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IS-AUR-Samarb.progr. Norge Frankrike

Orientation selectivity in chromatic contrast sensitivity of the human visual system and its consequences on display quality

Tildelt: kr 50 000

Contrast is important in our visual system. Contrast sensitivity is a measure of our ability to discern between different luminance levels in an image. It is well-known that contrast sensitivity various between individuals, changes over time, and at spati al frequencies. To a human observer horizontal and vertical lines are more visible than diagonal ones. The so-called "oblique effect" has been known for many years, where the contrast sensitivity decreases considerably for oblique ratings. Experiments hav e shown contradictory results for whether this oblique effect exists for chromatic gratings or not. In this work we propose to investigate orientation selectivity in the chromatic channels and its consequences on display quality. Through collaboration be tween Gjøvik University College and University of Burgundy we will collect data on the selectivity of chromatic gratings for oblique patterns in Norway and France. The complementary experience and skills of the two institutions is a key factor for the suc cess of the project.


IS-AUR-Samarb.progr. Norge Frankrike