Hennessey, JW;
Li, W;
Russell, B;
Shechtman, E;
Mitra, NJ;
(2017)
Transferring Image-based Edits for Multi-Channel Compositing.
In:
ACM Transactions on Graphics (TOG).
Association for Computing Machinery (ACM): New York, NY, USA.
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Abstract
A common way to generate high-quality product images is to start with a physically-based render of a 3D scene, apply image-based edits on individual render channels, and then composite the edited channels together (in some cases, on top of a background photograph). This workflow requires users to manually select the right render channels, prescribe channel-specific masks, and set appropriate edit parameters. Unfortunately, such edits cannot be easily reused for global variations of the original scene, such as a rigid-body transformation of the 3D objects or a modified viewpoint, which discourages iterative refinement of both global scene changes and image-based edits. We propose a method to automatically transfer such user edits across variations of object geometry, illumination, and viewpoint. This transfer problem is challenging since many edits may be visually plausible but non-physical, with a successful transfer dependent on an unknown set of scene attributes that may include both photometric and non-photometric features. To address this challenge, we present a transfer algorithm that extends the image analogies formulation to include an augmented set of photometric and non-photometric guidance channels and, more importantly, adaptively estimate weights for the various candidate channels in a way that matches the characteristics of each individual edit. We demonstrate our algorithm on a variety of complex edit-transfer scenarios for creating high-quality product images.
| Type: | Proceedings paper |
|---|---|
| Title: | Transferring Image-based Edits for Multi-Channel Compositing |
| Event: | 10th ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive Techniques in Asia |
| Location: | Bangkok, THAILAND |
| Dates: | 27 November 2017 - 30 November 2017 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1145/3130800.3130842 |
| Publisher version: | https://doi.org/10.1145/3130800.3130842 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10069697 |
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