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Journal Articles
- 2022
[j21]Munenori Miura
, Kenta Obata, Hiroki Yoshioka:
Wavelength Extension of the Optimized Asymmetric-Order Vegetation Isoline Equation to Cover the Range from Visible to Near-Infrared. Remote. Sens. 14(9): 2289 (2022)- [j20]Kenta Obata, Hiroki Yoshioka:
Correction: Obata, K.; Yoshioka, H. A Simple Algorithm for Deriving an NDVI-Based Index Compatible between GEO and LEO Sensors: Capabilities and Limitations in Japan. Remote Sens. 2020, 12, 2417. Remote. Sens. 14(17): 2020 (2022) - 2021
- [j19]Kenta Obata, Kenta Taniguchi, Masayuki Matsuoka, Hiroki Yoshioka:
Development and Demonstration of a Method for GEO-to-LEO NDVI Transformation. Remote. Sens. 13(20): 4085 (2021) - 2020
- [j18]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:
Radiometric Degradation Curves for the ASTER VNIR Processing Using Vicarious and Lunar Calibrations. Remote. Sens. 12(3): 427 (2020) - [j17]Hiroki Mizuochi, Satoshi Tsuchida, Kenta Obata, Hirokazu Yamamoto, Satoru Yamamoto:
Combination of Cross- and Inter-Band Radiometric Calibrations for a Hyperspectral Sensor Using Model-Based Spectral Band Adjustment. Remote. Sens. 12(12): 2011 (2020) - [j16]Kenta Obata, Hiroki Yoshioka:
A Simple Algorithm for Deriving an NDVI-Based Index Compatible between GEO and LEO Sensors: Capabilities and Limitations in Japan. Remote. Sens. 12(15): 2417 (2020) - [j15]Kenta Obata, Satoshi Tsuchida, Hirokazu Yamamoto, Kurtis J. Thome:
Correction: Obata, K., et al. Cross-Calibration between ASTER and MODIS Visible to Near-Infrared Bands for Improvement of ASTER Radiometric Calibration. Sensors 2017, 17, 1793. Sensors 20(14): 4057 (2020) - 2019
- [j14]Yusuke Adachi, Ryota Kikuchi, Kenta Obata, Hiroki Yoshioka:
Relative Azimuthal-Angle Matching (RAM): A Screening Method for GEO-LEO Reflectance Comparison in Middle Latitude Forests. Remote. Sens. 11(9): 1095 (2019) - [j13]Kenta Obata:
Sensitivity Analysis Method for Spectral Band Adjustment between Hyperspectral Sensors: A Case Study Using the CLARREO Pathfinder and HISUI. Remote. Sens. 11(11): 1367 (2019) - [j12]Kenta Taniguchi, Kenta Obata, Hiroki Yoshioka:
Analytical Relationship between Two-Band Spectral Vegetation Indices Measured at Multiple Sensors on a Parametric Representation of Soil Isoline Equations. Remote. Sens. 11(13): 1620 (2019) - [j11]Toru Kouyama, Soushi Kato, Masakuni Kikuchi, Fumihiro Sakuma, Akira Miura, Tetsushi Tachikawa, Satoshi Tsuchida, Kenta Obata, Ryosuke Nakamura:
Lunar Calibration for ASTER VNIR and TIR with Observations of the Moon in 2003 and 2017. Remote. Sens. 11(22): 2712 (2019) - 2017
- [j10]Munenori Miura, Kenta Obata, Kenta Taniguchi, Hiroki Yoshioka:
Improved Accuracy of the Asymmetric Second-Order Vegetation Isoline Equation over the RED-NIR Reflectance Space. Sensors 17(3): 450 (2017) - [j9]Kenta Obata, Satoshi Tsuchida, Hirokazu Yamamoto, Kurtis J. Thome:
Cross-Calibration between ASTER and MODIS Visible to Near-Infrared Bands for Improvement of ASTER Radiometric Calibration. Sensors 17(8): 1793 (2017) - 2016
- [j8]Kenta Obata, Tomoaki Miura, Hiroki Yoshioka, Alfredo R. Huete, Marco Vargas:
Spectral Cross-Calibration of VIIRS Enhanced Vegetation Index with MODIS: A Case Study Using Year-Long Global Data. Remote. Sens. 8(1): 34 (2016) - 2015
- [j7]Kenta Obata, Satoshi Tsuchida, Koki Iwao:
Inter-Band Radiometric Comparison and Calibration of ASTER Visible and Near-Infrared Bands. Remote. Sens. 7(11): 15140-15160 (2015) - 2012
- [j6]Kenta Obata, Takahiro Wada, Tomoaki Miura, Hiroki Yoshioka:
Scaling Effect of Area-Averaged NDVI: Monotonicity along the Spatial Resolution. Remote. Sens. 4(1): 160-179 (2012) - [j5]Hiroki Yoshioka, Tomoaki Miura, Kenta Obata:
Derivation of Relationships between Spectral Vegetation Indices from Multiple Sensors Based on Vegetation Isolines. Remote. Sens. 4(3): 583-597 (2012) - [j4]Kenta Obata, Tomoaki Miura, Hiroki Yoshioka:
Analysis of the Scaling Effects in the Area-Averaged Fraction of Vegetation Cover Retrieved Using an NDVI-Isoline-Based Linear Mixture Model. Remote. Sens. 4(7): 2156-2180 (2012) - 2011
- [j3]Kenta Obata, Hiroki Yoshioka:
Comparison of the Noise Robustness of FVC Retrieval Algorithms Based on Linear Mixture Models. Remote. Sens. 3(7): 1344-1364 (2011) - 2010
- [j2]Kenta Obata, Hiroki Yoshioka:
Inter-Algorithm Relationships for the Estimation of the Fraction of Vegetation Cover Based on a Two Endmember Linear Mixture Model with the VI Constraint. Remote. Sens. 2(7): 1680-1701 (2010) - [j1]Kenta Obata, Hiroki Yoshioka:
Relationships Between Errors Propagated in Fraction of Vegetation Cover by Algorithms Based on a Two-Endmember Linear Mixture Model. Remote. Sens. 2(12): 2680-2699 (2010)
Conference and Workshop Papers
- 2019
- [c25]Tsuneo Matsunaga, Kenta Obata, Koichiro Mouri, Tetsushi Tachikawa, Akira Iwasaki, Satoshi Tsuchida, Koki Iwao, Jun Tanii, Osamu Kashimura, Ryosuke Nakamura, Hirokazu Yamamoto, Soushi Kato:
HISUI Status Toward 2020 Launch. IGARSS 2019: 4495-4498 - [c24]Toru Kouyama, Satoshi Tsuchida, Fumihiro Sakuma, Tetsushi Tachikawa, Hirokazu Yamamoto, Kenta Obata, Soushi Kato, Masakuni Kikuchi, Ryosuke Nakamura:
Sensitivity Variation of Aster Derived From Moon and Deepspace Observations in 2003 and 2017. IGARSS 2019: 8819-8822 - 2018
- [c23]Tsuneo Matsunaga, Akira Iwasaki, Satoshi Tsuchida, Koki Iwao, Ryosuke Nakamura, Hirokazu Yamamoto, Soushi Kato, Kenta Obata, Osamu Kashimura, Jun Tanii, Koichiro Mouri, Tetsushi Tachikawa:
Hisui Status Toward FY2019 Launch. IGARSS 2018: 160-163 - [c22]Kenta Taniguchi, Yusuke Adachi, Kenta Obata, Hiroki Yoshioka:
Influences of Soil Line Parameters on Soil Brightness Estimation with Soil Isoline Equations in Red-Nir Reflectance Subspace. IGARSS 2018: 8255-8258 - 2017
- [c21]Tsuneo Matsunaga, Akira Iwasaki, Satoshi Tsuchida, Koki Iwao, Jun Tanii, Osamu Kashimura, Ryosuke Nakamura, Hirokazu Yamamoto, Soushi Kato, Kenta Obata, Koichiro Mouri, Tetsushi Tachikawa:
Current status of Hyperspectral Imager Suite (HISUI) onboard International Space Station (ISS). IGARSS 2017: 443-446 - [c20]Munenori Miura, Kenta Obata, Kenta Taniguchi, Hiroki Yoshioka:
Optimization technique of asymmetric-order vegetation isoline equations. IGARSS 2017: 2923-2926 - [c19]Kenta Taniguchi, Munenori Miura, Kenta Obata, Hiroki Yoshioka:
Analysis of the scaling effect present in the relative differences between NDVIs obtained from multiple sensors, based on the soil isoline equation. IGARSS 2017: 3401-3404 - 2016
- [c18]Kenta Obata, Satoshi Tsuchida, Izumi Nagatani, Hirokazu Yamamoto, Toru Kouyama, Yoshiro Yamada, Yu Yamaguchi, Juntaro Ishii:
An overview of ISS HISUI hyperspectral imager radiometric calibration. IGARSS 2016: 1924-1927 - [c17]Hirokazu Yamamoto, Kenta Obata, Satoshi Tsuchida, Gregoire Kerr, Martin Bachmann:
Cross-sensor calibration and validation between DESIS and HISUI Hyperspectral Imager on the International Space Station (ISS). IGARSS 2016: 1928-1930 - 2015
- [c16]Kenta Taniguchi, Kenta Obata, Hiroki Yoshioka:
Evaluation of BIAS reduction in cross-calibration of NDVI based on soil isoline equations: Comparison with error estimated from signal-to-noise ratio. IGARSS 2015: 625-628 - [c15]Hirokazu Yamamoto, Toru Kouyama, Kenta Obata, Satoshi Tsuchida:
Assessment of HISUI radiometric performance using vicarious calibration and cross-calibration. IGARSS 2015: 2805-2808 - 2014
- [c14]Hirokazu Yamamoto, Kenta Obata, Toru Kouyama, Satoshi Tsuchida:
HISUI vicarious calibration and CAL/VAL activities. IGARSS 2014: 2582-2585 - 2013
- [c13]Satoshi Tsuchiya, Kenta Taniguchi, Kenta Obata, Masayuki Matsuoka, Hiroki Yoshioka:
View-angle dependencies of vegetation isolines for higher-order standardization of spectral vegetation indices. IGARSS 2013: 2114-2117 - [c12]Kenta Taniguchi, Kenta Obata, Masayuki Matsuoka, Hiroki Yoshioka:
Validity of soil isoline equation for a system of canopy and soil layers. IGARSS 2013: 2613-2616 - [c11]Masayuki Matsuoka, Hiroki Yoshioka, Kenta Obata, Takeo Tadono:
Effect of bandwidth of panchromatic image on the quality of pansharpened multispectral image. IGARSS 2013: 3602-3605 - 2012
- [c10]Kenta Obata, Tomoaki Miura, Hiroki Yoshioka:
Comparison of scaling effects in fraction of vegetation cover between algorithms based on linear mixture model using VI. IGARSS 2012: 1002-1005 - [c9]Kenta Taniguchi, Kenta Obata, Hiroki Yoshioka:
Investigation of inter-sensor NDVI relationships based on analytical representation of soil isolines. IGARSS 2012: 4891-4894 - [c8]Masayuki Matsuoka, Kenta Obata, Hiroki Yoshioka:
Scaling effect of area-averaged NDVI derived from ALOS-AVNIR2 data. IGARSS 2012: 5077-5080 - [c7]Hiroki Yoshioka, Kenta Obata, Yasuhiro Ikuta:
Analysis of error in fraction of vegetation cover propageted from band-correlated errors in endmember spectra. IGARSS 2012: 5967-5970 - 2011
- [c6]Kenta Obata, Hiroki Yoshioka:
Influence of endmember spectra on scaling effect of vegetation cover estimationwith NDVI. IGARSS 2011: 2919-2922 - [c5]Hiroki Yoshioka, Kenta Obata:
Soil isoline equation in red-NIR reflectance space for cross calibration of NDVI between sensors. IGARSS 2011: 3082-3085 - 2010
- [c4]Naoki Takahashi, Kenta Obata, Masaki Iwamaru, Hiroki Yoshioka:
Parallel implementation of unmixing algorithm for variable-endmember linear mixture model. IGARSS 2010: 967-970 - [c3]Munenori Miura, Kenta Obata, Hiroki Yoshioka:
Vegetation isoline equations for analysis of hyper-spectral data with higher order interaction terms. IGARSS 2010: 1031-1034 - 2008
- [c2]Hiroki Yoshioka, Takahiro Wada, Kenta Obata, Tomoaki Miura:
Monotonicity of Area Averaged NDVI as a Function of Spatial Resolution based on a Variable Endmember Linear Mixture Model. IGARSS (3) 2008: 415-418 - [c1]Kenta Obata, Hiroki Yoshioka, Hirokazu Yamamoto:
Unmixing a Variable Endmember Linear Mixture Model for Estimation of Heat Island Mitigation by Green Vegetation. IGARSS (5) 2008: 498-501
Coauthor Index
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