Generating apparatus and method for generating coefficient data, processing apparatus and processing method of the information signal using the same coefficient seed generator and method of generating data used to it

摘要

PROBLEM TO BE SOLVED: To obtain coefficient data Wi changing variously corresponding to the change in the value of parameters. SOLUTION: A class code CL of a target pixel of an HD signal is obtained from pixel data extracted from an SD signal. A memory bank 135 stores coefficient kind data of a plurality of kinds generated by learning between a teacher signal and a plurality of kinds of pupil signals obtained by using degrading filters whose frequency characteristics are changed by a plurality of feature quantity (band and shoulder characteristic or the like) from the teacher signal for each class. Coefficient data Wi for an estimate formula corresponding to values h1 , v1 , h2 , v2 adjusted by a user are generated by each class on the basis of the coefficient type data stored in the memory 135 are stored in a memory 134. An arithmetic circuit 127 uses the estimate formula from pixel data xi extracted from the SD signal and the coefficient data Wi corresponding to the code CL from the memory 134 to calculate pixel data of the target pixel of the HD signal.