Results 21 to 30 of about 1,369,544 (152)
全球能源互联网, 2019 电力巡检无人机提供大量的巡检图像，但由于电力设备故障稀少，其中只有少量的设备缺陷故障图像可供使用。为了提高设备缺陷故障识别精度并减少训练过拟合问题，首先介绍了基于迁移学习的小样本电力巡检图像处理方法，通过图像裁剪、翻转、旋转等数据增强技术对小样本图像进行扩充，同时采用生成对抗网络（GAN）来扩充基础样本；并使用迁移学习技术，将基于大规模图像数据的预训练深度卷积模型进行定制，调整该神经网络模型的输入层和最后两层参数，并对超参进行调优。实验结果表明，巡检设备故障（如导线断股和绝缘子串脱落等）准确匹配度近95%
陆继翔 +4 more
doaj +1 more source
Hyperspectral outcrop models for palaeoseismic studies
The Photogrammetric Record, Volume 34, Issue 168, Page 385-407, December 2019., 2019 To overcome the limitations of the traditional study of palaeoseismic trenches, a new workflow is presented that integrates infrared hyperspectral and photogrammetric data. This method was applied on two palaeoseismic trenches excavated across a post‐glacial fault scarp in northern Finnish Lapland.
Moritz Kirsch +19 more
wiley +1 more source
, 2000 以图像相关理论为基础，研究粒子图像测带技术(PIV)的图像处理方法，编制出高精度的处理软件，重建计算模拟的粒子图像位移场，给出了自相关法与互相关法的积相磁与减相关的计算结果，及互相关的误差分析，分析了自相关与互相关区别，得出了互相关法是提高粒子图像测带技术精度的有效方法的结论 ...
申功, 康琦, 段俐
core +2 more sources
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
Patch-wise continuous approach to image zooming(图像缩放的分片连续算法)
Zhejiang Daxue xuebao. Lixue ban, 2002 在图像处理中, 传统的放大或缩小变换不能保证图像内各物体之间边界的清晰, 这往往不能适合许多场合的应用. 为此,提出了一种新的图像缩放方法. 该方法对源图像建立了分片连续数学模型. 应用本方法得到的图像,边界分明、层面清晰、色彩丰富,忠实地反映了原始图像的面貌.
LIJiang-yun(李将云) +2 more
doaj +1 more source
The Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita +3 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2019 为修复受破损且噪声点众多的壁画图像，提出了用偏微分方程（partial differential equation，PDE） 扩散的方法对图像进行降噪修复。针对PDE 法求解精度较低的问题，提出了一种Shannon-Cosine 小波精细积分法，运用小波数值方法对偏微分方程进行离散处理，降低其方程组规模，并采用精细积分法求解，有效提高了计算速度。试验结果表明，采用该算法对受损壁画降噪处理后，视觉上，图像边界更清晰，且噪声点得到有效减少，达到了保边降噪的效果，更符合人眼的视觉效果；客观上，与中值滤波 ...
LILi(李丽) +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The development of neuromorphic electronics with visual perception and adaptive capability is highly desirable for advancing artificial vision systems. Herein, we have demonstrated a dual‐plasticity adaptive phototransistor based on IGZO nanofibers that exhibits the perception and dynamic adaptation behavior of rod and cone cells to varying ...
Shanshan Jiang +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The edge deployment of artificial intelligence has driven the exploitation of compact, energy‐efficient information processing systems that integrate sensing, memory, and multi‐task processing functions. However, conventional vision systems suffer from significant energy/time overhead, extra hardware costs, and an unaffordable algorithm ...
Shanshan Jiang +6 more
wiley +1 more source
Trade credit and corporate digital transformation: The role of managerial ability
Financial Review, Volume 59, Issue 3, Page 779-806, August 2024.Abstract We examine whether managerial ability affects the relationship between corporate digital transformation and trade credit. To measure digital transformation, we perform a textual analysis of companies’ annual reports using a customized Chinese dictionary containing digital transformation keywords based on national policy documents and academic ...
Liukai Wang +3 more
wiley +1 more source