6. Concluding Remarks References 
Theoretical accuracy assessment of 
  
  
  
  
  
  
  
  
  
  
Digital | Elevation Model(DEM) to be (1D Dowman, I.J. and M. A.O' Neill,  ITIR 
derived from Advanced Spaceborne Thermal Simulation Study, CR report from 
Emission and Reflection University College London for JAPEX 
Radiometer (ASTER) of  EOS-AMI platform Geoscience Institute Inc., p.20, 1991. 
was conducted under the assumptions of 
with/without GCP. As the results, it was (2) Arai. K., An assessment on DEM 
found that RMS error in terms of DEM estimation accuracy with EOS-a/ASTER 
estimation accuracy was 27.98m with GCP. data, US-Japan ASTER Team Meeting, p.12, 
Further by considering a random sensor 1991. 
motion due to active cooler, high gain Ab 
anttena drive, solar paddle drive, etc. (3) Light, D.L., Remote Sensors for | 
MTF degradation was assessed. It "is Mapping : What are the Essential Ac 
found that DEM accuracy degradation can Characteristics, Proc. of the 1989 Ac 
M be supressed under 4.4(*) if the sigma ASPRS/ACSM Annual Convention, p.29. Ac 
| value of the random motion is under 1989. Ag: 
1/5(pixel), 0.88 arcsec. Aj 
i Further investigation is highly (4) Arai,K., An assessment of height Ak 
| required for assessment of experimental estimation accuracy with EOS-a/ASTER, Ak 
| accuracy of DEM estimation with Proceedins of the Spatial Data 2000 Ak 
| simulation data to be derived from Conference, pp. 73 — 75, 1991. Ak: 
i models and existing stereoscopic view of 
| imageries. (5) Arai,K., H.Watanabe,  T.Tagawa and Al 
J. Komai, Digital Elevation Model Al 
| Accuracy Assessment for Advanced Al 
| Spaceborne Thermal Emission and Al 
| Reflection Radiometer (ASTER), Al 
| Proceedings of ISPRS WG IV/3 and  OEEPE Al 
I Commission D Joint Workshop, p.8, 1991. AL 
| (6) Reeves, R.G. Edt., Manual of Remote am 
Sensing, ASPRS, pp.6092 — 693, 1975. An 
; 
Ar. 
; Ar 
Table 7 A relationship between the averaged cross correlation As 
between 9 tip images for stereo matching and MTF degradation At. 
MTF degradation(%) 0 6.25 9. 375 12.5 am 
Cross Correlation 0. 842 0. 809 0. 804 0.743 Ba: 
Ba: 
Bä: 
Ba“ 
: ; : Bav 
Table 8 A relationship between cross correlation between 32 x 32 Be. 
pixels tip images of stereo pair and matching error Be 
Cross Correlation 0. 842 0. 809 0. 804 0. 743 pe 
e: 
Matching Error (pixel) 0.85 1.34 1. 29 1. 88 Bo 
Bo. 
Bo 
Boi 
: + > : =. Bon 
Table 9 A relationship between amplitude of attitude jitter and Br: 
DEM estimation accuracy. 
Br: 
Sigma value of random motion(arcsec)0. 0 0. 44 0.88 1232 Br: 
But 
Stereo Matching Error (pixel) 0.0 0.09 0. 56 2.4 Bui 
But 
DEM accuracy (m) 27.98 28.01 20 21 45.59 By 
Ca: 
Cal 
Ca: 
Ch: 
Ch: 
Ch: 
Che 
Che 
Che 
Chi 
Cl: 
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994