Fully automatic hair modeling from a single image: Given a single portrait image as input, our method computes a hair
segmentation and a hair growth direction map, which are used to obtain a matching hair shape from a large set of 3D model exemplars. A
complete and high-quality 3D hair model is then generated based on the matching shape and the direction map. The whole process is fully
automatic, with no user interaction or parameter tuning.
We introduce AutoHair, the first fully automatic method for 3D
hair modeling from a single portrait image, with no user interaction
or parameter tuning. Our method efficiently generates complete
and high-quality hair geometries, which are comparable to those
generated by the state-of-the-art methods, where user interaction is
required. The core components of our method are: a novel hierarchical
deep neural network for automatic hair segmentation and hair
growth direction estimation, trained over an annotated hair image
database; and an efficient and automatic data-driven hair matching
and modeling algorithm, based on a large set of 3D hair exemplars.
We demonstrate the efficacy and robustness of our method on Internet
photos, resulting in a database of around 50K 3D hair models
and a corresponding hairstyle space that covers a wide variety of
real-world hairstyles. We also show novel applications enabled by
our method, including 3D hairstyle space navigation and hair-aware
Data: The 3DHW database is available for research purpose upon request (email: kunzhou at acm dot org).
The authors would like to thank Liwen Hu and Hao Li for helping
with the comparisons, the artists for making their hair models
available on The Sims Resource and Newsea platform, the Flickr
users for letting us use their work under the Creative Commons License,
Yiying Tong for proofreading the paper, and the SIGGRAPH
reviewers for their helpful comments. This work is partially supported
by the NSF of China (No. 61272305, No. 61402402 and
No. 61572429) and the National Program for Special Support of
Eminent Professionals of China.