Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project

Yrjö Rauste; G. de Grandi; T. Richards; Å. Rosenqvist; G. Perna; E. Franchino; F. Holecz; P. Pasquali

doi:10.1109/IGARSS.1999.774428

Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project

Yrjö Rauste, G. de Grandi, T. Richards, Å. Rosenqvist, G. Perna, E. Franchino, F. Holecz, P. Pasquali

Not published at VTT

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

5 Citations (Scopus)

Abstract

The Global Rain Forest Mapping project GRFM is an international collaborative effort promoted by the National Space Development Agency of Japan, NASDA. The main goal of the project is to produce a wall to wall map of the entire tropical rain forest using the L-band SAR on board the JERS-1 spacecraft. Within the GRFM project the European Commission Joint Research Centre acts as main processing node for the assemblage and validation of the radar mosaics related to the African continent. The authors give an overview of the techniques used for the compilation of these wide area radar mosaics, with emphasis on the scene geo-referencing. A global optimization technique is used based on a least squares estimation of the scene geometry parameters given observations which comprise intra-scenes correlation measures, ground control points and nominal scene position derived by orbital parameters and the range-doppler equation. Two acquisitions at different dates are simultaneously included in the estimation process, thus assuring optimal co-registration between dates. A similar technique is used for radiometric calibration of the mosaic. Validation of the multi-temporal radar map's geometry with respect to existing cartographic data-a key issue in view of certain thematic applications-is also discussed. A RMSE (Residual Mean Squared Error) of 56 m was obtained when using tie-points between scenes only. This error characterizes the mosaic internal consistency for scenes down-sampled to a pixel spacing of 100 m. A RMSE of 240 m was obtained when using ground control points (GCP) derived from digital cartographic data.

Original language	English
Title of host publication	IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	750-752
ISBN (Print)	978-0-7803-5207-0
DOIs	https://doi.org/10.1109/IGARSS.1999.774428
Publication status	Published - 1999
MoE publication type	B3 Non-refereed article in conference proceedings
Event	IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). : Remote Sensing of the System Earth - A Challenge for the 21st Century - Hamburg, Germany Duration: 28 Jun 1999 → 2 Jul 1999

Conference

Conference	IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99).
Country/Territory	Germany
City	Hamburg
Period	28/06/99 → 2/07/99

Access to Document

10.1109/IGARSS.1999.774428

Cite this

Rauste, Y., de Grandi, G., Richards, T., Rosenqvist, Å., Perna, G., Franchino, E., Holecz, F., & Pasquali, P. (1999). Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project. In IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999 (pp. 750-752). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/IGARSS.1999.774428

Rauste, Yrjö ; de Grandi, G. ; Richards, T. et al. / Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project. IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999. IEEE Institute of Electrical and Electronic Engineers, 1999. pp. 750-752

@inproceedings{131c4b0f27f2470ea893d24add11e777,

title = "Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project",

abstract = "The Global Rain Forest Mapping project GRFM is an international collaborative effort promoted by the National Space Development Agency of Japan, NASDA. The main goal of the project is to produce a wall to wall map of the entire tropical rain forest using the L-band SAR on board the JERS-1 spacecraft. Within the GRFM project the European Commission Joint Research Centre acts as main processing node for the assemblage and validation of the radar mosaics related to the African continent. The authors give an overview of the techniques used for the compilation of these wide area radar mosaics, with emphasis on the scene geo-referencing. A global optimization technique is used based on a least squares estimation of the scene geometry parameters given observations which comprise intra-scenes correlation measures, ground control points and nominal scene position derived by orbital parameters and the range-doppler equation. Two acquisitions at different dates are simultaneously included in the estimation process, thus assuring optimal co-registration between dates. A similar technique is used for radiometric calibration of the mosaic. Validation of the multi-temporal radar map's geometry with respect to existing cartographic data-a key issue in view of certain thematic applications-is also discussed. A RMSE (Residual Mean Squared Error) of 56 m was obtained when using tie-points between scenes only. This error characterizes the mosaic internal consistency for scenes down-sampled to a pixel spacing of 100 m. A RMSE of 240 m was obtained when using ground control points (GCP) derived from digital cartographic data.",

author = "Yrj{\"o} Rauste and {de Grandi}, G. and T. Richards and {\AA}. Rosenqvist and G. Perna and E. Franchino and F. Holecz and P. Pasquali",

year = "1999",

doi = "10.1109/IGARSS.1999.774428",

language = "English",

isbn = "978-0-7803-5207-0",

pages = "750--752",

booktitle = "IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). : Remote Sensing of the System Earth - A Challenge for the 21st Century ; Conference date: 28-06-1999 Through 02-07-1999",

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Rauste, Y, de Grandi, G, Richards, T, Rosenqvist, Å, Perna, G, Franchino, E, Holecz, F & Pasquali, P 1999, Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project. in IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999. IEEE Institute of Electrical and Electronic Engineers, pp. 750-752, IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). , Hamburg, Hamburg, Germany, 28/06/99. https://doi.org/10.1109/IGARSS.1999.774428

Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project. / Rauste, Yrjö; de Grandi, G.; Richards, T. et al.
IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999. IEEE Institute of Electrical and Electronic Engineers, 1999. p. 750-752.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific

TY - GEN

T1 - Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project

AU - Rauste, Yrjö

AU - de Grandi, G.

AU - Richards, T.

AU - Rosenqvist, Å.

AU - Perna, G.

AU - Franchino, E.

AU - Holecz, F.

AU - Pasquali, P.

PY - 1999

Y1 - 1999

N2 - The Global Rain Forest Mapping project GRFM is an international collaborative effort promoted by the National Space Development Agency of Japan, NASDA. The main goal of the project is to produce a wall to wall map of the entire tropical rain forest using the L-band SAR on board the JERS-1 spacecraft. Within the GRFM project the European Commission Joint Research Centre acts as main processing node for the assemblage and validation of the radar mosaics related to the African continent. The authors give an overview of the techniques used for the compilation of these wide area radar mosaics, with emphasis on the scene geo-referencing. A global optimization technique is used based on a least squares estimation of the scene geometry parameters given observations which comprise intra-scenes correlation measures, ground control points and nominal scene position derived by orbital parameters and the range-doppler equation. Two acquisitions at different dates are simultaneously included in the estimation process, thus assuring optimal co-registration between dates. A similar technique is used for radiometric calibration of the mosaic. Validation of the multi-temporal radar map's geometry with respect to existing cartographic data-a key issue in view of certain thematic applications-is also discussed. A RMSE (Residual Mean Squared Error) of 56 m was obtained when using tie-points between scenes only. This error characterizes the mosaic internal consistency for scenes down-sampled to a pixel spacing of 100 m. A RMSE of 240 m was obtained when using ground control points (GCP) derived from digital cartographic data.

AB - The Global Rain Forest Mapping project GRFM is an international collaborative effort promoted by the National Space Development Agency of Japan, NASDA. The main goal of the project is to produce a wall to wall map of the entire tropical rain forest using the L-band SAR on board the JERS-1 spacecraft. Within the GRFM project the European Commission Joint Research Centre acts as main processing node for the assemblage and validation of the radar mosaics related to the African continent. The authors give an overview of the techniques used for the compilation of these wide area radar mosaics, with emphasis on the scene geo-referencing. A global optimization technique is used based on a least squares estimation of the scene geometry parameters given observations which comprise intra-scenes correlation measures, ground control points and nominal scene position derived by orbital parameters and the range-doppler equation. Two acquisitions at different dates are simultaneously included in the estimation process, thus assuring optimal co-registration between dates. A similar technique is used for radiometric calibration of the mosaic. Validation of the multi-temporal radar map's geometry with respect to existing cartographic data-a key issue in view of certain thematic applications-is also discussed. A RMSE (Residual Mean Squared Error) of 56 m was obtained when using tie-points between scenes only. This error characterizes the mosaic internal consistency for scenes down-sampled to a pixel spacing of 100 m. A RMSE of 240 m was obtained when using ground control points (GCP) derived from digital cartographic data.

U2 - 10.1109/IGARSS.1999.774428

DO - 10.1109/IGARSS.1999.774428

M3 - Conference article in proceedings

SN - 978-0-7803-5207-0

SP - 750

EP - 752

BT - IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99).

Y2 - 28 June 1999 through 2 July 1999

ER -

Rauste Y, de Grandi G, Richards T, Rosenqvist Å, Perna G, Franchino E et al. Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project. In IEEE 1999 International Geoscience and Remote Sensing Symposium (IGARSS'99). Remote Sensing of the System Earth - A Challenge for the 21st Century. Hamburg, 28 June - 2 July 1999. IEEE Institute of Electrical and Electronic Engineers. 1999. p. 750-752 doi: 10.1109/IGARSS.1999.774428

Compilation of a bi-temporal JERS SAR mosaic over the African rain forest belt in the GRFM project

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