Patent ID: 8311963

Claim:
A signal processing apparatus for carrying out signal processing to convert input data into output data with a quality higher than the quality of said input data, said data processing apparatus comprising: first data extraction means for extracting a plurality of data included in said input data from said input data as data located at positions corresponding to the position of data of interest included in said output data and peripheral positions surrounding said position of said data of interest; nonlinear feature quantity computation means for finding a nonlinear feature quantity for said data of interest from said data extracted by said first data extraction means; processing coefficient generation means for generating a second processing coefficient by carrying out a computation process on said nonlinear feature quantity and a first processing coefficient already learned in advance from student data corresponding to said input data and teacher data corresponding to said output data in a learning process according to a normal equation based on a relation equation for generating said teacher data by carrying out a computation process on said student data and the second processing coefficient obtained in accordance with the nonlinear feature quantity of said student data and the first processing coefficient; second data extraction means for extracting a plurality of data included in said input data from said input data as data located at position corresponding to said position of said data of interest and said peripheral positions surrounding said position of said data of interest; and data prediction means for predicting said data of interest by carrying out a computation process on said data extracted by said second data extraction means and said second processing coefficient.