Learning to Trace: Expressive Line Drawing Generation from Photographs

In this paper, we present a new computational method for automatically tracing high‐resolution photographs to create expressive line drawings. We define expressive lines as those that convey important edges, shape contours, and large‐scale texture lines that are necessary to accurately depict the ov...

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Vydáno v:Computer graphics forum Ročník 38; číslo 7; s. 69 - 80
Hlavní autoři: Inoue, N., Ito, D., Xu, N., Yang, J., Price, B., Yamasaki, T.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Oxford Blackwell Publishing Ltd 01.10.2019
Témata:
Algorithms
Applied computing → Fine arts
Artificial neural networks
CCS Concepts
Computing methodologies → Image manipulation
Engineering drawings
ISSN:0167-7055, 1467-8659
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Popis
Shrnutí:In this paper, we present a new computational method for automatically tracing high‐resolution photographs to create expressive line drawings. We define expressive lines as those that convey important edges, shape contours, and large‐scale texture lines that are necessary to accurately depict the overall structure of objects (similar to those found in technical drawings) while still being sparse and artistically pleasing. Given a photograph, our algorithm extracts expressive edges and creates a clean line drawing using a convolutional neural network (CNN). We employ an end‐to‐end trainable fully‐convolutional CNN to learn the model in a data‐driven manner. The model consists of two networks to cope with two sub‐tasks; extracting coarse lines and refining them to be more clean and expressive. To build a model that is optimal for each domain, we construct two new datasets for face/body and manga background. The experimental results qualitatively and quantitatively demonstrate the effectiveness of our model. We further illustrate two practical applications.
Bibliografie:ObjectType-Article-1
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.13817