Results 91 to 100 of about 5,055 (149)

Moving Vessel Detection At Sea [PDF]

, 2005
视频监控包含了很多计算机智能化问题，目前是一个具有挑战性的研究课题。运动目标的检测、跟踪、识别是视频监控系统中的核心技术，本文研究的是视频监控中海上运动目标的检测部分，它是进行海上运动目标跟踪、分类和识别的基础。当前，视频监控在各行各业得到了广泛的应用，尤其是海上运动目标的检测，已经成为安防应用的重点。因此，本课题的研究对于国家安全的重要领域将有广泛的应用前景。本文研究工作的内容及创新点包括以下几个方面：1．在海面运动舰船视频的预处理中，讨论了视频序列的单帧图像的去噪问题。针对小波变换MRA（Multi-
韦凤梅
core  

OCT在非ST段抬高型急性冠脉综合征临界病变中的应用研究

Zhongguo shiyan zhenduanxue, 2014
光学相干断层成像（OCT）是新出现的医学成像技术,是将光学相干技术与激光扫描共焦技术相结合起来的,并利用波长1 310nm为近红外光源通过光纤维传输信号来产生冠状动脉的图像。OCT的最大优势是它具有10倍于血管内超声的高分辨率（径向分辨率:10-15μm,侧向分辨率:20-25μm）。OCT并且可以精确显示动脉粥样硬化斑块的一系列结构特性如易损斑块、稳定斑块、血栓、斑块钙化、血管夹层等 ...
武军铎, 李龙波, 王珺楠, 李智博, 王金鹏, 贾和   +5 more
doaj  

基于图像融合技术与改进Faster R-CNN的绝缘子故障识别

Gaoya dianqi
为提高地铁接触网绝缘子故障检测精度，文中提出一种融合双流注意力生成对抗网络（DSAGAN）与改进Faster R-CNN的检测框架。针对多源图像特征融合难题，通过DSAGAN实现接触网绝缘子红外与可见光图像的高效融合：生成器采用注意力机制强化关键特征提取，判别器引入最小二乘损失函数替代传统交叉熵，有效保留纹理细节并提升网络稳定性。在故障识别阶段，改进Faster R-CNN模型采用ResNet101替代VGG16作为主干网络，结合残差连接缓解梯度异常问题，并在RPN层嵌入非极大值抑制（NMS ...
耿占权, 苏飞
doaj  

[Application of infrared thermography in breast reconstruction and plastic surgery and limb reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jian H, Mu L, Pan J, He G, Song T, Chen X, Wu H, Xie K, Wang S, Xu Y, Huang L, Liu Y, Guo L, Zhang C, Chen Y, Tang S, Chen P, Liu Y, Xie M, Yang L, Cheng X, Dong Y, Han J, Yang W, Miao Y, Wu H, Yu Y.   +26 more
europepmc   +1 more source

[Strategic orthodontic treatment for multiple mesioangular impacted molars: a case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhan J, Zhang J, Fan W, Fu H, He X, Hu L.   +5 more
europepmc   +1 more source

[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Yan XZ, Chu JH, Li B, Chen XY, Yuan BS, Li HY, Wang GL, Ji Q.   +7 more
europepmc   +1 more source

[Research progress on the application of ultrasound technology in the diagnosis and treatment of lymphedema]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Tang ZY, Liu R, Deng CL.
europepmc   +1 more source

[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

[Indicative effect of indocyanine green-near-infrared fluorescence imaging in the thickness of necrotic dermal tissue in porcine burn wounds]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhang YS, Pan X, Ge YL, Yue JC, Song YX, Song WY, Zhao R.   +6 more
europepmc   +1 more source

[A case of segmental atrophy of the liver in children]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Qiu YL, Mao Y, Lu CL.
europepmc   +1 more source