摘要速递|IJIDF 第14卷 第2期
发布日期:2023-12-08来源:浏览次数:0次【字号 大 中 小】
Boosting the multiple aircraft online tracking performance via enriching the associated data with fused targets features
A. M. Awed, Ali Maher, Mohammed A. H. Abozied & Yehia Z. Elhalwagy
Pages: 107-121
To cite this article:
A. M. Awed, Ali Maher, Mohammed A. H. Abozied& Yehia Z. Elhalwagy (2023) Boosting the multiple aircraft online tracking performance via enriching the associated data with fused targets features, International Journal of Image and Data Fusion, 14:2, 107-121, DOI: 10.1080/19479832.2021.1953621.
Evaluation of focal loss based deep neural networks for traffic sign detection
Deepika Kamboj, Sharda Vashisth & Sumeet Saurav
Pages: 122-144
To cite this article:
Deepika Kamboj, Sharda Vashisth& Sumeet Saurav (2023) Evaluation of focal loss based deep neural networks for traffic sign detection, International Journal of Image and Data Fusion, 14:2, 122-144, DOI: 10.1080/19479832.2022.2086304.
基于focal loss的深度神经网络在交通标志检测中的评估
Performance analysis of parameter estimator on non-linear iterative methods for ultra-wideband positioning
Chuanyang Wang, Bing He, Liangliang Shi, Weiduo Huang & Liuxu Shan
Pages: 145-161
To cite this article:
Chuanyang Wang, Bing He, Liangliang Shi, Weiduo Huang &Liuxu Shan (2023) Performance analysis of parameter estimator on non-linear iterative methods for ultra-wideband positioning, International Journal of Image and Data Fusion, 14:2, 145-161, DOI: 10.1080/19479832.2022.2064554.
Reflectance spectroscopy and ASTER mapping of aeolian dunes of Shaqra and Tharmada Provinces, Saudi Arabia: Field validation and laboratory ___confirmation
Yousef Salem, Habes Ghrefat & Rajendran Sankaran
Pages: 162-181
To cite this article:
Yousef Salem, HabesGhrefat& Rajendran Sankaran (2023) Reflectance spectroscopy and ASTER mapping of aeolian dunes of Shaqra and Tharmada Provinces, Saudi Arabia: Field validation and laboratory ___confirmation, International Journal of Image and Data Fusion, 14:2, 162-181, DOI: 10.1080/19479832.2022.2069160.
颗粒尺寸的空间变异性和风沙沙丘的测图对于研究沙尘侵蚀、运输和沙丘运动以及了解沙丘侵蚀和土地退化具有重要意义。本文对17个新月形沙丘采集的68个砂样的粒度、统计参数和矿物组成进行了考察,并评估了这些沙丘的来源和沉积环境。通过对样品的粒度分析,砂子具有平均粒径为2.28 Φ的细粒度特征,分为中等分选(0.59 Φ)、中层(0.97 Φ)和细至粗偏(0.14 Φ)。X射线衍射表明,沙丘主要由石英、方解石和赤铁矿沉积。在0.5、0.9和2.22 μm附近出现的吸收特征证实了沙丘中存在这种铁和铝硅酸盐矿物。使用ASTER卫星数据的TIR波段,按碳酸盐指数(CI)和石英指数(QI)绘制了各省的沙丘。粒度分析、光谱测量、矿物学研究、沙丘测绘结果与野外观测结果吻合较好,实验表明研究区砂矿在风沙环境中具有多种来源。
Surface drainage features identification using LiDAR DEM smoothing in agriculture area: a study case of Kebumen Regency, Indonesia
Hepi H. Handayani, Arizal Bawasir, Agung B. Cahyono, Teguh Hariyanto & Husnul Hidayat
Pages: 182-203
To cite this article:
Hepi H. Handayani, ArizalBawasir, Agung B. Cahyono, TeguhHariyanto&HusnulHidayat (2023) Surface drainage features identification using LiDAR DEM smoothing in agriculture area: a study case of Kebumen Regency, Indonesia, International Journal of Image and Data Fusion, 14:2, 182-203, DOI: 10.1080/19479832.2022.2076160.
DEM是生成排水管网和提供关键地形因素和水文衍生物(如坡度、坡向和径流)的最重要数据。生成的排水特征的准确性很大程度上取决于 DEM 的质量和分辨率,例如 LiDAR 生成的DEM,具有一定的粗糙度和复杂性。因此,有时采用平滑方法来克服粗糙度。本文介绍了一种基于LiDAR DEM来平滑表面复杂性(FPDEM-S)和边缘保持DEM平滑(EPDEM-S)的方法,实验采用印度尼西亚Kebumen Regency的Kedungbener河地区的0.5 m分辨率LiDAR DEM。在进行数据处理纠缠线性形态因子过程中,这些平滑方法在stream number上略有不同,FPDEM-S stream length ratio的趋势有七个百分点的提升。在该研究区域,FPDEM-S方法在一定参数值下提供平滑LiDAR DEM表现要优于EPDEM-S方法。综上所述,两种平滑方法的流域特征相似,为接近圆形的椭圆形结构。此外,实验发现分水岭没有达到成熟阶段。
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(文/ 谢文寒、孙晓霞)