Interactive and Time-Based HDR

I have been thinking a lot about pixels lately - most likely due to having a class with the given root word in it... twice. So, we have all of this information nicely packed within a frame - now what to do with it?

What I find interesting is how an image can be mined for data that is unseen upon first glance - and one of my favorite ideas in regard to this way of thinking is the creation and use of HDR images. High-Dynamic Range images are useful for an assortment of reasons - in the field of computer graphics, they are many times used as a light source. Paul Debevec is known as one of the groundbreaking researchers on the topic - and what initially began as technique for expensive high-end rendering has now been implemented in real-time in the past couple of years. Check out his site to see some of the amazing things HDR images can be used for.


Fig 1.1: Example of a light-probe HDR image
Credit: http://www.debevec.org


So, what else can been done with HDR - and how can it be used to create something interesting? For me, I want to explore moving away from leaving HDR lighting as a static image - and instead have it evolve over time while lighting a static scene. A few ideas are: time-lapse HDR lighting, real-time interaction with the HDR image itself, tying HDR colorization with weather forecasting, integration with existing data sets, and so forth.