Supplementary Material Page for Our EUROGRAPHICS Paper

Freehand HDR Imaging of Moving Scenes
with Simultaneous Resolution Enhancement

Additional Results for Joint SR-HDR Reconstruction

This page provides further results concerning our proposed joint super-resolution and HDR (SR-HDR) approach. To demonstrate the possibilities of our approach, we applied it to several real world exposure series that were taken handheld using a standard DSLR camera (Nikon D90). To illustrate the benefits of the resolution enhancement, we additionally show pure HDR reconstructions computed after aligning the images with our proposed optic flow-based technique. Please note that the black border for the SR-HDR and the HDR results are different. This is explained by the fact that in the SR-HDR context, the displacements are computed in the opposite direction compared to HDR alignment, as noted in the paper.

Note that all results shown here were obtained using default values for all but a single parameter. These values can be found in the paper.
The only parameter we adapted to the different scenes is the smoothness weight λ. The values that we chose to obtain visually appealing results are given in the captions of our results.

We offer zip archives for download, which contain all images in JPEG format so that all important information (such as exposure times) are available from the EXIF headers.
To visualise the SR-HDR images, we applied the tone mapping operator of Fattal et al. as implemented in the pfstools package. In addition, we offer to download the SR-HDR images in the RGBE format proposed in G. Ward: Real Pixels. Graphics Gems II, Academic Press, 1992. A C implementation of a read/write library for RGBE data can be found here.

Flower

Exposure series Flower (268×178 pixels, exposures from 1/200 to 1/8 seconds)
Download the exposure series as zip archive.

Tone mapped SR-HDR reconstruction (λ = 0.6). Download SR-HDR image in RGBE format.

Tone mapped HDR reconstruction without resolution enhancement.
Download HDR image in RGBE format.

Street

Exposure series Street (268×178 pixels, exposure times between 1/2500 and 1/20 seconds) Download the exposure series as zip archive.

Tone mapped SR-HDR reconstruction (λ = 0.4). Download SR-HDR image in RGBE format.

Tone mapped HDR reconstruction without resolution enhancement.
Download HDR image in RGBE format.

Books

Exposure series Books (257×171 pixels, exposure times between 1/2500 and 1/4 seconds) Download the exposure series as zip archive.

Tone mapped SR-HDR reconstruction (λ = 0.4). Download SR-HDR image in RGBE format.

Tone mapped HDR reconstruction without resolution enhancement.
Download HDR image in RGBE format.

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