Researchers at Aalto UniversityÂ contribute a novel technique to facilitateÂ skim reading.
In response to motion blur and short object exposure when scrolling large documents, theyÂ present Spotlights, a scrolling technique that complements regular continuous scrollingÂ at high speeds (2â€“20 pages/s). TheyÂ present a novel design rule informed by theories of the human visual system for dynamically selecting objects and placing them on transparent overlays on top of the viewer. This improves the quality of visual processing at high scrolling rates by limiting the number of objects, ensuring minimal processing time per object, and keeping themÂ static to avoid motion blur. Comprehension levels for long documents were comparable with those in continuous-rate-based scrolling, but Spotlights showed significantly better scrolling speed, gaze deployment, recall, lookup performance, and user-rated comprehension.
Long paper by Byungjoo Lee,Â Olli Savisaari andÂ Antti Oulasvirta,Â accepted at CHI 2016.