[photo-3d] Caamera spacing, apparent size and some depth charge info.

["David Samuel" <dpsamu@xxxxxxxxx>]

If an image of a man standing, appeares on an 11 inch monitor at 
800x600 res viewed from a distance of 36-40 inches from the monitor. 
The image of the man will be 9 inches tall and 36 inches away. 

My experience with 3-d has led me to beliave that the mind weights the 
focal cue as the dominant cue as to the depth of the image.

In a 3-d image on a monitor, in order to have the correct width depth 
ratio, in either eye image, the man should appear to be 9 inches (600 
pixels)tall x 4.25 inches (400 pixels) wide x 4.25 (400 pixels deep).

To reconcile this with a real man 6 feet tall standing at a distance 
of 12 feet from the cameras the camera spacing should be 8 inches to 
result in the correct size depth ratio as it would appeare on a 
monitor. Whatever your final mounted size you should take this formula 
into account.

Depth Charge opened independent of a browser can view jpeg files 
without renaming by swiching in the file types box. Although in the 
file types box it has a bitmap type, my depth charge says that file 
type is unsuported. Also if the image is higher than 600 pixels, depth 
charge shrinks the image to fit the screen causing distortion 
(foggyness). Although the context menu has a button to view actual 
size it doesn't work. 

If you have red blue anaglyf glasses you can see an animation file I 
uploaded to the files area (if it's not too big, 600k) and see the 
results of all of the above. Adults only please.

SAMU  



 

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