Archive for the ‘Weekly Optical Illusion’ Category
Now, this is a bit unbeliveable. Steven Fry has never been one to beat around the bush, he is almost as well known for signature dry british humor as he is for his rather robust twitter following. But even the stoic power of a british comedian has to be fascinated by this optical illusion of Albert Einstein…
You can literally watch this a thousand times and still get the same false impression of perspective. As Steven says ” Your Brain is programmed to recognize human faces” in other words your perception of seeing a “face” and expectation of it being a “face” becomes your reality… I had to dig a little deeper though before I was completely satisfied with this explanation. Wouldn’t you know it our old friend Dr. Richard Gregory offers up an explanation for what he dubs the “hollow face illusion”
“The strong visual bias of favouring seeing a hollow mask as a normal convex face is evidence for the power of top-down knowledge for vision.”
In Short: your perception of seeing a “face” and you expectation of it being a “face” becomes your reality.
Friday, August, 17 2012 by Ryan
more commonly known as the “Cafe Wall illusion” this is a common optical gem that consists of scattered white and black bars which completely throws off your spatial senses. The discovery and description of this particular type of optical trick is attributed to British Psychologist Richard Gregory who first made the observation in the 1970′s that the tiling and the positioning on a cafe wall of black and white bars threw off the appearance that the tiles were tilted (which in reality…they are not)
The use of this striking pattern is extremely common on buildings and within optical illusions, and the odds are pretty likely that you yourself have seen this phenomenon first hand. Dr. gregory and his staff apparently discovered it themselves (ostensibly out of boredom) while they were analyzing the tile of a cafe across from their office.
So what do you think? Have you seen any instances of the Cafe Wall Illusion around your town?
Friday, July, 13 2012 by Ryan
The use of aerial perspective and positioning of the sun is what makes these long shadows appear to make each of these respective creatures appear to be defying gravity. What do you think?
Friday, June, 8 2012 by Zenni Optical
Fascinating stuff: A little digging through the internet reveals that this particular optical illusion is a result of something called “Flashed face distortion effect” (for now at least…they need to come up with a catchier title no?)
It is the assertion of a few fellas at the University of Queensland that when you look at the cross in the center and view the faces in your peripheral vision, then the faces most outward features will appear uncharacteristically grotesque…well…You’ll get no argument from me. Check it out.
For the Full Effect Click Here and enlarge!
Friday, May, 25 2012 by Zenni Optical
Interestingly enough this illusion comes from MIT Professor of Brain and cognitive sciences Aude Olivia in her projet entitled “Computational Perception: Hybrid Images” Up close the photo clearly looks like the famous physicist Albert Einstein, but step back a few meters (or squint your eyes) and an image of 1960′s movie star Marilyn Monroe comes into focus. The effect is a result of the combination of the low spatial frequencies of one picture combined with the high spatial frequencies of another picture. So in other words, the distance you are away from an object when looking at it, affects what you see when looking at that object…well, WE could have told you that.
Thursday, May, 10 2012 by Zenni Optical