Mirror Mirror: Crowdsourcing Better Portraits

People

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Abstract

We describe a method for providing feedback on portrait expressions, and for selecting the most attractive expressions from large video/photo collections. We capture a video of a subject’s face while they are engaged in a task designed to elicit a range of positive emotions. We then use crowdsourcing to score the captured expressions for their attractiveness. We use these scores to train a model that can automatically predict attractiveness of different expressions of a given person. We also train a cross-subject model that evaluates portrait attractiveness of novel subjects and show how it can be used to automatically mine attractive photos from personal photo collections. Furthermore, we show how, with a little bit ($5-worth) of extra crowdsourcing, we can substantially improve the cross-subject model by “fine-tuning” it to a new individual using active learning. Finally, we demonstrate a training app that helps people learn how to mimic their best expressions.


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Paper

SIGGRAPH Asia paper. (pdf, 48MB)

Reduced-size SIGGRAPH Asia paper. (pdf, 2.6MB)

Presentation

(pptx + videos), 136MB

Citation

Jun-Yan Zhu, Aseem Agarwala, Alexei A. Efros, Eli Shechtman and Jue Wang. Mirror Mirror: Crowdsourcing Better Portraits. ACM Transactions on Graphics (SIGGRAPH Asia 2014). December 2014, vol. 33, No. 6.
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Additional Materials

Software

Data

Data (898MB) include the original videos, the selected representative frames, attractiveness/seriousness scores estimated from crowdsourced annotation, and extracted HOG features. We also provided MATLAB code to visualize scores and train cross-subject svm models.

Acknowledgement

We thank Peter O’Donovan for code, Andrew Gallagher for public data, and our subjects for volunteering to be recorded. Figure 1 uses icons by Parmelyn, Dan Hetteix, and Murali Krishna from The Noun Project. The YouTube frames (Figure 16) are courtesy Joshua Michael Shelton.

Funding

This research is supported in part by: