{"pk":26143,"title":"A Perception-Based Threshold for Bidirectional Texture Functions","subtitle":null,"abstract":"For creating photorealistic images, Computer Graphics re-searchers introduced Bidirectional Texture Functions (BTFs),which use view- and illumination-dependent textures for ren-dering. BTFs require massive storage, and several proposalswere made on how to compress them, but very few take intoaccount human perception. We present and discuss an exper-imental study on how decreasing the texture resolution influ-ences perceived quality of the rendered images. In a visualcomparison task, observer quality judgments and gaze datawere collected and analysed to determine the optimal down-sampling of BTF data without significant loss of their per-ceived visual quality.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Perceived image quality; realistic rendering;threshold in image perception; eye tracking."}],"section":"Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/9w80j8xj","frozenauthors":[{"first_name":"Banafsheh","middle_name":"","last_name":"Azari","name_suffix":"","institution":"Bauhaus-Universit ̈at Weimar","department":""},{"first_name":"Sven","middle_name":"","last_name":"Bertel","name_suffix":"","institution":"Bauhaus-Universit ̈at Weimar","department":""},{"first_name":"Charles","middle_name":"A.","last_name":"Wuethrich","name_suffix":"","institution":"Bauhaus-Universit ̈at Weimar","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2016-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/26143/galley/15779/download/"}]}