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Distance Calibration on A620

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Offline lks

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Distance Calibration on A620
« on: 03 / February / 2008, 12:20:50 »
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This is a technical question for Richard Lemieux (or others) on the A620 distance calibration.

I notice in http://www.cooptel.qc.ca/~rlemieu/rf2_a620_calibration.html that when plotting (1/s, x) that all the lines seem to pass through roughly (.022, 0).

If this is true, wouldn't that mean that a better way to calibrate the camera would be to fit x = a1 * ((1/s) + c), where a1 varies by focal length and c is a constant?

Also, why should the parameter for d0 ever change?

Thanks.

 

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