loading
Papers

Research.Publish.Connect.

Paper

Paper Unlock

Author: Martin Kraus

Affiliation: Aalborg University, Denmark

ISBN: 978-989-8425-45-4

Keyword(s): Depth of field, Blur, Glow, Visual effect, Real-time rendering, Image processing, GPU, Pyramid algorithm.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Image-Based Rendering ; Real-Time Rendering ; Rendering ; Rendering Algorithms ; Shadows, Translucency and Visibility

Abstract: While depth of field is an important cinematographic means, its use in real-time computer graphics is still limited by the computational costs that are necessary to achieve a sufficient image quality. Specifically, color bleeding artifacts between objects at different depths are most effectively avoided by a decomposition into subimages and the independent blurring of each sub-image. This decomposition, however, can result in rendering artifacts at silhouettes of objects. While various algorithms have been suggested to eliminate these artifacts, we propose a new blur filter that increases the opacity of all pixels to avoid artifacts at the cost of physically less accurate but still plausible rendering results. The proposed filter is named “opaque image blur” and is based on a glow filter that is applied to the alpha channel. We present a highly efficient GPU-based pyramid algorithm that implements this filter for depth-of-field rendering.

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 35.175.191.168

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
Kraus, M. (2011). USING OPAQUE IMAGE BLUR FOR REAL-TIME DEPTH-OF-FIELD RENDERING.In Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011) ISBN 978-989-8425-45-4, pages 153-159. DOI: 10.5220/0003310801530159

@conference{grapp11,
author={Martin Kraus.},
title={USING OPAQUE IMAGE BLUR FOR REAL-TIME DEPTH-OF-FIELD RENDERING},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011)},
year={2011},
pages={153-159},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003310801530159},
isbn={978-989-8425-45-4},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2011)
TI - USING OPAQUE IMAGE BLUR FOR REAL-TIME DEPTH-OF-FIELD RENDERING
SN - 978-989-8425-45-4
AU - Kraus, M.
PY - 2011
SP - 153
EP - 159
DO - 10.5220/0003310801530159

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.