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DEM坡度因子对坡耕地语义分割的敏感性研究

Renmin Zhujiang
探究数字高程模型（Digital Elevation Model，DEM）及其衍生坡度因子在坡耕地语义分割任务中的敏感性，提升坡耕地提取精度；以贵州黔西坡耕地为研究区，构建融合DEM与坡度因子的多源数据集，对比单一光学影像数据集，采用ResNet-UNet、DeepLabv3和SegNet三种语义分割模型进行训练与验证，通过测试集评估分类性能；融合地形数据后，ResNet-UNet与DeepLabv3性能显著提升，其中DeepLabv3整体精度达0.834 4，交并比（Intersection over
姚飞, 孙泉忠, 尹斌, 黄俊, 李浩, 李洋   +5 more
doaj  

[Comparison of effectiveness of multiple metatarsal osteotomy and first metatarsophalangeal arthrodesis for severe metatarsal adductus hallux valgus deformity]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lan S, Li X, Xu X, Zhu Y.
europepmc   +1 more source

黄土高原坡耕地苜蓿产量及水土流失地形分异模拟——以延安燕沟流域为例

, 2010
退耕还林还草是目前黄土高原整治生态环境和控制水土流失的主体政策。为使生态退耕政策得到有效落实,本文基于WIN-YIELD软件,以延安燕沟流域为例,利用2006年延安站的逐日气象数据和燕沟流域地貌、土壤及土地利用等资料,模拟分析了不同地形高程、坡度和坡向条件下坡耕地种植苜蓿的秸秆干物质产量、水土流失量及其地形分异特征。结果表明:在黄土高原,地形坡度是影响苜蓿秸秆干物质产量和泥沙流失的重要因素,苜蓿秸秆产量模拟值随地形坡度的增大而减小,泥沙流失的模拟值随地形坡度的增大而增大;地形高程1000 ...
杨波, 徐勇
core  

[Accuracy of dynamic navigation-assisted trephine method for bone harvesting]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Liu J, Zhu N, Chang Y, Gao X, Zhang Y.
europepmc   +1 more source

[An investigation study on the technology and training level of ski patrol]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Bai P, Huai W, Yang Z, Zhou F, Guo X, Chen Z, Guan H, Bai J.   +7 more
europepmc   +1 more source

[Adolescent depressive disorder: prevalence, risk factors, current status of diagnosis and treatment, and challenges]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Cong EZ.
europepmc   +1 more source

[Bioactive substances delivery for bone repair via nanocomposites: advantages, mechanisms, and emerging trends]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma Y, Du Z, Wang J, Li X.
europepmc   +1 more source

[Ectopic pituitary tumor of sphenoid sinus: a case report]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Pang Y, Zhu D, Sha J, Zheng J, Yang M, Jin G.   +5 more
europepmc   +1 more source

[Clinical analysis of endoscopic transnasal resection of skull base chondrosarcoma]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Yang X, Yan B, Wei W, Liu J, Wang Z.
europepmc   +1 more source

[Tonsillar malignant melanoma presenting as sore throat and tonsillar mass: a case report and literature review]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Xu Z, Xu K, Lu X.
europepmc   +1 more source