http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Mansour Shawky (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Mansour Shawky,Chockalingam Jeganathan 대한공간정보학회 2020 Spatial Information Research Vol.28 No.5
Sustainability of date palm trees based economy envisages regular monitoring of spatio-temporal variations of these trees over time. But, field based counting is a very old style of managing trees which is labour intensive, costly and time consuming while modern geo-spatial technologies provides a fast, cheaper and accurate mechanism. In this regard, the current study attempts to formulate a repeatable and robust approach utilising high spatial resolution remote sensing data integrated with image processing technique and GIS functionalities in automatically extracting palm trees. The study was carried out over Al-Ahssa region in Saudi Arabia. Difficulties posed by dark and bright canopy situation is resolved in this study based on appropriate kernel (based on multiscale analysis) along with focal minimum and focal maximum functions, and individual tree locations were identified correctly. Supervised classification technique was utilised to differentiate trees from non-tree areas. The approach has successfully extracted date palm tree locations with an overall accuracy of 93% with an omission error of 5% and commission error of 4%.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
