wiz@xroads.UUCP (Mike Carter) (02/24/89)
Hi. Was discussing some things with a local camera nut here recently. He says that they're using a "contrast" scan on some sort of matrix that is illuminated with the reflected light through the lens of a auto-focusing camera. Apparently, the way this thing is supposed to work is a circuit scans a bit-map off some kind of optical matrix olight-sensitive transistors (or the like) and looks for fuzzyness (instead of solid 11111100001111.....something like 111001101011000101011111)...where the 1's and zeros represent the image of an item to be photgraphed. I'm interested in finding out exactly what kind of matrix they're using and if these things are available to us "Terror Through Science" types ? Using an aspect ratio from a lens, I suppose it wouldn't be too difficult to ascertain a rough idea of distance to the physical object given the required amount of "zooming" etc. Does someone know enough about auto-focus camera's to enlighen us "Use high-powered radar to see 20 feet" basement hacks ? Thanks in advance. -Mike , 'TERROR THRU SCIENCE?'..ask my wife....and my nieghbors...and my parents....and my employer...and my old science teacher.... -- ============================================================================= = Mike Carter N7GYX, Phoenix AZ| Q: Why did the Chicken cross the road ? = = hplabs!hp-sdd!crash!xroads!wiz| A: To ESCape the Main Menu . = =============================================================================