How did he do that?
Here’s some more street art, only of a different type. Watch this video closely and see if you can work out how this trick was done!
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Optical Illusions
Optical illusions (also called visual illusions) are characterized by visually perceived images that are deceptive or misleading. The information gathered by the eye is processed by the brain to give a percept that does not tally with a physical measurement of the stimulus source. There are two main types of illusion - physiological illusions that are the effects on the eyes and brain of excessive stimulation of a specific type - brightness, tilt, color, movement, and cognitive illusions where the eye and brain make unconscious inferences.
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Physiological Illusions
Physiological illusions, such as the afterimages following bright lights or adapting stimuli of excessively longer alternating patterns (contingent perceptual aftereffect), are presumed to be the effects on the eyes or brain of excessive stimulation of a specific type - brightness, tilt, color, movement, etc. The theory is that stimuli have individual dedicated neural paths in the early stages of visual processing, and that repetitive stimulation of only one or a few channels causes a physiological imbalance that alters perception.
Cognitive Illusions
Cognitive illusions are assumed to arise by interaction with assumptions about the world, leading to "unconscious inferences", an idea first suggested in the 19th century by Hermann Helmholtz. Cognitive illusions are commonly divided into ambiguous illusions, distorting illusions, paradox illusions, or fiction illusions.
December 30th, 2007 at 12:34 pm
I would say when the camera moved a bit the “thing” was changed by an other person…
mig’s last blog post..Probleme ueber Probleme
December 30th, 2007 at 4:58 pm
[VID]¿Cómo ha hecho eso?…
Increible ilusión óptica la que nos presentan en el siguiente video, nos hace ver como un cubo aparentemente hecho con palillos puede convertirse en simples tiras de cinta aislante…
December 31st, 2007 at 1:24 am
I would agree with Mig, I think the 3D cube was placed in such a way as to obscure the taped cube.
First, the disc was replaced the first time it was off screen. It clearly is a ball and not a disc before he places it on the ground. Second, the 3D cube was picked up and then (we are led to assume) replaced in exactly the same position. No magic or even a true illusion. Just some off-camera action where we are led to assume the wrong thing.
But an interesting video to watch.
Jeff Moulton’s last blog post..Tracking Santa
January 6th, 2008 at 2:19 pm
the disc was replaced with a ball off-camera.. and the cube was pushed away nd not kept at the place… we can see it clearly in the video, he throws the cube nd doesnt plae it..
January 9th, 2008 at 8:31 pm
El video está genial, me gustarÃa secuestrarlo para mi blog, ya se que la magia hay que disfrutarla y punto, jugar a ver los trucos es una estupidez pero… no lo pude evitar… si os fijais bien en la grabación se ven los “trucos” con toda claridad.
January 11th, 2008 at 5:46 pm
magic
January 11th, 2008 at 11:05 pm
you´re right, it looks like a perfect illusion, but with the help of some other persons around him, the trick seems to be unbelievable. but if you watch exactly every step of explanation, you cab imagine when he changes the flat paper into a ball in the second you can´t see his right hand, then it´s the time he gets the ball. teh same with the cube, the stripes on the street are there before, when he “takes it out” -…it´s just a “perfect” illusion by watchin git at the first times, then by recognizing the steps, it´s just good timing- but impressive!
January 11th, 2008 at 11:08 pm
for a second( second 0:40) you can also see the rest of an white cube in the right side of the screen..funny, by watching it for the tenth time, you see more and more things…
February 2nd, 2008 at 8:08 pm
well, if u check the first cube and the last one, u will see one has larger sticks. thats cuz the real 3d stick in on the top of the other, and by that camera perspective u dont even notice. also, when he picks it up, the camer doesnt moves. the sticks are those things that when u bend just a lil, they shrink very fast. u can see that just before it disapears, he bends it just a lil
nice video
February 25th, 2008 at 11:47 pm
when he is talking about his disk, someone lays down the fake cube. when he says “in relationship” watch carefully. he sets down the cube and it goes out of view for a split second. really, he’s handing it off. watch his hands. he trades his paper disk with a ball with slight of hand while he distracts you with his talk about the cube.
May 5th, 2008 at 5:43 pm
I believe the video was edited, and the 3D cube substituted for the tape …
3D Aircraft Modeling’s last blog post..National Institute For Aviation Research (NIAR)