Dr. Fumihiro Sakuma Profile

Dr. Fumihiro Sakuma

at Japan Space Systems

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 30 October 2015 Paper

ASTER VNIR 15 years growth to the standard imaging radiometer in remote sensing

Masaru Hiramatsu, Hitomi Inada, Masakuni Kikuchi, Fumihiro Sakuma

Proceedings Volume 9639, 96390C (2015) https://doi.org/10.1117/12.2193080

KEYWORDS: Remote sensing, Calibration, Radiometry, Spatial resolution, Space operations, Near infrared, Space telescopes, Telescopes, Systems modeling, Floods

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Proceedings Article | 12 October 2015 Paper

ASTER system operating achievement for 15 years on orbit

Hitomi Inada, Yoshiyuki Ito, Masakuni Kikuchi, Fumihiro Sakuma, Kenji Tatsumi, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 9639, 96391Z (2015) https://doi.org/10.1117/12.2193852

KEYWORDS: Short wave infrared radiation, Radiometry, Thermography, Signal processing, Infrared radiation, Calibration, Sensors, Space operations, Visible radiation, Near infrared

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Proceedings Article | 12 October 2015 Paper

ASTER 15 years challenging trail on-orbit operation

Masakuni Kikuchi, Fumihiro Sakuma, Kenji Tatsumi, Hitomi Inada, Yoshiyuki Itou, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 9639, 96391X (2015) https://doi.org/10.1117/12.2186268

KEYWORDS: Short wave infrared radiation, Sensors, Calibration, Space operations, Infrared radiation, Factor analysis, Safety, Radiometry, Thermography, Silicon

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Proceedings Article | 7 October 2014 Paper

ASTER TIR onboard calibration over fourteen years

Fumihiro Sakuma, Masakuni Kikuchi, Kenji Tatsumi, Hidehiko Ono

Proceedings Volume 9241, 92410N (2014) https://doi.org/10.1117/12.2067082

KEYWORDS: Sensors, Calibration, Black bodies, Silicon, Absorption, Absorbance, Mirrors, Temperature metrology, Radiometry, Satellites

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Proceedings Article | 7 October 2014 Paper

A compact thermal infrared imaging radiometer with high spatial resolution and wide swath for a small satellite using a large format uncooled infrared focal plane array

Kenji Tatsumi, Fumihiro Sakuma, Masakuni Kikuchi, Jun Tanii, Toneo Kawanishi, Shinichi Ueno, Hideki Kuga

Proceedings Volume 9241, 92411F (2014) https://doi.org/10.1117/12.2065658

KEYWORDS: Radiometry, Satellites, Sensors, Infrared imaging, Satellite imaging, Thermography, Spatial resolution, Infrared sensors, Calibration, Infrared radiation

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Proceedings Article | 16 October 2013 Paper

Onboard electrical calibration of the ASTER VNIR

Fumihiro Sakuma, Masakuni Kikuchi, Hitomi Inada

Proceedings Volume 8889, 888903 (2013) https://doi.org/10.1117/12.2028832

KEYWORDS: Calibration, Amplifiers, Short wave infrared radiation, Charge-coupled devices, Radiometry, Lamps, Optical calibration, Sensors, Image quality, Satellites

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The Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) is one of the five sensors on the NASA’s Terra satellite on orbit since December 1999. ASTER consists of three radiometers, the Visible and Near InfraRed (VNIR), the Short-Wave InfraRed (SWIR) and Thermal InfraRed (TIR) whose spatial resolutions are 15 m, 30 m and 90 m, respectively. Unfortunately the SWIR image data are saturated since April 2008 due to the offset rise caused by the cooler temperature rise, but the VNIR and the TIR are taking Earth images of good quality. The VNIR and the TIR experienced responsivity degradation while the SWIR showed little change. From the lamp calibration, Band 1 decreased the most among three VNIR bands and 31% in thirteen years. The VNIR has the electrical calibration mode to check the healthiness of the electrical circuits through the charge coupled device (CCD). Four voltage levels from Line 1 to Line 4, which are from 2.78 V to 3.10 V, are input to the CCD in the onboard calibration sequence and the output digital numbers (DNs) are detected in the images. These input voltages are monitored as telemetry data and have been stable up to now. From the electrical calibration we can check stabilities of the offset, gain ratio and gain stability of the electric circuit. The output level of the Line1 input is close to the offset level which is measured while observing the earth at night. The trend of the Line 1 output is compared to the offset level. They are similar but are not exactly the same. The trend of the even pixel and odd pixel is the same so the saturated offset levels of the odd pixel is corrected by using the even pixel trend. The gain ratio trend shows that the ratio is stable. But the ratio values are different from those measured before launch. The difference comes up to 10% for the Band 2. The correct gain ratio should be applied to the vicarious calibration result because the onboard calibration is measured with the Normal gain whereas the vicarious calibration often measures with the High gain. The cause of the VNIR responsivity degradation is not known but one of the causes might be the change of the electric circuit. The band 3 gain shows 16 % decrease whereas the gain changes of the band 1 and band 2 are 5% to 8%. The responsivity decrease after 1000 days since launch might be controlled by the electric circuit change.

Proceedings Article | 19 November 2012 Paper

Onboard calibration of the ASTER instrument over twelve years

Fumihiro Sakuma, Masakuni Kikuchi, Hitomi Inada, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 8533, 853305 (2012) https://doi.org/10.1117/12.970619

KEYWORDS: Calibration, Lamps, Short wave infrared radiation, Black bodies, Silicon, Satellites, Sensors, Data acquisition, Infrared radiation, Plasma

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Proceedings Article | 19 November 2012 Paper

Effect of temperature on onboard calibration reference material for spectral response function retrieval of the hyperspectral sensor of HISUI-SWIR spectral case

Kenji Tatsumi, Jun Tanii, Hisashi Harada, Toneo Kawanishi, Fumihiro Sakuma, Hitomi Inada, Takahiro Kawashima, Akira Iwasaki

Proceedings Volume 8533, 85330C (2012) https://doi.org/10.1117/12.970262

KEYWORDS: Sensors, Short wave infrared radiation, Signal to noise ratio, Calibration, Absorption, Optical filters, Filtering (signal processing), Linear filtering, Temperature metrology, Spectral calibration

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Proceedings Article | 19 November 2012 Paper

Development of a large-size gold-coated integrating sphere

Masatomo Harada, Fumihiro Sakuma, Yasuji Yamamoto, Yasuhiro Nakajima, Haruyoshi Katayama

Proceedings Volume 8533, 853320 (2012) https://doi.org/10.1117/12.976026

KEYWORDS: Integrating spheres, Calibration, Lamps, Short wave infrared radiation, Barium, Standards development, Gold, Spectral calibration, Infrared radiation, Imaging systems

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Proceedings Article | 9 November 2012 Paper

Onboard calibration status of the ASTER instrument

Fumihiro Sakuma, Masakuni Kikuchi, Hitomi Inada, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 8528, 85280W (2012) https://doi.org/10.1117/12.976012

KEYWORDS: Calibration, Lamps, Short wave infrared radiation, Sensors, Black bodies, Silicon, Satellites, Data acquisition, Radiometry, Spatial resolution

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Proceedings Article | 3 October 2011 Paper

Retrieval of spectral response functions for the hyperspectral sensor of HISUI (Hyperspectral Imager SUIte) by means of onboard calibration sources

Kenji Tatsumi, Nagamitsu Ohgi, Hisashi Harada, Toneo Kawanishi, Fumihiro Sakuma, Hitomi Inada, Takahiro Kawashima, Akira Iwasaki

Proceedings Volume 8176, 81760S (2011) https://doi.org/10.1117/12.897218

KEYWORDS: Sensors, Spectral calibration, Calibration, Short wave infrared radiation, Signal to noise ratio, Absorption, Error analysis, Spectroscopy, Image sensors, Satellites

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Proceedings Article | 3 October 2011 Paper

Eleven years of ASTER onboard calibration

Fumihiro Sakuma, Masakuni Kikuchi, Nagamitsu Ohgi, Hitomi Inada, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 8176, 81760F (2011) https://doi.org/10.1117/12.897744

KEYWORDS: Calibration, Lamps, Sensors, MODIS, Satellites, Optical coherence tomography, Short wave infrared radiation, Silicon, Absorption, Black bodies

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Proceedings Article | 13 November 2010 Paper

The functional evaluation model for the on-board hyperspectral radiometer

Takahiro Kawashima, Yoshito Narimatsu, Hitomi Inada, Juro Ishida, Kazuo Hamada, Yoshiyuki Ito, Jun Yoshida, Nagamitsu Ohgi, Kenji Tatsumi, Hisashi Harada, Toneo Kawanishi, Fumihiro Sakuma, Akira Iwasaki

Proceedings Volume 7857, 78570M (2010) https://doi.org/10.1117/12.870853

KEYWORDS: Sensors, Short wave infrared radiation, Spectrographs, Signal to noise ratio, Radiometry, Signal processing, Spectral calibration, Signal detection, Telescopes, Spectral resolution

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Proceedings Article | 14 October 2010 Paper

Onboard spectral calibration for the Japanese hyper-spectral sensor

Kenji Tatsumi, Nagamitsu Ohgi, Hisashi Harada, Toneo Kawanishi, Fumihiro Sakuma, Yoshito Narimatsu, Hitomi Inada, Takahiro Kawashima, Akira Iwasaki

Proceedings Volume 7826, 782625 (2010) https://doi.org/10.1117/12.866054

KEYWORDS: Sensors, Short wave infrared radiation, Calibration, Absorption, Signal to noise ratio, Optical filters, Spectral resolution, Lamps, Spectral calibration, Satellites

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Proceedings Article | 9 October 2008 Paper

ASTER on-board calibration status

Fumihiro Sakuma, Takashi Sato, Hitomi Inada, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 7106, 71060G (2008) https://doi.org/10.1117/12.800127

KEYWORDS: Calibration, Short wave infrared radiation, Sensors, Lamps, Black bodies, Photodiodes, Charge-coupled devices, Radiometry, Temperature metrology, Satellites

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Proceedings Article | 17 March 2008 Paper

IEC 62942-1 TS: First international technical specification on the technical data for radiation thermometers

J. Hollandt, O. Struss, G. Beynon, R. Bosma, R. Gaertner, F. Girard, M. Matveyev, H. McEvoy, G. Peacock, M. Sadli, F. Sakuma, H. Yoon, Z. Yuan

Proceedings Volume 6939, 693908 (2008) https://doi.org/10.1117/12.792390

KEYWORDS: Temperature metrology, Metrology, Distance measurement, Standards development, Radiation thermometry, Manufacturing, Process control, Temperature sensors, Humidity, Time metrology

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Proceedings Article | 3 October 2006 Paper

Onboard calibration status of ASTER

Fumihiro Sakuma, Takashi Sato, Hitomi Inada, Shigeki Akagi, Hidehiko Ono

Proceedings Volume 6361, 63610W (2006) https://doi.org/10.1117/12.687750

KEYWORDS: Calibration, Short wave infrared radiation, Sensors, Lamps, Black bodies, Charge-coupled devices, Photodiodes, Radiometry, Temperature metrology, Satellites

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Proceedings Article | 21 October 2005 Paper

Prediction of the radiometric calibration coefficients of ASTER/TIR

Fumihiro Sakuma, Hideyuki Tonooka, Nagamitsu Ohgi, Hidehiko Ono

Proceedings Volume 5978, 59780X (2005) https://doi.org/10.1117/12.628437

KEYWORDS: Calibration, Sensors, Black bodies, Radiometry, Temperature metrology, Satellites, Spatial resolution, Data processing, Short wave infrared radiation, Mirror pointing

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Proceedings Article | 4 November 2004 Paper

Comprehensive performance of ASTER instrument over four years of operation

Hiroyuki Fujisada, Akira Iwasaki, Fumihiro Sakuma, Seiichi Hara, Hiroshi Watanabe

Proceedings Volume 5570, (2004) https://doi.org/10.1117/12.567836

KEYWORDS: Short wave infrared radiation, Data acquisition, Calibration, Space operations, Telescopes, Space telescopes, Sensors, Thermography, Infrared radiation, Lamps

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Proceedings Article | 2 February 2004 Paper

ASTER/TIR onboard calibration status and user-based recalibration

Hideyuki Tonooka, Fumihiro Sakuma, Masahiko Kudoh, Koji Iwafune

Proceedings Volume 5234, (2004) https://doi.org/10.1117/12.514132

KEYWORDS: Calibration, Sensors, Black bodies, Databases, Temperature metrology, Short wave infrared radiation, Thermography, Infrared radiation, Electronics, Radiometry

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Proceedings Article | 8 April 2003 Paper

ASTER on-board calibration status

Fumihiro Sakuma, Akira Ono, Masahiko Kudoh, Hitomi Inada, Shigeki Akagi, Hirokazu Ohmae

Proceedings Volume 4881, (2003) https://doi.org/10.1117/12.468217

KEYWORDS: Calibration, Lamps, Short wave infrared radiation, Black bodies, Charge-coupled devices, Sensors, Photodiodes, Radiometry, Temperature metrology, Pulmonary function tests

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Proceedings Article | 28 December 1999 Paper

Radiometric measurement comparisons using transfer radiometers in support of the calibration of NASA's Earth Observing System (EOS) sensors

James Butler, B. Carol Johnson, Steven Brown, Howard Yoon, Robert Barnes, Brian Markham, Stuart Biggar, Edward Zalewski, Paul Spyak, John Cooper, Fumihiro Sakuma

Proceedings Volume 3870, (1999) https://doi.org/10.1117/12.373186

KEYWORDS: Radiometry, Optical spheres, Calibration, Integrating spheres, Short wave infrared radiation, Sensors, Satellites, Infrared radiation, Lamps, Remote sensing

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EOS satellite instruments operating in the visible through the shortwave infrared wavelength regions (from 0.4 micrometer to 2.5 micrometer) are calibrated prior to flight for radiance response using integrating spheres at a number of instrument builder facilities. The traceability of the radiance produced by these spheres with respect to international standards is the responsibility of the instrument builder, and different calibration techniques are employed by those builders. The National Aeronautics and Space Administration's (NASA's) Earth Observing System (EOS) Project Science Office, realizing the importance of preflight calibration and cross-calibration, has sponsored a number of radiometric measurement comparisons, the main purpose of which is to validate the radiometric scale assigned to the integrating spheres by the instrument builders. This paper describes the radiometric measurement comparisons, the use of stable transfer radiometers to perform the measurements, and the measurement approaches and protocols used to validate integrating sphere radiances. Stable transfer radiometers from the National Institute of Standards and Technology, the University of Arizona Optical Sciences Center Remote Sensing Group, NASA's Goddard Space Flight Center, and the National Research Laboratory of Metrology in Japan, have participated in these comparisons. The approaches used in the comparisons include the measurement of multiple integrating sphere lamp levels, repeat measurements of select lamp levels, the use of the stable radiometers as external sphere monitors, and the rapid reporting of measurement results. Results from several comparisons are presented. The absolute radiometric calibration standard uncertainties required by the EOS satellite instruments are typically in the plus or minus 3% to plus or minus 5% range. Preliminary results reported during eleven radiometric measurement comparisons held between February 1995 and May 1998 have shown the radiance of integrating spheres agreed to within plus or minus 2.5% from the average at blue wavelengths and to within plus or minus 1.7% from the average at red and near infrared wavelengths. This level of agreement lends confidence in the use of the transfer radiometers in validating the radiance scales assigned by EOS instrument calibration facilities to their integrating sphere sources.

Proceedings Article | 11 November 1996 Paper

EOS AM-1 preflight radiometric measurement comparison using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) visible/near-infrared integrating sphere

Fumihiro Sakuma, B. Carol Johnson, Stuart Biggar, James Butler, J. Cooper, Masaru Hiramatsu, Katsumi Suzuki

Proceedings Volume 2820, (1996) https://doi.org/10.1117/12.258101

KEYWORDS: Radiometry, Optical spheres, Calibration, Integrating spheres, Lamps, Sensors, Optical filters, Satellites, Black bodies, Silicon

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Proceedings Article | 29 September 1995 Paper

POLDER/OCTS preflight cross-calibration experiment using round-robin radiometers

Fumihiro Sakuma, Thierry Bret-Dibat, H. Sakate, Akira Ono, Jean-Luc Perbos, Jean-Michel Martinuzzi, Keiji Imaoka, Hiromi Oaku, Takashi Moriyama, Yuji Miyachi, Yoshio Tange

Proceedings Volume 2553, (1995) https://doi.org/10.1117/12.221367

KEYWORDS: Radiometry, Optical coherence tomography, Calibration, Integrating spheres, Lamps, Sensors, Black bodies, Lithium, Optical spheres, Copper

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Proceedings Article | 9 January 1995 Paper

Radiometric calibration techniques for ASTER

Fumihiro Sakuma, Akira Ono, Kohei Arai

Proceedings Volume 2317, (1995) https://doi.org/10.1117/12.198955

KEYWORDS: Calibration, Black bodies, Radiometry, Short wave infrared radiation, Lamps, Temperature metrology, Mirrors, Photodiodes, Thermography, Halogens

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Proceedings Article | 25 August 1993 Paper

ASTER instrument calibration plan

Akira Ono, Fumihiro Sakuma

Proceedings Volume 1939, (1993) https://doi.org/10.1117/12.152847

KEYWORDS: Calibration, Black bodies, Short wave infrared radiation, Radiometry, Lamps, Mirrors, Temperature metrology, Sensors, Integrating spheres, Thermography

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Proceedings Article | 1 August 1991 Paper

Prelaunch calibration system for optical sensors of Japanese Earth Resources Satellite

Fumihiro Sakuma, Akira Ono

Proceedings Volume 1493, (1991) https://doi.org/10.1117/12.46683

KEYWORDS: Black bodies, Calibration, Integrating spheres, Short wave infrared radiation, Spectroscopy, Lamps, Copper, Zinc, Microwave radiation, Tin

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Proceedings Article | 1 August 1991 Paper

ASTER calibration concept

Akira Ono, Fumihiro Sakuma

Proceedings Volume 1490, (1991) https://doi.org/10.1117/12.46634

KEYWORDS: Calibration, Sensors, Short wave infrared radiation, Remote sensing, Radiometry, Temperature metrology, Lamps, Thermography, Infrared radiation, Mathematical modeling

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Proceedings Article | 1 August 1991 Paper

Large integrating sphere of prelaunch calibration system for Japanese Earth Resources Satellite optical sensors

Naoshi Suzuki, Yoshito Narimatsu, Riichi Nagura, Fumihiro Sakuma, Akira Ono

Proceedings Volume 1493, (1991) https://doi.org/10.1117/12.46684

KEYWORDS: Integrating spheres, Calibration, Short wave infrared radiation, Lamps, Black bodies, Radiometry, Spectroscopy, Microwave radiation, Optical sensors, Halogens

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Showing 5 of 29 publications

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