Singular spectrum analysis-based image sub-band decomposition filter banks
Julia Evers, Florian Evers, Florian Goppelt, Ronald Schmidt-Vollus · EURASIP Journal on Advances in Signal Processing · 2020
Abstract This paper presents a novel type of a filter bank for image decomposition that incorporates “singular spectrum analysis” (SSA). SSA is based on “singular value decomposition” (SVD).The presented filter banks provide good directional selectivity. Sub-band images highlight exposed directional features such as 0∘,90∘,+ 45∘, and − 45∘of the input image. The proposed method can be seen as a tool to separate an image into layers or to present an image as a sum of its high-frequency directional components and a low-frequency approximation.