Toru Kouyama

37 papers B 1C 20Misc 1Journal 14Unranked 1
YearRankTypeTitle / Venue / Authors
2026 J jnl
A Tutorial on ALOS2 SAR Utilization: Dataset Preparation, Self-Supervised Pretraining, and Semantic Segmentation.
CoRR
Nevrez Imamoglu, Ali Caglayan, Toru Kouyama
2026 J jnl
Enhanced LULC Segmentation via Lightweight Model Refinements on ALOS-2 SAR Data.
CoRR
Ali Caglayan, Nevrez Imamoglu, Toru Kouyama
2025 J jnl
An Investigation of Systematic Bias in ALOS-2 Multilooked Interferograms.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Ryu Sugimoto, Yu Morishita, Masanobu Shimada, Ryo Natsuaki, Chiaki Tsutsumi, Ryosuke Nakamura, Toru Kouyama
2025 J jnl
Automated vicarious radiometric validation of spaceborne thermal infrared sensors at non-dedicated validation sites using deep learning-based cloud filtering.
Int. J. Appl. Earth Obs. Geoinformation
Soushi Kato, Toru Kouyama
2025 J jnl
SAR-W-MixMAE: SAR Foundation Model Training Using Backscatter Power Weighting.
CoRR
Ali Caglayan, Nevrez Imamoglu, Toru Kouyama
2024 C conf
A Recurrent Deep Learning-Based Monthly Deforestation Prediction Model in Eight Areas for Brazilian Amazon: A Pilot Study.
IGARSS
Suguru Kanoga, Takeshi Nomaguchi, Yusuke Kobayashi, Takayuki Hoshino, Chiaki Tsutsumi, Ryu Sugimoto, Toru Kouyama, Ryosuke Nakamura
2024 C conf
Advanced SAR-To-Optical Image Translation Techniques using Jaxa's High-Resolution Land-Use and Land-Cover Map.
IGARSS
Xuanchao Fu, Toru Kouyama, Suomi Seki, Ryosuke Nakamura, Ichiro Yoshikawa
2024 C conf
Characterization of Systematic Bias in ALOS-2 Multilooked Interferograms.
IGARSS
Ryu Sugimoto, Yu Morishita, Masanobu Shimada, Ryo Natsuaki, Chiaki Tsutsumi, Ryosuke Nakamura, Toru Kouyama
2024 C conf
Comparison of Temporal Decorrelation Decay Functions Over Land Cover Types for L- and C-vand SAR.
IGARSS
Yukio Endo, Yu Morishita, Ryu Sugimoto, Ryo Natsuaki, Masanobu Shimada, Chiaki Tsutsumi, Toru Kouyama, Ryosuke Nakamura
2023 C conf
A Module for Enhancing Accuracy of Building Damage Detection by Fusing Features from Pre and Post Disaster Remote Sensing Images.
IGARSS
Xuanchao Fu, Toru Kouyama, Wenhao Shen, Suomi Seki, Ryosuke Nakamura, Ichiro Yoshikawa
2023 C conf
A New Method of Flat-Fleid Calibration for a Pushbroom Sensor by Observing the Moon with Cross-Track Scan.
IGARSS
Toru Kouyama, Masataka Imai, Makiko Hashimoto, Kei Shiomi
2022 C conf
Toward Faster and Accurate Post-Disaster Damage Assessment: Development of End-to-End Building Damage Detection Framework with Super-Resolution Architecture.
IGARSS
Xuanchao Fu, Toru Kouyama, Hang Yang, Ryosuke Nakamura, Ichiro Yoshikawa
2021 C conf
Detecting Airport Activity from Sentinel-2 Imagery During COVID-19 Pandemic by Using Deep Learning.
IGARSS
Hang Yang, Toru Kouyama, Fumiharu Suzuki, Shutaro Sato, Ichiro Yoshikawa
2021 C conf
Lunar Calibration and its Validation for a Multispectral Sensor Onboard Risesat Microsatellite.
IGARSS
Masataka Imai, Junichi Kurihara, Toru Kouyama, Toshinori Kuwahara, Shinya Fujita, Yuji Sakamoto, Sei-Ichi Saitoh, Takafumi Hirata, Hirokazu Yamamoto, Yuji Sato, Yukihiro Takahashi
2021 J jnl
Radiometric Calibration for a Multispectral Sensor Onboard RISESAT Microsatellite Based on Lunar Observations.
Sensors
Masataka Imai, Junichi Kurihara, Toru Kouyama, Toshinori Kuwahara, Shinya Fujita, Yuji Sakamoto, Yuji Sato, Sei-Ichi Saitoh, Takafumi Hirata, Hirokazu Yamamoto, Yukihiro Takahashi
2020 — conf
Evaluation of neural networks with data quantization in low power consumption devices.
LASCAS
Lenin Torres-Valverde, Nevrez Imamoglu, Antonio González Torres, Toru Kouyama, Atsunori Kanemura
2020 C conf
Inflight Radiometric Calibration for a Multi-Band Sensor Onboard Risesat with the Moon.
IGARSS
Masataka Imai, Toru Kouyama, Junichi Kurihara, Toshinori Kuwahara, Shinya Fujita, Yuji Sakamoto, Sei-Ichi Saitoh, Takafumi Hirata, Yukihiro Takahashi
2020 J jnl
Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations.
Remote. Sens.
Satoshi Tsuchida, Hirokazu Yamamoto, Toru Kouyama, Kenta Obata, Fumihiro Sakuma, Tetsushi Tachikawa, Akihide Kamei, Kohei Arai, Jeffrey S. Czapla-Myers, Stuart F. Biggar, Kurtis J. Thome
2020 C conf
Verifying Rapid Increasing of Mega-Solar PV Power Plants in Japan by Applying a CNN-Based Classification Method to Satellite Images.
IGARSS
Toru Kouyama, Nevrez Imamoglu, Masataka Imai, Ryosuke Nakamura
2019 J jnl
Lunar Calibration for ASTER VNIR and TIR with Observations of the Moon in 2003 and 2017.
Remote. Sens.
Toru Kouyama, Soushi Kato, Masakuni Kikuchi, Fumihiro Sakuma, Akira Miura, Tetsushi Tachikawa, Satoshi Tsuchida, Kenta Obata, Ryosuke Nakamura
2019 Misc conf
Salient Object Detection on Hyperspectral Images Using Features Learned from Unsupervised Segmentation Task.
ICASSP
Nevrez Imamoglu, Guanqun Ding, Y. Fang, Asako Kanezaki, Toru Kouyama, Ryosuke Nakamura
2019 J jnl
Salient object detection on hyperspectral images using features learned from unsupervised segmentation task.
CoRR
Nevrez Imamoglu, Guanqun Ding, Yuming Fang, Asako Kanezaki, Toru Kouyama, Ryosuke Nakamura
2019 C conf
Sensitivity Variation of Aster Derived From Moon and Deepspace Observations in 2003 and 2017.
IGARSS
Toru Kouyama, Satoshi Tsuchida, Fumihiro Sakuma, Tetsushi Tachikawa, Hirokazu Yamamoto, Kenta Obata, Soushi Kato, Masakuni Kikuchi, Ryosuke Nakamura
2018 J jnl
Automated Attitude Determination for Pushbroom Sensors Based on Robust Image Matching.
Remote. Sens.
Ryu Sugimoto, Toru Kouyama, Atsunori Kanemura, Soushi Kato, Nevrez Imamoglu, Ryosuke Nakamura
2018 B conf
Hyperspectral Image Dataset for Benchmarking on Salient Object Detection.
QoMEX
Nevrez Imamoglu, Yu Oishi, Xiaoqiang Zhang, Guanqun Ding, Yuming Fang, Toru Kouyama, Ryosuke Nakamura
2018 J jnl
Hyperspectral Image Dataset for Benchmarking on Salient Object Detection.
CoRR
Nevrez Imamoglu, Yu Oishi, Xiaoqiang Zhang, Guanqun Ding, Yuming Fang, Toru Kouyama, Ryosuke Nakamura
2018 C conf
Object Detection in Satellite Imagery Using 2-Step Convolutional Neural Networks.
IGARSS
Hiroki Miyamoto, Kazuki Uehara, Masahiro Murakawa, Hidenori Sakanashi, Hirokazu Nosato, Toru Kouyama, Ryosuke Nakamura
2018 J jnl
Object Detection in Satellite Imagery using 2-Step Convolutional Neural Networks.
CoRR
Hiroki Miyamoto, Kazuki Uehara, Masahiro Murakawa, Hidenori Sakanashi, Hirokazu Nosato, Toru Kouyama, Ryosuke Nakamura
2018 C conf
Removing Sunlight Damage Patterns in Shatter-Less Bolometer Images by Utilizing Deepspace Observations.
IGARSS
Toru Kouyama, Soushi Kato, Tetsuya Fukuhara, Hiroaki Akiyama, Ryosuke Nakamura
2017 J jnl
Detection of Small Wildfire by Thermal Infrared Camera With the Uncooled Microbolometer Array for 50-kg Class Satellite.
IEEE Trans. Geosci. Remote. Sens.
Tetsuya Fukuhara, Toru Kouyama, Soushi Kato, Ryosuke Nakamura, Yukihiro Takahashi, Hiroaki Akiyama
2017 C conf
Moon observations for small satellite radiometric calibration.
IGARSS
Toru Kouyama, Ryosuke Nakamura, Soushi Kato, Motoki Kimura
2017 J jnl
Satellite Attitude Determination and Map Projection Based on Robust Image Matching.
Remote. Sens.
Toru Kouyama, Atsunori Kanemura, Soushi Kato, Nevrez Imamoglu, Tetsuya Fukuhara, Ryosuke Nakamura
2017 C conf
Turning a two-dimensional image sensor to an attitude sensor: Image matching for determining satellite attitudes.
IGARSS
Atsunori Kanemura, Toru Kouyama, Soushi Kato, Nevrez Imamoglu, Tetsuya Fukuhara, Ryosuke Nakamura
2016 C conf
An overview of ISS HISUI hyperspectral imager radiometric calibration.
IGARSS
Kenta Obata, Satoshi Tsuchida, Izumi Nagatani, Hirokazu Yamamoto, Toru Kouyama, Yoshiro Yamada, Yu Yamaguchi, Juntaro Ishii
2015 C conf
Assessment of HISUI radiometric performance using vicarious calibration and cross-calibration.
IGARSS
Hirokazu Yamamoto, Toru Kouyama, Kenta Obata, Satoshi Tsuchida
2014 C conf
HISUI vicarious calibration and CAL/VAL activities.
IGARSS
Hirokazu Yamamoto, Kenta Obata, Toru Kouyama, Satoshi Tsuchida
2013 C conf
Usability of lunar reflectance model based on SELENE/SP for planned HISUI radiometric calibration.
IGARSS
Toru Kouyama, Yoshiaki Ishihara, Ryosuke Nakamura, Satoshi Tsuchida, Tsuneo Matsunaga, Fumihiro Sakuma, Yasuhiro Yokota, Hirokazu Yamamoto, Satoru Yamamoto