Digital transmission of intangible cultural heritage based on empirical modal analysis in a multicultural perspective

This paper firstly investigates the empirical modal decomposition image fusion technique, uses the empirical modal decomposition algorithm to calculate the instantaneous frequency to obtain the intrinsic modal function, and uses the two-dimensional implicit modal function to obtain the image features of intangible cultural heritage. Secondly, based on the digitization of paper-cutting art by image fusion technology, the pixel-level image fusion method is applied to fuse the paper-cutting paper with the designed Peking Opera face pattern, to maximize the original information of the paper-cutting paper, to realize the digital transmission of intangible culture by constructing an auxiliary paper-cutting design system, and to empirically analyze the research of paper-cutting intangible cultural heritage based on the empirical modal analysis method. The results show that in the analysis of the paper-cutting industry in Ui County, the ratio of time to 1917 exceeds 2.22 and reaches 3.00 by 1925 until 1943, when it reaches a peak of 3.25. The paper-cutting culture spread within the villages during this period, and the villagization characteristics of paper-cutting in Ui County are formed. This study digitizes intangible cultural heritage and contributes to the preservation and transmission of paper-cutting cultural heritage resources.