Robust Content-Dependent Photometric Projector Compensation
Abstract
We wish to compensate for irregularities in the output of digital projectors that occur when they are used in non-ideal situations, such as those with varying surface reflectance and ambient light. We transform the image to be displayed into a compensation image that will produce the desired appearance. In contrast to previous methods, the transformation is based on both a radiometric model of the system and the content of the image. We present a five-stage framework for performing content-dependent photometric compensation, and the details of a specific implementation. The original image is converted to a perceptually-uniform space, the desired chrominance is fitted to the gamut of the projector, a luminance range is calculated within which the fitted chrominance values can be produced, the original luminance is fitted to that range, and finally the fitted values are converted to a compensation image. Our method balances strict compensation against dynamic range in the final output, so we can produce a good result even when removal of all visible spatial variation is not possible.
Cite
Text
Ashdown et al. "Robust Content-Dependent Photometric Projector Compensation." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2006. doi:10.1109/CVPRW.2006.172Markdown
[Ashdown et al. "Robust Content-Dependent Photometric Projector Compensation." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2006.](https://mlanthology.org/cvprw/2006/ashdown2006cvprw-robust/) doi:10.1109/CVPRW.2006.172BibTeX
@inproceedings{ashdown2006cvprw-robust,
title = {{Robust Content-Dependent Photometric Projector Compensation}},
author = {Ashdown, Mark and Okabe, Takahiro and Sato, Imari and Sato, Yoichi},
booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops},
year = {2006},
pages = {6},
doi = {10.1109/CVPRW.2006.172},
url = {https://mlanthology.org/cvprw/2006/ashdown2006cvprw-robust/}
}