Browsing HiØ Brage by Author "Marentakis, Georgios"
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Analysing tensions faced by pre-service mathematics teachers engaging in digital fabrication.
Stigberg, Henrik; Hadjerrouit, Said; Kaufmann, Odd Tore; Marentakis, Georgios (Chapter; Peer reviewed, 2022)This article analyses tensions pre-service teachers faced during the last workshop of participation in a series of professional development workshops on digital fabrication for creating manipulatives for mathematics ... -
Compression efficiency and Signal Distortion of common PCA bases for HRTF Modelling
Marentakis, Georgios; Hôlzl, Josef (Chapter; Peer reviewed, 2021)Principal Component Analysis (PCA) has been often used for HRTF compression and individualization. However, there is significant variation in how the input matrix on which PCA is applied is constructed. Here, we study the ... -
Pictorize: Transforming image region luminosity to sound brightness for monitoring location
Marentakis, Georgios (Chapter; Peer reviewed, 2020)A novel algorithm for transforming static and moving images into sound is presented. The algorithm turns image areas into a sound whose brightness depends on image area luminocity. Subjective evaluation investigated the ...