Feature based image processing methods applied to bathymetric measurements from airborne remote sensing in fluvial environments

被引:97
作者
Carbonneau, Patrice E.
Lane, Stuart N.
Bergeron, Normand
机构
[1] Univ Durham, Dept Geog, Durham DH1 3LE, England
[2] INRS, Ctr Eau Terre & Environm, Quebec City, PQ G1K 9A9, Canada
关键词
bathymetry; image processing; remote sensing; rivers;
D O I
10.1002/esp.1341
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
Bathymetric maps produced from remotely sensed imagery are increasingly common. However, when this method is applied to fluvial environments, changing scenes and illumination variations severely hinder the application of well established empirical calibration methods used to obtain predictive depth-colour relationships. In this paper, illumination variations are corrected with feature based image processing, which is used to identify areas in an image with a near-zero water depth. This information can then be included in the depth-colour calibration process, which results in an improved prediction quality. The end product is an automated bathymetric mapping method capable of a 4 m(2) spatial resolution with a precision of 15 cm, which allows for a more widespread application of bathymetric mapping. Copyright (c) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码:1413 / 1423
页数:11
相关论文
共 16 条
[1]   Automated grain size measurements from airborne remote sensing for long profile measurements of fluvial grain sizes [J].
Carbonneau, PE ;
Bergeron, N ;
Lane, SN .
WATER RESOURCES RESEARCH, 2005, 41 (11) :1-9
[2]   Catchment-scale mapping of surface grain size in gravel bed rivers using airborne digital imagery [J].
Carbonneau, PE ;
Lane, SN ;
Bergeron, NE .
WATER RESOURCES RESEARCH, 2004, 40 (07) :W072021-W0720211
[3]  
CASTLEMAN K. R., 1996, Digital image processing
[4]   Remote sensing of stream depths with hydraulically assisted bathymetry (HAB) models [J].
Fonstad, MA ;
Marcus, WA .
GEOMORPHOLOGY, 2005, 72 (1-4) :320-339
[5]   Passive optical remote sensing of river channel morphology and in-stream habitat: Physical basis and feasibility [J].
Legleiter, CJ ;
Roberts, DA ;
Marcus, WA ;
Fonstad, MA .
REMOTE SENSING OF ENVIRONMENT, 2004, 93 (04) :493-510
[6]  
LYON JG, 1995, PHOTOGRAMM ENG REM S, V61, P161
[7]  
LYON JG, 1992, PHOTOGRAMM ENG REM S, V58, P951
[8]   High spatial resolution hyperspectral mapping of in-stream habitats, depths, and woody debris in mountain streams [J].
Marcus, WA ;
Legleiter, CJ ;
Aspinall, RJ ;
Boardman, JW ;
Crabtree, RL .
GEOMORPHOLOGY, 2003, 55 (1-4) :363-380
[9]  
MARCUS WA, 2002, J GEOGRAPHICAL SYSTE, V4, P113
[10]  
Richards J.A., 2006, REMOTE SENSING DIGIT