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Ken Sakurada

12 accepted papers

2025

Low-Latency Privacy-Aware Robot Behavior guided by Automatically Generated Text Datasets

IROS 2025

Humans typically avert their gaze when faced with situations involving another person’s privacy, and humanoid robots should exhibit similar behaviors. Various approaches exist for privacy recognition, including an image privacy recognition model and a Large Vision-Language Model (LVLM). The former r

Cited by 0SourceScholar
2024

G2fR: Frequency Regularization in Grid-based Feature Encoding Neural Radiance Fields

ECCV 2024poster

"Neural Radiance Field (NeRF) methodologies have garnered considerable interest, particularly with the introduction of grid-based feature encoding (GFE) approaches such as Instant-NGP and TensoRF. Conventional NeRF employs positional encoding (PE) and represents a scene with a Multi-Layer Perceptron…

Cited by 2SourcePDFScholar
2024

Implicit Neural Fusion of RGB and Far-Infrared 3D Imagery for Invisible Scenes

IROS 2024poster

Optical sensors, such as the Far Infrared (FIR) sensor, have demonstrated advantages over traditional imaging. For example, 3D reconstruction in the FIR field captures the heat distribution of a scene that is invisible to RGB, aiding various applications like gas leak detection. However, less textur…

Cited by 2SourceScholar
2024

SDFT: Structural Discrete Fourier Transform for Place Recognition and Traversability Analysis

IROS 2024poster

The ability to associate the current location with previously visited places is an essential aspect of autonomous ground robots. Unstructured environments such as planetary surfaces pose a significant challenge for robots because their terrain is less distinctive. Meanwhile, traversability must be a…

Cited by 1SourceScholar
2023

Hierarchical Neural Memory Network for Low Latency Event Processing

CVPR 2023poster

This paper proposes a low latency neural network architecture for event-based dense prediction tasks. Conventional architectures encode entire scene contents at a fixed rate regardless of their temporal characteristics. Instead, the proposed network encodes contents at a proper temporal scale depend…

2023

INF: Implicit Neural Fusion for LiDAR and Camera

IROS 2023poster

Sensor fusion has become a popular topic in robotics. However, conventional fusion methods encounter many difficulties, such as data representation differences, sensor variations, and extrinsic calibration. For example, the calibration methods used for LiDAR-camera fusion often require manual operat…

Cited by 10SourceScholar
2022

Fast Structural Representation and Structure-aware Loop Closing for Visual SLAM

IROS 2022poster

Perceptual Aliasing is one of the main problems in simultaneous localization and mapping (SLAM). Wrong associations between different places may lead to failure of the whole map. Research on structure information is rarely investigated among existing solutions to this problem. In cases of visual SLA…

Cited by 0SourceScholar
2021

Heterogeneous Grid Convolution for Adaptive, Efficient, and Controllable Computation

CVPR 2021poster

This paper proposes a novel heterogeneous grid convolution that builds a graph-based image representation by exploiting heterogeneity in the image content, enabling adaptive, efficient, and controllable computations in a convolutional architecture. More concretely, the approach builds a data-adaptiv…

Cited by 5PDFScholar
2020

Self-supervised Simultaneous Alignment and Change Detection

IROS 2020poster

This study proposes a self-supervised method for detecting scene changes from an image pair. For mobile cameras such as drive recorders, to alleviate the camera viewpoints' difference, image alignment and change detection must be optimized simultaneously because they depend on each other. Moreover,…

Cited by 11SourceScholar