Patent ID: 7015936
Filing Date: 2006-03-21
Classification: G06T

Abstract:
1. A method for scaling data from source data to destination data used in a scaling device, wherein the scaling device is to determine a function f(x) to describe the destination data, in which x is a deviation from a current reference point 0, and two reference data of f(0) and f(1) are used as reference data, the method comprising: setting an initial condition about a slope D with respect to the function f (x) at the point 0, a gain factor G to time the slope D, and f′(0)=f′(1)=DG, wherein the initial condition is stored in the scaling device; setting the f(x) stored in the scaling device as a quadratic equation of f(x)=ax solving coefficients of a, b, and, c by the scaling device, in two ranges of 0≦x<0.5 and 0.5≦x<1, so as to obtain the function f(x), with a joint at the middle point, wherein the solved function f(x) is used to scale the source data to the destination data; and repeating the foregoing steps for a next source data.