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http://dx.doi.org/10.7780/kjrs.2012.28.5.7

A Comparative Study on the Applicability of A Priori Estimates of Adjustment Models for Assessment of Surface Parameter Estimates  

Seo, Suyoung (Department of Civil Engineering, Kyungpook National University)
Publication Information
Korean Journal of Remote Sensing / v.28, no.5, 2012 , pp. 549-559 More about this Journal
Abstract
This paper presents a comparative analysis on the applicability of a priori statistic information about adjustment models when the surface shape parameters are estimated at an arbitrary point in an elevation data. Although the reliability of the estimates are known to be affected by surface condition and the adjustment models, there has been little research in a systematic and detail way. When the raw data have been taken from a real measurement, its true value cannot be known, however, thus this study used simulation data in order to analyze clearly the applicability of adjustment models. The generation of simulated data was performed by superimposing horizontal, slope, and curve surfaces and adding a certain amount of noise. Comparative analysis was performed by associating the a posteriori estimates with a priori statistics of each adjustment models. The experimental results show the estimation characteristics of adjustment models against varying surface conditions.
Keywords
Elevation data; surface parameter; a priori statistics; applicability; adjustment models; simulation data;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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