no code implementations • 4 Mar 2025 • Ru Ito, Supatta Viriyavisuthisakul, Kazuhiko Kawamoto, Hiroshi Kera
Fine-tuning pre-trained SR models on our generated datasets improves noise removal and blur reduction, enhancing performance on real-world LR images.
no code implementations • 25 Dec 2024 • Shingo Ayabe, Takuto Otomo, Hiroshi Kera, Kazuhiko Kawamoto
Offline reinforcement learning, which learns solely from datasets without environmental interaction, has gained attention.
1 code implementation • 24 Dec 2024 • Takuma Fukuda, Hiroshi Kera, Kazuhiko Kawamoto
We propose Adapter Merging with Centroid Prototype Mapping (ACMap), an exemplar-free framework for class-incremental learning (CIL) that addresses both catastrophic forgetting and scalability.
no code implementations • 1 Dec 2024 • Toshinori Yamauchi, Hiroshi Kera, Kazuhiko Kawamoto
To address this, we proposed a method for object detectors that considers the collective contribution of multiple pixels.
no code implementations • 20 Aug 2024 • Tomoyasu Nanaumi, Kazuhiko Kawamoto, Hiroshi Kera
To make an employee roster, photo album, or training dataset of generative models, one needs to collect high-quality images while dismissing low-quality ones.
no code implementations • 28 Jun 2024 • Ayumu Ueyama, Kazuhiko Kawamoto, Hiroshi Kera
Weather forecasting is essential for various human activities.
no code implementations • 13 Mar 2024 • Yusuke Marumo, Kazuhiko Kawamoto, Satomi Tanaka, Shigenobu Hirano, Hiroshi Kera
Not identical but similar objects are ubiquitous in our world, ranging from four-legged animals such as dogs and cats to cars of different models and flowers of various colors.
1 code implementation • CVPR 2024 • Kosuke Sumiyasu, Kazuhiko Kawamoto, Hiroshi Kera
To better understand the behavior of image classifiers, it is useful to visualize the contribution of individual pixels to the model prediction.
1 code implementation • 29 May 2023 • Nariki Tanaka, Hiroshi Kera, Kazuhiko Kawamoto
Using Fourier analysis, we explore the robustness and vulnerability of graph convolutional neural networks (GCNs) for skeleton-based action recognition.
no code implementations • 15 May 2023 • Chun Yang Tan, Kazuhiko Kawamoto, Hiroshi Kera
In recent years, there has been growing concern over the vulnerability of convolutional neural networks (CNNs) to image perturbations.
no code implementations • 21 Jan 2023 • Nan Wu, Hiroshi Kera, Kazuhiko Kawamoto
Furthermore, the proposed model can also be combined with other models to improve its accuracy.
1 code implementation • 7 Nov 2022 • Katsuya Kosukegawa, Yasukuni Mori, Hiroki Suyari, Kazuhiko Kawamoto
In this study, a method is proposed to forecast one type of track geometry irregularity, vertical alignment, by incorporating spatial and exogenous factor calculations.
no code implementations • 7 Oct 2022 • Kosuke Sumiyasu, Kazuhiko Kawamoto, Hiroshi Kera
This paper analyzes various types of image misclassification from a game-theoretic view.
no code implementations • 20 May 2022 • Takaaki Azakami, Hiroshi Kera, Kazuhiko Kawamoto
We propose an evolutionary computation method for an adversarial attack on the length and thickness of parts of legged robots by deep reinforcement learning.
no code implementations • 20 May 2022 • Takuto Otomo, Hiroshi Kera, Kazuhiko Kawamoto
In experiments with the quadruped robot Ant-v2 and the bipedal robot Humanoid-v2, in OpenAI Gym environments, we find that differential evolution can efficiently find the strongest torque perturbations among the three methods.
no code implementations • 14 Mar 2022 • Chun Yang Tan, Kazuhiko Kawamoto, Hiroshi Kera
Extensive experiments revealed that the images generated by combining the amplitude spectrum of adversarial images and the phase spectrum of clean images accommodates moderate and general perturbations, and training with these images equips a CNN classifier with more general robustness, performing well under both common corruptions and adversarial perturbations.
no code implementations • 19 Nov 2021 • Wataru Okamoto, Hiroshi Kera, Kazuhiko Kawamoto
This study is aimed at addressing the problem of fault tolerance of quadruped robots to actuator failure, which is critical for robots operating in remote or extreme environments.
no code implementations • 13 Sep 2021 • Nariki Tanaka, Hiroshi Kera, Kazuhiko Kawamoto
Specifically, we restrict the perturbations to the lengths of the skeleton's bones, which allows an adversary to manipulate only approximately 30 effective dimensions.
no code implementations • 13 Sep 2021 • Shun Kimura, Kazuhiko Kawamoto
To realize this objective, we base our model on the motion and content decomposed GAN and conditional GAN for image generation.
no code implementations • 13 Sep 2021 • Kazuma Fujii, Hiroshi Kera, Kazuhiko Kawamoto
In addition, we propose a method that combines adversarial training and feature alignment to ensure the improved alignment of robust features with the target domain.