Search Results for author: Brian Kenji Iwana

Found 30 papers, 17 papers with code

What Text Design Characterizes Book Genres?

no code implementations26 Feb 2024 Daichi Haraguchi, Brian Kenji Iwana, Seiichi Uchida

In the experiment, we found that semantic information is sufficient to determine the genre; however, text design is helpful in adding more discriminative features for book genres.

Deep Attentive Time Warping

1 code implementation13 Sep 2023 Shinnosuke Matsuo, Xiaomeng Wu, Gantugs Atarsaikhan, Akisato Kimura, Kunio Kashino, Brian Kenji Iwana, Seiichi Uchida

Unlike other learnable models using DTW for warping, our model predicts all local correspondences between two time series and is trained based on metric learning, which enables it to learn the optimal data-dependent warping for the target task.

Dynamic Time Warping Metric Learning +2

Few shot font generation via transferring similarity guided global style and quantization local style

1 code implementation ICCV 2023 Wei Pan, Anna Zhu, Xinyu Zhou, Brian Kenji Iwana, Shilin Li

To better capture the local styles, a cross-attention-based style transfer module is adopted to transfer the styles of reference glyphs to the components, where the components are self-learned discrete latent codes through vector quantization without manual definition.

Disentanglement Font Generation +2

FETNet: Feature Erasing and Transferring Network for Scene Text Removal

1 code implementation16 Jun 2023 Guangtao Lyu, Kun Liu, Anna Zhu, Seiichi Uchida, Brian Kenji Iwana

To tackle these problems, we propose a novel Feature Erasing and Transferring (FET) mechanism to reconfigure the encoded features for STR in this paper.

Contour Completion by Transformers and Its Application to Vector Font Data

no code implementations27 Apr 2023 Yusuke Nagata, Brian Kenji Iwana, Seiichi Uchida

We propose a Transformer-based method to solve this problem and show the results of the typeface contour completion.

Vision Conformer: Incorporating Convolutions into Vision Transformer Layers

1 code implementation27 Apr 2023 Brian Kenji Iwana, Akihiro Kusuda

Transformers are popular neural network models that use layers of self-attention and fully-connected nodes with embedded tokens.

Inductive Bias Language Modelling

On Mini-Batch Training with Varying Length Time Series

1 code implementation13 Dec 2022 Brian Kenji Iwana

We propose a novel method of normalizing the lengths of the time series in a dataset by exploiting the dynamic matching ability of Dynamic Time Warping (DTW).

Dynamic Time Warping Time Series +1

Dynamic Data Augmentation with Gating Networks for Time Series Recognition

1 code implementation5 Nov 2021 Daisuke Oba, Shinnosuke Matsuo, Brian Kenji Iwana

We propose a neural network that dynamically selects the best combination of data augmentation methods using a mutually beneficial gating network and a feature consistency loss.

Data Augmentation Time Series +1

Using Robust Regression to Find Font Usage Trends

no code implementations29 Jun 2021 Kaigen Tsuji, Seiichi Uchida, Brian Kenji Iwana

In this paper, we attempt to specifically find the trends in font usage using robust regression on a large collection of text images.

regression

Towards Book Cover Design via Layout Graphs

1 code implementation24 May 2021 Wensheng Zhang, Yan Zheng, Taiga Miyazono, Seiichi Uchida, Brian Kenji Iwana

Book covers are intentionally designed and provide an introduction to a book.

Font Style that Fits an Image -- Font Generation Based on Image Context

1 code implementation19 May 2021 Taiga Miyazono, Brian Kenji Iwana, Daichi Haraguchi, Seiichi Uchida

We propose an end-to-end neural network that inputs the book cover, a target location mask, and a desired book title and outputs stylized text suitable for the cover.

Font Generation

Self-Augmented Multi-Modal Feature Embedding

no code implementations8 Mar 2021 Shinnosuke Matsuo, Seiichi Uchida, Brian Kenji Iwana

To exploit this fact, we propose the use of self-augmentation and combine it with multi-modal feature embedding.

What is the Reward for Handwriting? -- Handwriting Generation by Imitation Learning

no code implementations23 Sep 2020 Keisuke Kanda, Brian Kenji Iwana, Seiichi Uchida

In this study, we use a reinforcement learning (RL) framework to realize handwriting generation with the careful future planning ability.

Handwriting generation Imitation Learning +1

An Empirical Survey of Data Augmentation for Time Series Classification with Neural Networks

1 code implementation31 Jul 2020 Brian Kenji Iwana, Seiichi Uchida

In this paper, we survey data augmentation techniques for time series and their application to time series classification with neural networks.

Data Augmentation General Classification +3

Negative Pseudo Labeling using Class Proportion for Semantic Segmentation in Pathology

no code implementations ECCV 2020 Hiroki Tokunaga, Brian Kenji Iwana, Yuki Teramoto, Akihiko Yoshizawa, Ryoma Bise

We propose a weakly-supervised cell tracking method that can train a convolutional neural network (CNN) by using only the annotation of "cell detection" (i. e., the coordinates of cell positions) without association information, in which cell positions can be easily obtained by nuclear staining.

Cell Detection Cell Tracking +1

On the Ability of a CNN to Realize Image-to-Image Language Conversion

no code implementations22 Jun 2020 Kohei Baba, Seiichi Uchida, Brian Kenji Iwana

The purpose of this paper is to reveal the ability that Convolutional Neural Networks (CNN) have on the novel task of image-to-image language conversion.

Effect of Text Color on Word Embeddings

no code implementations18 Apr 2020 Masaya Ikoma, Brian Kenji Iwana, Seiichi Uchida

In natural scenes and documents, we can find the correlation between a text and its color.

Word Embeddings

Character-independent font identification

1 code implementation24 Jan 2020 Daichi Haraguchi, Shota Harada, Brian Kenji Iwana, Yuto Shinahara, Seiichi Uchida

Moreover, we analyzed the relationship between character classes and font identification accuracy.

Font Recognition

Neural Style Difference Transfer and Its Application to Font Generation

no code implementations21 Jan 2020 Gantugs Atarsaikhan, Brian Kenji Iwana, Seiichi Uchida

In our proposed method, the difference of font styles between two different fonts is found and transferred to another font using neural style transfer.

Font Generation Style Transfer

Explaining Convolutional Neural Networks using Softmax Gradient Layer-wise Relevance Propagation

1 code implementation6 Aug 2019 Brian Kenji Iwana, Ryohei Kuroki, Seiichi Uchida

Through qualitative and quantitative analysis, we demonstrate that SGLRP can successfully localize and attribute the regions on input images which contribute to a target object's classification.

Attribute Classification +3

Modality Conversion of Handwritten Patterns by Cross Variational Autoencoders

no code implementations14 Jun 2019 Taichi Sumi, Brian Kenji Iwana, Hideaki Hayashi, Seiichi Uchida

This research attempts to construct a network that can convert online and offline handwritten characters to each other.

ProbAct: A Probabilistic Activation Function for Deep Neural Networks

1 code implementation26 May 2019 Kumar Shridhar, Joonho Lee, Hideaki Hayashi, Purvanshi Mehta, Brian Kenji Iwana, Seokjun Kang, Seiichi Uchida, Sheraz Ahmed, Andreas Dengel

We show that ProbAct increases the classification accuracy by +2-3% compared to ReLU or other conventional activation functions on both original datasets and when datasets are reduced to 50% and 25% of the original size.

Image Classification

How do Convolutional Neural Networks Learn Design?

no code implementations25 Aug 2018 Shailza Jolly, Brian Kenji Iwana, Ryohei Kuroki, Seiichi Uchida

We use LRP to explain the pixel-wise contributions of book cover design and highlight the design elements contributing towards particular genres.

Image Classification Text Detection

Constrained Neural Style Transfer for Decorated Logo Generation

1 code implementation2 Mar 2018 Gantugs Atarsaikhan, Brian Kenji Iwana, Seiichi Uchida

We propose using neural style transfer with clip art and text for the creation of new and genuine logos.

Style Transfer

Dynamic Weight Alignment for Temporal Convolutional Neural Networks

no code implementations18 Dec 2017 Brian Kenji Iwana, Seiichi Uchida

In this paper, we propose a method of improving temporal Convolutional Neural Networks (CNN) by determining the optimal alignment of weights and inputs using dynamic programming.

Dynamic Time Warping Time Series Analysis

Globally Optimal Object Tracking with Fully Convolutional Networks

no code implementations25 Dec 2016 Jinho Lee, Brian Kenji Iwana, Shouta Ide, Seiichi Uchida

Thus, we propose a new and robust tracking method using a Fully Convolutional Network (FCN) to obtain an object probability map and Dynamic Programming (DP) to seek the globally optimal path through all frames of video.

Object Object Tracking

Judging a Book By its Cover

4 code implementations28 Oct 2016 Brian Kenji Iwana, Syed Tahseen Raza Rizvi, Sheraz Ahmed, Andreas Dengel, Seiichi Uchida

Book covers communicate information to potential readers, but can that same information be learned by computers?

Genre classification

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