Treatments were carried out respectively on the real measured displacement data of cam profile curve by means of using two kinds of processing methods namely cubic spline interpolation and multinomial least square matching.

Methods: This article is carried out in MATLAB based on the least squares polynomial fitting of the low-pass FIR filter denoising simulation.

Trend removal in the analysis of electrochemical noise by polynomial fitting;

Skull recognition with polynomial fitting contour;

Sliding polynomial fitting method and preferences in prediction of ship motion;

Realization of Polynomial Fit Based on Labwindows/CVI;

This paper introduces the use of polynomial fit in compensation for frequency response of a receiver,a good result is got,and the polynomial fit is a very useful tool.

After analyzing the relation between visual sensitivity characteristic and luminance variation, a new method, namely polynomial fit to gray scale correction, is proposed.

In this paper, the spectrum position error caused by multinomial fitting is analyzed and the correspond computer stimulation shows a improved precision in spectrum line detection.

To curtail the extra effect,and uses the measured sufficiently,slide multinomial fitting model is put forward.

Using the contrast matrix model,the multinomial fitting,the three dimensional look-up-table and the neural network method separately,the color space non-linear correspondence relationship was established,which demonstrated that CRT monitor equipment color space RGB has nothing to do with the equipment,and the color characterization of the equipment was completed.