• NEW! LOWEST RATES EVER -- SUPPORT THE SHOW AND ENJOY THE VERY BEST PREMIUM PARACAST EXPERIENCE! Welcome to The Paracast+, eight years young! For a low subscription fee, you can download the ad-free version of The Paracast and the exclusive, member-only, After The Paracast bonus podcast, featuring color commentary, exclusive interviews, the continuation of interviews that began on the main episode of The Paracast. We also offer lifetime memberships! Flash! Take advantage of our lowest rates ever! Act now! It's easier than ever to susbcribe! You can sign up right here!

    Subscribe to The Paracast Newsletter!

Frame rate illusion

Forums New posts

Free episodes:

dusty

dusty

Skilled Investigator
Amazing camera frame rate sync illusion with a helicopter in flight,


I found this interesting because when I hear or read about the impossible manouveres ufo's are capable of I cant help but think that what we observe is the craft moving in time and not just space.
Here's a question.
Does the brain work like a camera when we process the data from our eyes, ie frame by frame?

Mark
 
Dusty

A great book to read up on how we process visual information by an academy award winning editor is walter murch's " in a blink of an eye, 2nd ed.".

at a raptor show an tell we were told that the eagle they had on display processes visual info at 100 times a second were humans were around 24 times a second on average. forgot how they got that number.

as a contract photographer for the USAF we were told to shoot a little slower then 150th a second or we would get the floating aircraft anomaly. plenty of cv -22s with stationery props at 3000 feet. oops...

looks like this is a euro/russian airframe and therefore the camera was probably running pal frame rate or a multiple of pal frame rate.

an interesting phenomenon is the videos that folks are recording with smartphones of turbo props from their window seat. you will see how difficult it is for the sensor to keep in time with the info coming through the lens. weird images of props bending, falling apart, shearing. look for these on the web.

hopefully this will help.

Laurence
 
Excellent, thanks ever so much Lawrence,

Your point about how fast an Eagles eye processes visual info is interesting. Could this help explain why it is that animals often cats, stare at a point for no apparent reason.
What if anything are we missing I wonder?

Mark

Ps I will keep an eye out ;) for that book.
 
Thanks Xylo,

Pretty comprehensive link that. Good to know about Air force pilots recognition abilities quoted in test 3. I wonder if I could do the same with guitars :).

Also I would like to see what Dorothy Izaat might capture with a high speed video camera.

Mark
 
dusty said:
Thanks Xylo,

Pretty comprehensive link that. Good to know about Air force pilots recognition abilities quoted in test 3. I wonder if I could do the same with guitars :).

Also I would like to see what Dorothy Izaat might capture with a high speed video camera.

Mark
Click to expand...

You got me all interested in the subject matter now. Here's a pretty interesting (but long-ish) presentation on vision and the how the mind interprets what our eyes see.
http://fora.tv/2009/06/24/Seeing_Myself_See_The_Ecology_of_Mind
 
Xylo said:
You got me all interested in the subject matter now. Here's a pretty interesting (but long-ish) presentation on vision and the how the mind interprets what our eyes see.
http://fora.tv/2009/06/24/Seeing_Myself_See_The_Ecology_of_Mind
Click to expand...

Just finished watching Darren Aronofsky's "Pi" on dvd, brilliant btw.

And now this, excellent Thanks Xylo.

You know when you drink to much and you get drunk.
Well I think I think to much and now I'm thunk.

Cheers and night night,

Mark
 
When I was studying Psychology we spent quite some time with visual perception and illusions. It's pretty interesting to see just how easy it is to fool the brain.
 
Back
Top