Open AccessVISIBLE-REGION PHOTOGRAPHIC REMOTE SENSING OF NEARSHORE WATERS
Author(s) -
Tsuguo Sunamura,
Kiyoshi Horikawa
Publication year - 1978
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v16.85
Subject(s) - photography , bathymetry , color photography , remote sensing , filter (signal processing) , computer science , process (computing) , geology , computer graphics (images) , environmental science , computer vision , art , oceanography , visual arts , operating system
By use of a synchronized camera system, multiband black and white photographs and conventional color photographs were taken respectively with the purposes of testing filters available for shallow-water photographic bathymetry, and of checking the availability of low-cost process imagery for the study of coastal processes. Kodak Wratten filters 29, 58, and 90 were employed for the multiband photography. A Wratten 90 filter provided the best correlation between water depth and the photographic density. The low-cost imagery, obtained in a laboratory from the color photographs by applying ordinary filters without using any expensive image processing devices, proved to be useful.