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Aug 4 '12 at 13:23 comment added Ankush the thing is two points in a plane uniquely define a line. we can treat range mapping as straight line. and we know two points on that line. solving it will give line equation. may be linear interpolation is not the right word here, but I wanted to mean set of inner points between those two points on this line.
Aug 4 '12 at 11:08 comment added Lars Viklund In our field, the common meaning of linear interpolation tends to be that you mix linearly between two quantities with a blending factor like this: v = (1-a)*x + (a)*y. I don't see how this answer has much relevance to the question asked as all he wants is a range mapping.
Aug 2 '12 at 12:45 history answered Ankush CC BY-SA 3.0