is an example that has half of a man's face but it can look as if you are looking at the side of the man's face or half of the front of his face.

Perceptual Constancy: Shape Constancy


Shape Constancy allows our minds to keep objects looking like the same shape despite changing stimulus. In the pictures, the door appears as a rectangle and slowly takes on more of trapezoidal shape but our eyes still perceive it to be a rectangle.

Monday, November 2, 2015

Binocular Clues

Retinal Disparity

By only using one eye the flower on the left looks farther away, but using two eyes the flowers look closer together.  This show's retinal disparity because in order to truly perceive the image and the depths of the two flowers you have to use both of your eyes instead of one.  

Convergence 



The man above has the phone close to his face therefore his eyes have to face inwards to see the phone properly.  Convergence is the neuromuscular cue that the eye must turn inward in order to see objects that are close and outwards to see objects far away.

Perception of Movement (stroboscopic motion)

Stroboscopic motion is caused by aliasing that occurs when continuous motion is represented by a series of short rapid or instantaneous samples. This example is of a fan which shows how our eyes can capture the movement as well because of its rapid short movements.