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Integrating pseudo-hydrologic logic in road extraction
Year:
2004
Authors :
Cohen, Yafit
;
.
Volume :
64
Co-Authors:
Cohen, Y., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel, Institute of Agricultural Eng., Agricultural Res. Organization, Volcani Center, Bet Dagan 50250, Israel
Shoshany, M., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel
Doytsher, Y., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel
Facilitators :
From page:
43
To page:
52
(
Total pages:
10
)
Abstract:
A pseudo-hydrologic method was developed for road extraction from medium-resolution satellite images. Transformation of image brightness into a Pseudo Digital Elevation Model (PDEM) allows emulation of hydrologic flow. Flow direction and flow accumulation are then calculated for each image pixel using hydrological GIS routines. Road segments are recognized by setting a minimal threshold to the pseudo-flow accumulation. Implementation of the technique to extract major roads and railways from a Spot-panchromatic image yielded high recognition accuracy (90 percent). In another experiment, this technique was used to extract roads in dense urban areas from multispectral IKONOS images. Moderate success (70 percent) was achieved in this task.
Note:
Related Files :
algorithm
Hydrologic modeling
Image processing
Low-level algorithm
pixel
remote sensing
road
Road extraction
satellite imagery
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24523
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:08
Scientific Publication
Integrating pseudo-hydrologic logic in road extraction
64
Cohen, Y., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel, Institute of Agricultural Eng., Agricultural Res. Organization, Volcani Center, Bet Dagan 50250, Israel
Shoshany, M., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel
Doytsher, Y., Dept. of Transp. and GeoInfo. Eng., Faculty of Civil/Environmental Eng., Technion - Israel Inst. of Technol., Haifa 32000, Israel
Integrating pseudo-hydrologic logic in road extraction
A pseudo-hydrologic method was developed for road extraction from medium-resolution satellite images. Transformation of image brightness into a Pseudo Digital Elevation Model (PDEM) allows emulation of hydrologic flow. Flow direction and flow accumulation are then calculated for each image pixel using hydrological GIS routines. Road segments are recognized by setting a minimal threshold to the pseudo-flow accumulation. Implementation of the technique to extract major roads and railways from a Spot-panchromatic image yielded high recognition accuracy (90 percent). In another experiment, this technique was used to extract roads in dense urban areas from multispectral IKONOS images. Moderate success (70 percent) was achieved in this task.
Scientific Publication
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