Tuesday, November 1, 2016

Monocular Cues

-Relative size: When we assume that one of two objects is smaller in size, it must be because it is farther away than the other. We see this in drawings that are 2 dimensional. We think that one object is farther back in the drawing than the other because it is drawn smaller. For example, the cow in the photo below is farther back than Donald Duck because he is drawn smaller.
                                                           36194219-cartoon-pics.jpeg
-Relative motion: When you are in motion and looking at an object, you seem to move faster as the objects get larger and closer to you.
-Relative height: When we see two objects and one is higher than the other, we perceive the higher object to be farther away. For example, we see this when looking across a room and seeing a table in the center of the room and a painting on the far wall. The painting on the wall is seen as farther away than the table because the painting is higher in our field of vision.
-Relative clarity: When we see foggy or blurry objects to be farther away than clear or sharp objects. We think the blurred object is farther away because our eyes like to focus on the clear objects in the foreground and we perceive them as closer to us. For example, in portraits, when the background is blurred, we perceive the person in the photo to be closer to us because they are the focus of the picture.

Shape constancy

Shape Constancy is how we perceive the form of familiar objects as constant even when the angle of the image changes. For example when we look at a plate from any angle we know that it is a circle. However a plate is only a circle if you look at it head on. From any other angle it starts to form an ellipse.













 https://ep002.files.wordpress.com/2014/02/plate-1.jpg
https://ep002.files.wordpress.com/2014/02/plate-2.jpg

Lauren- Law of Continuity

The Law of Continuity states that points that are connected by straight or curving lines are seen in a way that follows the smoothest path. Rather than seeing separate lines and angles, lines are seen as belonging together. For example, continuation occurs in the picture below, because the viewer's eye will naturally follow a line or curve. The smooth flowing crossbar of the "H" leads the eye directly to the maple leaf.
http://graphicdesign.spokanefalls.edu/tutorials/process/gestaltprinciples/gestaltprinc.htm

Lauren- Law of Similarity



The law of similarity is a Gestalt principle of organization holding that parts of a stimulus field that are similar to each other tend to be perceived as belonging together as a unit. This is in an assumption that all other aspects related to the stimuli are equal. We tend to group things together based on their similar aspects.  For example, in the picture below, many people see vertical columns of triangles and circles because they group the similar shapes together. Another example of this would be grouping laundry together based upon color.  




https://www.crafthubs.com/sorting-laundry/21262

Lauren- Law of Closure

The Law of Closure is a Gestalt principle of organization holding that there is an innate tendency to perceive incomplete objects as complete and to close or fill gaps and to perceive asymmetric stimuli as symmetric. An example of this would be if a circle was drawn using broken lines. It would still perceived by the brain as a circle. Through this example, you can infer the brain's tendency to ignore the gaps and see the figure as a circle. 

Reversible Figures

A reversible figure is a generalized image that can be interpreted from different perspectives as two distinct images.  Two people can look at the same picture and perceive completely different things.  For example, I see both a duck and rabbit when I look at this image from different perspectives.

https://psychlopedia.wikispaces.com/Ambigous+Figures

Tuesday, October 25, 2016

Perception of Movement

Stroboscopic motion is also an illusion of apparent motion.  However, unlike the phi phenomenon, stroboscopic motion is created when series of still images are rapidly flashed one after another, so it appears that an object is moving.  Stroboscopic motion is evident in a series of still photos taken of a dancer in different positions.  When quickly shown an image of each individual pose, the dancer appears to be moving. 
http://www.deviantart.com/tag/stroboscopic