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Quaternion-Based Spectral Saliency Detection for Eye Fixation Prediction
Boris Schauerte and Rainer Stiefelhagen
Karlsruhe Institute of Technology, Institute for Anthropomatics, Vincenz-Prießnitz-Str. 3 76131, Karlsruhe, GermanyAbstract. In recent years, several authors have reported that spectral saliency detection methods provide state-of-the-art performance in predicting human gaze in images (see, e.g., [1–3]). We systematically integrate and evaluate quaternion DCT- and FFT-based spectral saliency detection [3,4], weighted quaternion color space components [5], and the use of multiple resolutions [1]. Furthermore, we propose the use of the eigenaxes and eigenangles for spectral saliency models that are based on the quaternion Fourier transform. We demonstrate the outstanding performance on the Bruce-Tsotsos (Toronto), Judd (MIT), and Kootstra- Schomacker eye-tracking data sets.
LNCS 7573, p. 116 ff.
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© Springer-Verlag Berlin Heidelberg 2012