30 citations · 166 across the 13 of their papers we have counts for
13 papers
An Integrated FPGA Accelerator for Deep Learning-based 2D/3D Path Planning
Keisuke Sugiura, Hiroki Matsutani
Path planning is a crucial component for realizing the autonomy of mobile robots. However, due to limited computational resources on mobile robots, it remains challenging to deploy…
Formation of moons and equatorial ridge around top-shaped asteroids after surface landslide
Ryuki Hyodo, Keisuke Sugiura
Top-shaped asteroids have been observed among near-Earth asteroids. About half of them are reported to have moons (on the order of wt.\% of the top-shaped primary) and many…
An Efficient Accelerator for Deep Learning-based Point Cloud Registration on FPGAs
Keisuke Sugiura, Hiroki Matsutani
Point cloud registration is the basis for many robotic applications such as odometry and Simultaneous Localization And Mapping (SLAM), which are increasingly important for autonomo…
Giant Impact onto a Vesta-Like Asteroid and Formation of Mesosiderites through Mixing of Metallic Core and Surface Crust
Keisuke Sugiura, Makiko K. Haba, Hidenori Genda
Mesosiderites are a type of stony-iron meteorites composed of a mixture of silicates and Fe-Ni metals. The mesosiderite silicates and metals are considered to have originated from…
A Low-Cost Neural ODE with Depthwise Separable Convolution for Edge Domain Adaptation on FPGAs
Hiroki Kawakami, Hirohisa Watanabe, Keisuke Sugiura +1
High-performance deep neural network (DNN)-based systems are in high demand in edge environments. Due to its high computational complexity, it is challenging to deploy DNNs on edge…
SPH Simulations for Shape Deformation of Rubble-Pile Asteroids Through Spinup: The Challenge for Making Top-Shaped Asteroids Ryugu and Bennu
Keisuke Sugiura, Hiroshi Kobayashi, Sei-ichiro Watanabe +3
Asteroid Ryugu and asteroid Bennu, which were recently visited by spacecraft Hayabusa2 and OSIRIS-REx, respectively, are spinning top-shaped rubble piles. Other axisymmetric top-sh…
A Universal LiDAR SLAM Accelerator System on Low-cost FPGA
Keisuke Sugiura, Hiroki Matsutani
LiDAR (Light Detection and Ranging) SLAM (Simultaneous Localization and Mapping) serves as a basis for indoor cleaning, navigation, and many other useful applications in both indus…
An FPGA Acceleration and Optimization Techniques for 2D LiDAR SLAM Algorithm
Keisuke Sugiura, Hiroki Matsutani
An efficient hardware implementation for Simultaneous Localization and Mapping (SLAM) methods is of necessity for mobile autonomous robots with limited computational resources. In…
High-Resolution Simulations of Catastrophic Disruptions: Resultant Shape Distributions
Keisuke Sugiura, Hiroshi Kobayashi, Shu-ichiro Inutsuka
The members of asteroid families have various shapes. We investigate the origin of their shapes by high-resolution impact simulations for catastrophic disruptions using a Smoothed…
Collisional Elongation: Possible Origin of Extremely Elongated Shape of 1I/`Oumuamua
Keisuke Sugiura, Hiroshi Kobayashi, Shu-ichiro Inutsuka
Light curve observations of a recently discovered interstellar object 1I/`Oumuamua suggest that this object has an extremely elongated shape with the axis ratio 0.3 or smaller. Pla…
Toward Understanding the Origin of Asteroid Geometries: Variety in Shapes Produced by Equal-Mass Impacts
Keisuke Sugiura, Hiroshi Kobayashi, Shu-ichiro Inutsuka
More than a half of asteroids in the main belt have irregular shapes with the ratios of the minor to major axis lengths less than 0.6. One of the mechanisms to create such shapes i…
An Extension of Godunov SPH II: Application to Elastic Dynamics
Keisuke Sugiura, Shu-ichiro Inutsuka
Godunov Smoothed Particle Hydrodynamics (Godunov SPH) method is a computational fluid dynamics method that utilizes a Riemann solver and achieves the second-order accuracy in space…
An Extension of Godunov SPH: Application to Negative Pressure Media
Keisuke Sugiura, Shu-ichiro Inutsuka
The modification of Smoothed Particle Hydrodynamics (SPH) method with Riemann Solver is called Godunov SPH. We further extend the Godunov SPH to the description of a medium with ne…