COEFFICIENT DATA GENERATING APPARATUS AND COEFFICIENT DATA GENERATING METHOD

PROBLEM TO BE SOLVED: To generate coefficient data corresponding to a signal source of a first image signal as coefficient data to be used when converting the first image signal into a second image signal. SOLUTION: A signal processing section 152 processes a teacher signal (HD-DA) corresponding to the second image signal to obtain an input signal (SD-DA) corresponding to the first image signal. In such a case, the signal processing section 152 further processes the teacher signal to be an input signal corresponding to the signal source of the first image signal. A region segmentation circuit 160 sequentially segments signals of pixels in a first region from the input signal in accordance with signals of a plurality of pixels comprising the teacher signal. An equation generation circuit 161 generates an equation for obtaining coefficient data Wi from the signals of the plurality of pixels comprising the teacher signal and the signals of the pixels in the first region sequentially segmented by the region segmentation circuit 160. A prediction coefficient determination circuit 162 solves the equation to obtain the coefficient data Wi. COPYRIGHT: (C)2005,JPO&NCIPI