Authors |
Title |
Details |
DOI |
2020 |
Y.Otsuka, T.Shimada, R.Natsuaki, A.Hirose , |
Consideration on singular-point generating mechanisms by analyzing the effect of phase-and-polarization optimization in PolInSAR, |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, (Accepted). |
10.1109/JSTARS.2020.2983801 |
R. Natsuaki and H. Nagai, |
Synthetic Aperture Radar Flood Detection under Multiple Modes and Multiple Orbit Conditions: A Case Study in Japan on Typhoon Hagibis, 2019, |
IEEE Transactions on Geoscience and Remote Sensing, Vol. 57, No. 10, pp. 7907-7917, 2019. |
10.3390/rs12060903 |
2019 |
Y. Li, S. Martinis, M. Wieland, S. Schlaffer, and R. Natsuaki, |
Urban flood mapping using SAR intensity and interferometric coherence via Bayesian network fusion, |
Remote Sensing, Vol. 11, No. 19, 2231, 2019. |
10.3390/rs11192231 |
Y. Sunaga, R. Natsuaki and A. Hirose, |
Land form classification and similar land-shape discovery by using complex-valued convolutional neural networks, |
IEEE Transactions on Geoscience and Remote Sensing, Vol. 57, No. 10, pp. 7907-7917, 2019. |
10.1109/TGRS.2019.2917214 |
2018 |
S.Fujinami, R.Natsuaki, K.Ichikawa and A.Hirose, |
Experimental analysis on the mechanisms of singular point generation in InSAR by employing scaled optical interferometry, |
IEEE Transactions on Geoscience and Remote Sensing, Vol. 56, No. 7, pp. 3830-3837, 2018. |
10.1109/TGRS.2018.2812898 |
A.Hirose, T. Shimada and R. Natsuaki |
Pixel-by-pixel scattering mechanism vector optimization in high resolution PolIn-SAR: Its basic ideas and significance (Invited, In Japanese), |
IEICE Transactions on Electrionics, Vol. 101-C, No. 8 pp. 290-299, 2018. |
Available Here |
R. Natsuaki, H. Nagai, N. Tomii, T. Tadono, |
Sensitivity and Limitation in Damage Detection for Individual Buildings Using InSAR Coherence - A Case Study in 2016 Kumamoto Earthquakes, |
Remote Sensing, Vol. 10, No. 2, 245, |
10.3390/rs10020245 |
T.Shimada, R.Natsuaki and A.Hirose, |
Pixel-by-pixel scattering mechanism vector optimization in high resolution PolInSAR, |
IEEE Transactions on Geoscience and Remote Sensing, Vol. 56, No. 5, pp. 2587-2596, 2018. |
10.1109/TGRS.2017.2768604 |
2017 |
R. Natsuaki, T. Motohka, M. Watanabe, M. Shimada and S. Suzuki, |
An autocorrelation based radio frequency interference detection and removal method in azimuth frequency domain for SAR image, |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 10, no. 12, pp. 5736-5751, Dec. 2017. |
10.1109/JSTARS.2017.2775205 |
R. Natsuaki, T. Anahara, T. Kotoura, Y. Iwatsuka, N. Tomii, H. Katayama, and T. Nishihata, |
Synthetic Aperture Radar Interferometry for Disaster Monitoring of Harbor Facilities, |
Journal of Disaster Research, Vol. 12, No. 3, pp. 526-535, 2017. |
10.20965/jdr.2017.p0526 |
R. Natsuaki, T. Motohka, M. Shimada and S. Suzuki, |
Burst Misalignment Evaluation for ALOS-2 PALSAR-2 ScanSAR-ScanSAR Interferometry, |
Remote Sensing, Vol. 9, No.3, 216, 2017. |
10.3390/rs9030216 |
R. Natsuaki, M. Watanabe, M. Ohki, T. Motohka, S. Suzuki and M. Shimada, |
Volcanic Ash detection using ALOS-2 PALSAR-2 multi-temporal interferometric coherence including ScanSAR mode data, (in Japanese) |
Journal of the Remote Sensing Society of Japan, Vol. 37, No. 1, pp. 1-12, 2017. |
10.11440/rssj.37.1 |
2016 |
R. Natsuaki, T. Anahara, T. Kotoura, Y. Iwatsuka, N. Tomii, H. Katayama and T. Nishihata, |
Preliminary Experiment for Disaster Monitoring in Harbor Using Synthetic Aperture Radar Interferometry (In Japanese) |
Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), Vol. 72, No. 2, pp 748-753, 2016. |
10.2208/jscejoe.72.I_748 |
T. Anahara, R, Natsuaki, T. Kotoura, Y. Iwatsuka, Y. Sasaki, N. Tomii, Y. Maeda, T. Nishihata, |
Deformation Measurement of Harbor Facilities with Satellite-Borne InSAR Analysis (in Japanese) |
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) Vol. 72, No. 2, pp. 1633- 1638, 2016. |
10.2208/kaigan.72.I_1633 |
M. Ohki, M. Watanabe, R. Natsuaki, T. Motohka, H. Nagai, T. Tadono, S. Suzuki, K. Ishii, T. Itoh, T. Yamanokuchi, M. Shimada, |
Flood area detection by ALOS-2 PALSAR-2 data for the 2015 heavy rainfall disaster in Kanto and Tohoku area, Japan, (in Japanese) |
Journal of the Remote Sensing Society of Japan, Vol. 36, No. 4, pp. 348-359, 2016. |
10.11440/rssj.36.348 |
R. Natsuaki, H. Nagai, T. Motohka, M. Ohki, M. Watanabe, R. B. Thapa, T. Tadono, M. Shimada and S. Suzuki, |
SAR interferometry using ALOS-2 PALSAR-2 data for the Mw 7.8 Gorkha Nepal earthquake, |
Earth, Planets and Space, 68:15, 2016. |
10.1186/s40623-016-0394-4 |
2015 |
E. O. Lindsey, R. Natsuaki, X. Xu, M. Shimada, M. Hashimoto, D. Melgar, and D. T. Sandwell, |
Line-of-sight displacement from ALOS-2 interferometry: Mw 7.8 Gorkha Earthquake and Mw 7.3 aftershock, |
Geophysical Research Letters, Vol. 42, pp. 6655-6661, 2015. |
10.1002/2015GL065385 |
2014 and past |
R. Natsuaki and A. Hirose, |
Circular Property of Complex-Valued Correlation Learning in CMRF-Based Filtering for Synthetic Aperture Radar Interferometry, |
Neurocomputing, Vol. 134, No. 25, pp. 165-172, 2014. |
10.1016/j.neucom.2012.12.071 |
K. Terabayashi, R. Natsuaki, A. Hirose, |
Ultrawideband Direction-of-Arrival Estimation Using Complex-Valued Spatiotemporal Neural Networks, |
IEEE Transactions on Neural Networks and Learning Systems, Vol. 25, No. 9, pp. 1727-1732, 2014. |
10.1109/TNNLS.2014.2313869 |
R. Natsuaki and A. Hirose, |
"InSAR local co-registration method assisted by shape-from-shading," |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol.6, Issue 2, pp. 953-959, 2013. |
10.1109/JSTARS.2012.2219506 |
R. Natsuaki and A. Hirose, |
"SPEC Method - A fine co-registration method for SAR interferometry," |
IEEE Transactions Geoscience and Remote Sensing, Vol.49, No.1, pp. 28-37, 2011. |
10.1109/TGRS.2010.2057435 |
Authors |
Title |
Details |
2020 |
2019 |
R. Natsuaki and A. Noda, |
Demonstration of InSAR-based Three Dimensional Continuous Deformation Monitoring, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2019, TU2.R7.3 (Invited), Jul. 2019. |
R. Natsuaki, N. Sakar, N. Yague-Martinez, M. Pinheiro and P. Prats-Iraola, |
Investigations on the Optimum Combination of Azimuth Phase Coding and Up- and Down-Chirp Modulation for Range Ambiguity Suppression, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2019, WEP1.PC.1, Jul. 2019. |
H. Kim, J. Song, R. Natsuaki and A. Hirose, |
Dependence of Polarimetric Characteristics on SAR Resolutions: Experimental Analysis, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2019, THP2.PC.9, Jul. 2019. |
Y. Otsuka, R. Natsuaki and A. Hirose, |
Enhancement of Polarization Mechanism in Pixel-by-Pixel Phase Optimization in PolInSAR, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2019, FR2.R11.4, Jul. 2019. |
R. Natsuaki and P. Prats-Iraola, |
Time variant and narrow bandwidth RFI detection in multi-receiver SAR: preliminary study in ALOS-2, |
RFI 2019 Toulouse, TU-AM, Sep. 2019. |
J. Song, H. Kim, R. Natsuaki and A. Hirose, |
Experimental analysis on spatial resolution and convergence of Poincare parameter versus window-size for ALOS-2 and Pi-SAR-L2 observation, |
Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) 2019 Xiamen, pp. 1-4. 2019. |
A. Hirose, Y. Sunaga and R. Natsuaki, |
Recent Progress in Adaptive SAR Data Structurization in Complex and Hypercomplex Domain, |
International Workshop on Big SAR Data (BigSARData), pp. 1-6, (Invited), 2019. |
2018 |
R. Natsuaki, T. Shimada and A. Hirose, |
Effect of Temporal Baseline in Pixel-by-Pixel Scattering Mechanism Vector Optimization for PolInSAR, |
12th European Conference on Synthetic Aperture Radar (EUSAR 2018), D.9.2 (Invited), June 2018. |
R. Natsuaki and A. Hirose, |
Interferometric and Polarimetric Effect of Wideband Radio Fre-quency Interference in ALOS-2, |
12th European Conference on Synthetic Aperture Radar (EUSAR 2018), D.9.3 (Invited), June 2018. |
R. Natsuaki and A. Hirose, |
L-band SAR Interferometric analysis for flood detection in urban area - A case study in 2015 Joso flood, Japan, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2018, TH4.R12.6 (Invited), Jul. 2018. |
R. Natsuaki and A. Hirose, |
Profiles of RFI in ALOS-2 images - a case study in Tokyo bay, Japan, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2018, MO4.R9.2 (Invited), Jul. 2018. |
Y. J. Kwak, R. Natsuaki, S. H. Yun, |
Effect of Building Orientation on Urban Flood Mapping Using ALOS-2 Amplitude Images, |
International Geoscience and Remote Sensing Symposium (IGARSS) 2018, TUP1.PD.5, Jul. 2018. |
Y.Sunaga, R.Natsuaki, A.Hirose, |
Proposal of complex-valued convolutional neural networks for similar land-shape discovery in interferometric synthetic aperture radar, |
Int'l Conf. on Neural Information Processing (ICONIP) 2018, pp. 340-349, 2018. |
Y.Otsuka, T.Shimada, R.Natsuaki, A.Hirose, |
Analysis of Singular-point Generating Mechanisms Based on the Correlations among the Parameters inCoherency Matrix and Those in the Optimized Scattering-mechanism Vector in PolInSAR, |
Progress in Electromagnetics Symposium (PIERS) 2018, pp. 474, 2018. |
2017 |
R. Natsuaki, A. Hirose, |
Temporally coherent radio frequency interference in ALOS-2 PALSAR-2 image, |
CEOS SAR Calibration and Validation Workshop 2017, S23-1, September 2017. |
R. Natsuaki, T. Motohka, S. Suzuki, T. Tadono, |
Radio Frequency Interference in ALOS-2 PALSAR-2 Interferogram, |
32nd URSI General Assembly and Scientific Symposium, EFGHJ1-3 (Invited), August, 2017. |
R. Natsuaki, T. Motohka, T. Tadono, S. Suzuki, |
Polarimetric Characteristics of Temporarily Coherent RFI in ALOS-2 PALSAR-2, |
IEEE International Geoscience and Remote Sensing Symposium 2017, WEP2.PB.3, July 2017. |
R. Natsuaki, M. Ohki, H. Nagai, T. Motohka, T. Tadono, M. Shimada, S. Suzuki, |
Performance of ALOS-2 PALSAR-2 for Disaster Response, |
IEEE International Geoscience and Remote Sensing Symposium 2017, WE1.L4.4 (Invited), July 2017. |
R. Natsuaki, T. Motohka, S. Suzuki and T. Tadono, |
Ionospheric effect observation using long path of ALOS-2 ScanSAR InSAR, |
2nd GEOlab-RISH Joint workshop on GNSS and SAR Technologies for Atmospheric Sensing, The 331st Symposium on Humanosphere Science, S-02, March 2017. |
2016 |
R. Natsuaki, T. Motohka, S. Suzuki and M. Shimada, |
Validation of burst overlapping for ALOS-2 PALSAR-2 ScanSAR-ScanSAR interferometry, |
CEOS-SAR 2016, Validation and Applications I-1, September 2016. |
R. Natsuaki, T. Motohka, M. Ohki, M. Watanabe and S. Suzuki, |
Burst overlapping of ALOS-2 PALSAR-2 ScanSAR-ScanSAR interferometry, |
SPIE Remote Sensing 2016, 10000-5, September 2016. |
R. Natsuaki, M. Watanabe, T. Motohka and S. Suzuki, |
RFI Detection and Removal in Range-Time Azimuth-Frequency Domain, |
IEEE International Geoscience and Remote Sensing Symposium 2016, MO4.L9.5, July 2016. |
M. Watanabe, M. Sonobe, R. Natsuaki, S. Suzuki, |
Trial of Volcanic Ash Detection Using L-band Synthetic Aperture Radar (SAR), |
IEEE International Geoscience and Remote Sensing Symposium 2016, FR3.L12.4, July 2016. |
R. Natsuaki, T. Motohka, M. Watanabe, M. Ohki, Rajesh B. Thapa, H. Nagai, T. Tadono, M. Shimada and S. Suzuki, |
Emergency Observation and Disaster Monitoring Performed by ALOS-2 PALSAR-2, |
IEEE International Geoscience and Remote Sensing Symposium 2016, WE1.L10.3 (Invited), July 2016. |
Y. Kankaku, S. Suzuki, T. Motohka, M. Ohki, R. Natsuaki, M. Shimada, |
ALOS-2 Operation Status, |
IEEE International Geoscience and Remote Sensing Symposium 2016, WE1.L10.1 (Invited), July 2016. |
R. Natsuaki, M. Watanabe, M. Ohki, and S. Suzuki, |
Disaster Affected Area Detection and Display Application for Non-SAR Specialists, |
11th European Conference on Synthetic Aperture Radar (EUSAR 2016), G1.4.4 (Invited), June 2016. |
R. Natsuaki, H. Nagai, T. Motohka, M. Ohki, M. Watanabe and S. Suzuki, |
Emergency observation and its analysis using ALOS-2 PALSAR-2 in 2015, |
SPIE Asia-Pacific Remote Sensing 2016: 9877-41, April 2016. |
2015 |
R. Natsuaki, T. Motooka, M. Shimada, Y. Kankaku, M. Watanabe, S. Suzuki, |
Current status of the ALOS-2 PALSAR-2 calibration and validation, |
CEOS-SAR 2015. Session 4-2, September 2015. |
A. Muhuri, A. Bhattacharya, R. Natsuaki and A. Hirose, |
Glacier Surface Velocity Estimation Using Stokes Vector Correlation, |
The 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), pp. 606-609, September 2015. |
S. Fujinami, R. Natsuaki and A. Hirose, |
Scaled experimental analysis of singular point generation mechanisms in interferometric SAR, |
The 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), pp. 226-230, September 2015. |
R. Natsuaki, M. Watanabe, T. Motohka, M. Ohki and M. Shimada, |
Assessment of the Stability for Active Volcanic Small Island by Use of SAR Interferometry: A case study in Nishinoshima island, |
The 5th Asia-Pacific Conference on Synthetic Aperture Radar(APSAR), pp. 841-844, September 2015. |
R. Natsuaki, H. Nagai, M. Watanabe, M. Ohki, T. Motohka, R. B. Thapa, T. Tadono, M. Shimada and S. Suzuki, |
Recent Disaster Response of ALOS-2 PALSAR-2 Based on SAR Interferometry, |
IAA Climate Change and Disaster Management Conference, IAA-MEX-15-02-01, September 2015. |
S. Fujinami, R. Natsuaki and A. Hirose, |
Experimental Analysis of Singular Point Generation Mechanisms in Interferometric SAR Using Optics: The Possibility of Singular Point Generation By interference in a Single Pixel, |
IEEE International Geoscience and Remote Sensing Symposium 2015, pp. 4256-4259, July 2015. |
R. Natsuaki, M. Watanabe, T. Motohka, M. Ohki, M. Shimada, |
Accuracy improvement by residue and amplitude based local co-registration method for ALOS-2/PALSAR-2 DInSAR, |
IEEE International Geoscience and Remote Sensing Symposium 2015, pp. 302-305, July 2015. |
R. Natsuaki, M. Watanabe, T. Motohka, M. Ohki, M. Shimada, |
Clarification of the DInSAR image with Local Co-registration Method using Singular Points and Amplitude Information, |
The 30th International Symposium on Space Technology and Science(ISTS), 2015-n-2, April 2015. |
2014 and past |
R. Natsuaki, M. Watanabe, T. Motooka, M. Ohki and M. Shimada, |
Report of ALOS-2 / PALSAR-2 Launch and Its Recent Status, |
Asian Conference on Remote Sensing (ACRS) 2014, Nay Pyi Taw, Myanmar, October 2014. |
R. Natsuaki and A. Hirose, |
Changes of dominant scatterers and propagation paths as a possible origin of singular points in radar interferometry: Experimental analysis, |
IEEE International Geoscience and Remote Sensing Symposium 2014, pp. 290-293, July 2014. |
R. Natsuaki and M. Shimada, |
Local co-registration method for creating accurate SAR interferogram in mountainous regions, |
Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) 2014, Matsushima, July 2014. |
R. Natsuaki and A. Hirose |
Performance improvement of InSAR local co-registration with multiresolution interferogram |
2013 Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) 2013 Tsukuba |
R. Natsuaki and A. Hirose |
Phase property in complex-correlation and real-imaginary-correlation filtered SAR interferograms and its influence on DEM quality |
International Geoscience and Remote Sensing Symposium (IGARSS) 2013 Melbourne |
R. Natsuaki and A. Hirose |
Improvement of ALOS interferogram quality by use of the local co-registration method using singular-point and amplitude information |
International Geoscience and Remote Sensing Symposium (IGARSS) 2012 Munich |
A. Hirose and R. Natsuaki |
Circular property in complex-valued correlation learning observed in CMRF-based singular unit restoration for phase unwrapping |
Int'l Workshop on Intelligence Science and Intelligent Data Engineering (ISciDE) 2011 Xi'an |
R. Natsuaki and A. Hirose |
Local co-registration for distortion reduction in SAR interferogram using amplitude information - Combination of SPEC method and shape-from-shading - |
International Geoscience and Remote Sensing Symposium (IGARSS) 2011 Vancouver |
R. Natsuaki and A. Hirose |
Enhancement of filtering performance by local and nonlinear co-registration in InSAR processing |
Asia-Pacific Radio Science Conference (AP-RASC) 2010 Toyama. |
R. Natsuaki and A. Hirose |
Local, nonlinear adaptive co-registration of master and slave interferometric SAR complex image data for high quality digital elevation map generation |
International Geoscience and Remote Sensing Symposium (IGARSS) 2009 Capetown |