Perceptual Comparison of Four Upscaling Algorithms for Low-Resolution Rendering for Head-mounted VR Displays

Mario König, Martin Misiak and Arnulph Fuhrmann
In: Virtuelle und Erweiterte Realität – 16. Workshop der GI-Fachgruppe VR/AR, 2019, Fulda, Germany

Comparison of three different upscaling algorithms and the reference.


When rendering images in real-time, shading pixels is a comparatively expensive
operation. Especially for head-mounted displays, where separate images are rendered for
each eye and high frame rates need to be achieved. Upscaling algorithms are one possibility
of reducing the pixel shading costs. Four basic upscaling algorithms are implemented in a
VR rendering system, with a subsequent user study on subjective image quality. We find
that users preferred methods with a better contrast preservation.


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