SIGGRAPH 2012 Computational Plenoptic Imaging Course - 2 High Dynamic Range Imaging

1. Wolfgang Heidrich

2. High Dynamic Range Imaging
SIMULTANEOUSLY VISIBLE DYNAMIC RANGE
CONVENTIONAL CAMERAS
Wolfgang Heidrich

3. What is HDR?
http://en.wikipedia.org/wiki/High-dynamic-range_imaging
Wolfgang Heidrich

4. Commercial HDR Cameras
Grass Valley Viper
Spheron
Panavision Genesis
Wolfgang Heidrich

5. Commercial HDR Cameras
no with no with
pixim pixim pixim pixim Wolfgang Heidrich

6. HDR with Standard Sensors
HDRI with Standard Sensors
 Trading for Temporal Resolution
 Trading for Spatial Resolution
 Multiple Sensors
 Generalized Encodings
Wolfgang Heidrich

7. Multi-Exposure Imaging:
Trading Temporal Resolution
Exposure Sequence
Radiance Map Tonemapped Image
[Debevec & Malik 97] Wolfgang Heidrich

8. Trading Spatial Resolution:
Assorted Pixels
ND filter arrays
Conventional Camera SVE Camera SVE Reconstruction
[Nayar and Mitsunaga 00,Narasimhan and Nayar 05] Wolfgang Heidrich

9. Fourier-based Reconstruction
Low dynamic range Low dynamic range
Our reconstruction Our reconstruction
Ground truth Ground truth [Wetzstein et al. 10]
Wolfgang Heidrich

10. Multiple Sensors
Exposure Sequence &Tonemapped Image
[McGuire et al. 07] Wolfgang Heidrich

11. General Encodings
[Rouf et al. 11]
Wolfgang Heidrich

12. More on HDR Imaging
• HDR image / video encoding
• capture, display, tone reproduction
• visible difference predictors
• image based lighting, etc.
Wolfgang Heidrich

13. Wolfgang Heidrich