High-Dynamic-Range (HDR) Theory and Technology
Instructors: John McCann, McCann Imaging and Alessandro Rizzi, University of Milano
Level: Overview
Duration: 2 Hours
Course Date/Time: Sunday 15 January 13:30 - 15:30

Benefits:
This course enables the attendee to:

• Measure the optical limits in acquisition and display; in particular measure the scene dependent effects of optical glare.
• Compare the accuracy of scene capture using single and multiple-exposures in normal and RAW formats.
• Engage in a discussion of human spatial vision that responds to the retinal image altered by glare.
• Engage in a discussion of current HDR TV systems and standards: tone-rendering vs. spatial HDR methods.
• Explore the history of HDR imaging.

Course Description:
To understand HDR imaging is to understand the properties and limitations of the Artist's Goal, the Calculated Sensation Goal, and the Accurate Scene Radiance Goal.

This course emphasizes measurements of physics (accurate reproduction) and psychophysics (visual appearance). Physics shows limits caused by optical glare; HDR does not reproduce scene radiances. Psychophysics shows that human vision's spatial-image-processing renders scene appearance.

The course reviews successful HDR reproductions; limits of radiance reproduction; HDR TV's technology and standards; appearance and display luminance; and appearance models. HDR technology is a complex problem controlled by optics, signal-processing, and visual limits. The solution depends on its goal: physical information or preferred appearance.

Intended Audience:
Anyone interested in using HDR imaging: science, technology of displays, and applications. This includes students, color scientists, imaging researchers, medical imagers, software and hardware engineers, photographers, cinematographers, and production specialists.

John McCann worked in, and managed, Polaroid's Vision Research Laboratory (1961-1996). He studied Retinex theory, color constancy, color from rod/cone interactions at low light levels, image reproduction, appearance with scattered light, cataracts, and HDR imaging. He is a Fellow of IS&T and the Optical Society of America (OSA); a past president of IS&T, and the Artists Foundation, Boston; IS&T/OSA 2002 Edwin Land Medalist and IS&T 2005 Honorary Member, AIC Judd Medalist, 2021.

Alessandro Rizzi is a full professor in the department of computer science at the University of Milano. He is one of the founders of the Italian Color Group, secretary of CIE Division 8, and an IS&T Fellow and past vice president. In 2015 he received the Davies medal from the Royal Photographic Society. He is co-chair of the Color Imaging: Displaying, Processing, Hardcopy, and Applications Conference at the IS&T Electronic Imaging Symposium; topical editor for Journal of Optical Society of America A; topical editor and associate editor of Journal of Electronic Imaging.

Discounts given for multiple classes. See Registration Page for details to register.

For office use only: