On 3/26/2013 10:47 PM, Mark Robinson wrote:
> On 26/03/13 23:56, Geoff wrote:
>> I like the idea of using a WEBcam or something to look at the red dot
>> then use a custom program to read the video and turn the graphic data
>> into rectangular coordinates of a standard four quadrant graph
>> with the point resting in the center of the graph
>> But to do this in near real time may not be possible for myself to do.
>> The max rate will be like 30Hz to 60Hz which is a video frame rate.
>> Video is usually encoded and needs to be uncompressed.
>> Uncompressing video takes lots of time to do so like a
>> series of BMP captures at whatever rate would be the thing to do.
>> You would take screenies at like 30 per second in a modulo fashion
>> then save all after an alarm and the series of like
>> 108000 BMP images would be decoded into a series of (X,Y) coordinates ??
>
> This sounds a bit like a modified optical mouse.
>
>
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No, more like a modified High Resolution CCD.
Something in the world of Astro Physics.



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