Time-dependent visual adaptation for fast realistic image display

Human vision takes time to adapt to large changes in scene intensity, and these transient adjustments have a profound effect on visual appearance. This paper offers a new operator to include these appearance changes in animations or interactive real-time simulations, and to match a user’s visual responses to those the user would experience in a real-world scene. Large, abrupt changes in scene intensities can cause dramatic compression of visual responses, followed by a gradual recovery of normal vision. Asymmetric mechanisms govern these timedependent adjustments, and offer adaptation to increased light that is much more rapid than adjustment to darkness. We derive a new tone reproduction operator that simulates these mechanisms. The operator accepts a stream of scene intensity frames and creates a stream of color display images. All operator components are derived from published quantitative measurements from physiology, psychophysics, color science, and photography. Kept intention...

• Type: Conference
• Year: 2000
• Where: SIGGRAPH
• Authors: Sumanta N. Pattanaik, Jack Tumblin, Yangli Hector Yee, Donald P. Greenberg
• Keywords: Computer Graphics, Operator, Scene Intensity, SIGGRAPH 2000, Visual Responses