TY - GEN
T1 - Acquiring underwater DSM using close-range photogrammetry
AU - Hsu, Pu Hsin
AU - Wang, Chi Kuei
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Underwater digital surface model (DSM), which is acquired by through water photogrammetry, is affected by light refraction so the resultant DSM is higher than its true value. Previous researches proposed correction procedures to mitigate this effect, but they show the tendency to over-correct the DSM. In this study, we propose a new correction procedure that based on the empirical relation between the DSM value determined from photogrammetry measurement and that obtained by a measuring probe. This new method is validated by comparing the DSMs of a small object acquired in exposed and underwater conditions.
AB - Underwater digital surface model (DSM), which is acquired by through water photogrammetry, is affected by light refraction so the resultant DSM is higher than its true value. Previous researches proposed correction procedures to mitigate this effect, but they show the tendency to over-correct the DSM. In this study, we propose a new correction procedure that based on the empirical relation between the DSM value determined from photogrammetry measurement and that obtained by a measuring probe. This new method is validated by comparing the DSMs of a small object acquired in exposed and underwater conditions.
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M3 - Conference contribution
AN - SCOPUS:84865694691
SN - 9781618394972
T3 - 32nd Asian Conference on Remote Sensing 2011, ACRS 2011
SP - 267
EP - 272
BT - 32nd Asian Conference on Remote Sensing 2011, ACRS 2011
T2 - 32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Y2 - 3 October 2011 through 7 October 2011
ER -