Ask HN: Can iPhone camera be used to give you a full size keyboard?

Re:Ask HN: Can iPhone camera be used to give you a full siz... by sundeep on Thursday August 13, 2009 @07:41PM (#762002)

how would the computer know which key your finger was on to figure out what keys are relative to that finger?

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Re:Ask HN: Can iPhone camera be used to give you a full siz... by amichail on Thursday August 13, 2009 @07:54PM (#762023)

You could assume that the non-thumb fingers of a hand span at most two rows and that one of these is the "home" row.

When you detect a tap visually, you could then infer which row that finger tapped by looking at where the other non-thumb fingers are.

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Re:Ask HN: Can iPhone camera be used to give you a full siz... by sundeep on Friday August 14, 2009 @01:14AM (#762417)

i dont understand , are we still talking about a qwerty keyboard? or a special kind with just two rows, one of which is a "home" row that is placed wherever certain fingers are?

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Re:Ask HN: Can iPhone camera be used to give you a full siz... by amichail on Friday August 14, 2009 @02:16AM (#762483)

This would work with three rows, with the home row being the middle one.

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