perception 23x graphical perception 5x human visual system 3x jitter 2x perceptual organization 2x psychophysics 2x visual cues 2x visual perception 2x 3d shape perception 1x applied perception 1x brightness matching 1x depth 1x expressive cue 1x human vision 1x human visual perception 1x layer perception 1x motion detection 1x movement patterns 1x multi-scale perceptual organization 1x perception models 1x perception of correlation 1x perception theory 1x perceptual cues 1x perceptual interactions 1x perceptual reasoning 1x perceptual study 1x perceptual theories 1x perceptual transparency 1x perceptually-based visualization 1x peripheral vision 1x retinal 1x scene perception 1x shape perception 1x slope perception 1x spatial frequency 1x spatial perception 1x texton 1x visiblity 1x visual acuity 1x visual grouping 1x visual processing 1x visual tracking 1x weber's law 1x