121 research outputs found
StrokeGAN: Reducing Mode Collapse in Chinese Font Generation via Stroke Encoding
The generation of stylish Chinese fonts is an important problem involved in
many applications. Most of existing generation methods are based on the deep
generative models, particularly, the generative adversarial networks (GAN)
based models. However, these deep generative models may suffer from the mode
collapse issue, which significantly degrades the diversity and quality of
generated results. In this paper, we introduce a one-bit stroke encoding to
capture the key mode information of Chinese characters and then incorporate it
into CycleGAN, a popular deep generative model for Chinese font generation. As
a result we propose an efficient method called StrokeGAN, mainly motivated by
the observation that the stroke encoding contains amount of mode information of
Chinese characters. In order to reconstruct the one-bit stroke encoding of the
associated generated characters, we introduce a stroke-encoding reconstruction
loss imposed on the discriminator. Equipped with such one-bit stroke encoding
and stroke-encoding reconstruction loss, the mode collapse issue of CycleGAN
can be significantly alleviated, with an improved preservation of strokes and
diversity of generated characters. The effectiveness of StrokeGAN is
demonstrated by a series of generation tasks over nine datasets with different
fonts. The numerical results demonstrate that StrokeGAN generally outperforms
the state-of-the-art methods in terms of content and recognition accuracies, as
well as certain stroke error, and also generates more realistic characters.Comment: 10 pages, our codes and data are available at:
https://github.com/JinshanZeng/StrokeGA
Generating Handwritten Chinese Characters using CycleGAN
Handwriting of Chinese has long been an important skill in East Asia.
However, automatic generation of handwritten Chinese characters poses a great
challenge due to the large number of characters. Various machine learning
techniques have been used to recognize Chinese characters, but few works have
studied the handwritten Chinese character generation problem, especially with
unpaired training data. In this work, we formulate the Chinese handwritten
character generation as a problem that learns a mapping from an existing
printed font to a personalized handwritten style. We further propose DenseNet
CycleGAN to generate Chinese handwritten characters. Our method is applied not
only to commonly used Chinese characters but also to calligraphy work with
aesthetic values. Furthermore, we propose content accuracy and style
discrepancy as the evaluation metrics to assess the quality of the handwritten
characters generated. We then use our proposed metrics to evaluate the
generated characters from CASIA dataset as well as our newly introduced Lanting
calligraphy dataset.Comment: Accepted at WACV 201
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