Geoinformatics Unit

PRESA DE ITAIPU, Paraguay, April 26, 2018 (Sentinel-2 imagery © ESA)

What's New

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Preliminary Flood Mapping in East Japan after the Typhoon Hagibis

On October 12, 2019, the Typhoon Hagibis hit East Japan, triggering floods and landslides. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the affected areas using Sentinel-1 SAR data provided by ESA.

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Preliminary Flood Mapping Following Heavy Rain in Laos

On August 26, 2019, torrential rain hit Laos, triggering floods. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the affected areas using earth observation data. The Sentinal Asia Program provided ALOS-2 PALSAR-2 data used in this analysis.

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Paper accepted for publication in ISPRS Journal of Photogrammetry and Remote Sensing

Our paper entitled "Blind Cloud and Cloud Shadow Removal of Multitemporal Images Based on Total Variation Regularized Low-Rank Sparsity Decomposition" written by Yong Chen, Wei He, Naoto Yokoya, and Ting-Zhu Huang has been accepted for publication in ISPRS Journal of Photogrammetry and Remote Sensing.

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Preliminary Flood Mapping Following Torrential Rain in Saga, Japan

On August 28, 2019, torrential rain hit Saga Prefecture, Japan, triggering floods and landslides. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the affected areas using earth observation data. The Sentinal Asia Program provided ALOS-2 PALSAR-2 data used in this analysis.

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Preliminary Flood Mapping after the Southwest Monsoon in Myanmar

Early August 2019, the Southwest monsoon hit Myanmar flooding several areas. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the affected areas using earth observation data. The Sentinal Asia Program provided the high-resolution ALOS-2 PALSAR-2 data used in this analysis.

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Paper accepted for publication in IEEE IEEE TCYB

Our paper entitled "Hyperspectral Image Restoration Using Weighted Group Sparsity Regularized Low-Rank Tensor Decomposition" written by Yong Chen, Wei He, Naoto Yokoya, and Ting-Zhu Huang has been accepted for publication in IEEE Transactions on Cybernetics (TCYB).

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Preliminary Analysis of Earthquakes in California Using Sentinel-1 Data

On 4 and 6 July 2019, two earthquakes (M 6.4 and M 7.1) struck SE California in the United States. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary analysis of the affected areas using ESA's Sentinel-1 SAR data.

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Paper accepted for publication in IEEE TGRS

Our paper entitled "Remote sensing image reconstruction using tensor ring completion and total-variation" has been accepted for publication in IEEE Transactions on Geoscience and Remote Sensing (TGRS).

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Preliminary Analysis of the Mw 8.0 Peru Earthquake Using Sentinel-1 Data

On 26 May 2019, a magnitude 8.0 earthquake struck Peru. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary analysis of the affected areas using ESA earth observation data.

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Preliminary Mapping of A Slump Landslide in Aybasti, Turkey

On May 16, 2019, a major slump landslide occurred at Aybasti, Turkey. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted preliminary mapping of the affected areas using earth observation data. The ALOS-2 PALSAR-2 data used in this analysis was acquired through the Sentinel Asia Program.

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Preliminary flood mapping after the Cyclone Fani in India

On early May 2019, the Cyclone Fani hit the central east coast of India flooding several areas.

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Preliminary Analysis of the Mw6.1 Luzon Earthquake Using ALOS-2 Data

On 22 April 2019, an M 6.1 earthquake struck the Philippines at 5:11 pm (local time).

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Proposals accepted for EO-RA2

Our two proposals were accepted for the 2nd Research Announcement on the Earth Observations (EO-RA2) coordinated by JAXA.

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Preliminary Flood Mapping in Aq Qala, Iran, Following Torrential Rain in late March 2019

Torrential rain in late March 2019 hit the northern part of Iran causing extensive flooding in urban areas and surroundings.

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Preliminary Flood Mapping Following Torrential Rain in Pol-e Dokhtar, Iran on March 26, 2019

The first heavy rain hit Northern Iran on 21st March 2019, and the second one hit southern and central Iran after just a few days. According to the authorities, most of the people in Pol-e Dokhtar town in Lorestan province were trapped in balconies and rooftops due to the huge amount of water on the streets.

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Proposals accepted for KAKENHI

Our two proposals were accepted for KAKENHI Grant-in-Aid for Young Scientists, Japan Society for the Promotion of Science (JSPS).

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Preliminary Flood Mapping Following Torrential Rain in Iran on March 21, 2019

Torrential rain on 21 March 2019 hits the northern part of Iran, leaving local people homeless in the Golestan province. Although the capital of the Golestan province (Gorgan city) is situated too far from the inundated area, Aqqala town has been seriously affected.

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Preliminary Flood Mapping Following a Dam Collapse in Brazil on January 25, 2019

On late January 2019, extensive damage occurred due to the collapse of a tailings dam in Brazil.

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Papers accepted at CVPR 2019

Pleased to announce that two papers were accepted to CVPR 2019, Long Beach, CA.

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Papers accepted at ICASSP 2019

Pleased to announce that two papers were accepted to IEEE ICASSP 2019, Brighton, UK.

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Preliminary Damage Mapping Following the M7.5 Earthquake in Indonesia on September 28, 2018

On September 28, 2018 (10:02:43 UTC), an M7.5 earthquake occurred 8km North of Palu, Indonesia, causing a tsunami with waves up to 2 m.

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IEEE GRSL Special Stream Call for Papers

Submission for the special stream "Advanced Processing for Multimodal Optical Remote Sensing Imagery" of IEEE Geoscience and Remote Sensing Letters is open since October 1, 2018.

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Preliminary Tsunami Height Mapping Following the M7.5 Earthquake in Indonesia on September 28, 2018

On September 28, 2018 (10:02:43 UTC), an M7.5 earthquake occurred 8km North of Palu, Indonesia, causing a tsunami with waves up to 2 m.

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Paper published in ISPRS International Journal of Geo-Information

Our paper entitled "Multi-temporal Sentinel-1 and -2 data fusion for optical image simulation" has been published in ISPRS International Journal of Geo-Information.

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Preliminary Flood Mapping Following Typhoon Mangkhut in the Philippines on September 15, 2018

On September 15, 2018, the Typhoon Mangkhut caused extensive flooding in the northern region of the Philippines. The Geoinformatics Unit from RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the flooded areas using satellite remote sensing imagery.

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Preliminary Landslide Mapping Following the M6.7 Earthquake in Hokkaido, Japan, on September 6, 2018

On September 6, 2018, an M6.7 earthquake occurred in the Hokkaido region, eastern Japan, causing severe damage and casualties. The Geoinformatics Unit from RIKEN Center for Advanced Intelligence Project, Tokyo Institute of Technology, and the International Research Institute of Disaster Science conducted a preliminary damage mapping using satellite remote sensing imagery (ALOS-2) acquired from the affected areas.

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Preliminary Flood Mapping Following Dam Collapse in Myanmar on August 29, 2018

On August 29, 2018, extensive flooding occurred due to the collapse of the Swar Irrigation Dam in southern Myanmar.

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Preliminary Landslide Mapping Following the Torrential Rain in Western Japan on July 6, 2018

On July 6, 2018, severe damage and causalities occurred due to the torrential rain in western Japan. The Geoinformatics Unit from RIKEN-AIP and the International Research Institute of Disaster Science (IRIDeS) conducted a preliminary damage mapping using satellite remote sensing imagery (ALOS-2) acquired from the affected areas. The ALOS-2 data used in this analysis was provided by the large-scale disaster satellite image analysis support team of the National Aerospace Exploration Agency of Japan.

We are a RESEARCH GROUP in Tokyo
specialized in Remote Sensing and Geoinformatics

Geoinformatics Unit aims to develop intelligent systems that monitor and assess the state and changes of urban areas and natural environments from large-scale time-series geospatial data. We study fundamental technologies of geospatial data analysis that can deal with data incompleteness, limited training data, and multimodality. Our applied research includes disaster response, urban planning, and forest monitoring.

Our Team


Bruno ADRIANO
Postdoctoral Researcher

Gerald BAIER
Postdoctoral Researcher

Wei HE
Postdoctoral Researcher

Junshi XIA
Research Scientist

Naoto YOKOYA
Unit Leader

Tatsumi UEZATO
Postdoctoral Researcher

Rey Rusty QUIDES
Intern

Yan Yu
Intern

Contact Us

RIKEN Center for Advanced Intelligence Project
Nihonbashi 1-chome Mitsui Building, 15th floor
1-4-1 Nihonbashi, Chuo-ku
Tokyo 103-0027, Japan
+81-48-467-3626
(first name).(last name)riken.jp