Ian Dowman - Academia.edu (original) (raw)
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Papers by Ian Dowman
ISPRS Journal of Photogrammetry and Remote Sensing, 2016
ISPRS Journal of Photogrammetry and Remote Sensing, 2015
Third International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2015), 2015
ABSTRACT
This paper describes a new model developed at UCL for along track stereo sensors. The model is te... more This paper describes a new model developed at UCL for along track stereo sensors. The model is tested on SPOT HRS data provided under the SPOT Assessment Project (SAP) set up by CNES and ISPRS. The SPOT HRS data has been used to test a new sensor model for along track satellite data, and to generate a DEM using the Leica Photogrammetry Suite (LPS). The model described in this paper uses the collinearity equations in combination with astrodynamics. The main and fundamental point during the development of this model was to benefit from acquisition in the same orbit. The collinearity equations are modified to model the characteristics of a pushbroom scanner and the number of exterior orientation parameters. The state vector at the origin point of each image is computed. The results of testing the model with HRS data show that the model provides a stable, accurate and rigorous solution. The solution for the orientation from the LPS gives similar results to the new model and generates a ...
The Photogrammetric Record, Oct 1, 1991
Integrating Photogrammetric Techniques With Scene Analysis and Machine Vision Ii, Jul 1, 1995
International Archives of Photogrammetry and Remote Sensing Xxxv Pp 90 100, 2004
... Data fusion can be used for many applications. ... Some examples of how DEM data from LiDAR o... more ... Data fusion can be used for many applications. ... Some examples of how DEM data from LiDAR or IfSAR can be combined with other imagery or map data for feature ... Honikel (2002) shows how ERS If SAR and SPOT DEMs can be fused and develops a theory for this; Csanyi and ...
Bulletin Societe Francaise De Photogrammetrie Et De Teledetection, 1991
Photogrammetric Engineering and Remote Sensing, 2008
International Archives of Photogrammetry and Remote Sensing 32, 1999
![Research paper thumbnail of Geoinformation—Remote Sensing, Photogrammetry and Geographic Information Systems. By GOTTFRIED KONECNY. (London: Taylor and Francis, 2002). [Pp. xi+248]. ISBN: 0-415-23795-5. Price £19.99. Paperback](https://attachments.academia-assets.com/48359141/thumbnails/1.jpg)
](Http Dx Doi Org 10 1080 1365881031001592953, Oct 6, 2011
Integrating Photogrammetric Techniques With Scene Analysis and Machine Vision, Sep 1, 1993
ISPRS Journal of Photogrammetry and Remote Sensing, 2016
ISPRS Journal of Photogrammetry and Remote Sensing, 2015
Third International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2015), 2015
ABSTRACT
This paper describes a new model developed at UCL for along track stereo sensors. The model is te... more This paper describes a new model developed at UCL for along track stereo sensors. The model is tested on SPOT HRS data provided under the SPOT Assessment Project (SAP) set up by CNES and ISPRS. The SPOT HRS data has been used to test a new sensor model for along track satellite data, and to generate a DEM using the Leica Photogrammetry Suite (LPS). The model described in this paper uses the collinearity equations in combination with astrodynamics. The main and fundamental point during the development of this model was to benefit from acquisition in the same orbit. The collinearity equations are modified to model the characteristics of a pushbroom scanner and the number of exterior orientation parameters. The state vector at the origin point of each image is computed. The results of testing the model with HRS data show that the model provides a stable, accurate and rigorous solution. The solution for the orientation from the LPS gives similar results to the new model and generates a ...
The Photogrammetric Record, Oct 1, 1991
Integrating Photogrammetric Techniques With Scene Analysis and Machine Vision Ii, Jul 1, 1995
International Archives of Photogrammetry and Remote Sensing Xxxv Pp 90 100, 2004
... Data fusion can be used for many applications. ... Some examples of how DEM data from LiDAR o... more ... Data fusion can be used for many applications. ... Some examples of how DEM data from LiDAR or IfSAR can be combined with other imagery or map data for feature ... Honikel (2002) shows how ERS If SAR and SPOT DEMs can be fused and develops a theory for this; Csanyi and ...
Bulletin Societe Francaise De Photogrammetrie Et De Teledetection, 1991
Photogrammetric Engineering and Remote Sensing, 2008
International Archives of Photogrammetry and Remote Sensing 32, 1999
Http Dx Doi Org 10 1080 1365881031001592953, Oct 6, 2011
Integrating Photogrammetric Techniques With Scene Analysis and Machine Vision, Sep 1, 1993