Results 81 to 90 of about 3,055 (149)

Research on Key Technologies of Automatic Registration in Low-altitude High Resolution Remote sensing Images [PDF]

open access: yes, 2013
无人机(UnmannedAerialVehicle,UAV)遥感系统作为一种新兴的遥感技术,因其具有机动性强、实时性好、成本低、可提供厘米级超高分辨率数据等优点,已逐渐成为计算机视觉、图像处理、摄影测量与遥感等领域的研究热点。在无人机航拍图像的处理技术中,图像配准是关键环节,其研究成果可应用于多时遥感变化检测、建筑物3维重建以及多源遥感图像融合等领域。因此,开展低空航拍图像配准技术的研究具有重要的理论意义和广泛应用前景。 本文在综述图像配准技术研究现状的基础上,针对低空遥感图像中的景物透视变形 ...
蔡国榕
core  

Flash DSCT双能量成像检测老年泌尿系结石成分的应用研究

open access: yesZhongguo shiyan zhenduanxue, 2014
泌尿系结石是临床上最常见的疾病之一,治疗方式包括外科手术取石、药物排石以及体外震波碎石等,临床诊断除了明确结石大小、数量、位置以外,结石成分的确认,对于结石治疗计划的选择及科学的预防非常重要[1]。DSCT双能量技术可利用不同能量水平的X线的吸收特征以及组织相对应的CT值变化,通过图像融合重建技术,得出体现组织化学成分组织特性图像[2,3]。我们通过Flash DSCT双能量成像检测老年泌尿系结石成分 ...
金银华, 丛也彤, 宋威
doaj  

Design and Implementation of Indoor Positioning System Based on The Structural Optical Image [PDF]

open access: yes, 2017
室内定位是定位技术的一个重要发展方向。随着物联网技术、机器人技术的发展和广泛应用,室内定位的作用日渐重要,需求也日益增大。虽然目前室外定位技术已经基本成熟并被广泛应用,室内定位与室外定位存在着一定的相似度,但由于室内环境与室外环境相比仍存在着诸多差别,受到很多条件的制约,导致室外定位技术并不能简单地应用于室内定位中。因此,需要针对室内环境的特殊性提供有效的室内定位解决方案。室内定位技术的研究已经在定位领域掀起了热潮,一些室内定位技术已经出现,但在各项性能指标上不尽人意 ...
郭珊珊
core  

Dual-Channel Shoulder Joint X-ray Bone Age Estimation in Chinese Han Adolescents Based on the Fusion of Segmentation Labels and Original Images [PDF]

open access: yes
ObjectiveTo explore a deep learning network model suitable for bone age estimation using shoulder joint X-ray images in Chinese Han adolescents.MethodsA retrospective collection of 1 286 shoulder joint X-ray images of Chinese Han adolescents aged 12.0 to
LI Dan-yang   +6 more
core   +1 more source

Cooperative Detection of Ships in Optical and SAR Remote Sensing Images Based on Neighborhood Saliency [PDF]

open access: yes
In ship detection through remote sensing images, optical images often provide rich details and texture information; however, the quality of such optical images can be affected by cloud and fog interferences.
Gang LI   +6 more
core   +1 more source

Methods Research on Correction for Intracranial Metal Artifacts Based on Prior Image Utilization [PDF]

open access: yes
Objective: A metal artifact correction algorithm based on prior image is proposed to suppress the effect of intracranial metal artifacts on postoperative review.
Guihong PAN   +4 more
core   +1 more source

Multi-view stereo method based on global feature enhancement and geometry-priors(基于全局特征增强和几何先验的多视图立体方法)

open access: yesZhejiang Daxue xuebao. Lixue ban
Although deep learning-based multi-view stereo (MVS) methods have made significant progress, the depth estimation accuracy of MVS for points in weak-texture and texture-less regions still requires further improvement.
CAO Mingwei(曹明伟)   +4 more
doaj   +1 more source

Micro-System of G-FET Device Development and its Key Technology [PDF]

open access: yes, 2017
GFET(石墨烯场效应管)以其超高的电导率和极小的器件尺寸有望续写摩尔定律的神话,成为新一代半导体器件。而构成GFET的核心材料——石墨烯的高品质制备是研究微纳器件性能及其应用的基础和前提。作为传统CVD法和MEMS技术的结合——μCVD(微型化学气相沉积)系统具有低成本、高效率、可重复性等优势,极大地促进了纳米材料制备方案的改进及其应用的发展。 本文首先介绍了GFET的结构特征和制备工艺,相应地阐述了石墨烯的特性、转移技术、工艺目标等,接着从μCVD系统的三个关键技术——结构设计 ...
陈金龙
core  

Subway Tunnel Environment Image Restoration Algorithm Fusing Contrast Stretching [PDF]

open access: yes
The low contrast and blurred details in subway tunnel images pose challenges in accurately extracting key environmental information during subsequent image processing. To solve this problem, this study proposes a blurred image restoration algorithm based
Kang YANG, Yu REN, Xuejie WU
core   +1 more source

Research on Living Liver Image Registration and Its Application [PDF]

open access: yes, 2009
肝脏是人体重要的消化器官,肝脏疾病直接影响人的健康和生存。随着医学、计算机技术及生物医学工程技术的发展,医学影像学为临床诊断提供了多种模式的医学图像,这些图像在医学诊断和治疗中的作用显得非常重要。但是单一模式的图像往往不能提供医生所需要的足够的诊断信息。在实际临床应用中,往往需要将不同模式的医学图像有机地结合起来,得到更丰富的信息以便了解病变组织或器官的综合信息,从而做出准确的诊断或制订出合适的治疗方案,这就首先寻找一种(或一系列)空间变换 ...
黄晓阳
core  

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