Low-contrast Acuity Under Strong Luminance Dynamics and Potential Benefits of Divisive Display Augmented Reality

Understanding and predicting outdoor visual performance in augmented reality (AR) requires characterizing modeling vision under strong luminance dynamics, including differences of 10000-to-1 a single image (high dynamic range, HDR). Classic models vision, based on displays with 100-to-1 contrast, have limited ability to generalize HDR environments. An important question is whether low-contrast visibility, potentially useful for titrating saliency AR applications, resilient saccade-induced dynamics. The authors developed an display system up 100,000-to-1 contrast assessed how dynamics affect acuity. They show that, immediately following flashes 25× or 100× luminance, acuity unaffected at 90% letter Weber only minimally affected lower contrasts (up +0.20 LogMAR 10% contrast). resilience across changes opens research divisive (ddAR) effectively titrate salience naturalistic luminance.